| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 583 | 
                                                                 
                                    
                                    21.9%
                                 
                                                             | 
                                                        
                    
| 2 | no | 1673 | 
                                                                 
                                    
                                    62.9%
                                 
                                                             | 
                                                        
                    
| 777 | 8 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 999 | Missing | 394 | 
                                                                 
                                    
                                    14.8%
                                 
                                                             |