| Value | Category | Cases | |
|---|---|---|---|
| -9 | 1 | 9 |
1.6%
|
| -7 | 2 | 119 |
20.5%
|
| 0 | 3 | 387 |
66.7%
|
| 1 | 4 | 31 |
5.3%
|
| 2 | 5 | 19 |
3.3%
|
| 3 | 6 | 14 |
2.4%
|
| 4 | 7 | 1 |
0.2%
|
| 5 | 8 | 0 |
0%
|
| Sysmiss | 1 |