| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 31866 | 
                                                                 
                                    
                                    41.3%
                                 
                                                             | 
                                                        
                    
| 1 | One or more | 45336 | 
                                                                 
                                    
                                    58.7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 13 |