| Value | Category | Cases | |
|---|---|---|---|
| -2 | 15 |
3.8%
|
|
| -1 | 41 |
10.5%
|
|
| 0 | 298 |
76%
|
|
| 1 | 33 |
8.4%
|
|
| 2 | 5 |
1.3%
|
|
| Sysmiss | 208 |