| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 104 |
1.6%
|
| 1 | Primary | 150 |
2.3%
|
| 2 | Lower secondary | 1609 |
24.8%
|
| 3 | Upper secondary | 1804 |
27.8%
|
| 4 | Higher | 1608 |
24.8%
|
| Sysmiss | 1208 |
18.6%
|