| Value | Category |
|---|---|
| 0 | Pre-school/Kindergarten |
| 1 | Class 1 |
| 2 | Class 2 |
| 3 | Class 3 |
| 4 | Class 4 |
| 5 | Class 5 |
| 6 | Class 6 |
| 7 | Class 7 |
| 8 | Class 8 |
| 9 | Class 9 |
| 10 | Class 10 |
| 11 | Class 11 |
| 12 | Class 12 |
| 13 | Studying in College/University Undergraduate |
| 14 | College/University Undergraduate Completed |
| 15 | Studying in College/University Graduate |
| 16 | College/University graduate completed |
| 17 | Studying in Post-graduate |
| 18 | Post-graduate Completed |
| 19 | Other |
| 99 | None |