| Value | Category | Cases | |
|---|---|---|---|
| 0 | 252 |
18.1%
|
|
| 1 | 96 |
6.9%
|
|
| 2 | 36 |
2.6%
|
|
| 3 | 170 |
12.2%
|
|
| 4 | 842 |
60.3%
|
|
| Sysmiss | 174 |