| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 666 | 
                                                                 
                                    
                                    25%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 1868 | 
                                                                 
                                    
                                    70.1%
                                 
                                                             | 
                                                        
                    
| 2 | no vaccination in last 2 years | 59 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    
| 8 | don't know | 71 | 
                                                                 
                                    
                                    2.7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 4091 |