| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Romania | 7.42 | 2020 |
| 2 | Georgia | 5.87 | 2020 |
| 3 | Latvia | 5.87 | 2020 |
| 4 | Lithuania | 5.5 | 2020 |
| 5 | Germany | 5.3 | 2020 |
| 6 | Czechia | 5.25 | 2020 |
| 7 | Austria | 5.22 | 2020 |
| 8 | Belarus | 5.21 | 2020 |
| 9 | Poland | 5.16 | 2020 |
| 10 | Ireland | 5.15 | 2020 |
| 11 | Luxembourg | 5.1 | 2020 |
| 12 | Moldova | 4.94 | 2020 |
| 13 | United Kingdom | 4.88 | 2020 |
| 14 | Australia | 4.83 | 2020 |
| 15 | Estonia | 4.82 | 2020 |
| 16 | Bulgaria | 4.77 | 2020 |
| 17 | New Zealand | 4.7 | 2020 |
| 18 | France | 4.68 | 2020 |
| 19 | Slovak Republic | 4.68 | 2020 |
| 20 | Switzerland | 4.61 | 2020 |
| 21 | Lao PDR | 4.53 | 2020 |
| 22 | Uganda | 4.48 | 2020 |
| 23 | United States | 4.43 | 2020 |
| 24 | Slovenia | 4.42 | 2020 |
| 25 | Hungary | 4.36 | 2020 |
| 26 | Andorra | 4.35 | 2020 |
| 27 | Denmark | 4.33 | 2020 |
| 28 | Canada | 4.31 | 2020 |
| 29 | Sweden | 4.3 | 2020 |
| 30 | Belgium | 4.25 | 2020 |
| 31 | Russian Federation | 4.2 | 2020 |
| 32 | Finland | 4.1 | 2020 |
| 33 | Spain | 4.09 | 2020 |
| 34 | Portugal | 4.06 | 2020 |
| 35 | Ukraine | 4.05 | 2020 |
| 36 | Netherlands | 3.95 | 2020 |
| 37 | Seychelles | 3.95 | 2020 |
| 38 | Cameroon | 3.91 | 2020 |
| 39 | Burkina Faso | 3.84 | 2020 |
| 40 | St. Lucia | 3.83 | 2020 |
| 41 | Tanzania | 3.81 | 2020 |
| 42 | Argentina | 3.71 | 2020 |
| 43 | Iceland | 3.61 | 2020 |
| 44 | Benin | 3.46 | 2020 |
| 45 | Chile | 3.46 | 2020 |
| 46 | Korea, Rep. | 3.43 | 2020 |
| 47 | Barbados | 3.35 | 2020 |
| 48 | Norway | 3.35 | 2020 |
| 49 | Gabon | 3.28 | 2020 |
| 50 | Brazil | 3.27 | 2020 |
| 51 | Croatia | 3.27 | 2020 |
| 52 | Mongolia | 3.22 | 2020 |
| 53 | Viet Nam | 3.21 | 2020 |
| 54 | Malta | 3.11 | 2020 |
| 55 | Thailand | 3.08 | 2020 |
| 56 | Italy | 3.07 | 2020 |
| 57 | Peru | 2.99 | 2020 |
| 58 | Grenada | 2.98 | 2020 |
| 59 | Antigua and Barbuda | 2.78 | 2020 |
| 60 | Japan | 2.76 | 2020 |
| 61 | Dominican Republic | 2.69 | 2020 |
| 62 | Cyprus | 2.66 | 2020 |
| 63 | Cambodia | 2.64 | 2020 |
| 64 | Equatorial Guinea | 2.61 | 2020 |
| 65 | Congo, Rep. | 2.56 | 2020 |
| 66 | Uruguay | 2.55 | 2020 |
| 67 | Greece | 2.51 | 2020 |
| 68 | Cabo Verde | 2.49 | 2020 |
| 69 | Mauritius | 2.47 | 2020 |
| 70 | Botswana | 2.45 | 2020 |
| 71 | Trinidad and Tobago | 2.38 | 2020 |
| 72 | Paraguay | 2.37 | 2020 |
| 73 | South Africa | 2.31 | 2020 |
| 74 | Suriname | 2.27 | 2020 |
| 75 | Eswatini | 2.23 | 2020 |
| 76 | St. Vincent and the Grenadines | 2.2 | 2020 |
| 77 | Philippines | 2.18 | 2020 |
| 78 | Guyana | 2.09 | 2020 |
| 79 | Cuba | 2.07 | 2020 |
| 80 | Bosnia and Herzegovina | 2.03 | 2020 |
| 81 | Sao Tome and Principe | 2 | 2020 |
| 82 | Dominica | 1.99 | 2020 |
| 83 | St. Kitts and Nevis | 1.93 | 2020 |
| 84 | Mexico | 1.9 | 2020 |
| 85 | Armenia | 1.83 | 2020 |
| 86 | Panama | 1.82 | 2020 |
| 87 | China | 1.79 | 2020 |
| 88 | Angola | 1.77 | 2020 |
| 89 | Bolivia | 1.66 | 2020 |
| 90 | Namibia | 1.66 | 2020 |
| 91 | Colombia | 1.63 | 2020 |
| 92 | Ghana | 1.63 | 2020 |
| 93 | Albania | 1.59 | 2020 |
| 94 | Burundi | 1.55 | 2020 |
| 95 | Korea, Dem. People's Rep. | 1.55 | 2020 |
| 96 | Bahamas, The | 1.52 | 2020 |
| 97 | Mali | 1.52 | 2020 |
| 98 | North Macedonia | 1.52 | 2020 |
| 99 | Belize | 1.48 | 2020 |
| 100 | Kazakhstan | 1.43 | 2020 |
| 101 | Nicaragua | 1.43 | 2020 |
| 102 | Zambia | 1.38 | 2020 |
| 103 | Lesotho | 1.33 | 2020 |
| 104 | Malawi | 1.31 | 2020 |
| 105 | Costa Rica | 1.28 | 2020 |
| 106 | India | 1.28 | 2020 |
| 107 | El Salvador | 1.25 | 2020 |
| 108 | Guinea-Bissau | 1.25 | 2020 |
| 109 | Haiti | 1.25 | 2020 |
| 110 | Jamaica | 1.22 | 2020 |
| 111 | Israel | 1.21 | 2020 |
| 112 | Nigeria | 1.21 | 2020 |
| 113 | Fiji | 1.19 | 2020 |
| 114 | Honduras | 1.18 | 2020 |
| 115 | Ecuador | 1.15 | 2020 |
| 116 | Liberia | 1.11 | 2020 |
| 117 | Rwanda | 1.07 | 2020 |
| 118 | Kyrgyz Republic | 1.05 | 2020 |
| 119 | Sri Lanka | 1.05 | 2020 |
| 120 | Nauru | 0.99 | 2020 |
| 121 | Cote d'Ivoire | 0.97 | 2020 |
| 122 | Ethiopia | 0.94 | 2020 |
| 123 | Chad | 0.92 | 2020 |
| 124 | Zimbabwe | 0.9 | 2020 |
| 125 | Kenya | 0.86 | 2020 |
| 126 | Samoa | 0.8 | 2020 |
| 127 | Congo, Dem. Rep. | 0.78 | 2020 |
| 128 | Singapore | 0.76 | 2020 |
| 129 | Venezuela, RB | 0.75 | 2020 |
| 130 | Turkmenistan | 0.74 | 2020 |
| 131 | Vanuatu | 0.71 | 2020 |
| 132 | Central African Republic | 0.7 | 2020 |
| 133 | Myanmar | 0.7 | 2020 |
| 134 | Azerbaijan | 0.68 | 2020 |
| 135 | Micronesia, Fed. Sts. | 0.68 | 2020 |
| 136 | Mozambique | 0.64 | 2020 |
| 137 | Guatemala | 0.59 | 2020 |
| 138 | Uzbekistan | 0.57 | 2020 |
| 139 | Togo | 0.53 | 2020 |
| 140 | Solomon Islands | 0.49 | 2020 |
| 141 | Tunisia | 0.41 | 2020 |
| 142 | Turkiye | 0.41 | 2020 |
| 143 | Tuvalu | 0.4 | 2020 |
| 144 | Papua New Guinea | 0.38 | 2020 |
| 145 | Nepal | 0.37 | 2020 |
| 146 | United Arab Emirates | 0.35 | 2020 |
| 147 | Lebanon | 0.34 | 2020 |
| 148 | Madagascar | 0.34 | 2020 |
| 149 | Eritrea | 0.32 | 2020 |
| 150 | Maldives | 0.27 | 2020 |
| 151 | Bahrain | 0.26 | 2020 |
| 152 | Kiribati | 0.25 | 2020 |
| 153 | Qatar | 0.23 | 2020 |
| 154 | Malaysia | 0.2 | 2020 |
| 155 | Tajikistan | 0.2 | 2020 |
| 156 | Gambia, The | 0.19 | 2020 |
| 157 | Brunei Darussalam | 0.17 | 2020 |
| 158 | Guinea | 0.15 | 2020 |
| 159 | Algeria | 0.12 | 2020 |
| 160 | Morocco | 0.12 | 2020 |
| 161 | Tonga | 0.12 | 2020 |
| 162 | Iran, Islamic Rep. | 0.1 | 2020 |
| 163 | Senegal | 0.1 | 2020 |
| 164 | Oman | 0.099 | 2020 |
| 165 | Djibouti | 0.091 | 2020 |
| 166 | Sierra Leone | 0.073 | 2020 |
| 167 | Timor-Leste | 0.062 | 2020 |
| 168 | Iraq | 0.059 | 2020 |
| 169 | Bhutan | 0.057 | 2020 |
| 170 | Jordan | 0.053 | 2020 |
| 171 | Comoros | 0.05 | 2020 |
| 172 | Niger | 0.033 | 2020 |
| 173 | Egypt, Arab Rep. | 0.031 | 2020 |
| 174 | Pakistan | 0.023 | 2020 |
| 175 | Bangladesh | 0.022 | 2020 |
| 176 | Syrian Arab Republic | 0.021 | 2020 |
| 177 | Indonesia | 0.018 | 2020 |
| 178 | Yemen, Rep. | 0.01 | 2020 |
| 179 | Afghanistan | 0.003 | 2020 |
| 180 | Sudan | 0.003 | 2020 |
| 181 | Libya | 0.002 | 2020 |
| 182 | Kuwait | 0 | 2020 |
| 183 | Mauritania | 0 | 2020 |
| 184 | Saudi Arabia | 0 | 2020 |
| 185 | Somalia | 0 | 2020 |