| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
1035.41 |
|
2019 |
1039.92 |
|
2018 |
1045.1 |
|
2017 |
1050.81 |
|
2016 |
1056.86 |
|
2015 |
1063.08 |
|
2014 |
1069.4 |
|
2013 |
1075.85 |
|
2012 |
1082.51 |
|
2011 |
1089.54 |
| Surface water produced internally | 12 | billion cubic meters per year (2020) |
| Groundwater produced internally | 0.9 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | 0.9 | billion cubic meters per year (2020) |
| Internal renewable water resources | 12 | billion cubic meters per year (2020) |