| Value | Category | Cases | |
|---|---|---|---|
| 29 | 11 |
4.6%
|
|
| 30 | 44 |
18.6%
|
|
| 31 | 41 |
17.3%
|
|
| 32 | 70 |
29.5%
|
|
| 33 | 37 |
15.6%
|
|
| 34 | 34 |
14.3%
|
|
| Sysmiss | 74 |