| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 |
18.2%
|
|
| 10 | 1 |
4.5%
|
|
| 15 | 1 |
4.5%
|
|
| 20 | 1 |
4.5%
|
|
| 30 | 12 |
54.5%
|
|
| 40 | 1 |
4.5%
|
|
| 45 | 2 |
9.1%
|
|
| Sysmiss | 134 |