| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 1312 | 
                                    
                                    35.1%
                                 | 
| 1 | vacc. date on card | 1820 | 
                                    
                                    48.6%
                                 | 
| 2 | reported by mother | 466 | 
                                    
                                    12.4%
                                 | 
| 3 | vacc. marked on card | 131 | 
                                    
                                    3.5%
                                 | 
| 8 | dk | 14 | 
                                    
                                    0.4%
                                 | 
| Sysmiss | 11203 |