| Value | Category | Cases | |
|---|---|---|---|
| 0 | Phnom Penh and urban areas | 87 | 
                                    
                                    6.6%
                                 | 
| 1 | Plain | 449 | 
                                    
                                    34.3%
                                 | 
| 2 | Tonle Sap | 456 | 
                                    
                                    34.8%
                                 | 
| 3 | Coastal | 65 | 
                                    
                                    5%
                                 | 
| 4 | Plateau and Mountain | 252 | 
                                    
                                    19.3%
                                 |