| Value | Category |
|---|---|
| 01 | Illiterate |
| 02 | Read and write without a certificate |
| 03 | Illiteracy eradication program |
| 04 | Primary |
| 05 | Preparatory |
| 06 | Intermediate |
| 07 | Above intermediate |
| 08 | University |
| 09 | Higher diploma |
| 10 | Masters |
| 11 | Doctorate |
| 98 | Unknown |
| 99 | NIU (not in universe) |