| Year | Value (Population) |
|---|---|
|
2017 |
591622 |
|
2016 |
568672 |
|
2015 |
545734 |
|
2014 |
522966 |
|
2013 |
500541 |
|
2012 |
454976 |
|
2011 |
409386 |
|
2010 |
365909 |
|
2009 |
324687 |
|
2008 |
286597 |
| Proportion of population served with at least basic water | 14459841 | Population (2022) |
| Proportion of population with unimproved water | 377727 | Population (2017) |
| Proportion of population with surface water | 91952 | Population (2017) |