| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (don't know) | 0 |
0%
|
| -66 | -66 (refuse to answer) | 0 |
0%
|
| 0 | No | 612 |
95.3%
|
| 1 | Yes | 30 |
4.7%
|
| Sysmiss | 474 |