| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6 |
11.3%
|
|
| 2 | 27 |
50.9%
|
|
| 4 | 4 |
7.5%
|
|
| 6 | 16 |
30.2%
|
|
| Sysmiss | 8522 |