| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 10 |
0.2%
|
| -888 | -888 | 326 |
7.3%
|
| 0 | No | 357 |
8%
|
| 1 | Yes | 3747 |
84.4%
|
| Sysmiss | 510 |