| Year | Value (Population) |
|---|---|
|
2020 |
4711634 |
|
2019 |
4636944 |
|
2018 |
4563318 |
|
2017 |
4490570 |
|
2016 |
4418919 |
|
2015 |
4345360 |
|
2014 |
4272772 |
|
2013 |
4201083 |
|
2012 |
4130176 |
|
2011 |
4060214 |
| Proportion of population served with at least basic water | 1769561 | Population (2020) |
| Proportion of population with unimproved water | 914108 | Population (2020) |
| Proportion of population with surface water | 219842 | Population (2020) |