| Value | Category | Cases | |
|---|---|---|---|
| 1 | Class 6 | 34 |
4.5%
|
| 2 | Class 7 | 60 |
8%
|
| 3 | Class 8 | 161 |
21.4%
|
| 4 | Form 3 | 146 |
19.4%
|
| 5 | Form 4 | 121 |
16.1%
|
| 6 | Form 5 | 123 |
16.4%
|
| 7 | Form 6 | 106 |
14.1%
|
| Sysmiss | 13 |