| Value |
Category |
| 1 |
No school graduated |
| 2 |
Primary school (grades 1-4) |
| 3 |
Secondary school (grades 5-8) |
| 4 |
Vocational, continuation or apprentice school |
| 5 |
First step of upper-secondary school (grades 9-10) |
| 6 |
Upper-secondary school (grades 9-12) |
| 7 |
Specialised further education or technical school |
| 8 |
University studies of short duration (college) |
| 9 |
University studies of long duration |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.