| Value | Category | Cases | |
|---|---|---|---|
| 1 | a | 1137 |
26%
|
| 2 | b | 683 |
15.6%
|
| 3 | c | 931 |
21.3%
|
| 4 | d | 935 |
21.4%
|
| 5 | e | 485 |
11.1%
|
| 6 | f | 201 |
4.6%
|
| 11 | .R | 217 | |
| Sysmiss | 28 |