| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 36 |
23.1%
|
| 2 | B | 42 |
26.9%
|
| 3 | C | 22 |
14.1%
|
| 4 | D* | 56 |
35.9%
|
| Sysmiss | 844 |