| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 2508 | 
                                                                 
                                    
                                    46.3%
                                 
                                                             | 
                                                        
                    
| 1 | Yes | 2905 | 
                                                                 
                                    
                                    53.7%
                                 
                                                             | 
                                                        
                    
| 98 | DK | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 88 | NA | 3706 | |
| 99 | Missing | 9 |