| Year | Value (Population) |
|---|---|
|
2021 |
552056 |
|
2020 |
545081 |
|
2019 |
538076 |
|
2018 |
530994 |
|
2017 |
523745 |
|
2016 |
557678 |
|
2015 |
590611 |
|
2014 |
622543 |
|
2013 |
653467 |
|
2012 |
683294 |
| Proportion of population served with at least basic water | 1627944 | Population (2021) |
| Proportion of population served with piped water | 3237166 | Population (2021) |
| Proportion of population with surface water | 356441 | Population (2021) |