| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 12 |
0.3%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 25 |
0.6%
|
| 0 | no | 267 |
6.5%
|
| 1 | yes | 3817 |
92.6%
|