| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Korea, Rep. | 16.67 | 2019 |
| 2 | Lesotho | 16.67 | 2019 |
| 3 | Suriname | 12.47 | 2019 |
| 4 | India | 11.32 | 2019 |
| 5 | Guyana | 11.19 | 2019 |
| 6 | Solomon Islands | 10.58 | 2019 |
| 7 | Zimbabwe | 10.55 | 2019 |
| 8 | Belgium | 10.36 | 2019 |
| 9 | Sweden | 9.8 | 2019 |
| 10 | Japan | 9.71 | 2019 |
| 11 | Micronesia, Fed. Sts. | 9.62 | 2019 |
| 12 | Switzerland | 9.3 | 2019 |
| 13 | Lithuania | 9.23 | 2019 |
| 14 | Uruguay | 9.07 | 2019 |
| 15 | Eswatini | 9.03 | 2019 |
| 16 | Russian Federation | 8.7 | 2019 |
| 17 | Serbia | 8.65 | 2019 |
| 18 | Korea, Dem. People's Rep. | 8.53 | 2019 |
| 19 | France | 8.5 | 2019 |
| 20 | South Africa | 8.36 | 2019 |
| 21 | Slovenia | 8.34 | 2019 |
| 22 | Hungary | 8.24 | 2019 |
| 23 | Samoa | 7.62 | 2019 |
| 24 | Nepal | 7.6 | 2019 |
| 25 | Netherlands | 7.5 | 2019 |
| 26 | Norway | 7.45 | 2019 |
| 27 | Uzbekistan | 7.33 | 2019 |
| 28 | China | 7.27 | 2019 |
| 29 | Ukraine | 7.12 | 2019 |
| 30 | Australia | 7.07 | 2019 |
| 31 | Finland | 7.06 | 2019 |
| 32 | Luxembourg | 6.96 | 2019 |
| 33 | Vanuatu | 6.96 | 2019 |
| 34 | Eritrea | 6.9 | 2019 |
| 35 | Latvia | 6.87 | 2019 |
| 36 | Austria | 6.66 | 2019 |
| 37 | Germany | 6.66 | 2019 |
| 38 | United States | 6.66 | 2019 |
| 39 | Djibouti | 6.59 | 2019 |
| 40 | Estonia | 6.52 | 2019 |
| 41 | Sri Lanka | 6.44 | 2019 |
| 42 | Croatia | 6.42 | 2019 |
| 43 | Denmark | 6.41 | 2019 |
| 44 | Canada | 6.38 | 2019 |
| 45 | Montenegro | 6.38 | 2019 |
| 46 | Mozambique | 6.36 | 2019 |
| 47 | Portugal | 6.32 | 2019 |
| 48 | Kazakhstan | 6.25 | 2019 |
| 49 | Iceland | 6.14 | 2019 |
| 50 | New Zealand | 6.14 | 2019 |
| 51 | Fiji | 5.96 | 2019 |
| 52 | Belarus | 5.86 | 2019 |
| 53 | Kiribati | 5.84 | 2019 |
| 54 | Haiti | 5.73 | 2019 |
| 55 | Somalia | 5.7 | 2019 |
| 56 | Singapore | 5.23 | 2019 |
| 57 | Bosnia and Herzegovina | 4.97 | 2019 |
| 58 | Cuba | 4.89 | 2019 |
| 59 | Botswana | 4.87 | 2019 |
| 60 | Czechia | 4.87 | 2019 |
| 61 | Mongolia | 4.83 | 2019 |
| 62 | Rwanda | 4.58 | 2019 |
| 63 | Trinidad and Tobago | 4.54 | 2019 |
| 64 | Sierra Leone | 4.51 | 2019 |
| 65 | Comoros | 4.5 | 2019 |
| 66 | United Kingdom | 4.49 | 2019 |
| 67 | Viet Nam | 4.47 | 2019 |
| 68 | Cabo Verde | 4.37 | 2019 |
| 69 | Thailand | 4.35 | 2019 |
| 70 | Equatorial Guinea | 4.29 | 2019 |
| 71 | Ireland | 4.07 | 2019 |
| 72 | Paraguay | 4.07 | 2019 |
| 73 | Togo | 4.05 | 2019 |
| 74 | Spain | 4.04 | 2019 |
| 75 | Moldova | 3.99 | 2019 |
| 76 | Burkina Faso | 3.98 | 2019 |
| 77 | Liberia | 3.96 | 2019 |
| 78 | Bulgaria | 3.89 | 2019 |
| 79 | Central African Republic | 3.89 | 2019 |
| 80 | Guinea-Bissau | 3.84 | 2019 |
| 81 | Kyrgyz Republic | 3.84 | 2019 |
| 82 | Chile | 3.83 | 2019 |
| 83 | Bolivia | 3.8 | 2019 |
| 84 | Congo, Dem. Rep. | 3.71 | 2019 |
| 85 | Burundi | 3.63 | 2019 |
| 86 | Turkmenistan | 3.59 | 2019 |
| 87 | Guinea | 3.58 | 2019 |
| 88 | Congo, Rep. | 3.57 | 2019 |
| 89 | Poland | 3.56 | 2019 |
| 90 | Cameroon | 3.53 | 2019 |
| 91 | Kenya | 3.48 | 2019 |
| 92 | Argentina | 3.47 | 2019 |
| 93 | Ecuador | 3.47 | 2019 |
| 94 | Tonga | 3.45 | 2019 |
| 95 | Madagascar | 3.43 | 2019 |
| 96 | Angola | 3.4 | 2019 |
| 97 | Bhutan | 3.4 | 2019 |
| 98 | Italy | 3.38 | 2019 |
| 99 | South Sudan | 3.38 | 2019 |
| 100 | Pakistan | 3.35 | 2019 |
| 101 | Brazil | 3.27 | 2019 |
| 102 | El Salvador | 3.27 | 2019 |
| 103 | Libya | 3.26 | 2019 |
| 104 | Yemen, Rep. | 3.23 | 2019 |
| 105 | Senegal | 3.12 | 2019 |
| 106 | Benin | 3.09 | 2019 |
| 107 | Gambia, The | 3.07 | 2019 |
| 108 | Guatemala | 3.07 | 2019 |
| 109 | Niger | 2.98 | 2019 |
| 110 | Slovak Republic | 2.98 | 2019 |
| 111 | Chad | 2.87 | 2019 |
| 112 | Cambodia | 2.79 | 2019 |
| 113 | Ethiopia | 2.77 | 2019 |
| 114 | Morocco | 2.71 | 2019 |
| 115 | North Macedonia | 2.71 | 2019 |
| 116 | Albania | 2.7 | 2019 |
| 117 | Lao PDR | 2.69 | 2019 |
| 118 | Mali | 2.69 | 2019 |
| 119 | Mauritius | 2.68 | 2019 |
| 120 | Namibia | 2.66 | 2019 |
| 121 | Malawi | 2.63 | 2019 |
| 122 | Cote d'Ivoire | 2.58 | 2019 |
| 123 | Sudan | 2.56 | 2019 |
| 124 | Timor-Leste | 2.53 | 2019 |
| 125 | Gabon | 2.52 | 2019 |
| 126 | Romania | 2.52 | 2019 |
| 127 | Tanzania | 2.44 | 2019 |
| 128 | Afghanistan | 2.37 | 2019 |
| 129 | Colombia | 2.33 | 2019 |
| 130 | Mexico | 2.33 | 2019 |
| 131 | Israel | 2.31 | 2019 |
| 132 | Ghana | 2.25 | 2019 |
| 133 | Malaysia | 2.25 | 2019 |
| 134 | Bangladesh | 2.24 | 2019 |
| 135 | Iran, Islamic Rep. | 2.19 | 2019 |
| 136 | Zambia | 2.12 | 2019 |
| 137 | Nicaragua | 2.08 | 2019 |
| 138 | Georgia | 2.05 | 2019 |
| 139 | Uganda | 2.01 | 2019 |
| 140 | Costa Rica | 2 | 2019 |
| 141 | Dominican Republic | 1.96 | 2019 |
| 142 | Malta | 1.93 | 2019 |
| 143 | Venezuela, RB | 1.78 | 2019 |
| 144 | Greece | 1.77 | 2019 |
| 145 | Mauritania | 1.73 | 2019 |
| 146 | Iraq | 1.72 | 2019 |
| 147 | Papua New Guinea | 1.68 | 2019 |
| 148 | Puerto Rico | 1.66 | 2019 |
| 149 | Bahrain | 1.6 | 2019 |
| 150 | Tajikistan | 1.49 | 2019 |
| 151 | Turkiye | 1.47 | 2019 |
| 152 | Belize | 1.45 | 2019 |
| 153 | Tunisia | 1.42 | 2019 |
| 154 | Algeria | 1.41 | 2019 |
| 155 | Seychelles | 1.41 | 2019 |
| 156 | Peru | 1.4 | 2019 |
| 157 | Nigeria | 1.39 | 2019 |
| 158 | Barbados | 1.33 | 2019 |
| 159 | Philippines | 1.31 | 2019 |
| 160 | St. Lucia | 1.21 | 2019 |
| 161 | Honduras | 1.19 | 2019 |
| 162 | Qatar | 1.15 | 2019 |
| 163 | Indonesia | 1.11 | 2019 |
| 164 | Myanmar | 1.11 | 2019 |
| 165 | Azerbaijan | 0.88 | 2019 |
| 166 | Cyprus | 0.87 | 2019 |
| 167 | Grenada | 0.87 | 2019 |
| 168 | Bahamas, The | 0.83 | 2019 |
| 169 | Saudi Arabia | 0.72 | 2019 |
| 170 | Brunei Darussalam | 0.65 | 2019 |
| 171 | United Arab Emirates | 0.59 | 2019 |
| 172 | Kuwait | 0.55 | 2019 |
| 173 | Maldives | 0.52 | 2019 |
| 174 | Lebanon | 0.51 | 2019 |
| 175 | Armenia | 0.48 | 2019 |
| 176 | Egypt, Arab Rep. | 0.45 | 2019 |
| 177 | Panama | 0.44 | 2019 |
| 178 | Sao Tome and Principe | 0.44 | 2019 |
| 179 | Jamaica | 0.41 | 2019 |
| 180 | Jordan | 0.34 | 2019 |
| 181 | Oman | 0.34 | 2019 |
| 182 | Syrian Arab Republic | 0.27 | 2019 |
| 183 | West Bank and Gaza | 0.27 | 2019 |
| 184 | Antigua and Barbuda | 0 | 2019 |
| 185 | St. Vincent and the Grenadines | 0 | 2019 |