Proportion of total population served with shared sanitation (%)
| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 |
| ギニアビサウ | 4.0 | 6.9 | 10.5 | 11.2 | 11.8 | 12.5 | 13.2 | 13.9 | 14.5 | 15.2 | 15.8 | 16.4 | 17.0 | 17.6 | 17.7 |
| トーゴ | 18.5 | 21.2 | 23.2 | 23.6 | 24.0 | 24.4 | 24.8 | 25.2 | 25.6 | 26.0 | 26.4 | 26.7 | 27.1 | 27.3 | 27.5 |
| ブルキナファソ | 8.2 | 13.3 | 19.3 | 20.4 | 21.6 | 22.8 | 24.0 | 25.2 | 26.5 | 27.7 | 28.9 | 30.1 | 31.3 | 32.3 | 33.3 |
| ニジェール | 3.9 | 5.2 | 6.5 | 6.8 | 7.0 | 7.3 | 7.6 | 7.9 | 8.2 | 8.5 | 8.8 | 9.1 | 9.5 | 9.7 | 10.0 |
| マリ | 13.9 | 16.1 | 17.4 | 17.6 | 17.7 | 17.8 | 17.8 | 17.8 | 17.8 | 17.7 | 17.7 | 17.5 | 17.4 | 17.2 | 17.0 |
| コートジボワール | 17.8 | 20.6 | 22.7 | 23.1 | 23.5 | 23.8 | 24.2 | 24.6 | 24.9 | 25.3 | 25.6 | 25.9 | 26.2 | 26.7 | 27.2 |
| セネガル | 11.1 | 12.6 | 14.0 | 14.3 | 14.6 | 14.8 | 15.1 | 15.4 | 15.6 | 15.9 | 16.2 | 16.4 | 16.7 | 16.9 | 17.2 |
| ベナン | 15.4 | 16.9 | 18.2 | 18.4 | 18.6 | 18.8 | 19.0 | 19.1 | 19.3 | 19.4 | 19.5 | 19.7 | 19.8 | 19.9 | 20.0 |