| Value | Category | Cases | |
|---|---|---|---|
| -2 | 99 |
7%
|
|
| -1 | 236 |
16.6%
|
|
| 0 | 76 |
5.3%
|
|
| 1 | 580 |
40.7%
|
|
| 2 | 433 |
30.4%
|
|
| Sysmiss | 549 |