| Value | Category | Cases | |
|---|---|---|---|
| 0 | 15 |
71.4%
|
|
| 1 | 3 |
14.3%
|
|
| 2 | 2 |
9.5%
|
|
| 3 | 1 |
4.8%
|
|
| Sysmiss | 18 |