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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Papua New Guinea | 40.6 | 31.3 | 41.7 | 42.1 | 44.1 | 45.8 | 52.0 | 55.4 | 58.4 | 60.5 | 60.3 | 63.0 | 61.0 | 60.7 | |
| Timor-Leste | 0.8 | 1.1 | 1.2 | 1.2 | 1.3 | 1.3 | 1.4 | 1.4 | 1.4 | 1.4 | 1.7 | 2.2 | 2.3 | ||
| Haiti | 8.3 | 8.4 | 8.9 | 9.4 | 9.4 | 9.8 | 10.1 | 10.2 | 10.4 | 10.7 | 10.9 | 10.7 | 10.3 | 10.1 | |
| Yemen, Rep. | 8.2 | 12.3 | 14.3 | 17.7 | 15.4 | 15.8 | 16.6 | 16.5 | 11.9 | 10.8 | 10.2 | 10.3 | 10.5 | 9.6 | 9.5 |
| Afghanistan | 0.3 | 0.4 | 0.8 | 0.8 | 0.9 | 0.9 | 0.9 | 0.9 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 0.8 | |
| 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 |
| Central African Republic | 49.4 | 25.3 | 25.3 | 32.2 | 33.5 | 35.2 | 22.4 | 22.4 | 23.4 | 24.5 | 25.6 | 26.6 | 27.4 | 27.7 | 27.9 |
| Chad | 11.3 | 5.8 | 11.1 | 13.4 | 14.0 | 15.3 | 15.7 | 16.0 | 16.6 | 15.9 | 15.6 | 16.5 | 17.4 | 17.3 | 17.4 |
| 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 | |
| Cote d'Ivoire | 20.7 | 21.6 | 18.5 | 26.0 | 25.4 | 28.3 | 32.4 | 36.8 | 39.4 | 42.3 | 45.4 | 47.6 | 50.8 | 51.1 | 54.8 |
| Congo, Dem. Rep. | 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 | |
| Guinea | 5.0 | 9.0 | 10.5 | 10.1 | 10.3 | 10.6 | 10.6 | 10.7 | 10.8 | 11.6 | 12.4 | 12.8 | 13.6 | 14.2 | 15.0 |
| Guinea-Bissau | 4.0 | 4.7 | 5.6 | 6.1 | 6.0 | 6.1 | 6.2 | 6.6 | 6.9 | 7.3 | 7.5 | 8.0 | 8.1 | 8.6 | |
| Liberia | 12.9 | 16.9 | 12.2 | 17.3 | 18.7 | 20.2 | 22.0 | 22.1 | 22.1 | 21.8 | 22.3 | 22.6 | 22.0 | 21.4 | 22.4 |
| Sao Tome and Principe | 8.0 | 7.1 | 6.9 | 6.7 | 6.6 | 6.7 | 6.7 | 6.6 | 6.7 | 7.0 | 7.3 | 7.4 | 7.6 | 7.8 | |
| Sierra Leone | 18.6 | 17.0 | 21.9 | 26.5 | 28.6 | 31.6 | 36.3 | 33.4 | 32.0 | 34.0 | 35.1 | 36.2 | 38.1 | 37.7 | 39.9 |
| Somalia | 1.3 | 0.6 | 0.9 | 1.2 | 1.3 | 1.4 | 1.5 | 1.7 | 1.9 | 2.0 | 2.3 | 2.3 | 2.4 | 2.3 | 2.4 |
| South Sudan | 17.5 | 19.8 | 20.4 | 18.2 | |||||||||||
| Togo | 25.8 | 20.6 | 16.5 | 19.5 | 20.6 | 21.9 | 23.2 | 24.5 | 25.8 | 26.9 | 28.0 | 29.3 | 30.8 | 31.4 | 33.3 |