| Value |
Category |
| 0 |
None or grade 0 |
| 1 |
Grade 1 / sub a |
| 2 |
Grade 2 / sub b |
| 3 |
Grade 3 / std 1 / level 1 |
| 4 |
Grade 4 / std 2 / level 2 |
| 5 |
Grade 5 / std 3 / level 3 |
| 6 |
Grade 6 / std 4 / level 4 |
| 7 |
Grade 7 / std 5 / level 5 |
| 8 |
Grade 8 / std 6 / level 6 / form i |
| 9 |
Grade 9 / std 7 / level 7 / form ii |
| 10 |
Grade10 / std 8 / level 8 / form iii / ntc 1 |
| 11 |
Grade 11 / std 9 / certificate of education |
| 12 |
Grade 12 / std 10 / senior certificate |
| 13 |
Unspecified / not reported |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.