| Value | Category | Cases | |
|---|---|---|---|
| -88 | don't know | 1 |
0.4%
|
| -66 | refuse to answer | 1 |
0.4%
|
| 0 | No | 275 |
96.5%
|
| 1 | Yes | 8 |
2.8%
|
| Sysmiss | 215 |