| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
17920.04 |
|
2019 |
18153.49 |
|
2018 |
18396.33 |
|
2017 |
18646.73 |
|
2016 |
18901.96 |
|
2015 |
19160.28 |
|
2014 |
19419.68 |
|
2013 |
19681.75 |
|
2012 |
19953.08 |
|
2011 |
20243.65 |
| Surface water produced internally | 566 | billion cubic meters per year (2020) |
| Groundwater produced internally | 64 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | 50 | billion cubic meters per year (2020) |
| Internal renewable water resources | 580 | billion cubic meters per year (2020) |