| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 9 |
0.8%
|
| 0 | No | 980 |
81.7%
|
| 1 | Yes | 150 |
12.5%
|
| 8 | Refused | 10 |
0.8%
|
| 9 | Don't know | 51 |
4.3%
|