| Value | Category | Cases | |
|---|---|---|---|
| -3 | 3 |
0.5%
|
|
| -2 | 11 |
1.7%
|
|
| -1 | 47 |
7.3%
|
|
| 0 | 453 |
69.9%
|
|
| 1 | 95 |
14.7%
|
|
| 2 | 19 |
2.9%
|
|
| 3 | 17 |
2.6%
|
|
| 4 | 3 |
0.5%
|
|
| Sysmiss | 105 |