| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Belize | 42.3 | 2021 |
| 2 | Burundi | 36.73 | 2021 |
| 3 | Rwanda | 36.3 | 2021 |
| 4 | Bermuda | 30.58 | 2021 |
| 5 | Barbados | 27.99 | 2021 |
| 6 | Sudan | 25 | 2021 |
| 7 | Solomon Islands | 24.9 | 2021 |
| 8 | Tanzania | 24.85 | 2021 |
| 9 | Uganda | 23.57 | 2021 |
| 10 | Cayman Islands | 23.29 | 2021 |
| 11 | Kenya | 22.43 | 2021 |
| 12 | Venezuela, RB | 22.32 | 2021 |
| 13 | Palau | 20.27 | 2021 |
| 14 | Angola | 20.25 | 2021 |
| 15 | Korea, Rep. | 19.05 | 2021 |
| 16 | Vanuatu | 18.87 | 2021 |
| 17 | Gambia, The | 18.5 | 2021 |
| 18 | Guyana | 18.24 | 2021 |
| 19 | Fiji | 17.99 | 2021 |
| 20 | Sierra Leone | 17.95 | 2021 |
| 21 | Antigua and Barbuda | 17.92 | 2021 |
| 22 | Liberia | 17.82 | 2021 |
| 23 | Malawi | 16.9 | 2021 |
| 24 | Guinea | 16.47 | 2021 |
| 25 | Guinea-Bissau | 16.36 | 2021 |
| 26 | Nauru | 16 | 2021 |
| 27 | Switzerland | 15.69 | 2021 |
| 28 | Trinidad and Tobago | 15.59 | 2021 |
| 29 | St. Vincent and the Grenadines | 15.14 | 2021 |
| 30 | Seychelles | 15.13 | 2021 |
| 31 | Cabo Verde | 15.07 | 2021 |
| 32 | Suriname | 14.92 | 2021 |
| 33 | Morocco | 14.81 | 2021 |
| 34 | Norway | 14.67 | 2021 |
| 35 | Benin | 14.05 | 2021 |
| 36 | Niger | 14.03 | 2021 |
| 37 | Ghana | 13.77 | 2021 |
| 38 | Honduras | 13.64 | 2021 |
| 39 | Mali | 13.38 | 2021 |
| 40 | Botswana | 13.36 | 2021 |
| 41 | Togo | 13.35 | 2021 |
| 42 | El Salvador | 13.33 | 2021 |
| 43 | Colombia | 13.27 | 2021 |
| 44 | Bhutan | 13.2 | 2021 |
| 45 | Bolivia | 13.08 | 2021 |
| 46 | Iceland | 12.79 | 2021 |
| 47 | Panama | 12.47 | 2021 |
| 48 | Nepal | 12.37 | 2021 |
| 49 | Ethiopia | 12.31 | 2021 |
| 50 | Algeria | 11.7 | 2021 |
| 51 | Nigeria | 11.68 | 2021 |
| 52 | Montenegro | 11.65 | 2021 |
| 53 | Kyrgyz Republic | 11.35 | 2021 |
| 54 | Sri Lanka | 11.22 | 2021 |
| 55 | Costa Rica | 11.14 | 2021 |
| 56 | Bosnia and Herzegovina | 10.84 | 2021 |
| 57 | Thailand | 10.8 | 2021 |
| 58 | Jamaica | 10.75 | 2021 |
| 59 | Cuba | 10.13 | 2021 |
| 60 | Paraguay | 9.95 | 2021 |
| 61 | Lesotho | 9.92 | 2021 |
| 62 | Burkina Faso | 9.71 | 2021 |
| 63 | Zambia | 9.5 | 2021 |
| 64 | Philippines | 9.45 | 2021 |
| 65 | Azerbaijan | 9.27 | 2021 |
| 66 | Senegal | 9.12 | 2021 |
| 67 | Zimbabwe | 9 | 2021 |
| 68 | Lao PDR | 8.84 | 2021 |
| 69 | Nicaragua | 8.59 | 2021 |
| 70 | Cambodia | 8.57 | 2021 |
| 71 | Kazakhstan | 8.4 | 2021 |
| 72 | Serbia | 8.28 | 2021 |
| 73 | Guatemala | 8.22 | 2021 |
| 74 | Libya | 8.07 | 2021 |
| 75 | Maldives | 8.05 | 2021 |
| 76 | Turkiye | 7.93 | 2021 |
| 77 | Mozambique | 7.92 | 2021 |
| 78 | Madagascar | 7.86 | 2021 |
| 79 | Dominican Republic | 7.84 | 2021 |
| 80 | Papua New Guinea | 7.8 | 2021 |
| 81 | Armenia | 7.63 | 2021 |
| 82 | Aruba | 7.57 | 2021 |
| 83 | Moldova | 7.55 | 2021 |
| 84 | Mongolia | 7.48 | 2021 |
| 85 | Uruguay | 7.25 | 2021 |
| 86 | Eswatini | 7.22 | 2021 |
| 87 | Russian Federation | 7.16 | 2021 |
| 88 | Belarus | 6.8 | 2021 |
| 89 | Cote d'Ivoire | 6.74 | 2021 |
| 90 | Viet Nam | 6.68 | 2021 |
| 91 | Myanmar | 6.58 | 2021 |
| 92 | North Macedonia | 6.44 | 2021 |
| 93 | Israel | 6.32 | 2021 |
| 94 | United Kingdom | 6.29 | 2021 |
| 95 | Tajikistan | 6.26 | 2021 |
| 96 | United Arab Emirates | 6.25 | 2021 |
| 97 | Bangladesh | 6.21 | 2021 |
| 98 | Mauritania | 6.16 | 2021 |
| 99 | Pakistan | 6.04 | 2021 |
| 100 | Chile | 6 | 2021 |
| 101 | Argentina | 5.88 | 2021 |
| 102 | Canada | 5.47 | 2021 |
| 103 | South Africa | 5.46 | 2021 |
| 104 | Uzbekistan | 5.25 | 2021 |
| 105 | Albania | 5.2 | 2021 |
| 106 | Brazil | 5.03 | 2021 |
| 107 | Namibia | 4.86 | 2021 |
| 108 | Bahrain | 4.78 | 2021 |
| 109 | Oman | 4.62 | 2021 |
| 110 | French Polynesia | 4.59 | 2021 |
| 111 | India | 4.59 | 2021 |
| 112 | Ecuador | 4.34 | 2021 |
| 113 | Japan | 4.27 | 2021 |
| 114 | Comoros | 4.18 | 2021 |
| 115 | Tonga | 4.06 | 2021 |
| 116 | Indonesia | 3.94 | 2021 |
| 117 | Qatar | 3.6 | 2021 |
| 118 | Georgia | 3.36 | 2021 |
| 119 | Kuwait | 3.19 | 2021 |
| 120 | Malaysia | 3.15 | 2021 |
| 121 | Ukraine | 3.11 | 2021 |
| 122 | China | 2.99 | 2021 |
| 123 | United States | 2.89 | 2021 |
| 124 | Austria | 2.84 | 2021 |
| 125 | Belgium | 2.84 | 2021 |
| 126 | Bulgaria | 2.84 | 2021 |
| 127 | Croatia | 2.84 | 2021 |
| 128 | Cyprus | 2.84 | 2021 |
| 129 | Czechia | 2.84 | 2021 |
| 130 | Denmark | 2.84 | 2021 |
| 131 | Estonia | 2.84 | 2021 |
| 132 | Finland | 2.84 | 2021 |
| 133 | France | 2.84 | 2021 |
| 134 | Germany | 2.84 | 2021 |
| 135 | Greece | 2.84 | 2021 |
| 136 | Hungary | 2.84 | 2021 |
| 137 | Ireland | 2.84 | 2021 |
| 138 | Italy | 2.84 | 2021 |
| 139 | Latvia | 2.84 | 2021 |
| 140 | Lithuania | 2.84 | 2021 |
| 141 | Luxembourg | 2.84 | 2021 |
| 142 | Malta | 2.84 | 2021 |
| 143 | Netherlands | 2.84 | 2021 |
| 144 | Poland | 2.84 | 2021 |
| 145 | Portugal | 2.84 | 2021 |
| 146 | Romania | 2.84 | 2021 |
| 147 | Slovak Republic | 2.84 | 2021 |
| 148 | Slovenia | 2.84 | 2021 |
| 149 | Spain | 2.84 | 2021 |
| 150 | Sweden | 2.84 | 2021 |
| 151 | Mauritius | 2.61 | 2021 |
| 152 | Timor-Leste | 2.55 | 2021 |
| 153 | Australia | 1.89 | 2021 |
| 154 | New Zealand | 1.64 | 2021 |
| 155 | Singapore | 1.32 | 2021 |
| 156 | Peru | 0.82 | 2021 |
| 157 | Brunei Darussalam | 0.01 | 2021 |
| 158 | Hong Kong SAR, China | 0 | 2021 |
| 159 | Macao SAR, China | 0 | 2021 |