| Value | Category | Cases | |
|---|---|---|---|
| 0 | preschool | 1560 |
7.1%
|
| 1 | primary | 11628 |
53.3%
|
| 2 | secondary | 7949 |
36.4%
|
| 3 | higher | 571 |
2.6%
|
| 8 | dk | 122 |
0.6%
|
| Sysmiss | 9845 |