| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18 |
40.9%
|
|
| 1 | 9 |
20.5%
|
|
| 2 | 12 |
27.3%
|
|
| 3 | 5 |
11.4%
|
|
| Sysmiss | 562 |