| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 9 |
0.3%
|
| 1 | Primary | 39 |
1.2%
|
| 2 | Lower secondary | 263 |
8.2%
|
| 3 | Upper secondary | 1130 |
35.3%
|
| 4 | Higher | 661 |
20.7%
|
| Sysmiss | 1095 |
34.3%
|