| Value | Category | Cases | |
|---|---|---|---|
| 1 | Surface water | 44 |
3.5%
|
| 2 | Rainwater | 256 |
20.6%
|
| 3 | Unimproved spring water | 164 |
13.2%
|
| 4 | Improved spring water | 263 |
21.2%
|
| 5 | Public tap water | 394 |
31.8%
|
| 6 | Private tap water | 101 |
8.1%
|
| 96 | Other | 7 |
0.6%
|
| Sysmiss | 11 |
0.9%
|