| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Bermuda | 21.51 | 2021 |
| 2 | Cayman Islands | 21.26 | 2021 |
| 3 | Sudan | 19.85 | 2021 |
| 4 | Algeria | 18.45 | 2021 |
| 5 | Ethiopia | 17.07 | 2021 |
| 6 | Zimbabwe | 16.72 | 2021 |
| 7 | Comoros | 16.69 | 2021 |
| 8 | Uganda | 16.47 | 2021 |
| 9 | Venezuela, RB | 15.25 | 2021 |
| 10 | Brazil | 15.14 | 2021 |
| 11 | Argentina | 14.61 | 2021 |
| 12 | Bangladesh | 13.45 | 2021 |
| 13 | Zambia | 12.59 | 2021 |
| 14 | Morocco | 12.47 | 2021 |
| 15 | Kenya | 12.45 | 2021 |
| 16 | Maldives | 12.42 | 2021 |
| 17 | Nepal | 12.25 | 2021 |
| 18 | Bolivia | 11.86 | 2021 |
| 19 | Mauritania | 11.82 | 2021 |
| 20 | Benin | 11.79 | 2021 |
| 21 | Burkina Faso | 11.79 | 2021 |
| 22 | Cote d'Ivoire | 11.79 | 2021 |
| 23 | Gambia, The | 11.79 | 2021 |
| 24 | Ghana | 11.79 | 2021 |
| 25 | Guinea | 11.79 | 2021 |
| 26 | Guinea-Bissau | 11.79 | 2021 |
| 27 | Liberia | 11.79 | 2021 |
| 28 | Mali | 11.79 | 2021 |
| 29 | Niger | 11.79 | 2021 |
| 30 | Nigeria | 11.79 | 2021 |
| 31 | Senegal | 11.79 | 2021 |
| 32 | Sierra Leone | 11.79 | 2021 |
| 33 | Togo | 11.79 | 2021 |
| 34 | Tonga | 11.67 | 2021 |
| 35 | Nauru | 11.64 | 2021 |
| 36 | Tanzania | 11.63 | 2021 |
| 37 | Pakistan | 11.62 | 2021 |
| 38 | Burundi | 11.58 | 2021 |
| 39 | Ecuador | 11.57 | 2021 |
| 40 | Malawi | 11.53 | 2021 |
| 41 | Rwanda | 11.43 | 2021 |
| 42 | India | 11.25 | 2021 |
| 43 | Madagascar | 11.09 | 2021 |
| 44 | Uruguay | 11.01 | 2021 |
| 45 | Cuba | 10.98 | 2021 |
| 46 | Aruba | 10.52 | 2021 |
| 47 | Paraguay | 10.34 | 2021 |
| 48 | Cambodia | 10.15 | 2021 |
| 49 | Cabo Verde | 9.97 | 2021 |
| 50 | French Polynesia | 9.85 | 2021 |
| 51 | Thailand | 9.68 | 2021 |
| 52 | Mozambique | 9.66 | 2021 |
| 53 | Bhutan | 9.3 | 2021 |
| 54 | Solomon Islands | 9.23 | 2021 |
| 55 | Belize | 9.04 | 2021 |
| 56 | Guyana | 8.92 | 2021 |
| 57 | Antigua and Barbuda | 8.86 | 2021 |
| 58 | Suriname | 8.79 | 2021 |
| 59 | Viet Nam | 8.75 | 2021 |
| 60 | St. Vincent and the Grenadines | 8.61 | 2021 |
| 61 | Indonesia | 8.56 | 2021 |
| 62 | Azerbaijan | 8.48 | 2021 |
| 63 | Barbados | 8.44 | 2021 |
| 64 | Botswana | 8.44 | 2021 |
| 65 | Eswatini | 8.44 | 2021 |
| 66 | Lesotho | 8.44 | 2021 |
| 67 | Namibia | 8.44 | 2021 |
| 68 | South Africa | 8.44 | 2021 |
| 69 | Angola | 7.93 | 2021 |
| 70 | Lao PDR | 7.86 | 2021 |
| 71 | Tajikistan | 7.83 | 2021 |
| 72 | Vanuatu | 7.81 | 2021 |
| 73 | Korea, Rep. | 7.15 | 2021 |
| 74 | China | 6.88 | 2021 |
| 75 | Fiji | 6.65 | 2021 |
| 76 | Serbia | 6.55 | 2021 |
| 77 | Uzbekistan | 6.5 | 2021 |
| 78 | Bosnia and Herzegovina | 6.46 | 2021 |
| 79 | Russian Federation | 6.46 | 2021 |
| 80 | Belarus | 6.44 | 2021 |
| 81 | Kyrgyz Republic | 6.44 | 2021 |
| 82 | Armenia | 6.43 | 2021 |
| 83 | North Macedonia | 6.35 | 2021 |
| 84 | Dominican Republic | 6.15 | 2021 |
| 85 | Malaysia | 6.06 | 2021 |
| 86 | Myanmar | 5.99 | 2021 |
| 87 | Chile | 5.98 | 2021 |
| 88 | Kazakhstan | 5.74 | 2021 |
| 89 | Jamaica | 5.68 | 2021 |
| 90 | Philippines | 5.66 | 2021 |
| 91 | Trinidad and Tobago | 5.64 | 2021 |
| 92 | Colombia | 5.47 | 2021 |
| 93 | Libya | 5.11 | 2021 |
| 94 | Mongolia | 5.03 | 2021 |
| 95 | El Salvador | 4.97 | 2021 |
| 96 | Honduras | 4.94 | 2021 |
| 97 | Guatemala | 4.89 | 2021 |
| 98 | Nicaragua | 4.85 | 2021 |
| 99 | Moldova | 4.77 | 2021 |
| 100 | Oman | 4.73 | 2021 |
| 101 | Bahrain | 4.64 | 2021 |
| 102 | Kuwait | 4.64 | 2021 |
| 103 | Qatar | 4.64 | 2021 |
| 104 | United Arab Emirates | 4.64 | 2021 |
| 105 | Costa Rica | 4.57 | 2021 |
| 106 | Liechtenstein | 4.55 | 2021 |
| 107 | Switzerland | 4.55 | 2021 |
| 108 | Turkiye | 4.46 | 2021 |
| 109 | Palau | 4.17 | 2021 |
| 110 | Sri Lanka | 4.12 | 2021 |
| 111 | Austria | 4.1 | 2021 |
| 112 | Belgium | 4.1 | 2021 |
| 113 | Bulgaria | 4.1 | 2021 |
| 114 | Croatia | 4.1 | 2021 |
| 115 | Cyprus | 4.1 | 2021 |
| 116 | Czechia | 4.1 | 2021 |
| 117 | Denmark | 4.1 | 2021 |
| 118 | Estonia | 4.1 | 2021 |
| 119 | Finland | 4.1 | 2021 |
| 120 | France | 4.1 | 2021 |
| 121 | Germany | 4.1 | 2021 |
| 122 | Greece | 4.1 | 2021 |
| 123 | Hungary | 4.1 | 2021 |
| 124 | Ireland | 4.1 | 2021 |
| 125 | Italy | 4.1 | 2021 |
| 126 | Latvia | 4.1 | 2021 |
| 127 | Lithuania | 4.1 | 2021 |
| 128 | Luxembourg | 4.1 | 2021 |
| 129 | Malta | 4.1 | 2021 |
| 130 | Netherlands | 4.1 | 2021 |
| 131 | Poland | 4.1 | 2021 |
| 132 | Portugal | 4.1 | 2021 |
| 133 | Romania | 4.1 | 2021 |
| 134 | Slovak Republic | 4.1 | 2021 |
| 135 | Slovenia | 4.1 | 2021 |
| 136 | Spain | 4.1 | 2021 |
| 137 | Sweden | 4.1 | 2021 |
| 138 | Ukraine | 4.07 | 2021 |
| 139 | United States | 3.79 | 2021 |
| 140 | Panama | 3.77 | 2021 |
| 141 | Albania | 3.32 | 2021 |
| 142 | Australia | 2.97 | 2021 |
| 143 | Montenegro | 2.88 | 2021 |
| 144 | United Kingdom | 2.83 | 2021 |
| 145 | Peru | 2.78 | 2021 |
| 146 | Japan | 2.74 | 2021 |
| 147 | Timor-Leste | 2.53 | 2021 |
| 148 | Canada | 2.48 | 2021 |
| 149 | New Zealand | 2.33 | 2021 |
| 150 | Papua New Guinea | 2.2 | 2021 |
| 151 | Israel | 2.19 | 2021 |
| 152 | Norway | 0.87 | 2021 |
| 153 | Seychelles | 0.87 | 2021 |
| 154 | Georgia | 0.86 | 2021 |
| 155 | Mauritius | 0.77 | 2021 |
| 156 | Brunei Darussalam | 0.24 | 2021 |
| 157 | Hong Kong SAR, China | 0 | 2021 |
| 158 | Iceland | 0 | 2021 |
| 159 | Macao SAR, China | 0 | 2021 |
| 160 | Singapore | 0 | 2021 |