| Value | Category | Cases | |
|---|---|---|---|
| -9 | 11 |
19.3%
|
|
| 0 | 36 |
63.2%
|
|
| 1 | 3 |
5.3%
|
|
| 2 | 1 |
1.8%
|
|
| 3 | 1 |
1.8%
|
|
| 5 | 3 |
5.3%
|
|
| 10 | 1 |
1.8%
|
|
| 15 | 1 |
1.8%
|
|
| Sysmiss | 158 |