| 1. | Ghana | 2.79 $ | |
| 2. | Nigeria | 1.98 $ | |
| 3. | Cameroon | 1.76 $ | |
| 4. | Ivory Coast | 1.55 $ | |
| 5. | Zimbabwe | 1.53 $ | |
| 6. | Namibia | 1.49 $ | |
| 7. | Botswana | 1.40 $ | |
| 8. | Uganda | 1.28 $ | |
| 9. | South Africa | 1.10 $ | |
| 10. | Mauritius | 1.09 $ | |
| 11. | Mozambique | 1.02 $ | |
| 12. | Kenya | 0.84 $ | |
| 13. | Morocco | 0.73 $ | |
| 14. | Tunisia | 0.69 $ | |
| 15. | Ethiopia | 0.66 $ | |
| 16. | Libya | 0.60 $ | |
| 17. | Algeria | 0.55 $ | |
| 18. | Egypt | 0.46 $ |