| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Sudan | 26.8 | 2021 |
| 2 | Bermuda | 20.81 | 2021 |
| 3 | Cayman Islands | 19.66 | 2021 |
| 4 | Gambia, The | 19.16 | 2021 |
| 5 | Venezuela, RB | 16.89 | 2021 |
| 6 | Algeria | 14.42 | 2021 |
| 7 | Bangladesh | 13.84 | 2021 |
| 8 | Antigua and Barbuda | 13.73 | 2021 |
| 9 | Morocco | 13.32 | 2021 |
| 10 | Nauru | 13.27 | 2021 |
| 11 | Nepal | 13.13 | 2021 |
| 12 | Guinea-Bissau | 13.04 | 2021 |
| 13 | Ethiopia | 12.88 | 2021 |
| 14 | Pakistan | 12.81 | 2021 |
| 15 | Lesotho | 12.71 | 2021 |
| 16 | Maldives | 12.56 | 2021 |
| 17 | Sierra Leone | 12.56 | 2021 |
| 18 | Zimbabwe | 12.38 | 2021 |
| 19 | Nigeria | 12.37 | 2021 |
| 20 | Guinea | 11.68 | 2021 |
| 21 | Togo | 11.62 | 2021 |
| 22 | St. Vincent and the Grenadines | 11.56 | 2021 |
| 23 | Argentina | 11.46 | 2021 |
| 24 | Uruguay | 11.17 | 2021 |
| 25 | Rwanda | 11.12 | 2021 |
| 26 | Cuba | 10.98 | 2021 |
| 27 | Aruba | 10.86 | 2021 |
| 28 | Belize | 10.86 | 2021 |
| 29 | Burundi | 10.86 | 2021 |
| 30 | Brazil | 10.74 | 2021 |
| 31 | Eswatini | 10.57 | 2021 |
| 32 | Madagascar | 10.3 | 2021 |
| 33 | Ghana | 10.17 | 2021 |
| 34 | Solomon Islands | 10.13 | 2021 |
| 35 | Benin | 10.08 | 2021 |
| 36 | Mauritania | 10.07 | 2021 |
| 37 | Vanuatu | 10.07 | 2021 |
| 38 | Mali | 10.04 | 2021 |
| 39 | Bhutan | 10.01 | 2021 |
| 40 | French Polynesia | 10.01 | 2021 |
| 41 | Barbados | 9.99 | 2021 |
| 42 | Bolivia | 9.76 | 2021 |
| 43 | Jamaica | 9.73 | 2021 |
| 44 | Senegal | 9.66 | 2021 |
| 45 | Burkina Faso | 9.63 | 2021 |
| 46 | Uganda | 9.31 | 2021 |
| 47 | Zambia | 9.29 | 2021 |
| 48 | Niger | 9.28 | 2021 |
| 49 | Cambodia | 9.21 | 2021 |
| 50 | Cote d'Ivoire | 9.18 | 2021 |
| 51 | Lao PDR | 8.7 | 2021 |
| 52 | Kenya | 8.65 | 2021 |
| 53 | India | 8.55 | 2021 |
| 54 | Suriname | 8.54 | 2021 |
| 55 | Ecuador | 8.5 | 2021 |
| 56 | Cabo Verde | 8.43 | 2021 |
| 57 | Tonga | 8.38 | 2021 |
| 58 | Malawi | 8.28 | 2021 |
| 59 | Namibia | 8.2 | 2021 |
| 60 | Angola | 8.19 | 2021 |
| 61 | Dominican Republic | 7.99 | 2021 |
| 62 | Tanzania | 7.97 | 2021 |
| 63 | Azerbaijan | 7.89 | 2021 |
| 64 | Paraguay | 7.59 | 2021 |
| 65 | Bosnia and Herzegovina | 7.41 | 2021 |
| 66 | South Africa | 7.06 | 2021 |
| 67 | Mozambique | 6.94 | 2021 |
| 68 | Thailand | 6.8 | 2021 |
| 69 | Nicaragua | 6.6 | 2021 |
| 70 | Tajikistan | 6.45 | 2021 |
| 71 | Indonesia | 6.41 | 2021 |
| 72 | Serbia | 6.25 | 2021 |
| 73 | Honduras | 6.12 | 2021 |
| 74 | Liberia | 6.09 | 2021 |
| 75 | Trinidad and Tobago | 6.03 | 2021 |
| 76 | Chile | 5.98 | 2021 |
| 77 | Kyrgyz Republic | 5.93 | 2021 |
| 78 | El Salvador | 5.81 | 2021 |
| 79 | Myanmar | 5.71 | 2021 |
| 80 | Armenia | 5.7 | 2021 |
| 81 | Colombia | 5.26 | 2021 |
| 82 | Belarus | 5.06 | 2021 |
| 83 | Viet Nam | 4.98 | 2021 |
| 84 | Mongolia | 4.96 | 2021 |
| 85 | Comoros | 4.95 | 2021 |
| 86 | North Macedonia | 4.89 | 2021 |
| 87 | Fiji | 4.86 | 2021 |
| 88 | Botswana | 4.81 | 2021 |
| 89 | Uzbekistan | 4.76 | 2021 |
| 90 | Russian Federation | 4.71 | 2021 |
| 91 | Guyana | 4.7 | 2021 |
| 92 | Libya | 4.66 | 2021 |
| 93 | Philippines | 4.63 | 2021 |
| 94 | Panama | 4.4 | 2021 |
| 95 | Oman | 4.3 | 2021 |
| 96 | Guatemala | 4.28 | 2021 |
| 97 | Palau | 4.2 | 2021 |
| 98 | Kazakhstan | 4.19 | 2021 |
| 99 | Turkiye | 4.18 | 2021 |
| 100 | Qatar | 4.12 | 2021 |
| 101 | Korea, Rep. | 4.1 | 2021 |
| 102 | Moldova | 4.07 | 2021 |
| 103 | Bahrain | 4.06 | 2021 |
| 104 | Costa Rica | 4.05 | 2021 |
| 105 | Kuwait | 4 | 2021 |
| 106 | Malaysia | 3.88 | 2021 |
| 107 | Ukraine | 3.66 | 2021 |
| 108 | China | 3.24 | 2021 |
| 109 | United Arab Emirates | 3.22 | 2021 |
| 110 | Australia | 3.09 | 2021 |
| 111 | Montenegro | 3.01 | 2021 |
| 112 | New Zealand | 2.94 | 2021 |
| 113 | Austria | 2.9 | 2021 |
| 114 | Belgium | 2.9 | 2021 |
| 115 | Bulgaria | 2.9 | 2021 |
| 116 | Croatia | 2.9 | 2021 |
| 117 | Cyprus | 2.9 | 2021 |
| 118 | Czechia | 2.9 | 2021 |
| 119 | Denmark | 2.9 | 2021 |
| 120 | Estonia | 2.9 | 2021 |
| 121 | Finland | 2.9 | 2021 |
| 122 | France | 2.9 | 2021 |
| 123 | Germany | 2.9 | 2021 |
| 124 | Greece | 2.9 | 2021 |
| 125 | Hungary | 2.9 | 2021 |
| 126 | Ireland | 2.9 | 2021 |
| 127 | Italy | 2.9 | 2021 |
| 128 | Latvia | 2.9 | 2021 |
| 129 | Lithuania | 2.9 | 2021 |
| 130 | Luxembourg | 2.9 | 2021 |
| 131 | Malta | 2.9 | 2021 |
| 132 | Netherlands | 2.9 | 2021 |
| 133 | Poland | 2.9 | 2021 |
| 134 | Portugal | 2.9 | 2021 |
| 135 | Romania | 2.9 | 2021 |
| 136 | Slovak Republic | 2.9 | 2021 |
| 137 | Slovenia | 2.9 | 2021 |
| 138 | Spain | 2.9 | 2021 |
| 139 | Sweden | 2.9 | 2021 |
| 140 | Georgia | 2.82 | 2021 |
| 141 | Switzerland | 2.78 | 2021 |
| 142 | United Kingdom | 2.78 | 2021 |
| 143 | Albania | 2.75 | 2021 |
| 144 | Canada | 2.54 | 2021 |
| 145 | Timor-Leste | 2.52 | 2021 |
| 146 | United States | 2.51 | 2021 |
| 147 | Peru | 2.46 | 2021 |
| 148 | Sri Lanka | 2.37 | 2021 |
| 149 | Papua New Guinea | 2.26 | 2021 |
| 150 | Israel | 1.96 | 2021 |
| 151 | Japan | 1.61 | 2021 |
| 152 | Mauritius | 1.03 | 2021 |
| 153 | Norway | 0.68 | 2021 |
| 154 | Seychelles | 0.18 | 2021 |
| 155 | Brunei Darussalam | 0.17 | 2021 |
| 156 | Hong Kong SAR, China | 0 | 2021 |
| 157 | Iceland | 0 | 2021 |
| 158 | Macao SAR, China | 0 | 2021 |
| 159 | Singapore | 0 | 2021 |