| Value | Category | Cases | |
|---|---|---|---|
| 1 | Grade seven | 348 |
23.3%
|
| 2 | Grade eight | 483 |
32.3%
|
| 3 | Grade nine | 344 |
23%
|
| 4 | Grade ten | 320 |
21.4%
|
| Sysmiss | 23 |