| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 15 |
11.4%
|
| 2 | B | 31 |
23.5%
|
| 3 | C | 15 |
11.4%
|
| 4 | D* | 71 |
53.8%
|
| Sysmiss | 868 |