| Value | Category | Cases | |
|---|---|---|---|
| 1 | Form 1/class 7 | 20 |
3.9%
|
| 2 | Form 2/class 8 | 207 |
40.4%
|
| 3 | Form 3 | 161 |
31.4%
|
| 4 | Form 4 | 107 |
20.9%
|
| 5 | Form 5 | 18 |
3.5%
|
| Sysmiss | 29 |