| Year | Value (Population) |
|---|---|
|
2022 |
13538293 |
|
2021 |
13452526 |
|
2020 |
12798989 |
|
2019 |
12318929 |
|
2018 |
12029652 |
|
2017 |
11744468 |
|
2016 |
11459839 |
|
2015 |
11177025 |
|
2014 |
10897903 |
|
2013 |
10620333 |
| Proportion of population served with piped water | 18358234 | Population (2022) |
| Proportion of population with unimproved water | 3127990 | Population (2022) |
| Proportion of population with surface water | 6038302 | Population (2022) |