| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 16 |
12.1%
|
| 2 | B | 13 |
9.8%
|
| 3 | C | 19 |
14.4%
|
| 4 | D* | 84 |
63.6%
|
| Sysmiss | 868 |