| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 18 |
4.6%
|
| 2 | B* | 271 |
69.8%
|
| 3 | C | 27 |
7%
|
| 4 | D | 72 |
18.6%
|
| Sysmiss | 612 |