| Value | Category | Cases | |
|---|---|---|---|
| 1 | River/pound (natural flow) | 84813 |
52.8%
|
| 2 | River/pound (pumping) | 11157 |
6.9%
|
| 3 | Dam/reservoir | 18540 |
11.5%
|
| 4 | Tubewell/boaring | 34081 |
21.2%
|
| 5 | Others | 9805 |
6.1%
|
| 6 | Mixed | 2350 |
1.5%
|
| Sysmiss | 263946 |