Terrestrial protected areas are those officially documented by national authorities.
| 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Germany | 37.9 | 37.4 | 37.4 | 37.8 | 37.8 | 37.8 | 37.4 | 37.8 | 37.5 | 37.6 | 37.6 | 39.3 |
| Japan | 16.4 | 19.4 | 19.4 | 29.4 | 29.4 | 29.4 | 29.4 | 29.4 | 29.7 | 29.7 | 29.7 | 29.5 |
| France | 25.4 | 25.6 | 25.6 | 25.8 | 26.0 | 25.8 | 26.3 | 27.3 | 28.0 | 28.4 | 28.4 | 28.6 |
| United Kingdom | 28.0 | 28.8 | 28.7 | 28.2 | 28.7 | 28.7 | 28.7 | 28.7 | 27.8 | 27.8 | 27.8 | 28.4 |
| Italy | 21.4 | 21.5 | 21.5 | 21.5 | 21.5 | 21.5 | 21.5 | 21.5 | 21.5 | 21.6 | 21.6 | 21.6 |
| Canada | 9.4 | 9.4 | 9.3 | 9.7 | 9.7 | 9.6 | 11.0 | 9.9 | 11.9 | 12.7 | 12.8 | 12.9 |
| United States | 13.6 | 13.1 | 13.1 | 13.0 | 13.5 | 13.0 | 13.0 | 11.8 | 13.0 | 13.0 | 12.9 | 12.9 |