| Value | Category |
|---|---|
| 0 | 0. No |
| 1 | 1. No (because I am still studying) |
| 2 | 2. Yes, a university degree |
| 3 | 3. Yes, a trade certificate |
| 4 | 4. Yes, other technical qualification |
| 5 | 5. Yes, a nursing diploma |
| 6 | 6. Yes, a teaching diploma |
| 7 | 7. Yes, other diploma |
| 8 | 8. Yes, a certificate |
| 9 | 9. Yes, other certificate |
| 996 | 996. Other |
| Sysmiss |