| Value | Category | Cases | |
|---|---|---|---|
| 1 | A* | 88 |
23%
|
| 2 | B | 257 |
67.1%
|
| 3 | C | 21 |
5.5%
|
| 4 | D | 17 |
4.4%
|
| Sysmiss | 617 |