| Value | Category | Cases | |
|---|---|---|---|
| -9 | 1 | 24 |
3.5%
|
| -7 | 2 | 106 |
15.6%
|
| 0 | 3 | 250 |
36.8%
|
| 1 | 4 | 265 |
39%
|
| 2 | 5 | 9 |
1.3%
|
| 3 | 6 | 17 |
2.5%
|
| 4 | 7 | 8 |
1.2%
|
| 5 | 8 | 0 |
0%
|
| Sysmiss | 276 |