| Value | Category | Cases | |
|---|---|---|---|
| 0 | 561 |
71%
|
|
| 1 | 159 |
20.1%
|
|
| 2 | 41 |
5.2%
|
|
| 3 | 29 |
3.7%
|
|
| Sysmiss | 905 |