| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | No | 947 |
78.9%
|
| 1 | Yes | 209 |
17.4%
|
| 8 | Refused | 20 |
1.7%
|
| 9 | Don't know | 23 |
1.9%
|