| Year | Value (Population) |
|---|---|
|
2022 |
54371629 |
|
2021 |
51456918 |
|
2020 |
48614682 |
|
2019 |
45853313 |
|
2018 |
43194639 |
|
2017 |
40629863 |
|
2016 |
38145631 |
|
2015 |
35759613 |
|
2014 |
33474912 |
|
2013 |
31277055 |
| Proportion of population served with at least basic water | 47223743 | Population (2022) |
| Proportion of population with unimproved water | 19783540 | Population (2022) |
| Proportion of population with surface water | 5493850 | Population (2022) |