| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 4594 | 
                                                                 
                                    
                                    56.6%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 3483 | 
                                                                 
                                    
                                    42.9%
                                 
                                                             | 
                                                        
                    
| 98 | DK | 39 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    
| 88 | NA | 877 | |
| 99 | Missing | 135 |