| Value | Category |
|---|---|
| 1 | None |
| 2 | Nursery |
| 3 | Standard I |
| 4 | Standard II |
| 5 | Standard III |
| 6 | Standard IV |
| 7 | Standard V |
| 8 | Standard VI |
| 9 | Standard VII |
| 10 | Standard VIII |
| 11 | Form I |
| 12 | Form II |
| 13 | Form III |
| 14 | Form IV |
| 15 | Madrassah Grade 5 |
| 16 | Madrassah Grade 6 |
| 17 | Diploma |
| 18 | Degree |
| 19 | Postgraduate |
| 20 | |
| 97 | Other - specify |
| Sysmiss |