| Value | Category | Cases | |
|---|---|---|---|
| 1 | A* | 51 |
36.4%
|
| 2 | B | 41 |
29.3%
|
| 3 | C | 23 |
16.4%
|
| 4 | D | 25 |
17.9%
|
| Sysmiss | 860 |