| Value | Category |
|---|---|
| 1 | No schooling |
| 2 | Incompleted primary school |
| 3 | Primary school |
| 4 | Package A |
| 5 | General junior high school |
| 6 | Vocational junior high school |
| 7 | Package B |
| 8 | General senior high school |
| 9 | Vocational senior high school |
| 10 | Package C |
| 11 | Diploma I/II |
| 12 | Diploma III |
| 13 | D IV/S1 |
| 14 | S2/S3 |