| Value | Category | Cases | |
|---|---|---|---|
| -88 | don't know | 0 |
0%
|
| -66 | refuse to answer | 2 |
0.4%
|
| 0 | No | 477 |
97.7%
|
| 1 | Yes | 9 |
1.8%
|
| Sysmiss | 12 |