| Year | Value (Population) |
|---|---|
|
2022 |
4739831 |
|
2021 |
4565459 |
|
2020 |
4393090 |
|
2019 |
4223383 |
|
2018 |
4057439 |
|
2017 |
3895362 |
|
2016 |
3736266 |
|
2015 |
3582316 |
|
2014 |
3433549 |
|
2013 |
3286628 |
| Proportion of population served with piped water | 1780069 | Population (2022) |
| Proportion of population with unimproved water | 1439261 | Population (2022) |
| Proportion of population with surface water | 903660 | Population (2022) |