| Value | Category |
|---|---|
| 0 | Less than 1 year completed |
| 1 | Grade 1 completed |
| 2 | Grade 2 completed |
| 3 | Grade 3 completed |
| 4 | Grade 4 completed |
| 5 | Grade 5 completed |
| 6 | Grade 6 completed |
| 7 | Grade 7 completed |
| 8 | Grade 8 completed |
| 9 | Grade 9 completed |
| 10 | Grade 10 completed |
| 11 | Grade 11 and above |
| 94 | School based pre-primary centers |
| 95 | Informal pre-school |
| 98 | Don't know |