| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (don't know) | 3 |
0.4%
|
| -66 | -66 (refuse to answer) | 2 |
0.3%
|
| 0 | No | 517 |
73%
|
| 1 | Yes | 186 |
26.3%
|
| Sysmiss | 408 |