| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 6 |
25%
|
| 1 | Yes | 18 |
75%
|
| d | Don't know | 0 |
0%
|
| o | Other | 0 |
0%
|
| r | Refused to answer | 0 |
0%
|
| Sysmiss | 28 |