| Value | Category | Cases | |
|---|---|---|---|
| 0 | 541 |
68.5%
|
|
| 1 | 170 |
21.5%
|
|
| 2 | 48 |
6.1%
|
|
| 3 | 31 |
3.9%
|
|
| Sysmiss | 905 |