| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
232.96 |
|
2019 |
236.45 |
|
2018 |
240.13 |
|
2017 |
244.02 |
|
2016 |
248.13 |
|
2015 |
252.46 |
|
2014 |
257.03 |
|
2013 |
261.82 |
|
2012 |
266.71 |
|
2011 |
271.55 |
| Surface water produced internally | 1 | billion cubic meters per year (2020) |
| Groundwater produced internally | 0.41 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | billion cubic meters per year (2018) | |
| Internal renewable water resources | 1.41 | billion cubic meters per year (2020) |