| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 108 |
15.4%
|
| 1 | 1 | 259 |
36.9%
|
| 2 | 2 | 204 |
29.1%
|
| 3 | 3 | 97 |
13.8%
|
| 4 | 4 | 34 |
4.8%
|
| Sysmiss | 2939 |