| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 28 |
7.5%
|
| 2 | B | 34 |
9.1%
|
| 3 | C | 33 |
8.8%
|
| 4 | D* | 278 |
74.5%
|
| Sysmiss | 627 |