| Value | Category | Cases | |
|---|---|---|---|
| 0 | 506 |
72.4%
|
|
| 1 | 129 |
18.5%
|
|
| 2 | 50 |
7.2%
|
|
| 3 | 14 |
2%
|
|
| Sysmiss | 871 |