| Value | Category | Cases | |
|---|---|---|---|
| -3 | 3 |
0.8%
|
|
| -2 | 10 |
2.5%
|
|
| -1 | 77 |
19.3%
|
|
| 0 | 211 |
53%
|
|
| 1 | 66 |
16.6%
|
|
| 2 | 25 |
6.3%
|
|
| 3 | 6 |
1.5%
|
|
| Sysmiss | 202 |