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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Venezuela, RB | 36.9 | 36.9 | 36.9 | 36.9 | 36.9 | 36.9 | 36.9 | 39.0 | 39.0 | 39.0 | 39.0 | 39.0 |
| Chile | 6.8 | 6.8 | 6.8 | 13.6 | 13.9 | 27.0 | 37.6 | 37.8 | 37.8 | 37.9 | 37.9 | 37.9 |
| Bolivia | 21.4 | 25.3 | 30.9 | 30.9 | 30.9 | 30.9 | 30.9 | 30.9 | 30.9 | 30.9 | 30.9 | 30.9 |
| Brazil | 18.9 | 20.4 | 20.4 | 20.7 | 20.7 | 28.6 | 29.2 | 29.2 | 29.3 | 29.3 | 29.5 | 29.4 |
| Panama | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 15.3 | 27.7 | 27.7 | 27.7 | 27.2 |
| Colombia | 18.1 | 18.1 | 9.3 | 9.4 | 12.7 | 15.7 | 15.7 | 17.0 | 17.0 | 16.7 | 16.7 | 26.4 |
| Ecuador | 15.4 | 15.4 | 14.4 | 14.4 | 14.4 | 15.0 | 15.0 | 15.1 | 15.3 | 20.0 | 20.0 | 20.1 |
| Mexico | 6.0 | 6.3 | 6.3 | 19.1 | 19.1 | 18.9 | 18.9 | 18.9 | 18.9 | 19.0 | 19.0 | 19.9 |
| Peru | 19.2 | 19.4 | 19.4 | 13.1 | 13.1 | 13.1 | 13.3 | 13.3 | 13.7 | 16.8 | 16.8 | 16.8 |
| Paraguay | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | 14.9 |
| Argentina | 5.0 | 7.3 | 7.4 | 7.5 | 7.5 | 7.2 | 9.4 | 9.4 | 9.4 | 9.6 | 9.6 | 9.7 |
| Cuba | 4.9 | 4.9 | 4.9 | 7.2 | 7.2 | 7.2 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.9 |
| Uruguay | 1.7 | 1.7 | 1.7 | 2.3 | 2.3 | 2.3 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 |