| Value | Category |
|---|---|
| -44 | |
| -66 | |
| -99 | |
| DID NOT GO TO ANY SCHOOL | |
| DON'T KNOW | |
| DONT KNOW | |
| Deceased/Did not Know Parents | |
| Did not attend any school | |
| Does not know | |
| NOT SURE | |
| Not applicable, deceased | |
| Respondent cannot tell | |
| They died when at class 3 | |
| cannot tell | |
| respondent does not know |