| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 557 | 
                                                                 
                                    
                                    10.8%
                                 
                                                             | 
                                                        
                    
| 0 | Yes | 2581 | 
                                                                 
                                    
                                    50.2%
                                 
                                                             | 
                                                        
                    
| Missing value | 1999 | 
                                                                 
                                    
                                    38.9%
                                 
                                                             |