| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 16 |
11.1%
|
| 2 | B* | 67 |
46.5%
|
| 3 | C | 31 |
21.5%
|
| 4 | D | 30 |
20.8%
|
| Sysmiss | 856 |