| Value | Category | Cases | |
|---|---|---|---|
| 1 | Class 7 | 394 |
18%
|
| 2 | Class 8 | 556 |
25.3%
|
| 3 | Class 9 | 597 |
27.2%
|
| 4 | Class 10 | 599 |
27.3%
|
| 5 | Class 11 | 48 |
2.2%
|
| Sysmiss | 14 |