| Value | Category | Cases | |
|---|---|---|---|
| 1 | A* | 111 |
30.4%
|
| 2 | B | 152 |
41.6%
|
| 3 | C | 26 |
7.1%
|
| 4 | D | 76 |
20.8%
|
| Sysmiss | 635 |