| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Bermuda | 23.24 | 2021 |
| 2 | Sudan | 21.82 | 2021 |
| 3 | Cayman Islands | 20.89 | 2021 |
| 4 | Algeria | 19.03 | 2021 |
| 5 | Uganda | 17.32 | 2021 |
| 6 | Ethiopia | 17.2 | 2021 |
| 7 | Zimbabwe | 17.18 | 2021 |
| 8 | Nauru | 15.45 | 2021 |
| 9 | Comoros | 15.43 | 2021 |
| 10 | India | 14.85 | 2021 |
| 11 | Morocco | 14.39 | 2021 |
| 12 | Zambia | 14.38 | 2021 |
| 13 | Bangladesh | 14.05 | 2021 |
| 14 | Venezuela, RB | 13.99 | 2021 |
| 15 | Korea, Rep. | 13.81 | 2021 |
| 16 | Kenya | 13.61 | 2021 |
| 17 | Brazil | 13.5 | 2021 |
| 18 | Solomon Islands | 13.49 | 2021 |
| 19 | Tanzania | 13.3 | 2021 |
| 20 | Argentina | 13.11 | 2021 |
| 21 | Burundi | 12.98 | 2021 |
| 22 | Rwanda | 12.9 | 2021 |
| 23 | Ecuador | 12.86 | 2021 |
| 24 | Nepal | 12.69 | 2021 |
| 25 | Malawi | 12.4 | 2021 |
| 26 | Benin | 12.17 | 2021 |
| 27 | Burkina Faso | 12.17 | 2021 |
| 28 | Cote d'Ivoire | 12.17 | 2021 |
| 29 | Gambia, The | 12.17 | 2021 |
| 30 | Ghana | 12.17 | 2021 |
| 31 | Guinea | 12.17 | 2021 |
| 32 | Guinea-Bissau | 12.17 | 2021 |
| 33 | Liberia | 12.17 | 2021 |
| 34 | Mali | 12.17 | 2021 |
| 35 | Niger | 12.17 | 2021 |
| 36 | Nigeria | 12.17 | 2021 |
| 37 | Senegal | 12.17 | 2021 |
| 38 | Sierra Leone | 12.17 | 2021 |
| 39 | Togo | 12.17 | 2021 |
| 40 | Thailand | 12.14 | 2021 |
| 41 | Mauritania | 12.07 | 2021 |
| 42 | Belize | 11.94 | 2021 |
| 43 | Barbados | 11.91 | 2021 |
| 44 | Bolivia | 11.9 | 2021 |
| 45 | Madagascar | 11.69 | 2021 |
| 46 | Guyana | 11.63 | 2021 |
| 47 | Maldives | 11.44 | 2021 |
| 48 | Pakistan | 11.38 | 2021 |
| 49 | Tonga | 10.83 | 2021 |
| 50 | Turkiye | 10.78 | 2021 |
| 51 | Angola | 10.7 | 2021 |
| 52 | Cambodia | 10.55 | 2021 |
| 53 | Suriname | 10.4 | 2021 |
| 54 | Uruguay | 10.39 | 2021 |
| 55 | Mozambique | 10.38 | 2021 |
| 56 | Cabo Verde | 10.19 | 2021 |
| 57 | Cuba | 10.18 | 2021 |
| 58 | St. Vincent and the Grenadines | 10.04 | 2021 |
| 59 | Fiji | 9.92 | 2021 |
| 60 | Antigua and Barbuda | 9.91 | 2021 |
| 61 | Paraguay | 9.91 | 2021 |
| 62 | Switzerland | 9.88 | 2021 |
| 63 | Liechtenstein | 9.86 | 2021 |
| 64 | Bhutan | 9.76 | 2021 |
| 65 | Viet Nam | 9.72 | 2021 |
| 66 | Aruba | 9.36 | 2021 |
| 67 | Vanuatu | 9.17 | 2021 |
| 68 | French Polynesia | 9.16 | 2021 |
| 69 | Azerbaijan | 8.92 | 2021 |
| 70 | Trinidad and Tobago | 8.85 | 2021 |
| 71 | Norway | 8.77 | 2021 |
| 72 | Jamaica | 8.52 | 2021 |
| 73 | Lao PDR | 8.5 | 2021 |
| 74 | Indonesia | 8.1 | 2021 |
| 75 | Tajikistan | 8.03 | 2021 |
| 76 | Botswana | 7.94 | 2021 |
| 77 | Eswatini | 7.89 | 2021 |
| 78 | Lesotho | 7.89 | 2021 |
| 79 | Namibia | 7.89 | 2021 |
| 80 | South Africa | 7.89 | 2021 |
| 81 | China | 7.49 | 2021 |
| 82 | Serbia | 7.45 | 2021 |
| 83 | Uzbekistan | 7.34 | 2021 |
| 84 | Dominican Republic | 7.33 | 2021 |
| 85 | Russian Federation | 6.86 | 2021 |
| 86 | Belarus | 6.85 | 2021 |
| 87 | Kyrgyz Republic | 6.85 | 2021 |
| 88 | North Macedonia | 6.84 | 2021 |
| 89 | Armenia | 6.81 | 2021 |
| 90 | Colombia | 6.7 | 2021 |
| 91 | Myanmar | 6.51 | 2021 |
| 92 | Bosnia and Herzegovina | 6.48 | 2021 |
| 93 | Sri Lanka | 6.45 | 2021 |
| 94 | Philippines | 6.16 | 2021 |
| 95 | El Salvador | 6.02 | 2021 |
| 96 | Chile | 5.98 | 2021 |
| 97 | Kazakhstan | 5.8 | 2021 |
| 98 | Honduras | 5.79 | 2021 |
| 99 | Oman | 5.77 | 2021 |
| 100 | Nicaragua | 5.72 | 2021 |
| 101 | Moldova | 5.64 | 2021 |
| 102 | Austria | 5.63 | 2021 |
| 103 | Belgium | 5.63 | 2021 |
| 104 | Bulgaria | 5.63 | 2021 |
| 105 | Croatia | 5.63 | 2021 |
| 106 | Cyprus | 5.63 | 2021 |
| 107 | Czechia | 5.63 | 2021 |
| 108 | Denmark | 5.63 | 2021 |
| 109 | Estonia | 5.63 | 2021 |
| 110 | Finland | 5.63 | 2021 |
| 111 | France | 5.63 | 2021 |
| 112 | Germany | 5.63 | 2021 |
| 113 | Greece | 5.63 | 2021 |
| 114 | Hungary | 5.63 | 2021 |
| 115 | Ireland | 5.63 | 2021 |
| 116 | Italy | 5.63 | 2021 |
| 117 | Latvia | 5.63 | 2021 |
| 118 | Lithuania | 5.63 | 2021 |
| 119 | Luxembourg | 5.63 | 2021 |
| 120 | Malta | 5.63 | 2021 |
| 121 | Netherlands | 5.63 | 2021 |
| 122 | Poland | 5.63 | 2021 |
| 123 | Portugal | 5.63 | 2021 |
| 124 | Romania | 5.63 | 2021 |
| 125 | Slovak Republic | 5.63 | 2021 |
| 126 | Slovenia | 5.63 | 2021 |
| 127 | Spain | 5.63 | 2021 |
| 128 | Sweden | 5.63 | 2021 |
| 129 | Malaysia | 5.61 | 2021 |
| 130 | Costa Rica | 5.59 | 2021 |
| 131 | Guatemala | 5.59 | 2021 |
| 132 | Libya | 5.23 | 2021 |
| 133 | Mongolia | 5.21 | 2021 |
| 134 | Panama | 5.16 | 2021 |
| 135 | Qatar | 4.98 | 2021 |
| 136 | United Arab Emirates | 4.98 | 2021 |
| 137 | Bahrain | 4.97 | 2021 |
| 138 | Kuwait | 4.94 | 2021 |
| 139 | Iceland | 4.9 | 2021 |
| 140 | Japan | 4.84 | 2021 |
| 141 | Palau | 4.55 | 2021 |
| 142 | Ukraine | 4.53 | 2021 |
| 143 | United Kingdom | 4.36 | 2021 |
| 144 | Papua New Guinea | 4.28 | 2021 |
| 145 | Montenegro | 3.75 | 2021 |
| 146 | Albania | 3.71 | 2021 |
| 147 | Israel | 3.64 | 2021 |
| 148 | United States | 3.59 | 2021 |
| 149 | Canada | 3.16 | 2021 |
| 150 | Timor-Leste | 2.53 | 2021 |
| 151 | Peru | 2.46 | 2021 |
| 152 | Australia | 2.45 | 2021 |
| 153 | Seychelles | 2.37 | 2021 |
| 154 | New Zealand | 1.99 | 2021 |
| 155 | Georgia | 1.65 | 2021 |
| 156 | Mauritius | 0.79 | 2021 |
| 157 | Brunei Darussalam | 0.21 | 2021 |
| 158 | Singapore | 0.08 | 2021 |
| 159 | Hong Kong SAR, China | 0 | 2021 |
| 160 | Macao SAR, China | 0 | 2021 |