| Year | Value (Population) |
|---|---|
|
2022 |
39446966 |
|
2021 |
39045236 |
|
2020 |
38598269 |
|
2019 |
38110645 |
|
2018 |
37497971 |
|
2017 |
36680368 |
|
2016 |
36157857 |
|
2015 |
35621729 |
|
2014 |
35074285 |
|
2013 |
34519146 |
| Proportion of population served with piped water | 51505507 | Population (2022) |
| Proportion of population with unimproved water | 2006138 | Population (2022) |
| Proportion of population with surface water | 19638 | Population (2019) |