| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
9.1%
|
| -8 | Refusal (spontaneous) | 4 |
6.1%
|
| -7 | Does not apply | 3 |
4.5%
|
| 1 | Yes | 6 |
9.1%
|
| 2 | No | 47 |
71.2%
|
| Sysmiss | 286 |