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 |
| Costa Rica | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 4.7 | 4.8 | 4.8 | 28.8 | 28.8 | 28.2 |
| 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 |
| Belize | 18.3 | 20.5 | 20.5 | 20.6 | 20.6 | 20.6 | 20.6 | 21.1 | 21.1 | 21.1 | 21.1 | 26.8 |
| 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 |
| United States | 13.5 | 12.0 | 20.1 | 26.3 | 26.6 | 26.3 | 26.3 | 23.9 | 15.9 | 15.9 | 15.9 | 15.8 |
| Dominican Republic | 11.0 | 11.2 | 11.2 | 11.2 | 11.2 | 19.2 | 19.2 | 19.2 | 19.2 | 18.7 | 18.7 | 15.3 |
| 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 |
| Canada | 6.3 | 6.3 | 6.2 | 6.5 | 6.5 | 7.2 | 8.1 | 9.5 | 10.8 | 11.4 | 11.5 | 11.6 |
| Honduras | 7.5 | 12.2 | 12.2 | 12.4 | 12.4 | 10.9 | 10.9 | 11.0 | 11.0 | 11.0 | 11.0 | 11.2 |
| Guatemala | 15.7 | 15.7 | 15.7 | 15.7 | 15.7 | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10.2 |
| Nicaragua | 15.5 | 15.5 | 15.5 | 15.5 | 15.5 | 15.5 | 15.5 | 10.0 | 10.0 | 10.0 | 10.0 | 10.1 |
| 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 |
| Suriname | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.5 | 8.6 |
| Bahamas, The | 0.5 | 0.5 | 1.2 | 1.2 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.6 | 8.3 |
| 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 |
| Guyana | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.1 |
| St. Kitts and Nevis | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.8 |
| Haiti | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.4 | 2.5 | 2.5 | 2.8 | 2.8 | 2.8 | 3.0 |
| 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 |
| El Salvador | 2.1 | 2.1 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
| Trinidad and Tobago | 2.1 | 2.1 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
| Jamaica | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.6 | 1.6 | 1.6 |
| St. Lucia | 0.7 | 0.7 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 1.0 |
| Antigua and Barbuda | 0.1 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 | 0.4 | 0.4 | 0.4 | 0.8 |
| Dominica | 0.6 | 0.6 | 0.6 | 0.7 | 0.7 | 0.7 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| St. Vincent and the Grenadines | 0.2 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Grenada | 0.0 | 0.0 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Barbados | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 |