| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 11 |
0.3%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 21 |
0.5%
|
| 0 | no | 220 |
5.3%
|
| 1 | yes | 3869 |
93.9%
|