| Value | Category | Cases | |
|---|---|---|---|
| -1 | 870 |
10.5%
|
|
| 0 | 5754 |
69.4%
|
|
| 1 | 1185 |
14.3%
|
|
| 2 | 313 |
3.8%
|
|
| 3 | 122 |
1.5%
|
|
| 5 | 51 |
0.6%
|
|
| Sysmiss | 515 |