| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
3365.52 |
|
2019 |
3363.48 |
|
2018 |
3362.11 |
|
2017 |
3361.77 |
|
2016 |
3363 |
|
2015 |
3366.07 |
|
2014 |
3371.39 |
|
2013 |
3378.62 |
|
2012 |
3386.31 |
|
2011 |
3392.46 |
| Surface water produced internally | 31.64 | billion cubic meters per year (2020) |
| Groundwater produced internally | 6.48 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | billion cubic meters per year (2018) | |
| Internal renewable water resources | 38.12 | billion cubic meters per year (2020) |