Millennium Development Goal 7: Ensure environmental sustainability
Target 7C: Halve, by 2015, the proportion of people without sustainable access to safe drinking water and basic sanitation
Indicator 7.9: Proportion of population using an improved sanitation facility
Since 1990, 173 million people in Africa have gained access to an improved sanitation facility.
Despite this increase, 231 million people in Africa still practised open defecation in 2008.

Source: AMCOW Snapshot of Drinking Water and Sanitation in Africa –2010.
Reference: http://www.childinfo.org/files/Africa_AMCOW_Snapshot_2010_English_final.pdf, p. 4