| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 67 |
18.3%
|
| 2 | B | 47 |
12.8%
|
| 3 | C | 95 |
25.9%
|
| 4 | D* | 158 |
43.1%
|
| Sysmiss | 633 |