| Value | Category | Cases | |
|---|---|---|---|
| 0 | Phnom Penh and urban areas | 103 | 
                                    
                                    8.1%
                                 | 
| 1 | Plain | 387 | 
                                    
                                    30.3%
                                 | 
| 2 | Tonle Sap | 387 | 
                                    
                                    30.3%
                                 | 
| 3 | Coastal | 89 | 
                                    
                                    7%
                                 | 
| 4 | Plateau and Mountain | 311 | 
                                    
                                    24.4%
                                 |