| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 34 | 
                                    
                                    14.9%
                                 | 
| 2 | No | 161 | 
                                    
                                    70.6%
                                 | 
| 3 | Don't know | 33 | 
                                    
                                    14.5%
                                 | 
| Sysmiss | 637 |