| Value | Category | Cases | |
|---|---|---|---|
| 0 | Preschool/kindergarten | 0 |
0%
|
| 1 | Primary | 90 |
75%
|
| 2 | Secondary | 18 |
15%
|
| 3 | Higher | 11 |
9.2%
|
| 6 | Non-standard curriculum | 1 |
0.8%
|
| 8 | DK | 0 |
0%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 72 |