| Value | Category | Cases | |
|---|---|---|---|
| 0 | Phnom Penh and urban areas | 92 | 
                                    
                                    8.7%
                                 | 
| 1 | Plain | 294 | 
                                    
                                    27.9%
                                 | 
| 2 | Tonle Sap | 288 | 
                                    
                                    27.3%
                                 | 
| 3 | Coastal | 97 | 
                                    
                                    9.2%
                                 | 
| 4 | Plateau and Mountain | 284 | 
                                    
                                    26.9%
                                 |