| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 176 |
12.1%
|
| 1 | Primary | 236 |
16.2%
|
| 2 | Lower secondary | 545 |
37.4%
|
| 3 | Upper secondary or higher | 254 |
17.4%
|
| 9 | DK/Missing | 10 |
0.7%
|
| Sysmiss | 238 |
16.3%
|