| Value | Category |
|---|---|
| -1 | Missing |
| 0 | No formal schooling |
| 1 | Informal schooling (including Koranic) only |
| 2 | Some primary schooling |
| 3 | Primary school completed |
| 4 | Some high school |
| 5 | High school completed |
| 6 | Post secondary qualifications (not university ) |
| 7 | Some university, college |
| 8 | University, college completed |
| 9 | Post graduate |