| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
18.8%
|
|
| 10 | 2 |
12.5%
|
|
| 20 | 2 |
12.5%
|
|
| 21 | 1 |
6.3%
|
|
| 30 | 5 |
31.3%
|
|
| 45 | 1 |
6.3%
|
|
| 55 | 2 |
12.5%
|
|
| Sysmiss | 344 |