| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
15.17 |
|
2019 |
15.35 |
|
2018 |
15.57 |
|
2017 |
15.81 |
|
2016 |
16.02 |
|
2015 |
16.19 |
|
2014 |
16.28 |
|
2013 |
16.31 |
|
2012 |
16.41 |
|
2011 |
16.77 |
| Surface water produced internally | 0.15 | billion cubic meters per year (2020) |
| Groundwater produced internally | 0.12 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | 0.12 | billion cubic meters per year (2020) |
| Internal renewable water resources | 0.15 | billion cubic meters per year (2020) |