| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 555 | 
                                                                 
                                    
                                    44.6%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 485 | 
                                                                 
                                    
                                    39%
                                 
                                                             | 
                                                        
                    
| 98 | Don't know | 205 | 
                                                                 
                                    
                                    16.5%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2890 |