| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
22.2%
|
|
| 10 | 1 |
11.1%
|
|
| 15 | 1 |
11.1%
|
|
| 20 | 1 |
11.1%
|
|
| 30 | 3 |
33.3%
|
|
| 50 | 1 |
11.1%
|
|
| Sysmiss | 342 |