| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
9.1%
|
| -8 | Refusal (spontaneous) | 1 |
9.1%
|
| 1 | Yes | 2 |
18.2%
|
| 2 | No | 7 |
63.6%
|
| Sysmiss | 391 |