| Value | Category | Cases | |
|---|---|---|---|
| 0 | 24 |
3.4%
|
|
| 1 | 32 |
4.6%
|
|
| 2 | 29 |
4.2%
|
|
| 3 | 270 |
38.7%
|
|
| 4 | 342 |
49.1%
|
|
| Sysmiss | 873 |