| Value | Category | Cases | |
|---|---|---|---|
| 0 | Phnom Penh and urban areas | 53 |
6.6%
|
| 1 | Plain | 275 |
34.3%
|
| 2 | Tonle Sap | 300 |
37.5%
|
| 3 | Coastal | 38 |
4.7%
|
| 4 | Plateau and Mountain | 135 |
16.9%
|