| Value | Category | Cases | |
|---|---|---|---|
| -9 | 20 |
14.5%
|
|
| 0 | 81 |
58.7%
|
|
| 1 | 8 |
5.8%
|
|
| 2 | 4 |
2.9%
|
|
| 3 | 1 |
0.7%
|
|
| 4 | 1 |
0.7%
|
|
| 5 | 12 |
8.7%
|
|
| 10 | 4 |
2.9%
|
|
| 15 | 4 |
2.9%
|
|
| 20 | 2 |
1.4%
|
|
| 30 | 1 |
0.7%
|
|
| Sysmiss | 77 |