| Value | Category | Cases | |
|---|---|---|---|
| 1 | 8 | 304 |
20.8%
|
| 2 | 9 | 629 |
43%
|
| 3 | 10 | 357 |
24.4%
|
| 4 | 11 | 173 |
11.8%
|
| Sysmiss | 110 |