| Value | Category | Cases | |
|---|---|---|---|
| -9 | 6 |
1.9%
|
|
| 1 | 69 |
21.4%
|
|
| 2 | 26 |
8.1%
|
|
| 3 | 221 |
68.6%
|
|
| Sysmiss | 80 |