| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refuse to answer | 1 |
0.5%
|
| -998 | Don't know | 1 |
0.5%
|
| 0 | No | 22 |
12%
|
| 1 | Yes | 159 |
86.9%
|
| Sysmiss | 1998 |