| Year | Value (Population) |
|---|---|
|
2022 |
32414220 |
|
2021 |
32038163 |
|
2020 |
31646855 |
|
2019 |
31234603 |
|
2018 |
30814125 |
|
2017 |
30376044 |
|
2016 |
29913623 |
|
2015 |
29443687 |
|
2014 |
28970063 |
|
2013 |
28488445 |
| Proportion of population served with at least basic water | 1090957 | Population (2022) |
| Proportion of population with unimproved water | 845674 | Population (2022) |
| Proportion of population with surface water | 196683 | Population (2007) |