Level of educational attainment
- Low: Primary education, prevocational secondary education (VMBO), the first three years of senior general secondary education (HAVO) or pre-university secondary education (VWO) and the secondary vocational assistant's training (MBO-1)
- Intermediate: Upper senior general or pre-university secondary education, basic vocational training (MBO-2), vocational training (MBO-3) and intermediate and specialist vocational training (MBO-4)
- High: University of applied sciences and research university education