| 1. | Ghana | 2.79 $ | |
| 2. | Nigeria | 1.98 $ | |
| 3. | Cameroon | 1.81 $ | |
| 4. | Ivory Coast | 1.61 $ | |
| 5. | Namibia | 1.54 $ | |
| 6. | Zimbabwe | 1.53 $ | |
| 7. | Botswana | 1.43 $ | |
| 8. | Uganda | 1.30 $ | |
| 9. | South Africa | 1.16 $ | |
| 10. | Mauritius | 1.08 $ | |
| 11. | Mozambique | 1.01 $ | |
| 12. | Kenya | 0.84 $ | |
| 13. | Morocco | 0.75 $ | |
| 14. | Tunisia | 0.70 $ | |
| 15. | Ethiopia | 0.66 $ | |
| 16. | Libya | 0.60 $ | |
| 17. | Algeria | 0.57 $ | |
| 18. | Egypt | 0.49 $ |