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.
| 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Armenia | 23.3 | 23.1 | 23.1 | 23.1 | 23.1 | 23.1 | 24.3 | 24.3 | 24.3 | 24.7 | 24.7 | 38.9 |
| Bulgaria | 35.0 | 31.5 | 32.8 | 28.3 | 28.3 | 28.3 | 32.8 | 33.1 | 33.1 | 33.1 | 33.1 | 35.6 |
| Romania | 18.1 | 22.5 | 22.6 | 22.6 | 24.3 | 24.3 | 24.4 | 24.4 | 24.4 | 24.4 | 24.4 | 24.3 |
| Albania | 7.7 | 1.8 | 2.2 | 13.1 | 13.5 | 13.5 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 18.0 |
| Ukraine | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 4.2 | 12.3 | 12.3 | 12.3 | 17.7 |
| Georgia | 6.1 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 7.2 | 7.2 | 7.2 | 8.5 | 8.5 | 17.4 |
| Serbia | 7.4 | 6.7 | 6.7 | 6.6 | 6.6 | 6.6 | 7.6 | 7.6 | 7.6 | 8.1 | 8.1 | 13.4 |
| Azerbaijan | 6.4 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 12.0 |
| Moldova | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 11.4 | 11.4 | 11.4 | 11.5 |
| Greece | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.2 |
| Russian Federation | 8.8 | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 |
| Turkiye | 2.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 5.7 | 5.7 | 5.7 | 5.7 |