| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 27 | 
                                    
                                    96.4%
                                 | 
| 1 | yes | 1 | 
                                    
                                    3.6%
                                 | 
| 8 | don't know | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 184 |