| Value | Category | Cases | |
|---|---|---|---|
| -9 | 1 |
3.3%
|
|
| 0 | 12 |
40%
|
|
| 1 | 6 |
20%
|
|
| 2 | 4 |
13.3%
|
|
| 5 | 3 |
10%
|
|
| 8 | 1 |
3.3%
|
|
| 10 | 1 |
3.3%
|
|
| 18 | 1 |
3.3%
|
|
| 24 | 1 |
3.3%
|
|
| Sysmiss | 121 |