| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.6%
|
| -8 | Refusal (spontaneous) | 1 |
0.6%
|
| -7 | Does not apply | 13 |
7.5%
|
| 1 | Yes | 5 |
2.9%
|
| 2 | No | 154 |
88.5%
|
| Sysmiss | 255 |