| Value | Category | Cases | |
|---|---|---|---|
| 1 | Class 1 | 27 |
1.9%
|
| 2 | Class 2 | 440 |
30.2%
|
| 3 | Class 3 | 404 |
27.8%
|
| 4 | Class 4 | 584 |
40.1%
|
| Sysmiss | 6 |