| Value | Category | Cases | |
|---|---|---|---|
| 0 | 161 |
40.4%
|
|
| 30 | 131 |
32.8%
|
|
| 40 | 64 |
16%
|
|
| 50 | 43 |
10.8%
|
|
| Sysmiss | 1 |