| Value | Category | Cases | |
|---|---|---|---|
| 1 | A* | 77 |
58.3%
|
| 2 | B | 15 |
11.4%
|
| 3 | C | 19 |
14.4%
|
| 4 | D | 21 |
15.9%
|
| Sysmiss | 868 |