| Value | Category | Cases | |
|---|---|---|---|
| 1 | primary | 3354 |
44.3%
|
| 2 | lower secondary | 2345 |
31%
|
| 3 | upper secondary | 1321 |
17.5%
|
| 4 | higher | 543 |
7.2%
|
| 11 | .Z | 676 |