| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 1905 |
64.1%
|
| 0.5 | 0.5 | 759 |
25.5%
|
| 1 | 1 | 308 |
10.4%
|
| -99 | -99 | 0 | |
| Sysmiss | 28 |