| Value | Category | Cases | |
|---|---|---|---|
| 1 | No treatment | 34022 | 
                                    
                                    76.8%
                                 | 
| 2 | Boiling | 9870 | 
                                    
                                    22.3%
                                 | 
| 3 | Purifier | 35 | 
                                    
                                    0.1%
                                 | 
| 4 | SODIS technology | 35 | 
                                    
                                    0.1%
                                 | 
| 5 | Filtering | 343 | 
                                    
                                    0.8%
                                 |