| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
5.6%
|
|
| 10 | 8 |
44.4%
|
|
| 15 | 1 |
5.6%
|
|
| 20 | 5 |
27.8%
|
|
| 30 | 2 |
11.1%
|
|
| 40 | 1 |
5.6%
|
|
| Sysmiss | 382 |