| Value | Category | Cases | |
|---|---|---|---|
| 0 | Pre-primary or none | 75 |
12.7%
|
| 1 | Primary | 107 |
18.1%
|
| 2 | Lower secondary | 88 |
14.9%
|
| 3 | Upper secondary or higher | 31 |
5.2%
|
| Sysmiss | 290 |
49.1%
|