| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 3 |
1.3%
|
| -888 | -888 | 35 |
15%
|
| 0 | No | 9 |
3.9%
|
| 1 | Yes | 186 |
79.8%
|
| Sysmiss | 4717 |