| Country or Area | Subgroup | Year | Source | Unit | Value | |
|---|
| Benin | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 2 |
| Burkina Faso | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 13 |
| Cameroon | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 1 |
| Central African Republic | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 1 |
| Chad | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 18 |
| Côte d'Ivoire | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 9 |
| Djibouti | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 49 |
| Egypt | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 24 |
| Eritrea | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 63 |
| Ethiopia | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 38 |
| Gambia | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 42 |
| Ghana | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 0 |
| Guinea | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 57 |
| Guinea-Bissau | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 39 |
| Mali | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 75 |
| Mauritania | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 66 |
| Niger | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 1 |
| Nigeria | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 30 |
| Senegal | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 13 |
| Sierra Leone | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 10 |
| Somalia | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 46 |
| Sub-Saharan Africa | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 24 |
| Sudan | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 37 |
| Togo | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 0 |
| Uganda | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 1 |
| United Republic of Tanzania | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 3 |
| Western and Central Africa | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 23 |
| Yemen | Total | 2002-2011 | UN_Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS) and other national surveys | Percent | 20 |