| Year | Value (Population) |
|---|---|
|
1983 |
1 |
|
1980 |
1 |
|
1978 |
1 |
|
1976 |
1 |
|
1974 |
1 |
|
1972 |
1 |
|
1970 |
1 |
|
1969 |
1 |
|
1968 |
1 |
|
1967 |
1 |
| Proportion of rural population served with piped water | 2999753 | Population (2016) |
| Proportion of rural population with unimproved water | 97973 | Population (2016) |
| Proportion of rural population with rural population with surface water | 158568 | Population (2016) |