| Value | Category | Cases | |
|---|---|---|---|
| 0 | 23 |
2.7%
|
|
| 1 | 375 |
44.8%
|
|
| 2 | 401 |
47.9%
|
|
| 3 | 38 |
4.5%
|
|
| Sysmiss | 218 |