| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 13 |
9.1%
|
| 2 | B* | 107 |
74.8%
|
| 3 | C | 8 |
5.6%
|
| 4 | D | 15 |
10.5%
|
| Sysmiss | 857 |