| 2000 | 2012 | |
|---|---|---|
| Senegal | 6.0 | 9.0 |
| Somalia | 7.0 | 12.0 |
| Gambia | 8.0 | 10.0 |
| Kenya | 7.0 | 10.0 |
| Mozambique | 9.0 | 11.0 |
| United Republic of Tanzania | 8.0 | 12.0 |
| Uganda | 8.0 | 13.0 |
| Egypt | 6.0 | 7.0 |
| Liberia | 6.0 | 9.0 |
| Malawi | 4.0 | 7.0 |
| Mauritius | 11.0 | 11.0 |
| Zambia | 8.0 | 11.0 |
| Cameroon | 7.0 | 9.0 |
| Lesotho | 8.0 | 10.0 |
| Mauritania | 8.0 | 9.0 |
| Nigeria | 7.0 | 10.0 |
| Algeria | 16.0 | 12.0 |
| Libya | 16.0 | 19.0 |
| Congo | 8.0 | 9.0 |
| Eswatini | 8.0 | 10.0 |
| Cabo Verde | 10.0 | 12.0 |
| Sudan | 13.0 | 14.0 |
| Côte d'Ivoire | 7.0 | 9.0 |
| Niger | 5.0 | 8.0 |
| Benin | 7.0 | 9.0 |
| Chad | 7.0 | 7.0 |
| Djibouti | 9.0 | 10.0 |
| Guinea-Bissau | 6.0 | 8.0 |
| Democratic Republic of the Congo | 8.0 | 10.0 |
| Madagascar | 9.0 | 12.0 |
| Burkina Faso | 6.0 | 10.0 |
| Ghana | 6.0 | 9.0 |
| Guinea | 6.0 | 9.0 |
| Equatorial Guinea | 8.0 | 11.0 |
| Zimbabwe | 5.0 | 9.0 |
| Botswana | 5.0 | 11.0 |
| Comoros | 10.0 | 12.0 |
| Central African Republic | 5.0 | 8.0 |
| Gabon | 8.0 | 9.0 |
| Morocco | 10.0 | 11.0 |
| Ethiopia | 10.0 | 11.0 |
| Tunisia | 13.0 | 11.0 |
| Eritrea | 45.0 | 12.0 |
| Burundi | 12.0 | 12.0 |
| South Africa | 11.0 | 10.0 |
| South Sudan | 8.0 | 11.0 |
| Mali | 6.0 | 9.0 |
| Rwanda | 8.0 | 14.0 |
| Sierra Leone | 7.0 | 8.0 |
| Togo | 7.0 | 9.0 |
| Angola | 7.0 | 10.0 |