| Value | Category | Cases | |
|---|---|---|---|
| 0 | 58 |
7.2%
|
|
| 1 | 47 |
5.8%
|
|
| 2 | 45 |
5.6%
|
|
| 3 | 222 |
27.5%
|
|
| 4 | 434 |
53.8%
|
|
| Sysmiss | 889 |