| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 28 |
0.1%
|
| 0 | No | 39477 |
76.5%
|
| 1 | Yes | 11865 |
23%
|
| 9 | Don't know | 217 |
0.4%
|
| 998 | Refused | 0 |
0%
|