| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
19294.21 |
|
2019 |
19521.33 |
|
2018 |
19760.5 |
|
2017 |
20012.51 |
|
2016 |
20278.03 |
|
2015 |
20557.82 |
|
2014 |
20850.62 |
|
2013 |
21156.82 |
|
2012 |
21481.01 |
|
2011 |
21829.8 |
| Surface water produced internally | 440 | billion cubic meters per year (2020) |
| Groundwater produced internally | 72 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | 20 | billion cubic meters per year (2020) |
| Internal renewable water resources | 492 | billion cubic meters per year (2020) |