| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -8 | Refusal (spontaneous) | 4 |
2.3%
|
| -7 | Does not apply | 3 |
1.7%
|
| 1 | Yes | 4 |
2.3%
|
| 2 | No | 165 |
93.8%
|
| Sysmiss | 584 |