United Nations Environmental Program and the World Conservation Monitoring Centre, as compiled by the World Resources Institute, based on data from national authorities, national legislation and international agreements.
| तिथि | मान | बदले , % |
|---|---|---|
| 2024 | 22.3 | 0.90% |
| 2023 | 22.1 | 0.00% |
| 2022 | 22.1 | 0.00% |
| 2021 | 22.1 | 0.00% |
| 2020 | 22.1 | 1.38% |
| 2019 | 21.8 | 0.00% |
| 2018 | 21.8 | 0.00% |
| 2017 | 21.8 | 0.00% |
| 2016 | 21.8 | 0.00% |
| 2015 | 21.8 | 0.00% |
| 2014 | 21.8 | -0.46% |
| 2013 | 21.9 |