| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 |
26.7%
|
|
| 10 | 1 |
6.7%
|
|
| 20 | 6 |
40%
|
|
| 30 | 3 |
20%
|
|
| 50 | 1 |
6.7%
|
|
| Sysmiss | 738 |