| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 333 |
19.3%
|
| 1 | Primary | 329 |
19.1%
|
| 2 | Lower secondary | 593 |
34.5%
|
| 3 | Upper secondary or higher | 236 |
13.7%
|
| 9 | Missing | 2 |
0.1%
|
| Sysmiss | 228 |
13.2%
|