| Value | Category | Cases | |
|---|---|---|---|
| 0 | 479 |
68.5%
|
|
| 1 | 126 |
18%
|
|
| 2 | 40 |
5.7%
|
|
| 3 | 54 |
7.7%
|
|
| Sysmiss | 871 |