| Value | Category | Cases | |
|---|---|---|---|
| 0 | 543 |
77.7%
|
|
| 1 | 114 |
16.3%
|
|
| 2 | 24 |
3.4%
|
|
| 3 | 18 |
2.6%
|
|
| Sysmiss | 871 |