| Value | Category | Cases | |
|---|---|---|---|
| -9 | 3 |
1.5%
|
|
| 0 | 2 |
1%
|
|
| 1 | 45 |
22.8%
|
|
| 2 | 25 |
12.7%
|
|
| 3 | 122 |
61.9%
|
|
| Sysmiss | 2 |