| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.3%
|
| 1 | Yes | 255 |
23.1%
|
| 2 | No | 841 |
76.2%
|
| 9 | Don't know | 5 |
0.5%
|
| 998 | Refused | 0 |
0%
|