| Value | Category | Cases | |
|---|---|---|---|
| 0 | 31 |
81.6%
|
|
| 1 | 4 |
10.5%
|
|
| 2 | 2 |
5.3%
|
|
| 4 | 1 |
2.6%
|
|
| Sysmiss | 1 |