| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 21 |
15.3%
|
| 2 | B | 6 |
4.4%
|
| 3 | C | 12 |
8.8%
|
| 4 | D* | 98 |
71.5%
|
| Sysmiss | 863 |