Author: Rob van de Laar, Jacco Daalmans Publication date: 30/06/2023 06:30

Processing energy prices for the Consumer Price Index

5. Annex: results

5.1 Index series by contract duration

Geary-Khamis index by contract duration for electricity
Jaar	m	GK_FBEW_lpt0_Elek	GK_FBEW_lpt1_2_Elek	GK_FBEW_lpt3_Elek	GK_FBEW_lpt4_5_Elek
2020	January	1	1	1	1
2020	February	1	0.99	1.01	1
2020	March	1	0.99	1.01	1
2020	April	1	0.98	1.01	1
2020	May	0.99	0.97	1.02	1
2020	June	0.99	0.96	1.02	1
2020	July	0.96	0.95	1.02	1
2020	August	0.96	0.95	1.02	1
2020	September	0.96	0.94	1.02	1
2020	Oktober	0.96	0.93	1.02	1
2020	November	0.96	0.93	1.02	1
2020	December	0.96	0.93	1.02	1
2021	January	0.89	0.87	0.97	0.94
2021	February	0.88	0.86	0.97	0.95
2021	March	0.88	0.86	0.97	0.95
2021	April	0.88	0.87	0.98	0.95
2021	May	0.89	0.87	0.98	0.95
2021	June	0.89	0.89	0.98	0.96
2021	July	0.98	0.9	0.99	0.97
2021	August	0.98	0.92	1	0.97
2021	September	0.99	0.94	1	0.98
2021	Oktober	1	0.97	1.01	0.99
2021	November	1.06	1.02	1.02	1
2021	December	1.12	1.07	1.03	1
2022	January	0.96	0.73	0.64	0.62
2022	February	1	0.81	0.65	0.63
2022	March	1	0.89	0.65	0.63
2022	April	1.06	0.96	0.66	0.63
2022	May	1.1	1.01	0.66	0.63
2022	June	1.11	1.07	0.66	0.63
2022	July	1.14	1.03	0.6	0.57
2022	August	1.18	1.09	0.61	0.57
2022	September	1.28	1.14	0.62	0.57
2022	Oktober	1.54	1.18	0.62	0.57
2022	November	2.11	1.23	0.63	0.57
2022	December	2.11	1.47	1.01	0.65
2023	January	2.03	1.66	1.16	1.01
2023	February	2	1.69	1.16	1.01
2023	March	1.97	1.72	1.16	1.01
2023	April	1.84	1.68	1.17	1.01
2023	May	1.8	1.65	1.17	1.01

Geary-Khamis index by contract duration for electricity
Jaar	m	GK_FBEW_lpt0_Elek	GK_FBEW_lpt1_2_Elek	GK_FBEW_lpt3_Elek	GK_FBEW_lpt4_5_Elek
2020	January	1	1	1	1
2020	February	1	0.99	1.01	1
2020	March	1	0.99	1.01	1
2020	April	1	0.98	1.01	1
2020	May	0.99	0.97	1.02	1
2020	June	0.99	0.96	1.02	1
2020	July	0.96	0.95	1.02	1
2020	August	0.96	0.95	1.02	1
2020	September	0.96	0.94	1.02	1
2020	Oktober	0.96	0.93	1.02	1
2020	November	0.96	0.93	1.02	1
2020	December	0.96	0.93	1.02	1
2021	January	0.89	0.87	0.97	0.94
2021	February	0.88	0.86	0.97	0.95
2021	March	0.88	0.86	0.97	0.95
2021	April	0.88	0.87	0.98	0.95
2021	May	0.89	0.87	0.98	0.95
2021	June	0.89	0.89	0.98	0.96
2021	July	0.98	0.9	0.99	0.97
2021	August	0.98	0.92	1	0.97
2021	September	0.99	0.94	1	0.98
2021	Oktober	1	0.97	1.01	0.99
2021	November	1.06	1.02	1.02	1
2021	December	1.12	1.07	1.03	1
2022	January	0.96	0.73	0.64	0.62
2022	February	1	0.81	0.65	0.63
2022	March	1	0.89	0.65	0.63
2022	April	1.06	0.96	0.66	0.63
2022	May	1.1	1.01	0.66	0.63
2022	June	1.11	1.07	0.66	0.63
2022	July	1.14	1.03	0.6	0.57
2022	August	1.18	1.09	0.61	0.57
2022	September	1.28	1.14	0.62	0.57
2022	Oktober	1.54	1.18	0.62	0.57
2022	November	2.11	1.23	0.63	0.57
2022	December	2.11	1.47	1.01	0.65
2023	January	2.03	1.66	1.16	1.01
2023	February	2	1.69	1.16	1.01
2023	March	1.97	1.72	1.16	1.01
2023	April	1.84	1.68	1.17	1.01
2023	May	1.8	1.65	1.17	1.01

Explanation: the Geary-Khamis index by contract duration (0, 1-2, 3 or 4-5 years, see Section 3.3.1) for electricity, calculated using the Fixed-Base Expanding Window (FBEW) extension method (Jan 2020=1). The respondents have been aggregated by contract duration. The series for individual respondents are not shown here for privacy reasons.

Geary-Khamis index by contract duration for natural gas
Jaar	m	GK_FBEW_lpt1_2_Gas	GK_FBEW_lpt0_Gas	GK_FBEW_lpt3_Gas	GK_FBEW_lpt4_5_Gas
2020	January	1	1	1	1
2020	February	0.99	1	1	1
2020	March	0.98	1	1	1
2020	April	0.98	1	1	1
2020	May	0.97	1	1	1
2020	June	0.97	1	1	1
2020	July	0.96	0.95	1	1
2020	August	0.96	0.95	0.99	0.99
2020	September	0.95	0.95	0.99	0.99
2020	Oktober	0.95	0.95	0.99	0.99
2020	November	0.94	0.95	0.99	0.99
2020	December	0.94	0.95	0.99	0.99
2021	January	0.97	0.96	1.02	1.02
2021	February	0.96	0.96	1.02	1.02
2021	March	0.96	0.96	1.02	1.02
2021	April	0.96	0.96	1.02	1.02
2021	May	0.97	0.96	1.02	1.02
2021	June	0.97	0.97	1.02	1.02
2021	July	0.98	0.99	1.02	1.02
2021	August	0.99	0.99	1.02	1.02
2021	September	1	1	1.02	1.02
2021	Oktober	1.01	1	1.02	1.02
2021	November	1.04	1.04	1.03	1.03
2021	December	1.07	1.08	1.03	1.03
2022	January	0.98	1.25	0.87	0.87
2022	February	1.08	1.31	0.88	0.88
2022	March	1.19	1.32	0.88	0.88
2022	April	1.29	1.43	0.89	0.88
2022	May	1.36	1.49	0.89	0.87
2022	June	1.45	1.51	0.89	0.88
2022	July	1.41	1.63	0.81	0.79
2022	August	1.5	1.66	0.82	0.79
2022	September	1.58	1.81	0.83	0.79
2022	Oktober	1.64	2.18	0.84	0.79
2022	November	1.71	2.86	0.85	0.79
2022	December	1.76	2.86	0.85	0.79
2023	January	1.86	2.06	1.31	1.27
2023	February	1.86	2.02	1.31	1.27
2023	March	1.85	1.99	1.31	1.27
2023	April	1.81	1.82	1.32	1.27
2023	May	1.76	1.75	1.32	1.27

Geary-Khamis index by contract duration for natural gas
Jaar	m	GK_FBEW_lpt1_2_Gas	GK_FBEW_lpt0_Gas	GK_FBEW_lpt3_Gas	GK_FBEW_lpt4_5_Gas
2020	January	1	1	1	1
2020	February	0.99	1	1	1
2020	March	0.98	1	1	1
2020	April	0.98	1	1	1
2020	May	0.97	1	1	1
2020	June	0.97	1	1	1
2020	July	0.96	0.95	1	1
2020	August	0.96	0.95	0.99	0.99
2020	September	0.95	0.95	0.99	0.99
2020	Oktober	0.95	0.95	0.99	0.99
2020	November	0.94	0.95	0.99	0.99
2020	December	0.94	0.95	0.99	0.99
2021	January	0.97	0.96	1.02	1.02
2021	February	0.96	0.96	1.02	1.02
2021	March	0.96	0.96	1.02	1.02
2021	April	0.96	0.96	1.02	1.02
2021	May	0.97	0.96	1.02	1.02
2021	June	0.97	0.97	1.02	1.02
2021	July	0.98	0.99	1.02	1.02
2021	August	0.99	0.99	1.02	1.02
2021	September	1	1	1.02	1.02
2021	Oktober	1.01	1	1.02	1.02
2021	November	1.04	1.04	1.03	1.03
2021	December	1.07	1.08	1.03	1.03
2022	January	0.98	1.25	0.87	0.87
2022	February	1.08	1.31	0.88	0.88
2022	March	1.19	1.32	0.88	0.88
2022	April	1.29	1.43	0.89	0.88
2022	May	1.36	1.49	0.89	0.87
2022	June	1.45	1.51	0.89	0.88
2022	July	1.41	1.63	0.81	0.79
2022	August	1.5	1.66	0.82	0.79
2022	September	1.58	1.81	0.83	0.79
2022	Oktober	1.64	2.18	0.84	0.79
2022	November	1.71	2.86	0.85	0.79
2022	December	1.76	2.86	0.85	0.79
2023	January	1.86	2.06	1.31	1.27
2023	February	1.86	2.02	1.31	1.27
2023	March	1.85	1.99	1.31	1.27
2023	April	1.81	1.82	1.32	1.27
2023	May	1.76	1.75	1.32	1.27

Explanation: the Geary-Khamis index by contract duration (0, 1-2, 3 or 4-5 years, see Section 3.3.1) for natural gas, calculated using the Fixed-Base Expanding Window (FBEW) extension method (Jan 2020=1). The respondents have been aggregated by contract duration.

5.2 Derived series

Derived index series for electricity
Jaar	m	GK_pb_Elek_afg	GK_FBEW_ps_Elek_afg	GK_pb_Elek
2020	January	1	1	1
2020	February	1	1	1
2020	March	1	1	1
2020	April	1	1	1
2020	May	1	1	1
2020	June	1	1	0.99
2020	July	0.99	0.99	0.98
2020	August	0.98	0.98	0.98
2020	September	0.98	0.98	0.97
2020	Oktober	0.98	0.98	0.97
2020	November	0.98	0.98	0.97
2020	December	0.98	0.98	0.97
2021	January	1.02	1.02	0.91
2021	February	1.02	1.02	0.91
2021	March	1.02	1.02	0.91
2021	April	1.02	1.02	0.91
2021	May	1.03	1.03	0.91
2021	June	1.03	1.03	0.92
2021	July	1.08	1.08	0.97
2021	August	1.09	1.09	0.98
2021	September	1.1	1.1	0.98
2021	Oktober	1.11	1.11	1
2021	November	1.15	1.15	1.04
2021	December	1.2	1.2	1.08
2022	January	1.36	1.36	0.82
2022	February	1.4	1.4	0.86
2022	March	1.41	1.41	0.87
2022	April	1.46	1.46	0.91
2022	May	1.49	1.49	0.94
2022	June	1.51	1.51	0.96
2022	July	1.63	1.63	0.95
2022	August	1.66	1.66	0.98
2022	September	1.74	1.74	1.05
2022	Oktober	1.96	1.95	1.22
2022	November	2.45	2.43	1.62
2022	December	2.54	2.53	1.69
2023	January	1.9	1.89	1.7
2023	February	1.87	1.86	1.68
2023	March	1.84	1.83	1.66
2023	April	1.72	1.72	1.58
2023	May	1.7	1.69	1.55

Derived index series for electricity
Jaar	m	GK_pb_Elek_afg	GK_FBEW_ps_Elek_afg	GK_pb_Elek
2020	January	1	1	1
2020	February	1	1	1
2020	March	1	1	1
2020	April	1	1	1
2020	May	1	1	1
2020	June	1	1	0.99
2020	July	0.99	0.99	0.98
2020	August	0.98	0.98	0.98
2020	September	0.98	0.98	0.97
2020	Oktober	0.98	0.98	0.97
2020	November	0.98	0.98	0.97
2020	December	0.98	0.98	0.97
2021	January	1.02	1.02	0.91
2021	February	1.02	1.02	0.91
2021	March	1.02	1.02	0.91
2021	April	1.02	1.02	0.91
2021	May	1.03	1.03	0.91
2021	June	1.03	1.03	0.92
2021	July	1.08	1.08	0.97
2021	August	1.09	1.09	0.98
2021	September	1.1	1.1	0.98
2021	Oktober	1.11	1.11	1
2021	November	1.15	1.15	1.04
2021	December	1.2	1.2	1.08
2022	January	1.36	1.36	0.82
2022	February	1.4	1.4	0.86
2022	March	1.41	1.41	0.87
2022	April	1.46	1.46	0.91
2022	May	1.49	1.49	0.94
2022	June	1.51	1.51	0.96
2022	July	1.63	1.63	0.95
2022	August	1.66	1.66	0.98
2022	September	1.74	1.74	1.05
2022	Oktober	1.96	1.95	1.22
2022	November	2.45	2.43	1.62
2022	December	2.54	2.53	1.69
2023	January	1.9	1.89	1.7
2023	February	1.87	1.86	1.68
2023	March	1.84	1.83	1.66
2023	April	1.72	1.72	1.58
2023	May	1.7	1.69	1.55

Explanation: the derived Geary-Khamis series for electricity with intermediate step per respondent (“GK_pb_Elek_afg”) and without intermediate step per respondent (“GK_FBEW_ps_Elek_afg”), and the standard (non-derived) Geary-Khamis series for electricity (“GK_pb_Elek”) (Jan 2020=1).

Derived index series for natural gas
Jaar	m	GK_pb_Gas	GK_pb_Gas_afg	GK_FBEW_ps_Gas_afg
2020	January	1	1	1
2020	February	1	1	1
2020	March	1	1	1
2020	April	1	0.99	0.99
2020	May	0.99	0.99	0.99
2020	June	0.99	0.99	0.99
2020	July	0.97	0.97	0.97
2020	August	0.97	0.96	0.96
2020	September	0.96	0.96	0.96
2020	Oktober	0.96	0.96	0.96
2020	November	0.96	0.96	0.96
2020	December	0.96	0.96	0.96
2021	January	0.98	0.95	0.95
2021	February	0.98	0.95	0.95
2021	March	0.98	0.95	0.95
2021	April	0.98	0.95	0.95
2021	May	0.98	0.95	0.95
2021	June	0.98	0.95	0.95
2021	July	1	0.97	0.97
2021	August	1	0.97	0.97
2021	September	1.01	0.97	0.97
2021	Oktober	1.01	0.98	0.98
2021	November	1.04	1.01	1.01
2021	December	1.06	1.03	1.03
2022	January	1.09	1.22	1.22
2022	February	1.14	1.26	1.27
2022	March	1.16	1.29	1.29
2022	April	1.23	1.36	1.36
2022	May	1.28	1.4	1.4
2022	June	1.3	1.42	1.42
2022	July	1.35	1.61	1.61
2022	August	1.38	1.64	1.64
2022	September	1.47	1.75	1.75
2022	Oktober	1.72	2.02	2.01
2022	November	2.19	2.53	2.5
2022	December	2.2	2.54	2.5
2023	January	1.75	1.53	1.51
2023	February	1.73	1.5	1.48
2023	March	1.7	1.48	1.46
2023	April	1.59	1.36	1.34
2023	May	1.54	1.3	1.28

Derived index series for natural gas
Jaar	m	GK_pb_Gas	GK_pb_Gas_afg	GK_FBEW_ps_Gas_afg
2020	January	1	1	1
2020	February	1	1	1
2020	March	1	1	1
2020	April	1	0.99	0.99
2020	May	0.99	0.99	0.99
2020	June	0.99	0.99	0.99
2020	July	0.97	0.97	0.97
2020	August	0.97	0.96	0.96
2020	September	0.96	0.96	0.96
2020	Oktober	0.96	0.96	0.96
2020	November	0.96	0.96	0.96
2020	December	0.96	0.96	0.96
2021	January	0.98	0.95	0.95
2021	February	0.98	0.95	0.95
2021	March	0.98	0.95	0.95
2021	April	0.98	0.95	0.95
2021	May	0.98	0.95	0.95
2021	June	0.98	0.95	0.95
2021	July	1	0.97	0.97
2021	August	1	0.97	0.97
2021	September	1.01	0.97	0.97
2021	Oktober	1.01	0.98	0.98
2021	November	1.04	1.01	1.01
2021	December	1.06	1.03	1.03
2022	January	1.09	1.22	1.22
2022	February	1.14	1.26	1.27
2022	March	1.16	1.29	1.29
2022	April	1.23	1.36	1.36
2022	May	1.28	1.4	1.4
2022	June	1.3	1.42	1.42
2022	July	1.35	1.61	1.61
2022	August	1.38	1.64	1.64
2022	September	1.47	1.75	1.75
2022	Oktober	1.72	2.02	2.01
2022	November	2.19	2.53	2.5
2022	December	2.2	2.54	2.5
2023	January	1.75	1.53	1.51
2023	February	1.73	1.5	1.48
2023	March	1.7	1.48	1.46
2023	April	1.59	1.36	1.34
2023	May	1.54	1.3	1.28

Explanation: the derived Geary-Khamis series for natural gas with intermediate step per respondent (“GK_pb_Gas_afg”) and without intermediate step per respondent (“GK_FBEW_ps_Gas_afg”), and the standard (non-derived) Geary-Khamis series for natural gas (“GK_pb_Gas”) (Jan 2020=1).

Derived index series for all expenditures
Jaar	m	GK_pb_All_afg	GK_FBEW_ps_All_afg	GK_pb_All
2020	January	1.000	1.000	1.000
2020	February	1.007	1.007	1.007
2020	March	1.009	1.009	1.009
2020	April	1.014	1.014	1.014
2020	May	1.013	1.013	1.013
2020	June	1.016	1.016	1.016
2020	July	1.027	1.027	1.027
2020	August	1.021	1.021	1.021
2020	September	1.019	1.019	1.019
2020	Oktober	1.024	1.024	1.024
2020	November	1.016	1.016	1.016
2020	December	1.018	1.018	1.018
2021	January	1.016	1.016	1.016
2021	February	1.025	1.024	1.025
2021	March	1.027	1.027	1.027
2021	April	1.031	1.031	1.031
2021	May	1.032	1.032	1.032
2021	June	1.034	1.033	1.034
2021	July	1.038	1.038	1.038
2021	August	1.042	1.042	1.042
2021	September	1.041	1.041	1.041
2021	Oktober	1.050	1.049	1.050
2021	November	1.051	1.051	1.051
2021	December	1.054	1.053	1.054
2022	January	1.064	1.048	1.064
2022	February	1.076	1.060	1.076
2022	March	1.086	1.070	1.086
2022	April	1.100	1.084	1.100
2022	May	1.106	1.090	1.106
2022	June	1.113	1.098	1.113
2022	July	1.132	1.109	1.132
2022	August	1.138	1.115	1.138
2022	September	1.145	1.121	1.145
2022	Oktober	1.169	1.144	1.170
2022	November	1.191	1.165	1.193
2022	December	1.199	1.173	1.201
2023	January	1.183	1.169	1.184
2023	February	1.196	1.182	1.197
2023	March	1.199	1.185	1.201
2023	April	1.210	1.195	1.211

Derived index series for all expenditures
Jaar	m	GK_pb_All_afg	GK_FBEW_ps_All_afg	GK_pb_All
2020	January	1.000	1.000	1.000
2020	February	1.007	1.007	1.007
2020	March	1.009	1.009	1.009
2020	April	1.014	1.014	1.014
2020	May	1.013	1.013	1.013
2020	June	1.016	1.016	1.016
2020	July	1.027	1.027	1.027
2020	August	1.021	1.021	1.021
2020	September	1.019	1.019	1.019
2020	Oktober	1.024	1.024	1.024
2020	November	1.016	1.016	1.016
2020	December	1.018	1.018	1.018
2021	January	1.016	1.016	1.016
2021	February	1.025	1.024	1.025
2021	March	1.027	1.027	1.027
2021	April	1.031	1.031	1.031
2021	May	1.032	1.032	1.032
2021	June	1.034	1.033	1.034
2021	July	1.038	1.038	1.038
2021	August	1.042	1.042	1.042
2021	September	1.041	1.041	1.041
2021	Oktober	1.050	1.049	1.050
2021	November	1.051	1.051	1.051
2021	December	1.054	1.053	1.054
2022	January	1.064	1.048	1.064
2022	February	1.076	1.060	1.076
2022	March	1.086	1.070	1.086
2022	April	1.100	1.084	1.100
2022	May	1.106	1.090	1.106
2022	June	1.113	1.098	1.113
2022	July	1.132	1.109	1.132
2022	August	1.138	1.115	1.138
2022	September	1.145	1.121	1.145
2022	Oktober	1.169	1.144	1.170
2022	November	1.191	1.165	1.193
2022	December	1.199	1.173	1.201
2023	January	1.183	1.169	1.184
2023	February	1.196	1.182	1.197
2023	March	1.199	1.185	1.201
2023	April	1.210	1.195	1.211

Explanation: the derived Geary-Khamis series for all expenditures with intermediate step per respondent (“GK_pb_All_afg”) and without intermediate step per respondent (“GK_FBEW_ps_All_afg”), and the standard (non-derived) Geary-Khamis series for electricity (“GK_pb_All”) (Jan 2020=1).

5.3 Series including a method switch

The charts below show the annual-overlap results for a hypothetical switch in April 2023, along with the corresponding year-on-year changes. However, the actual switch happened in June 2023, so the charts look different in practice.

Method switch for electricity
Jaar	m	Pub_Elek	GK_pb_Elek	Ov_ao_Elek
2020	January	1	1	1
2020	February	0.99	1	0.99
2020	March	0.98	1	0.98
2020	April	0.96	1	0.96
2020	May	0.95	1	0.95
2020	June	0.94	0.99	0.94
2020	July	0.94	0.98	0.94
2020	August	0.94	0.98	0.94
2020	September	0.95	0.97	0.95
2020	Oktober	0.95	0.97	0.95
2020	November	0.96	0.97	0.96
2020	December	0.96	0.97	0.96
2021	January	0.91	0.91	0.91
2021	February	0.94	0.91	0.94
2021	March	0.95	0.91	0.95
2021	April	0.97	0.91	0.97
2021	May	0.97	0.91	0.97
2021	June	1	0.92	1
2021	July	1.09	0.97	1.09
2021	August	1.1	0.98	1.1
2021	September	1.18	0.98	1.18
2021	Oktober	1.33	1	1.33
2021	November	1.68	1.04	1.68
2021	December	1.95	1.08	1.95
2022	January	1.92	0.82	1.92
2022	February	1.83	0.86	1.83
2022	March	2.69	0.87	2.69
2022	April	2.47	0.91	2.47
2022	May	2.12	0.94	2.12
2022	June	2	0.96	2
2022	July	2.35	0.95	2.35
2022	August	2.74	0.98	2.74
2022	September	3.4	1.05	3.4
2022	Oktober	3.47	1.22	3.47
2022	November	2.85	1.62	2.85
2022	December	2.82	1.69	2.82
2023	January	2.17	1.7	2.17
2023	February	2.1	1.68	2.1
2023	March	2.03	1.66	2.03
2023	April	2.06	1.58	1.53
2023	May	NA	1.55	1.51

Method switch for electricity
Jaar	m	Pub_Elek	GK_pb_Elek	Ov_ao_Elek
2020	January	1	1	1
2020	February	0.99	1	0.99
2020	March	0.98	1	0.98
2020	April	0.96	1	0.96
2020	May	0.95	1	0.95
2020	June	0.94	0.99	0.94
2020	July	0.94	0.98	0.94
2020	August	0.94	0.98	0.94
2020	September	0.95	0.97	0.95
2020	Oktober	0.95	0.97	0.95
2020	November	0.96	0.97	0.96
2020	December	0.96	0.97	0.96
2021	January	0.91	0.91	0.91
2021	February	0.94	0.91	0.94
2021	March	0.95	0.91	0.95
2021	April	0.97	0.91	0.97
2021	May	0.97	0.91	0.97
2021	June	1	0.92	1
2021	July	1.09	0.97	1.09
2021	August	1.1	0.98	1.1
2021	September	1.18	0.98	1.18
2021	Oktober	1.33	1	1.33
2021	November	1.68	1.04	1.68
2021	December	1.95	1.08	1.95
2022	January	1.92	0.82	1.92
2022	February	1.83	0.86	1.83
2022	March	2.69	0.87	2.69
2022	April	2.47	0.91	2.47
2022	May	2.12	0.94	2.12
2022	June	2	0.96	2
2022	July	2.35	0.95	2.35
2022	August	2.74	0.98	2.74
2022	September	3.4	1.05	3.4
2022	Oktober	3.47	1.22	3.47
2022	November	2.85	1.62	2.85
2022	December	2.82	1.69	2.82
2023	January	2.17	1.7	2.17
2023	February	2.1	1.68	2.1
2023	March	2.03	1.66	2.03
2023	April	2.06	1.58	1.53
2023	May	NA	1.55	1.51

Explanation: switch with annual-overlap (“ao_”) for electricity. The switch series (“Ov_ao_Elek”) coincides with the published series (“Pub_Elek”) until the month of the switch. From that month onwards, the switch series (“Ov_ao_Elek”) roughly coincides with the transaction data index (“GK_pb_Elek”).

Method switch for natural gas
Jaar	m	GK_pb_Gas	Ov_ao_Gas	Pub_Gas
2020	January	1	1	1
2020	February	1	0.99	0.99
2020	March	1	0.98	0.98
2020	April	1	0.97	0.97
2020	May	0.99	0.97	0.97
2020	June	0.99	0.96	0.96
2020	July	0.97	0.94	0.94
2020	August	0.97	0.94	0.94
2020	September	0.96	0.94	0.94
2020	Oktober	0.96	0.95	0.95
2020	November	0.96	0.95	0.95
2020	December	0.96	0.95	0.95
2021	January	0.98	0.98	0.98
2021	February	0.98	0.99	0.99
2021	March	0.98	1	1
2021	April	0.98	1	1
2021	May	0.98	1	1
2021	June	0.98	1.01	1.01
2021	July	1	1.05	1.05
2021	August	1	1.07	1.07
2021	September	1.01	1.12	1.12
2021	Oktober	1.01	1.23	1.23
2021	November	1.04	1.45	1.45
2021	December	1.06	1.58	1.58
2022	January	1.09	1.82	1.82
2022	February	1.14	1.74	1.74
2022	March	1.16	2.6	2.6
2022	April	1.23	2.41	2.41
2022	May	1.28	2.1	2.1
2022	June	1.3	1.85	1.85
2022	July	1.35	2.26	2.26
2022	August	1.38	2.89	2.89
2022	September	1.47	3.67	3.67
2022	Oktober	1.72	3.69	3.69
2022	November	2.19	2.53	2.53
2022	December	2.2	2.53	2.53
2023	January	1.75	1.47	1.47
2023	February	1.73	1.39	1.39
2023	March	1.7	1.32	1.32
2023	April	1.59	1.56	1.27
2023	May	1.54	1.51	NA

Method switch for natural gas
Jaar	m	GK_pb_Gas	Ov_ao_Gas	Pub_Gas
2020	January	1	1	1
2020	February	1	0.99	0.99
2020	March	1	0.98	0.98
2020	April	1	0.97	0.97
2020	May	0.99	0.97	0.97
2020	June	0.99	0.96	0.96
2020	July	0.97	0.94	0.94
2020	August	0.97	0.94	0.94
2020	September	0.96	0.94	0.94
2020	Oktober	0.96	0.95	0.95
2020	November	0.96	0.95	0.95
2020	December	0.96	0.95	0.95
2021	January	0.98	0.98	0.98
2021	February	0.98	0.99	0.99
2021	March	0.98	1	1
2021	April	0.98	1	1
2021	May	0.98	1	1
2021	June	0.98	1.01	1.01
2021	July	1	1.05	1.05
2021	August	1	1.07	1.07
2021	September	1.01	1.12	1.12
2021	Oktober	1.01	1.23	1.23
2021	November	1.04	1.45	1.45
2021	December	1.06	1.58	1.58
2022	January	1.09	1.82	1.82
2022	February	1.14	1.74	1.74
2022	March	1.16	2.6	2.6
2022	April	1.23	2.41	2.41
2022	May	1.28	2.1	2.1
2022	June	1.3	1.85	1.85
2022	July	1.35	2.26	2.26
2022	August	1.38	2.89	2.89
2022	September	1.47	3.67	3.67
2022	Oktober	1.72	3.69	3.69
2022	November	2.19	2.53	2.53
2022	December	2.2	2.53	2.53
2023	January	1.75	1.47	1.47
2023	February	1.73	1.39	1.39
2023	March	1.7	1.32	1.32
2023	April	1.59	1.56	1.27
2023	May	1.54	1.51	NA

Explanation: switch with annual-overlap (“ao_”) for natural gas. Until the month of the switch, the published series (“Pub_Gas”) coincides with the switch series (“Ov_ao_Gas”). From that month onwards, the switch series (“Ov_ao_Gas”) roughly coincides with the transaction data index (“GK_pb_Gas”).

Method switch for all expenditures
Jaar	m	GK_pb_All	Ov_ao_All	Pub_All
2020	January	1	1	1
2020	February	1.007	1.006	1.006
2020	March	1.009	1.008	1.008
2020	April	1.014	1.013	1.013
2020	May	1.013	1.011	1.011
2020	June	1.016	1.015	1.015
2020	July	1.027	1.026	1.026
2020	August	1.021	1.020	1.020
2020	September	1.019	1.018	1.018
2020	Oktober	1.024	1.024	1.024
2020	November	1.016	1.015	1.015
2020	December	1.018	1.018	1.018
2021	January	1.016	1.016	1.016
2021	February	1.024	1.025	1.025
2021	March	1.027	1.027	1.027
2021	April	1.031	1.032	1.032
2021	May	1.032	1.033	1.033
2021	June	1.033	1.035	1.035
2021	July	1.038	1.040	1.040
2021	August	1.042	1.045	1.045
2021	September	1.041	1.046	1.046
2021	Oktober	1.049	1.059	1.059
2021	November	1.051	1.068	1.068
2021	December	1.053	1.076	1.076
2022	January	1.048	1.081	1.081
2022	February	1.060	1.088	1.088
2022	March	1.070	1.127	1.127
2022	April	1.084	1.131	1.131
2022	May	1.090	1.123	1.123
2022	June	1.098	1.124	1.124
2022	July	1.109	1.147	1.147
2022	August	1.115	1.170	1.170
2022	September	1.121	1.197	1.197
2022	Oktober	1.144	1.210	1.210
2022	November	1.165	1.173	1.173
2022	December	1.173	1.179	1.179
2023	January	1.169	1.163	1.163
2023	February	1.182	1.174	1.174
2023	March	1.185	1.177	1.177
2023	April	1.195	1.194	1.189
2023	May

Method switch for all expenditures
Jaar	m	GK_pb_All	Ov_ao_All	Pub_All
2020	January	1	1	1
2020	February	1.007	1.006	1.006
2020	March	1.009	1.008	1.008
2020	April	1.014	1.013	1.013
2020	May	1.013	1.011	1.011
2020	June	1.016	1.015	1.015
2020	July	1.027	1.026	1.026
2020	August	1.021	1.020	1.020
2020	September	1.019	1.018	1.018
2020	Oktober	1.024	1.024	1.024
2020	November	1.016	1.015	1.015
2020	December	1.018	1.018	1.018
2021	January	1.016	1.016	1.016
2021	February	1.024	1.025	1.025
2021	March	1.027	1.027	1.027
2021	April	1.031	1.032	1.032
2021	May	1.032	1.033	1.033
2021	June	1.033	1.035	1.035
2021	July	1.038	1.040	1.040
2021	August	1.042	1.045	1.045
2021	September	1.041	1.046	1.046
2021	Oktober	1.049	1.059	1.059
2021	November	1.051	1.068	1.068
2021	December	1.053	1.076	1.076
2022	January	1.048	1.081	1.081
2022	February	1.060	1.088	1.088
2022	March	1.070	1.127	1.127
2022	April	1.084	1.131	1.131
2022	May	1.090	1.123	1.123
2022	June	1.098	1.124	1.124
2022	July	1.109	1.147	1.147
2022	August	1.115	1.170	1.170
2022	September	1.121	1.197	1.197
2022	Oktober	1.144	1.210	1.210
2022	November	1.165	1.173	1.173
2022	December	1.173	1.179	1.179
2023	January	1.169	1.163	1.163
2023	February	1.182	1.174	1.174
2023	March	1.185	1.177	1.177
2023	April	1.195	1.194	1.189
2023	May

Explanation: switch with annual-overlap (“ao_”) for all expenditures. Until the month of the switch, the published series (“Pub_All”) coincides with the switch series (“Ov_ao_All”). From that month onwards, the switch series (“Ov_ao_All”) roughly coincides with the transaction data index (“GK_pb_All”).

Year-on-year change with method switch for electricity
Jaar	m	jm_GK_pb_Elek	jm_Pub_Elek	jm_Ov_ao_Elek
2021	January	0.91	0.91	0.91
2021	February	0.91	0.95	0.95
2021	March	0.91	0.98	0.98
2021	April	0.91	1.01	1.01
2021	May	0.92	1.03	1.03
2021	June	0.92	1.06	1.06
2021	July	0.99	1.16	1.16
2021	August	1	1.16	1.16
2021	September	1.01	1.24	1.24
2021	Oktober	1.02	1.4	1.4
2021	November	1.07	1.75	1.75
2021	December	1.11	2.04	2.04
2022	January	0.9	2.11	2.11
2022	February	0.95	1.94	1.94
2022	March	0.96	2.82	2.82
2022	April	1	2.56	2.56
2022	May	1.03	2.18	2.18
2022	June	1.04	2	2
2022	July	0.99	2.17	2.17
2022	August	1.01	2.5	2.5
2022	September	1.07	2.88	2.88
2022	Oktober	1.23	2.62	2.62
2022	November	1.56	1.7	1.7
2022	December	1.56	1.44	1.44
2023	January	2.07	1.13	1.13
2023	February	1.96	1.15	1.15
2023	March	1.91	0.76	0.76
2023	April	1.72	0.83	0.62
2023	May	1.65	NA	0.71

Year-on-year change with method switch for electricity
Jaar	m	jm_GK_pb_Elek	jm_Pub_Elek	jm_Ov_ao_Elek
2021	January	0.91	0.91	0.91
2021	February	0.91	0.95	0.95
2021	March	0.91	0.98	0.98
2021	April	0.91	1.01	1.01
2021	May	0.92	1.03	1.03
2021	June	0.92	1.06	1.06
2021	July	0.99	1.16	1.16
2021	August	1	1.16	1.16
2021	September	1.01	1.24	1.24
2021	Oktober	1.02	1.4	1.4
2021	November	1.07	1.75	1.75
2021	December	1.11	2.04	2.04
2022	January	0.9	2.11	2.11
2022	February	0.95	1.94	1.94
2022	March	0.96	2.82	2.82
2022	April	1	2.56	2.56
2022	May	1.03	2.18	2.18
2022	June	1.04	2	2
2022	July	0.99	2.17	2.17
2022	August	1.01	2.5	2.5
2022	September	1.07	2.88	2.88
2022	Oktober	1.23	2.62	2.62
2022	November	1.56	1.7	1.7
2022	December	1.56	1.44	1.44
2023	January	2.07	1.13	1.13
2023	February	1.96	1.15	1.15
2023	March	1.91	0.76	0.76
2023	April	1.72	0.83	0.62
2023	May	1.65	NA	0.71

Explanation: the annual-overlap year-on-year changes (“jm_Ov_ao_Elek”) coincide with those of the published series (“jm_Pub_Elek”) until the month of the switch. From that month onwards, there is no clear interpretation for the year-on-year changes of the switch series (“jm_Ov_ao_Elek”). They clearly do not coincide with the year-on-year changes of the new transaction data index (“jm_GK_pb_Elek”), as the year-on-year changes of the switch series compare an index from the new method with a figure from the old method.

Year-on-year change with method switch for natural gas
jaar	m	jm_GK_pb_Gas	jm_Ov_ao_Gas	jm_Pub_Gas
2021	January	0.98	0.98	0.98
2021	February	0.98	0.99	0.99
2021	March	0.98	1.01	1.01
2021	April	0.99	1.03	1.03
2021	May	0.99	1.03	1.03
2021	June	0.99	1.05	1.05
2021	July	1.03	1.12	1.12
2021	August	1.04	1.13	1.13
2021	September	1.04	1.18	1.18
2021	Oktober	1.05	1.31	1.31
2021	November	1.08	1.53	1.53
2021	December	1.1	1.66	1.66
2022	January	1.11	1.86	1.86
2022	February	1.16	1.76	1.76
2022	March	1.18	2.61	2.61
2022	April	1.26	2.41	2.41
2022	May	1.3	2.09	2.09
2022	June	1.32	1.83	1.83
2022	July	1.35	2.14	2.14
2022	August	1.37	2.7	2.7
2022	September	1.47	3.29	3.29
2022	Oktober	1.7	2.99	2.99
2022	November	2.12	1.74	1.74
2022	December	2.08	1.6	1.6
2023	January	1.61	0.81	0.81
2023	February	1.52	0.8	0.8
2023	March	1.47	0.51	0.51
2023	April	1.28	0.65	0.53
2023	May	1.2	0.72	NA

Year-on-year change with method switch for natural gas
jaar	m	jm_GK_pb_Gas	jm_Ov_ao_Gas	jm_Pub_Gas
2021	January	0.98	0.98	0.98
2021	February	0.98	0.99	0.99
2021	March	0.98	1.01	1.01
2021	April	0.99	1.03	1.03
2021	May	0.99	1.03	1.03
2021	June	0.99	1.05	1.05
2021	July	1.03	1.12	1.12
2021	August	1.04	1.13	1.13
2021	September	1.04	1.18	1.18
2021	Oktober	1.05	1.31	1.31
2021	November	1.08	1.53	1.53
2021	December	1.1	1.66	1.66
2022	January	1.11	1.86	1.86
2022	February	1.16	1.76	1.76
2022	March	1.18	2.61	2.61
2022	April	1.26	2.41	2.41
2022	May	1.3	2.09	2.09
2022	June	1.32	1.83	1.83
2022	July	1.35	2.14	2.14
2022	August	1.37	2.7	2.7
2022	September	1.47	3.29	3.29
2022	Oktober	1.7	2.99	2.99
2022	November	2.12	1.74	1.74
2022	December	2.08	1.6	1.6
2023	January	1.61	0.81	0.81
2023	February	1.52	0.8	0.8
2023	March	1.47	0.51	0.51
2023	April	1.28	0.65	0.53
2023	May	1.2	0.72	NA

Explanation: the year-on-year changes of the switch series (“jm_Ov_ao_Gas”) coincide with those of the published series (“jm_Pub_Gas”) until the month of the switch.

From that month onwards, there is no clear interpretation for the year-on-year changes of the switch series (“jm_Ov_ao_Gas”). They clearly do not coincide with the year-on-year changes of the new transaction data index (“jm_GK_pb_Gas”), as the year-on-year changes of the switch series compare an index from the new method with a figure from the old method.

Method switch for all expenditures
Jaar	m	GK_pb_All	Ov_ao_All	Pub_All
2020	January	1	1	1
2020	February	1.007	1.006	1.006
2020	March	1.009	1.008	1.008
2020	April	1.014	1.013	1.013
2020	May	1.013	1.011	1.011
2020	June	1.016	1.015	1.015
2020	July	1.027	1.026	1.026
2020	August	1.021	1.020	1.020
2020	September	1.019	1.018	1.018
2020	Oktober	1.024	1.024	1.024
2020	November	1.016	1.015	1.015
2020	December	1.018	1.018	1.018
2021	January	1.016	1.016	1.016
2021	February	1.024	1.025	1.025
2021	March	1.027	1.027	1.027
2021	April	1.031	1.032	1.032
2021	May	1.032	1.033	1.033
2021	June	1.033	1.035	1.035
2021	July	1.038	1.040	1.040
2021	August	1.042	1.045	1.045
2021	September	1.041	1.046	1.046
2021	Oktober	1.049	1.059	1.059
2021	November	1.051	1.068	1.068
2021	December	1.053	1.076	1.076
2022	January	1.048	1.081	1.081
2022	February	1.060	1.088	1.088
2022	March	1.070	1.127	1.127
2022	April	1.084	1.131	1.131
2022	May	1.090	1.123	1.123
2022	June	1.098	1.124	1.124
2022	July	1.109	1.147	1.147
2022	August	1.115	1.170	1.170
2022	September	1.121	1.197	1.197
2022	Oktober	1.144	1.210	1.210
2022	November	1.165	1.173	1.173
2022	December	1.173	1.179	1.179
2023	January	1.169	1.163	1.163
2023	February	1.182	1.174	1.174
2023	March	1.185	1.177	1.177
2023	April	1.195	1.194	1.189

Method switch for all expenditures
Jaar	m	GK_pb_All	Ov_ao_All	Pub_All
2020	January	1	1	1
2020	February	1.007	1.006	1.006
2020	March	1.009	1.008	1.008
2020	April	1.014	1.013	1.013
2020	May	1.013	1.011	1.011
2020	June	1.016	1.015	1.015
2020	July	1.027	1.026	1.026
2020	August	1.021	1.020	1.020
2020	September	1.019	1.018	1.018
2020	Oktober	1.024	1.024	1.024
2020	November	1.016	1.015	1.015
2020	December	1.018	1.018	1.018
2021	January	1.016	1.016	1.016
2021	February	1.024	1.025	1.025
2021	March	1.027	1.027	1.027
2021	April	1.031	1.032	1.032
2021	May	1.032	1.033	1.033
2021	June	1.033	1.035	1.035
2021	July	1.038	1.040	1.040
2021	August	1.042	1.045	1.045
2021	September	1.041	1.046	1.046
2021	Oktober	1.049	1.059	1.059
2021	November	1.051	1.068	1.068
2021	December	1.053	1.076	1.076
2022	January	1.048	1.081	1.081
2022	February	1.060	1.088	1.088
2022	March	1.070	1.127	1.127
2022	April	1.084	1.131	1.131
2022	May	1.090	1.123	1.123
2022	June	1.098	1.124	1.124
2022	July	1.109	1.147	1.147
2022	August	1.115	1.170	1.170
2022	September	1.121	1.197	1.197
2022	Oktober	1.144	1.210	1.210
2022	November	1.165	1.173	1.173
2022	December	1.173	1.179	1.179
2023	January	1.169	1.163	1.163
2023	February	1.182	1.174	1.174
2023	March	1.185	1.177	1.177
2023	April	1.195	1.194	1.189

Explanation: the year-on-year changes of the switch series (“jm_Ov_ao_All”) coincide with those of the published series (“jm_Pub_All”) until the month of the switch. From that month onwards, there is no clear interpretation for the year-on-year changes of the switch series (“jm_Ov_ao_All”). They clearly do not coincide with the year-on-year changes of the new transaction data index (“jm_GK_pb_All”), as the year-on-year changes of the switch series compare an index from the new method with a figure from the old method.

5.4 Geary-Khamis and unit-value indices

Geary-Khamis and unit-value indices for electricity
Jaar	m	Pub_Elek	uv_index_Elek	GK_pb_Elek
2020	January	1	1	1
2020	February	0.99	1	1
2020	March	0.98	1	1
2020	April	0.96	1	1
2020	May	0.95	1	1
2020	June	0.94	0.99	0.99
2020	July	0.94	0.98	0.98
2020	August	0.94	0.97	0.98
2020	September	0.95	0.97	0.97
2020	Oktober	0.95	0.97	0.97
2020	November	0.96	0.97	0.97
2020	December	0.96	0.97	0.97
2021	January	0.91	0.91	0.91
2021	February	0.94	0.91	0.91
2021	March	0.95	0.91	0.91
2021	April	0.97	0.91	0.91
2021	May	0.97	0.91	0.91
2021	June	1	0.92	0.92
2021	July	1.09	0.97	0.97
2021	August	1.1	0.98	0.98
2021	September	1.18	0.99	0.98
2021	Oktober	1.33	1	1
2021	November	1.68	1.04	1.04
2021	December	1.95	1.09	1.08
2022	January	1.92	0.83	0.82
2022	February	1.83	0.88	0.86
2022	March	2.69	0.89	0.87
2022	April	2.47	0.94	0.91
2022	May	2.12	0.98	0.94
2022	June	2	1	0.96
2022	July	2.35	1	0.95
2022	August	2.74	1.04	0.98
2022	September	3.4	1.12	1.05
2022	Oktober	3.47	1.3	1.22
2022	November	2.85	1.73	1.62
2022	December	2.82	1.82	1.69
2023	January	2.17	1.85	1.7
2023	February	2.1	1.83	1.68
2023	March	2.03	1.82	1.66
2023	April	2.06	1.73	1.58
2023	May	NA	1.7	1.55

Geary-Khamis and unit-value indices for electricity
Jaar	m	Pub_Elek	uv_index_Elek	GK_pb_Elek
2020	January	1	1	1
2020	February	0.99	1	1
2020	March	0.98	1	1
2020	April	0.96	1	1
2020	May	0.95	1	1
2020	June	0.94	0.99	0.99
2020	July	0.94	0.98	0.98
2020	August	0.94	0.97	0.98
2020	September	0.95	0.97	0.97
2020	Oktober	0.95	0.97	0.97
2020	November	0.96	0.97	0.97
2020	December	0.96	0.97	0.97
2021	January	0.91	0.91	0.91
2021	February	0.94	0.91	0.91
2021	March	0.95	0.91	0.91
2021	April	0.97	0.91	0.91
2021	May	0.97	0.91	0.91
2021	June	1	0.92	0.92
2021	July	1.09	0.97	0.97
2021	August	1.1	0.98	0.98
2021	September	1.18	0.99	0.98
2021	Oktober	1.33	1	1
2021	November	1.68	1.04	1.04
2021	December	1.95	1.09	1.08
2022	January	1.92	0.83	0.82
2022	February	1.83	0.88	0.86
2022	March	2.69	0.89	0.87
2022	April	2.47	0.94	0.91
2022	May	2.12	0.98	0.94
2022	June	2	1	0.96
2022	July	2.35	1	0.95
2022	August	2.74	1.04	0.98
2022	September	3.4	1.12	1.05
2022	Oktober	3.47	1.3	1.22
2022	November	2.85	1.73	1.62
2022	December	2.82	1.82	1.69
2023	January	2.17	1.85	1.7
2023	February	2.1	1.83	1.68
2023	March	2.03	1.82	1.66
2023	April	2.06	1.73	1.58
2023	May	NA	1.7	1.55

Explanation: “Pub” is the published index for electricity based on ACM data, “uv” is the unit-value index based on transaction data, “GK_pb” is the Geary-Khamis index based on transaction data, with the series calculated by respondent (“pb”) as an intermediate step.

Geary-Khamis and unit-value indices for natural gas
Jaar	m	uv_index_Gas	GK_pb_Gas	Pub_Gas
2020	January	1	1	1
2020	February	1	1	0.99
2020	March	1	1	0.98
2020	April	0.99	1	0.97
2020	May	0.99	0.99	0.97
2020	June	0.99	0.99	0.96
2020	July	0.97	0.97	0.94
2020	August	0.96	0.97	0.94
2020	September	0.96	0.96	0.94
2020	Oktober	0.96	0.96	0.95
2020	November	0.96	0.96	0.95
2020	December	0.96	0.96	0.95
2021	January	0.98	0.98	0.98
2021	February	0.98	0.98	0.99
2021	March	0.98	0.98	1
2021	April	0.98	0.98	1
2021	May	0.98	0.98	1
2021	June	0.98	0.98	1.01
2021	July	1	1	1.05
2021	August	1	1	1.07
2021	September	1	1.01	1.12
2021	Oktober	1.01	1.01	1.23
2021	November	1.04	1.04	1.45
2021	December	1.06	1.06	1.58
2022	January	1.1	1.09	1.82
2022	February	1.16	1.14	1.74
2022	March	1.19	1.16	2.6
2022	April	1.27	1.23	2.41
2022	May	1.32	1.28	2.1
2022	June	1.35	1.3	1.85
2022	July	1.41	1.35	2.26
2022	August	1.44	1.38	2.89
2022	September	1.56	1.47	3.67
2022	Oktober	1.82	1.72	3.69
2022	November	2.33	2.19	2.53
2022	December	2.34	2.2	2.53
2023	January	1.89	1.75	1.47
2023	February	1.87	1.73	1.39
2023	March	1.85	1.7	1.32
2023	April	1.73	1.59	1.27
2023	May	1.67	1.54	NA

Geary-Khamis and unit-value indices for natural gas
Jaar	m	uv_index_Gas	GK_pb_Gas	Pub_Gas
2020	January	1	1	1
2020	February	1	1	0.99
2020	March	1	1	0.98
2020	April	0.99	1	0.97
2020	May	0.99	0.99	0.97
2020	June	0.99	0.99	0.96
2020	July	0.97	0.97	0.94
2020	August	0.96	0.97	0.94
2020	September	0.96	0.96	0.94
2020	Oktober	0.96	0.96	0.95
2020	November	0.96	0.96	0.95
2020	December	0.96	0.96	0.95
2021	January	0.98	0.98	0.98
2021	February	0.98	0.98	0.99
2021	March	0.98	0.98	1
2021	April	0.98	0.98	1
2021	May	0.98	0.98	1
2021	June	0.98	0.98	1.01
2021	July	1	1	1.05
2021	August	1	1	1.07
2021	September	1	1.01	1.12
2021	Oktober	1.01	1.01	1.23
2021	November	1.04	1.04	1.45
2021	December	1.06	1.06	1.58
2022	January	1.1	1.09	1.82
2022	February	1.16	1.14	1.74
2022	March	1.19	1.16	2.6
2022	April	1.27	1.23	2.41
2022	May	1.32	1.28	2.1
2022	June	1.35	1.3	1.85
2022	July	1.41	1.35	2.26
2022	August	1.44	1.38	2.89
2022	September	1.56	1.47	3.67
2022	Oktober	1.82	1.72	3.69
2022	November	2.33	2.19	2.53
2022	December	2.34	2.2	2.53
2023	January	1.89	1.75	1.47
2023	February	1.87	1.73	1.39
2023	March	1.85	1.7	1.32
2023	April	1.73	1.59	1.27
2023	May	1.67	1.54	NA

Explanation: “Pub” is the published index for natural gas based on ACM data, “uv” is the unit-value index based on transaction data, “GK_pb” is the Geary-Khamis index based on transaction data, with the series calculated by respondent (“pb”) as an intermediate step.

Geary-Khamis and unit-value indices for all expenditures
Jaar	m	uv_index_All	GK_pb_All	Pub_All
2020	January	1	1	1
2020	February	1.01	1.01	1.01
2020	March	1.01	1.01	1.01
2020	April	1.01	1.01	1.01
2020	May	1.01	1.01	1.01
2020	June	1.02	1.02	1.01
2020	July	1.03	1.03	1.03
2020	August	1.02	1.02	1.02
2020	September	1.02	1.02	1.02
2020	Oktober	1.02	1.02	1.02
2020	November	1.02	1.02	1.02
2020	December	1.02	1.02	1.02
2021	January	1.02	1.02	1.02
2021	February	1.02	1.02	1.02
2021	March	1.03	1.03	1.03
2021	April	1.03	1.03	1.03
2021	May	1.03	1.03	1.03
2021	June	1.03	1.03	1.03
2021	July	1.04	1.04	1.04
2021	August	1.04	1.04	1.04
2021	September	1.04	1.04	1.05
2021	Oktober	1.05	1.05	1.06
2021	November	1.05	1.05	1.07
2021	December	1.05	1.05	1.08
2022	January	1.05	1.05	1.08
2022	February	1.06	1.06	1.09
2022	March	1.07	1.07	1.13
2022	April	1.09	1.08	1.13
2022	May	1.09	1.09	1.12
2022	June	1.1	1.1	1.12
2022	July	1.11	1.11	1.15
2022	August	1.12	1.11	1.17
2022	September	1.13	1.12	1.2
2022	Oktober	1.15	1.14	1.21
2022	November	1.17	1.16	1.17
2022	December	1.18	1.17	1.18
2023	January	1.18	1.17	1.16
2023	February	1.19	1.18	1.17
2023	March	1.19	1.19	1.18
2023	April	1.2	1.19	1.19
2023	May

Geary-Khamis and unit-value indices for all expenditures
Jaar	m	uv_index_All	GK_pb_All	Pub_All
2020	January	1	1	1
2020	February	1.01	1.01	1.01
2020	March	1.01	1.01	1.01
2020	April	1.01	1.01	1.01
2020	May	1.01	1.01	1.01
2020	June	1.02	1.02	1.01
2020	July	1.03	1.03	1.03
2020	August	1.02	1.02	1.02
2020	September	1.02	1.02	1.02
2020	Oktober	1.02	1.02	1.02
2020	November	1.02	1.02	1.02
2020	December	1.02	1.02	1.02
2021	January	1.02	1.02	1.02
2021	February	1.02	1.02	1.02
2021	March	1.03	1.03	1.03
2021	April	1.03	1.03	1.03
2021	May	1.03	1.03	1.03
2021	June	1.03	1.03	1.03
2021	July	1.04	1.04	1.04
2021	August	1.04	1.04	1.04
2021	September	1.04	1.04	1.05
2021	Oktober	1.05	1.05	1.06
2021	November	1.05	1.05	1.07
2021	December	1.05	1.05	1.08
2022	January	1.05	1.05	1.08
2022	February	1.06	1.06	1.09
2022	March	1.07	1.07	1.13
2022	April	1.09	1.08	1.13
2022	May	1.09	1.09	1.12
2022	June	1.1	1.1	1.12
2022	July	1.11	1.11	1.15
2022	August	1.12	1.11	1.17
2022	September	1.13	1.12	1.2
2022	Oktober	1.15	1.14	1.21
2022	November	1.17	1.16	1.17
2022	December	1.18	1.17	1.18
2023	January	1.18	1.17	1.16
2023	February	1.19	1.18	1.17
2023	March	1.19	1.19	1.18
2023	April	1.2	1.19	1.19
2023	May

Explanation: the unit-value and Geary-Khamis series of electricity and natural gas are combined here with the series of the other (non-energy) product groups within household spending, to create an index for all expenditures: the CPI. The unpublished series for the other product groups was derived from the published series for all expenditures, electricity and natural gas.

5.5 Geary-Khamis and unit-value: year-on-year changes

Year-on-year change Geary-Khamis and unit-value indices for electricity
Jaar	m	jm_uv_index_Elek	jm_GK_pb_Elek	jm_Pub_Elek
2021	January	0.91	0.91	0.91
2021	February	0.91	0.91	0.95
2021	March	0.91	0.91	0.98
2021	April	0.91	0.91	1.01
2021	May	0.92	0.92	1.03
2021	June	0.93	0.92	1.06
2021	July	0.99	0.99	1.16
2021	August	1	1	1.16
2021	September	1.01	1.01	1.24
2021	Oktober	1.03	1.02	1.4
2021	November	1.07	1.07	1.75
2021	December	1.12	1.11	2.04
2022	January	0.92	0.9	2.11
2022	February	0.97	0.95	1.94
2022	March	0.98	0.96	2.82
2022	April	1.04	1	2.56
2022	May	1.07	1.03	2.18
2022	June	1.09	1.04	2
2022	July	1.03	0.99	2.17
2022	August	1.06	1.01	2.5
2022	September	1.13	1.07	2.88
2022	Oktober	1.3	1.23	2.62
2022	November	1.66	1.56	1.7
2022	December	1.67	1.56	1.44
2023	January	2.22	2.07	1.13
2023	February	2.08	1.96	1.15
2023	March	2.04	1.91	0.76
2023	April	1.83	1.72	0.83
2023	May	1.74	1.65	NA

Year-on-year change Geary-Khamis and unit-value indices for electricity
Jaar	m	jm_uv_index_Elek	jm_GK_pb_Elek	jm_Pub_Elek
2021	January	0.91	0.91	0.91
2021	February	0.91	0.91	0.95
2021	March	0.91	0.91	0.98
2021	April	0.91	0.91	1.01
2021	May	0.92	0.92	1.03
2021	June	0.93	0.92	1.06
2021	July	0.99	0.99	1.16
2021	August	1	1	1.16
2021	September	1.01	1.01	1.24
2021	Oktober	1.03	1.02	1.4
2021	November	1.07	1.07	1.75
2021	December	1.12	1.11	2.04
2022	January	0.92	0.9	2.11
2022	February	0.97	0.95	1.94
2022	March	0.98	0.96	2.82
2022	April	1.04	1	2.56
2022	May	1.07	1.03	2.18
2022	June	1.09	1.04	2
2022	July	1.03	0.99	2.17
2022	August	1.06	1.01	2.5
2022	September	1.13	1.07	2.88
2022	Oktober	1.3	1.23	2.62
2022	November	1.66	1.56	1.7
2022	December	1.67	1.56	1.44
2023	January	2.22	2.07	1.13
2023	February	2.08	1.96	1.15
2023	March	2.04	1.91	0.76
2023	April	1.83	1.72	0.83
2023	May	1.74	1.65	NA

Explanation: the year-on-year changes (“jm_”) of the Geary-Khamis, unit-value and published (“Pub”) series for electricity.

Year-on-year change Geary-Khamis and unit-value indices for natural gas
Jaar	m	jm_uv_index_Gas	jm_GK_pb_Gas	jm_Pub_Gas
2021	January	0.98	0.98	0.98
2021	February	0.98	0.98	0.99
2021	March	0.98	0.98	1.01
2021	April	0.98	0.99	1.03
2021	May	0.99	0.99	1.03
2021	June	0.99	0.99	1.05
2021	July	1.03	1.03	1.12
2021	August	1.04	1.04	1.13
2021	September	1.04	1.04	1.18
2021	Oktober	1.05	1.05	1.31
2021	November	1.08	1.08	1.53
2021	December	1.1	1.1	1.66
2022	January	1.12	1.11	1.86
2022	February	1.18	1.16	1.76
2022	March	1.21	1.18	2.61
2022	April	1.29	1.26	2.41
2022	May	1.35	1.3	2.09
2022	June	1.37	1.32	1.83
2022	July	1.41	1.35	2.14
2022	August	1.44	1.37	2.7
2022	September	1.55	1.47	3.29
2022	Oktober	1.8	1.7	2.99
2022	November	2.25	2.12	1.74
2022	December	2.21	2.08	1.6
2023	January	1.72	1.61	0.81
2023	February	1.61	1.52	0.8
2023	March	1.56	1.47	0.51
2023	April	1.36	1.28	0.53
2023	May	1.26	1.2	NA

Year-on-year change Geary-Khamis and unit-value indices for natural gas
Jaar	m	jm_uv_index_Gas	jm_GK_pb_Gas	jm_Pub_Gas
2021	January	0.98	0.98	0.98
2021	February	0.98	0.98	0.99
2021	March	0.98	0.98	1.01
2021	April	0.98	0.99	1.03
2021	May	0.99	0.99	1.03
2021	June	0.99	0.99	1.05
2021	July	1.03	1.03	1.12
2021	August	1.04	1.04	1.13
2021	September	1.04	1.04	1.18
2021	Oktober	1.05	1.05	1.31
2021	November	1.08	1.08	1.53
2021	December	1.1	1.1	1.66
2022	January	1.12	1.11	1.86
2022	February	1.18	1.16	1.76
2022	March	1.21	1.18	2.61
2022	April	1.29	1.26	2.41
2022	May	1.35	1.3	2.09
2022	June	1.37	1.32	1.83
2022	July	1.41	1.35	2.14
2022	August	1.44	1.37	2.7
2022	September	1.55	1.47	3.29
2022	Oktober	1.8	1.7	2.99
2022	November	2.25	2.12	1.74
2022	December	2.21	2.08	1.6
2023	January	1.72	1.61	0.81
2023	February	1.61	1.52	0.8
2023	March	1.56	1.47	0.51
2023	April	1.36	1.28	0.53
2023	May	1.26	1.2	NA

Explanation: the year-on-year changes (“jm_”) of the Geary-Khamis, unit-value and published (“Pub”) series for natural gas.

Year-on-year change Geary-Khamis and unit-value indices for all expenditures
Jaar	m	jm_uv_index_All	jm_GK_pb_All	jm_Pub_All
2021	January	1.02	1.02	1.02
2021	February	1.02	1.02	1.02
2021	March	1.02	1.02	1.02
2021	April	1.02	1.02	1.02
2021	May	1.02	1.02	1.02
2021	June	1.02	1.02	1.02
2021	July	1.01	1.01	1.01
2021	August	1.02	1.02	1.02
2021	September	1.02	1.02	1.03
2021	Oktober	1.02	1.02	1.03
2021	November	1.03	1.03	1.05
2021	December	1.03	1.03	1.06
2022	January	1.03	1.03	1.06
2022	February	1.04	1.04	1.06
2022	March	1.04	1.04	1.1
2022	April	1.05	1.05	1.1
2022	May	1.06	1.06	1.09
2022	June	1.06	1.06	1.09
2022	July	1.07	1.07	1.1
2022	August	1.07	1.07	1.12
2022	September	1.08	1.08	1.15
2022	Oktober	1.1	1.09	1.14
2022	November	1.11	1.11	1.1
2022	December	1.12	1.11	1.1
2023	January	1.12	1.12	1.08
2023	February	1.12	1.11	1.08
2023	March	1.11	1.11	1.04
2023	April	1.11	1.1	1.05
2023	May

Year-on-year change Geary-Khamis and unit-value indices for all expenditures
Jaar	m	jm_uv_index_All	jm_GK_pb_All	jm_Pub_All
2021	January	1.02	1.02	1.02
2021	February	1.02	1.02	1.02
2021	March	1.02	1.02	1.02
2021	April	1.02	1.02	1.02
2021	May	1.02	1.02	1.02
2021	June	1.02	1.02	1.02
2021	July	1.01	1.01	1.01
2021	August	1.02	1.02	1.02
2021	September	1.02	1.02	1.03
2021	Oktober	1.02	1.02	1.03
2021	November	1.03	1.03	1.05
2021	December	1.03	1.03	1.06
2022	January	1.03	1.03	1.06
2022	February	1.04	1.04	1.06
2022	March	1.04	1.04	1.1
2022	April	1.05	1.05	1.1
2022	May	1.06	1.06	1.09
2022	June	1.06	1.06	1.09
2022	July	1.07	1.07	1.1
2022	August	1.07	1.07	1.12
2022	September	1.08	1.08	1.15
2022	Oktober	1.1	1.09	1.14
2022	November	1.11	1.11	1.1
2022	December	1.12	1.11	1.1
2023	January	1.12	1.12	1.08
2023	February	1.12	1.11	1.08
2023	March	1.11	1.11	1.04
2023	April	1.11	1.1	1.05
2023	May

Explanation: the year-on-year changes (“jm_”) of the Geary-Khamis, unit-value and published (“Pub”) series for all expenditures (CPI).