| Value | Category | Cases | |
|---|---|---|---|
| 0 | 25 |
3.6%
|
|
| 1 | 11 |
1.6%
|
|
| 2 | 6 |
0.9%
|
|
| 3 | 209 |
30%
|
|
| 4 | 446 |
64%
|
|
| Sysmiss | 873 |