| Value | Category | Cases | |
|---|---|---|---|
| 0 | Pre-primary or none | 39 |
2.9%
|
| 1 | Primary | 11 |
0.8%
|
| 2 | Lower secondary | 116 |
8.7%
|
| 3 | Upper secondary | 575 |
43.3%
|
| 4 | Higher | 401 |
30.2%
|
| Sysmiss | 187 |
14.1%
|