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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Burundi | 16.6 | 6.8 | 7.8 | 9.7 | 10.1 | 10.5 | 11.1 | 11.5 | 11.1 | 11.0 | 11.1 | 11.2 | 11.5 | 11.5 | 11.8 |
| Kenya | 14.9 | 23.5 | 17.0 | 17.3 | 18.2 | 19.0 | 19.8 | 20.7 | 21.8 | 18.1 | 18.8 | 19.9 | 20.9 | 20.8 | 22.4 |
| Rwanda | 18.3 | 16.0 | 16.0 | 16.2 | 16.6 | 16.4 | 16.5 | 17.1 | 17.2 | 17.1 | 17.8 | 18.3 | 17.7 | 19.6 | |
| South Sudan | 17.5 | 19.8 | 20.4 | 18.2 | |||||||||||
| 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 | |
| Uganda | 22.7 | 37.1 | 33.9 | 39.1 | 42.8 | 44.4 | 46.0 | 48.3 | 50.8 | 53.3 | 54.9 | 58.4 | 62.2 | 64.0 | 66.3 |