| Value | Category | Cases | |
|---|---|---|---|
| 1 | A* | 74 |
56.1%
|
| 2 | B | 13 |
9.8%
|
| 3 | C | 8 |
6.1%
|
| 4 | D | 37 |
28%
|
| Sysmiss | 868 |