| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 12 | 
                                                                 
                                    
                                    16.9%
                                 
                                                             | 
                                                        
                    
| 1 | yes | 55 | 
                                                                 
                                    
                                    77.5%
                                 
                                                             | 
                                                        
                    
| 2 | no vaccination in last 2 years | 2 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    
| 8 | don't know | 2 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 6684 |