| Value | Category |
|---|---|
| 0 | 0. Grade R/0 |
| 1 | 1. Grade 1 |
| 2 | 2. Grade 2 |
| 3 | 3. Grade 3 |
| 4 | 4. Grade 4 |
| 5 | 5. Grade 5 |
| 6 | 6. Grade 6 |
| 7 | 7. Grade 7 |
| 8 | 8. Grade 8 |
| 9 | 9. Grade 9 |
| 10 | 10. Grade 10 |
| 11 | 11. Grade 11 |
| 12 | 12. Grade 12/Matric |
| 13 | 13. NC(V) Level 2 (N1/NTC 1) |
| 14 | 14. NC(V) Level 3 (N1/NTC 2) |
| 15 | 15. NC(V) Level 4 (N1/NTC 3) |
| 16 | 16. Other grade |
| 88 | 88. Not applicable |