| Value | Category |
|---|---|
| 0 | None |
| 1 | Nursery |
| 2 | Pre School |
| 3 | Kindergarten |
| 4 | Special Education |
| 5 | Don't know |
| 10 | G1/Std 1 |
| 11 | G2/Std 2 |
| 12 | G3/Std 3 |
| 13 | G4/Std 4 |
| 14 | G5/Std 5 |
| 15 | G6/Std 7 |
| 20 | Form 1 |
| 21 | Form 2 |
| 22 | Form 3 |
| 23 | Form 4 |
| 24 | Form 5 |
| 25 | Form 6 |
| 26 | A Level |
| 30 | CFBC-A |
| 31 | CFBC-Tech |
| 32 | CFBC-Level 1 |
| 33 | University UWI |
| 34 | University Other |
| 35 | Other |