| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -8 | Refusal (spontaneous) | 1 |
0.5%
|
| 1 | Yes | 5 |
2.3%
|
| 2 | No | 212 |
97.2%
|
| Sysmiss | 2479 |