| Value | Category | Cases | |
|---|---|---|---|
| 1 | Class 7 | 900 |
19.1%
|
| 2 | Class 8 | 1109 |
23.6%
|
| 3 | Class 9 | 858 |
18.2%
|
| 4 | Class 10 | 988 |
21%
|
| 5 | Class 11 | 848 |
18%
|
| Sysmiss | 9 |