| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
785.68 |
|
2019 |
795.14 |
|
2018 |
804.91 |
|
2017 |
815.04 |
|
2016 |
825.59 |
|
2015 |
836.61 |
|
2014 |
848.14 |
|
2013 |
860.13 |
|
2012 |
872.39 |
|
2011 |
884.64 |
| Surface water produced internally | 22 | billion cubic meters per year (2020) |
| Groundwater produced internally | 10 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | 3 | billion cubic meters per year (2020) |
| Internal renewable water resources | 29 | billion cubic meters per year (2020) |