| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 20 |
15.4%
|
| 2 | B | 37 |
28.5%
|
| 3 | C | 48 |
36.9%
|
| 4 | D* | 25 |
19.2%
|
| Sysmiss | 870 |