| Value | Category | Cases | |
|---|---|---|---|
| -999999999 | 2 |
0.2%
|
|
| 1 | Yes | 673 |
57.3%
|
| 2 | No | 476 |
40.5%
|
| 9 | Don't know | 24 |
2%
|
| Sysmiss | 4185 |