| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 11 |
0.3%
|
| -8 | does not apply | 0 |
0%
|
| -7 | refused to answer | 0 |
0%
|
| 0 | no | 1659 |
40.3%
|
| 1 | yes | 2451 |
59.5%
|