| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.1%
|
| 0 | No | 2233 |
93.1%
|
| 1 | Yes | 105 |
4.4%
|
| 9 | Don't know | 58 |
2.4%
|
| 998 | Refused | 0 |
0%
|