| Value | Category | Cases | |
|---|---|---|---|
| 1 | A* | 72 |
55.4%
|
| 2 | B | 13 |
10%
|
| 3 | C | 12 |
9.2%
|
| 4 | D | 33 |
25.4%
|
| Sysmiss | 870 |