| Year | Value (Population) |
|---|---|
|
2021 |
1169850 |
|
2020 |
1157795 |
|
2019 |
1145091 |
|
2018 |
1132755 |
|
2017 |
1119812 |
|
2016 |
1362235 |
|
2015 |
1595222 |
|
2014 |
1819130 |
|
2013 |
2033736 |
|
2012 |
2238880 |
| Proportion of population served with piped water | 16113733 | Population (2021) |
| Proportion of population with unimproved water | 487002 | Population (2021) |
| Proportion of population with surface water | 14853 | Population (2021) |