| Value | Category | Cases | |
|---|---|---|---|
| 1 | A* | 72 |
56.3%
|
| 2 | B | 19 |
14.8%
|
| 3 | C | 14 |
10.9%
|
| 4 | D | 23 |
18%
|
| Sysmiss | 872 |