| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
2%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| 1 | Yes | 2 |
3.9%
|
| 2 | No | 48 |
94.1%
|
| Sysmiss | 307 |