| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 40 |
5.3%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 0 |
0%
|
| 0 | no | 453 |
59.9%
|
| 1 | yes | 263 |
34.8%
|