| Value | Category | Cases | |
|---|---|---|---|
| 0 | Informal | 46853 | 
                                                                 
                                    
                                    61.1%
                                 
                                                             | 
                                                        
                    
| 1 | Formal | 29845 | 
                                                                 
                                    
                                    38.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 193120 |