| Value | Category |
|---|---|
| 1 | Below age |
| 2 | Illiterate |
| 3 | Read and Write |
| 4 | Literacy certificate |
| 5 | Primary |
| 6 | Preparatory |
| 7 | Academic secondary |
| 8 | Vocational secondary |
| 9 | Above Intermediate |
| 10 | University |
| 11 | Post-graduate certificate |
| 12 | Vocational training/ Vocational certifi |
| 13 | Non-formal education certificate |