| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Public network | 1046 | 1230 | 
                                                                 
                                    
                                    45.3%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 2 | Porous cesspit | 1466 | 1292 | 
                                                                 
                                    
                                    47.6%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 3 | Tight cesspit | 184 | 174 | 
                                                                 
                                    
                                    6.4%
                                 
                                                             | 
                            
                        
                        
                            
                    
| 4 | Others/specify | 18 | 18 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             |