| Value | Category | Cases | |
|---|---|---|---|
| 1 | A | 18 |
15.1%
|
| 2 | B* | 58 |
48.7%
|
| 3 | C | 15 |
12.6%
|
| 4 | D | 28 |
23.5%
|
| Sysmiss | 881 |