| Value | Category |
|---|---|
| 1 | No formal schooling |
| 2 | Less than primary school completed |
| 3 | Primary school completed |
| 4 | Less than secondary school completed |
| 5 | Secondary school completed |
| 6 | Tertiary college completed |
| 7 | University completed |
| 8 | Post graduate degree completed |
| 77 | Don’t know |
| 99 | Refused |