| Value | Category | Cases | |
|---|---|---|---|
| 1 | 20 |
13.8%
|
|
| 2 | 35 |
24.1%
|
|
| 3 | 39 |
26.9%
|
|
| 4 | 51 |
35.2%
|
|
| Sysmiss | 13 |