| Value | Category | Cases | |
|---|---|---|---|
| 0 | 12 |
1.7%
|
|
| 1 | 10 |
1.4%
|
|
| 2 | 20 |
2.9%
|
|
| 3 | 208 |
29.8%
|
|
| 4 | 447 |
64.1%
|
|
| Sysmiss | 873 |