| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
19311.57 |
|
2019 |
19341.46 |
|
2018 |
19375.02 |
|
2017 |
19414.41 |
|
2016 |
19462.64 |
|
2015 |
19521.55 |
|
2014 |
19592.01 |
|
2013 |
19672.8 |
|
2012 |
19760.77 |
|
2011 |
19851.44 |
| Surface water produced internally | 106.8 | billion cubic meters per year (2020) |
| Groundwater produced internally | 2.2 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | 2 | billion cubic meters per year (2020) |
| Internal renewable water resources | 107 | billion cubic meters per year (2020) |