| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6 |
16.7%
|
|
| 1 | 13 |
36.1%
|
|
| 2 | 10 |
27.8%
|
|
| 3 | 6 |
16.7%
|
|
| 4 | 1 |
2.8%
|
|
| Sysmiss | 564 |