| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 21 |
15.9%
|
| 2 | B | 17 |
12.9%
|
| 3 | C | 26 |
19.7%
|
| 4 | D* | 68 |
51.5%
|
| Sysmiss | 868 |