| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused to answer | 0 |
0%
|
| -88 | Don't know | 0 |
0%
|
| 0 | No | 15 |
71.4%
|
| 1 | Yes | 6 |
28.6%
|
| Sysmiss | 138 |