| Value | Category |
|---|---|
| 1 | primary school |
| 2 | lower secondary school |
| 3 | basic vocational school |
| 4 | general secondary school |
| 5 | profiled secondary school |
| 6 | vocational secondary school |
| 7 | post-secondary school |
| 8 | college |
| 9 | tertiary school |
| 10 | tertiary school (Master degree courses) |
| 11 | post-graduate studies |
| 12 | doctorate studies |
| Sysmiss |