| Value | Category | Cases | |
|---|---|---|---|
| -99 | -99 (Don't know) | 12 |
7.7%
|
| -66 | -66 (refuse to answer) | 0 |
0%
|
| 0 | No | 124 |
80%
|
| 1 | Yes | 19 |
12.3%
|
| Sysmiss | 1224 |