| 2000 | 2012 | |
|---|---|---|
| Central African Republic | 9.0 | 12.0 |
| Comoros | 21.0 | 25.0 |
| Sierra Leone | 15.0 | 19.0 |
| Haiti | 22.0 | 31.0 |
| Côte d'Ivoire | 14.0 | 22.0 |
| Papua New Guinea | 24.0 | 31.0 |
| Burundi | 12.0 | 19.0 |
| South Sudan | 13.0 | 17.0 |
| Togo | 15.0 | 20.0 |
| Somalia | 11.0 | 12.0 |
| Timor-Leste | 19.0 | 27.0 |
| Liberia | 13.0 | 22.0 |
| Chad | 11.0 | 13.0 |
| Guinea-Bissau | 14.0 | 18.0 |
| Yemen | 20.0 | 28.0 |
| Solomon Islands | 37.0 | 46.0 |
| Democratic Republic of the Congo | 11.0 | 15.0 |
| Guinea | 13.0 | 20.0 |
| Afghanistan | 16.0 | 23.0 |