
| Rank | Country | Years | Year | |
|---|---|---|---|---|
| 1. | Dominica | 76.16 | 1981 | |
| 2. | Barbados | 73.83 | 1981 | |
| 3. | Aruba | 72.86 | 1981 | |
| 4. | Serbia | 71.06 | 1981 | |
| 5. | Seychelles | 70.59 | 1981 | |
| 6. | Panama | 70.49 | 1981 | |
| 7. | Grenada | 70.47 | 1981 | |
| 8. | Argentina | 70.2 | 1981 | |
| 9. | Sri Lanka | 69.74 | 1981 | |
| 10. | Saint Lucia | 69.23 | 1981 | |
| 11. | Jordan | 68.79 | 1981 | |
| 12. | Brunei | 68.78 | 1981 | |
| 13. | Lebanon | 68.41 | 1981 | |
| 14. | Trinidad and Tobago | 68.37 | 1981 | |
| 15. | Paraguay | 68.19 | 1981 | |
| 16. | Libya | 67.57 | 1981 | |
| 17. | Bahrain | 67.48 | 1981 | |
| 18. | Mexico | 67.34 | 1981 | |
| 19. | Suriname | 67.19 | 1981 | |
| 20. | Dominican Republic | 66.1 | 1981 | |
| 21. | Saint Kitts and Nevis | 66.02 | 1981 | |
| 22. | Kosovo | 65.85 | 1981 | |
| 23. | Colombia | 65.79 | 1981 | |
| 24. | Solomon Islands | 65.15 | 1981 | |
| 25. | Belize | 65.01 | 1981 | |
| 26. | The Bahamas | 64.68 | 1981 | |
| 27. | Malaysia | 64.61 | 1981 | |
| 28. | Turkey | 63.13 | 1981 | |
| 29. | Brazil | 63.02 | 1981 | |
| 30. | Samoa | 62.71 | 1981 | |
| 31. | Cape Verde | 62.46 | 1981 | |
| 32. | Philippines | 62.4 | 1981 | |
| 33. | Guyana | 62.21 | 1981 | |
| 34. | Syria | 62.18 | 1981 | |
| 35. | Honduras | 62.07 | 1981 | |
| 36. | Botswana | 61.24 | 1981 | |
| 37. | Peru | 59.7 | 1981 | |
| 38. | Kenya | 59.49 | 1981 | |
| 39. | Tuvalu | 59.26 | 1981 | |
| 40. | Nicaragua | 59.03 | 1981 | |
| 41. | Lesotho | 57.53 | 1981 | |
| 42. | Namibia | 57.32 | 1981 | |
| 43. | Swaziland | 56.21 | 1981 | |
| 44. | Guatemala | 55.82 | 1981 | |
| 45. | Sao Tome and Principe | 54.83 | 1981 | |
| 46. | Indonesia | 54.52 | 1981 | |
| 47. | Myanmar | 54.12 | 1981 | |
| 48. | Vanuatu | 53.15 | 1981 | |
| 49. | Ghana | 52.9 | 1981 | |
| 50. | Gabon | 52.71 | 1981 | |
| 51. | Togo | 52.61 | 1981 | |
| 52. | Djibouti | 52.28 | 1981 | |
| 53. | Cameroon | 52.27 | 1981 | |
| 54. | Pakistan | 52.01 | 1981 | |
| 55. | Comoros | 51.98 | 1981 | |
| 56. | Papua New Guinea | 51.91 | 1981 | |
| 57. | Zambia | 51.07 | 1981 | |
| 58. | Bangladesh | 50.71 | 1981 | |
| 59. | Republic of Congo | 50.06 | 1981 | |
| 60. | Bhutan | 49.68 | 1981 | |
| 61. | Somalia | 49.66 | 1981 | |
| 62. | Cote d'Ivoire | 49.45 | 1981 | |
| 63. | Burundi | 49 | 1981 | |
| 64. | Central African Republic | 48.99 | 1981 | |
| 65. | Nepal | 48.47 | 1981 | |
| 66. | Eritrea | 48.07 | 1981 | |
| 67. | Madagascar | 48.07 | 1981 | |
| 68. | Haiti | 47.97 | 1981 | |
| 69. | Senegal | 47.95 | 1981 | |
| 70. | Tanzania | 47.89 | 1981 | |
| 71. | Rwanda | 47.61 | 1981 | |
| 72. | Democratic Republic of the Congo | 46.79 | 1981 | |
| 73. | Benin | 45.79 | 1981 | |
| 74. | Ethiopia | 45.72 | 1981 | |
| 75. | Nigeria | 44.82 | 1981 | |
| 76. | Liberia | 44.47 | 1981 | |
| 77. | Uganda | 44.31 | 1981 | |
| 78. | Burkina Faso | 44.14 | 1981 | |
| 79. | Malawi | 43.58 | 1981 | |
| 80. | Mali | 42.64 | 1981 | |
| 81. | Guinea | 42.62 | 1981 | |
| 82. | Mauritania | 42.47 | 1981 | |
| 83. | Western Sahara | 42.46 | 1981 | |
| 84. | Guinea-Bissau | 42.26 | 1981 | |
| 85. | Cambodia | 41.68 | 1981 | |
| 86. | Angola | 40.63 | 1981 | |
| 87. | Sierra Leone | 39.23 | 1981 | |
| 88. | Afghanistan | 38.85 | 1981 | |
| 89. | Niger | 38.27 | 1981 | |
| 90. | Chad | 36.72 | 1981 | |
| 91. | Mozambique | 34.88 | 1981 |