| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 617 | 
                                                                 
                                    
                                    21.6%
                                 
                                                             | 
                                                        
                    
| 1 | vacc. date on card | 1590 | 
                                                                 
                                    
                                    55.5%
                                 
                                                             | 
                                                        
                    
| 2 | reported by mother | 552 | 
                                                                 
                                    
                                    19.3%
                                 
                                                             | 
                                                        
                    
| 3 | vacc. marked on card | 83 | 
                                                                 
                                    
                                    2.9%
                                 
                                                             | 
                                                        
                    
| 8 | dk | 21 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3892 |