| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 993 | 
                                                                 
                                    
                                    34.8%
                                 
                                                             | 
                                                        
                    
| 1 | vacc. date on card | 1460 | 
                                                                 
                                    
                                    51.1%
                                 
                                                             | 
                                                        
                    
| 2 | reported by mother | 301 | 
                                                                 
                                    
                                    10.5%
                                 
                                                             | 
                                                        
                    
| 3 | vacc. marked on card | 91 | 
                                                                 
                                    
                                    3.2%
                                 
                                                             | 
                                                        
                    
| 8 | dk | 10 | 
                                                                 
                                    
                                    0.4%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 3900 |