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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Botswana | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 |
| Namibia | 26.9 | 23.2 | 23.2 | 23.2 | 23.3 | 23.2 | 23.2 | 23.2 | 23.2 | 23.2 | 24.5 | 24.4 |
| Lesotho | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.5 | 0.5 | 0.5 | 21.3 | 23.4 |
| South Africa | 9.8 | 10.6 | 11.7 | 13.0 | 13.0 | 10.3 | 11.8 | 12.4 | 12.5 | 12.7 | 12.7 | 12.8 |
| Eswatini | 3.0 | 4.0 | 4.0 | 4.1 | 4.1 | 4.2 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.2 |