| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 16 |
11.3%
|
| 2 | B | 37 |
26.2%
|
| 3 | C | 32 |
22.7%
|
| 4 | D* | 56 |
39.7%
|
| Sysmiss | 859 |