| 1. | Nigeria | 2.78 $ | |
| 2. | Ghana | 2.77 $ | |
| 3. | Cameroon | 2.62 $ | |
| 4. | Ivory Coast | 2.28 $ | |
| 5. | Mozambique | 1.62 $ | |
| 6. | Zimbabwe | 1.57 $ | |
| 7. | Ethiopia | 1.47 $ | |
| 8. | Mauritius | 1.39 $ | |
| 9. | Namibia | 1.33 $ | |
| 10. | Botswana | 1.30 $ | |
| 11. | South Africa | 1.03 $ | |
| 12. | Algeria | 0.97 $ | |
| 13. | Libya | 0.93 $ | |
| 14. | Morocco | 0.89 $ | |
| 15. | Egypt | 0.87 $ | |
| 16. | Kenya | 0.81 $ | |
| 17. | Uganda | 0.69 $ | |
| 18. | Tunisia | 0.48 $ |