| Value | Category | Cases | |
|---|---|---|---|
| 0 | 646 |
74.1%
|
|
| 1 | 194 |
22.2%
|
|
| 2 | 27 |
3.1%
|
|
| 3 | 5 |
0.6%
|
|
| Sysmiss | 649 |