| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 6 |
4.4%
|
| 2 | B | 41 |
30.1%
|
| 3 | C | 8 |
5.9%
|
| 4 | D* | 81 |
59.6%
|
| Sysmiss | 864 |