| Value | Category | Cases | |
|---|---|---|---|
| 0 | 20 |
25.3%
|
|
| 1 | 30 |
38%
|
|
| 2 | 21 |
26.6%
|
|
| 3 | 8 |
10.1%
|
|
| Sysmiss | 546 |