| Value | Category | Cases | |
|---|---|---|---|
| -999999999 | 40 |
4%
|
|
| 1 | Yes | 58 |
5.8%
|
| 2 | No | 898 |
89.4%
|
| 9 | Do not know | 9 |
0.9%
|
| Sysmiss | 73 |