| Value | Category |
|---|---|
| 1 | None |
| 2 | Elementary/MI and its equivalent |
| 3 | Junior high/MTs/vocational and its equivalent |
| 4 | Senior high/MS and its equivalent |
| 5 | Vocational school |
| 6 | Diploma I/II |
| 7 | Diploma III/junior bachelor |
| 8 | Diploma IV/University |
| 9 | Master degree/doctoral degree |