| Value | Category | Cases | |
|---|---|---|---|
| -2 | 10 |
2.6%
|
|
| -1 | 55 |
14.1%
|
|
| 0 | 266 |
68%
|
|
| 1 | 42 |
10.7%
|
|
| 2 | 18 |
4.6%
|
|
| Sysmiss | 209 |