| Value | Category | Cases | |
|---|---|---|---|
| 1 | a | 877 |
20%
|
| 2 | b | 1323 |
30.1%
|
| 3 | c | 518 |
11.8%
|
| 4 | d | 431 |
9.8%
|
| 5 | e | 951 |
21.7%
|
| 6 | f | 291 |
6.6%
|
| 11 | .R | 198 | |
| Sysmiss | 28 |