| Value | Category | Cases | |
|---|---|---|---|
| 0 | 554 |
79.3%
|
|
| 1 | 103 |
14.7%
|
|
| 2 | 29 |
4.1%
|
|
| 3 | 13 |
1.9%
|
|
| Sysmiss | 871 |