| Value | Category | Cases | |
|---|---|---|---|
| 1 | primary | 4330 |
67.4%
|
| 2 | lowest secondary | 1483 |
23.1%
|
| 3 | upper secondary | 476 |
7.4%
|
| 4 | higher | 139 |
2.2%
|
| 11 | .Z | 1804 |