| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 23 |
16%
|
| 2 | B | 21 |
14.6%
|
| 3 | C | 37 |
25.7%
|
| 4 | D* | 63 |
43.8%
|
| Sysmiss | 856 |