| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 68344 | 
                                                                 
                                    
                                    90.7%
                                 
                                                             | 
                                                        
                    
| 1 | One or more | 6982 | 
                                                                 
                                    
                                    9.3%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 1 |