| Value | Category | Cases | |
|---|---|---|---|
| 0 | 12 |
30%
|
|
| 1 | 15 |
37.5%
|
|
| 2 | 8 |
20%
|
|
| 4 | 1 |
2.5%
|
|
| 6 | 2 |
5%
|
|
| 25 | 1 |
2.5%
|
|
| 28 | 1 |
2.5%
|
|
| Sysmiss | 10 |