| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 5 |
0.1%
|
| -888 | -888 | 92 |
2.2%
|
| 0 | No | 565 |
13.8%
|
| 1 | Yes | 3434 |
83.8%
|
| Sysmiss | 854 |