| Value | Category | Cases | |
|---|---|---|---|
| -88 | don't know | 1 |
0.2%
|
| -66 | refuse to answer | 2 |
0.4%
|
| 0 | No | 381 |
78.9%
|
| 1 | Yes | 99 |
20.5%
|
| Sysmiss | 17 |