| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (Don't know) | 10 |
7.2%
|
| -66 | -66 (refuse to answer) | 2 |
1.4%
|
| 0 | No | 69 |
49.6%
|
| 1 | Yes | 58 |
41.7%
|
| Sysmiss | 1240 |