| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 373 |
4.4%
|
| 1 | Primary | 479 |
5.6%
|
| 2 | Lower secondary | 4262 |
49.8%
|
| 3 | Upper secondary | 2249 |
26.3%
|
| 4 | Higher | 1193 |
13.9%
|