| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
451.14 |
|
2019 |
454.35 |
|
2018 |
457.66 |
|
2017 |
461.14 |
|
2016 |
464.89 |
|
2015 |
468.72 |
|
2014 |
472.68 |
|
2013 |
476.84 |
|
2012 |
481.09 |
|
2011 |
485.37 |
| Surface water produced internally | billion cubic meters per year (2018) | |
| Groundwater produced internally | 0.02 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | billion cubic meters per year (2018) | |
| Internal renewable water resources | 0.02 | billion cubic meters per year (2020) |