| Value | Category | Cases | |
|---|---|---|---|
| 0 | 17 |
31.5%
|
|
| 15 | 1 |
1.9%
|
|
| 25 | 3 |
5.6%
|
|
| 30 | 33 |
61.1%
|
|
| Sysmiss | 419 |