Water productivity is calculated as GDP in constant prices of 2010 divided by annual total water withdrawal.
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Angola | 53.5 | 48.9 | 69.1 | 102.8 | 106.4 | 115.5 | 121.2 | 127.0 | 128.2 | 124.9 | 124.7 | 123.1 | 122.2 | 115.3 | 116.7 |
| Botswana | 49.6 | 43.8 | 51.9 | 57.7 | 61.5 | 62.3 | 70.4 | 75.7 | 72.0 | 72.1 | 78.3 | 77.1 | 80.3 | 67.1 | 70.9 |
| Comoros | 55.3 | 61.9 | 74.3 | 78.7 | 83.7 | 91.2 | 94.7 | 96.6 | 99.3 | 104.8 | 109.1 | 113.1 | 117.6 | 120.8 | |
| Democratic Republic of the Congo | 28.3 | 29.1 | 38.2 | 40.8 | 43.7 | 47.4 | 51.9 | 55.5 | 56.8 | 58.9 | 62.3 | 65.1 | 66.2 | 70.3 | |
| Lesotho | 20.1 | 33.2 | 38.1 | 45.4 | 47.5 | 50.5 | 51.4 | 52.2 | 53.9 | 55.8 | 54.1 | 53.3 | 52.5 | 48.2 | 49.3 |
| Madagascar | 0.4 | 0.6 | 0.6 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.8 | 0.9 | 0.9 | 0.9 | 1.0 | 0.9 | 1.0 |
| Malawi | 3.8 | 3.9 | 5.6 | 5.8 | 5.9 | 6.3 | 6.6 | 6.8 | 7.0 | 7.2 | 7.6 | 8.0 | 8.1 | 8.4 | |
| Mauritius | 7.1 | 11.0 | 11.5 | 15.7 | 18.3 | 18.5 | 18.3 | 18.7 | 19.6 | 20.1 | 21.2 | 22.8 | 23.3 | 19.5 | 20.3 |
| Mozambique | 4.8 | 6.0 | 7.3 | 8.9 | 9.2 | 9.7 | 10.0 | 10.5 | 11.0 | 11.5 | 11.8 | 12.2 | 12.5 | 12.4 | 12.7 |
| Namibia | 17.0 | 19.1 | 25.3 | 31.2 | 32.8 | 34.4 | 36.4 | 38.6 | 40.2 | 40.2 | 39.8 | 40.2 | 39.9 | 36.7 | 38.0 |
| Seychelles | 51.5 | 83.1 | 82.9 | 97.9 | 107.2 | 110.5 | 111.9 | 116.4 | 126.8 | 142.2 | 152.1 | 159.6 | 168.4 | 148.6 | 149.4 |
| South Africa | 13.9 | 17.4 | 19.4 | 21.0 | 21.3 | 21.5 | 23.6 | 20.8 | 18.6 | 18.3 | 18.2 | 18.3 | 18.0 | 16.6 | 16.9 |
| इस्वातिनी | 2.1 | 2.3 | 2.7 | 3.2 | 3.2 | 3.4 | 3.5 | 3.6 | 3.7 | 3.8 | 3.9 | 3.9 | 4.1 | 4.0 | 4.2 |
| United Republic of Tanzania | 4.3 | 5.0 | 6.7 | 7.2 | 7.6 | 8.1 | 8.6 | 9.1 | 9.8 | 10.4 | 11.0 | 11.6 | 11.9 | 12.4 | |
| Zambia | 5.0 | 6.9 | 10.5 | 11.1 | 11.9 | 12.5 | 13.1 | 13.5 | 14.0 | 14.5 | 15.1 | 15.3 | 14.9 | 15.8 | |
| Zimbabwe | 9.2 | 5.2 | 3.6 | 4.0 | 4.6 | 5.4 | 5.6 | 5.7 | 5.9 | 5.9 | 6.3 | 5.9 | 4.9 | 3.9 | 4.2 |