| 1. | Nigeria | 2.35 $ | |
| 2. | Ghana | 2.26 $ | |
| 3. | Mauritius | 1.88 $ | |
| 4. | Ethiopia | 1.79 $ | |
| 5. | Botswana | 1.77 $ | |
| 6. | Zimbabwe | 1.77 $ | |
| 7. | Morocco | 1.74 $ | |
| 8. | Namibia | 1.69 $ | |
| 9. | Mozambique | 1.64 $ | |
| 10. | South Africa | 1.51 $ | |
| 11. | Cameroon | 1.50 $ | |
| 12. | Algeria | 1.47 $ | |
| 13. | Tunisia | 1.45 $ | |
| 14. | Kenya | 1.44 $ | |
| 15. | Uganda | 1.33 $ | |
| 16. | Libya | 1.18 $ | |
| 17. | Ivory Coast | 1.06 $ | |
| 18. | Egypt | 0.70 $ |