| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
498178.72 |
|
2019 |
501429.07 |
|
2018 |
504881.01 |
|
2017 |
508383.85 |
|
2016 |
511730.67 |
|
2015 |
514772.46 |
|
2014 |
517355.76 |
|
2013 |
519580.55 |
|
2012 |
522029.65 |
|
2011 |
525544.56 |
| Surface water produced internally | 166 | billion cubic meters per year (2020) |
| Groundwater produced internally | 24 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | 20 | billion cubic meters per year (2020) |
| Internal renewable water resources | 170 | billion cubic meters per year (2020) |