| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999. Don't Know | 7 |
0.2%
|
| 0 | 0. No | 1268 |
39.3%
|
| 1 | 1. Yes | 1934 |
60%
|
| d | 2 |
0.1%
|
|
| s | 13 |
0.4%
|