| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 6 |
0.1%
|
| -888 | -888 | 61 |
1.5%
|
| 0 | No | 831 |
20.3%
|
| 1 | Yes | 3198 |
78.1%
|
| Sysmiss | 854 |