| Year | Value (Population) |
|---|---|
|
2022 |
31307047 |
|
2021 |
30693589 |
|
2020 |
30015067 |
|
2019 |
29280365 |
|
2018 |
28428215 |
|
2017 |
27605454 |
|
2016 |
26900967 |
|
2015 |
26247580 |
|
2014 |
25653286 |
|
2013 |
25099610 |
| Proportion of population served with at least basic water | 14580237 | Population (2022) |
| Proportion of population with unimproved water | 1109603 | Population (2022) |
| Proportion of population with surface water | 459635 | Population (2022) |