| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
1072.09 |
|
2019 |
1099.7 |
|
2018 |
1128.27 |
|
2017 |
1157.84 |
|
2016 |
1188.43 |
|
2015 |
1220.07 |
|
2014 |
1252.8 |
|
2013 |
1286.64 |
|
2012 |
1321.54 |
|
2011 |
1357.45 |
| Surface water produced internally | 214 | billion cubic meters per year (2020) |
| Groundwater produced internally | 87 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | 80 | billion cubic meters per year (2020) |
| Internal renewable water resources | 221 | billion cubic meters per year (2020) |