| Value | Category | Cases | |
|---|---|---|---|
| 0 | 104 |
7.4%
|
|
| 1 | 31 |
2.2%
|
|
| 2 | 27 |
1.9%
|
|
| 3 | 255 |
18.3%
|
|
| 4 | 979 |
70.1%
|
|
| Sysmiss | 174 |