| Value | Category | Cases | |
|---|---|---|---|
| -2 | 6 |
1.5%
|
|
| -1 | 42 |
10.7%
|
|
| 0 | 271 |
69%
|
|
| 1 | 65 |
16.5%
|
|
| 2 | 9 |
2.3%
|
|
| Sysmiss | 207 |