| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Micronesia, Fed. Sts. | 23.62883 | 2021 |
| 2 | Cuba | 13.01 | 2021 |
| 3 | Marshall Islands | 12.7380596819888 | 2021 |
| 4 | American Samoa | 11.760709 | 2021 |
| 5 | Solomon Islands | 9.94 | 2021 |
| 6 | Botswana | 9.48 | 2021 |
| 7 | Virgin Islands (U.S.) | 9.3561772 | 2021 |
| 8 | Namibia | 8.919050768048 | 2021 |
| 9 | Puerto Rico | 8.62495026820096 | 2021 |
| 10 | Guam | 8.3161306 | 2021 |
| 11 | Djibouti | 7.80288270781746 | 2021 |
| 12 | New Zealand | 7.37 | 2021 |
| 13 | Saudi Arabia | 7.1861867 | 2021 |
| 14 | Iceland | 7.17038861205149 | 2021 |
| 15 | Sierra Leone | 7.09906777775652 | 2021 |
| 16 | Sweden | 7.07961708394365 | 2021 |
| 17 | Eswatini | 7.05078893803617 | 2021 |
| 18 | Papua New Guinea | 6.9 | 2021 |
| 19 | Costa Rica | 6.85717834728279 | 2021 |
| 20 | Norway | 6.74502790481969 | 2021 |
| 21 | Venezuela, RB | 6.54 | 2021 |
| 22 | Oman | 6.49726909438033 | 2021 |
| 23 | South Africa | 6.49636971995593 | 2021 |
| 24 | Belize | 6.39 | 2021 |
| 25 | Barbados | 6.37076440226129 | 2021 |
| 26 | Honduras | 6.33 | 2021 |
| 27 | Lesotho | 6.27066910468114 | 2021 |
| 28 | Denmark | 6.24096490619321 | 2021 |
| 29 | Kiribati | 6.1 | 2021 |
| 30 | Bolivia | 6.08 | 2021 |
| 31 | Brazil | 5.94603465392286 | 2021 |
| 32 | Belgium | 5.94301952933552 | 2021 |
| 33 | Tunisia | 5.9 | 2021 |
| 34 | Bhutan | 5.808292089143 | 2021 |
| 35 | Aruba | 5.75208403362842 | 2021 |
| 36 | Finland | 5.71727574434593 | 2021 |
| 37 | Israel | 5.55455769737424 | 2021 |
| 38 | Moldova | 5.54030457086247 | 2021 |
| 39 | Chile | 5.5288416385867 | 2021 |
| 40 | Mozambique | 5.38 | 2021 |
| 41 | Cyprus | 5.36255618701566 | 2021 |
| 42 | Kyrgyz Republic | 5.28774211900058 | 2021 |
| 43 | Jamaica | 5.2246927145304 | 2021 |
| 44 | Cabo Verde | 5.21371659070838 | 2021 |
| 45 | Morocco | 5.2 | 2021 |
| 46 | Burundi | 5.17552163934371 | 2021 |
| 47 | St. Vincent and the Grenadines | 5.17340256153343 | 2021 |
| 48 | United Kingdom | 5.09641969612617 | 2021 |
| 49 | Argentina | 5.03900899926811 | 2021 |
| 50 | Ukraine | 5.02103168778124 | 2021 |
| 51 | Australia | 5.01034128558313 | 2021 |
| 52 | Dominica | 5 | 2021 |
| 53 | Senegal | 4.98871857494673 | 2021 |
| 54 | Uzbekistan | 4.93858873339081 | 2021 |
| 55 | Luxembourg | 4.90424132423053 | 2021 |
| 56 | Kenya | 4.87050510355228 | 2021 |
| 57 | Austria | 4.86904988537168 | 2021 |
| 58 | Curacao | 4.85692918938814 | 2021 |
| 59 | France | 4.79840379680802 | 2021 |
| 60 | Mauritius | 4.77 | 2021 |
| 61 | Estonia | 4.76068470960549 | 2021 |
| 62 | Netherlands | 4.69985472758674 | 2021 |
| 63 | Malta | 4.69374872768249 | 2021 |
| 64 | Slovenia | 4.63509904774228 | 2021 |
| 65 | Uruguay | 4.62960400140192 | 2021 |
| 66 | Malawi | 4.6224340281138 | 2021 |
| 67 | Seychelles | 4.60310184137083 | 2021 |
| 68 | Iraq | 4.6 | 2021 |
| 69 | Portugal | 4.58769656643003 | 2021 |
| 70 | Mongolia | 4.57563128871155 | 2021 |
| 71 | Viet Nam | 4.57156725932114 | 2021 |
| 72 | Germany | 4.53345437624769 | 2021 |
| 73 | Poland | 4.53109092311184 | 2021 |
| 74 | Mali | 4.52197107628457 | 2021 |
| 75 | Canada | 4.47903188671508 | 2021 |
| 76 | Algeria | 4.4671956 | 2021 |
| 77 | Belarus | 4.44530031372504 | 2021 |
| 78 | Russian Federation | 4.43283518775609 | 2021 |
| 79 | United States | 4.43153013979605 | 2021 |
| 80 | Egypt, Arab Rep. | 4.4111256 | 2021 |
| 81 | Macao SAR, China | 4.40203861731598 | 2021 |
| 82 | Switzerland | 4.37407402601123 | 2021 |
| 83 | Colombia | 4.31309340733355 | 2021 |
| 84 | Burkina Faso | 4.31 | 2021 |
| 85 | Czechia | 4.30352787787162 | 2021 |
| 86 | Mexico | 4.27938258704376 | 2021 |
| 87 | Ghana | 4.24426964934861 | 2021 |
| 88 | Samoa | 4.24 | 2021 |
| 89 | Slovak Republic | 4.12542096576481 | 2021 |
| 90 | Turkiye | 4.11688261049072 | 2021 |
| 91 | Nicaragua | 4.1 | 2021 |
| 92 | West Bank and Gaza | 4.07809722538055 | 2021 |
| 93 | Bulgaria | 4.06227190277432 | 2021 |
| 94 | Spain | 4.00270138832438 | 2021 |
| 95 | Brunei Darussalam | 3.99014368743954 | 2021 |
| 96 | Maldives | 3.98127732416525 | 2021 |
| 97 | Ireland | 3.97980002911489 | 2021 |
| 98 | Trinidad and Tobago | 3.96989299694744 | 2021 |
| 99 | Fiji | 3.95506627050267 | 2021 |
| 100 | Thailand | 3.89731150987899 | 2021 |
| 101 | Azerbaijan | 3.89614439288728 | 2021 |
| 102 | Hungary | 3.88763114383326 | 2021 |
| 103 | Malaysia | 3.88609371974762 | 2021 |
| 104 | Lithuania | 3.882395151751 | 2021 |
| 105 | Italy | 3.85203237187571 | 2021 |
| 106 | Korea, Rep. | 3.84041475855001 | 2021 |
| 107 | Bahamas, The | 3.8356 | 2021 |
| 108 | Latvia | 3.8118131511009 | 2021 |
| 109 | San Marino | 3.77211368896831 | 2021 |
| 110 | Grenada | 3.75 | 2021 |
| 111 | Tanzania | 3.73 | 2021 |
| 112 | Serbia | 3.69962505977639 | 2021 |
| 113 | Liberia | 3.66 | 2021 |
| 114 | Croatia | 3.64238955891275 | 2021 |
| 115 | Ecuador | 3.62495513358704 | 2021 |
| 116 | Tajikistan | 3.60743788502946 | 2021 |
| 117 | Togo | 3.57141272875945 | 2021 |
| 118 | Angola | 3.57 | 2021 |
| 119 | Zambia | 3.56386353324634 | 2021 |
| 120 | Peru | 3.50933804121078 | 2021 |
| 121 | Sao Tome and Principe | 3.48 | 2021 |
| 122 | Suriname | 3.4447781 | 2021 |
| 123 | Romania | 3.4048865574169 | 2021 |
| 124 | El Salvador | 3.35235653853383 | 2021 |
| 125 | Iran, Islamic Rep. | 3.32768563764598 | 2021 |
| 126 | St. Lucia | 3.29695883942655 | 2021 |
| 127 | Niger | 3.27589211580644 | 2021 |
| 128 | North Macedonia | 3.26865212313863 | 2021 |
| 129 | Indonesia | 3.26672479522181 | 2021 |
| 130 | Kazakhstan | 3.26478464137584 | 2021 |
| 131 | Paraguay | 3.21718079056815 | 2021 |
| 132 | Kuwait | 3.19 | 2021 |
| 133 | Timor-Leste | 3.18762089405893 | 2021 |
| 134 | Cote d'Ivoire | 3.18644784854212 | 2021 |
| 135 | Greece | 3.13068542427625 | 2021 |
| 136 | India | 3.08 | 2021 |
| 137 | Ethiopia | 3.07445529644556 | 2021 |
| 138 | Guatemala | 3.06734319179677 | 2021 |
| 139 | Liechtenstein | 3.06221621494003 | 2021 |
| 140 | Gabon | 3.06 | 2021 |
| 141 | Benin | 2.93313927895418 | 2021 |
| 142 | Mauritania | 2.93 | 2021 |
| 143 | Tonga | 2.93 | 2021 |
| 144 | Guyana | 2.92 | 2021 |
| 145 | Bahrain | 2.91 | 2021 |
| 146 | Nepal | 2.89187204849563 | 2021 |
| 147 | United Arab Emirates | 2.87026949648222 | 2021 |
| 148 | Andorra | 2.84932104106389 | 2021 |
| 149 | Jordan | 2.84222790960026 | 2021 |
| 150 | Hong Kong SAR, China | 2.82959281207101 | 2021 |
| 151 | Panama | 2.8 | 2021 |
| 152 | Albania | 2.79249297190928 | 2021 |
| 153 | Singapore | 2.76 | 2021 |
| 154 | Armenia | 2.72293184502268 | 2021 |
| 155 | Cameroon | 2.68 | 2021 |
| 156 | Gambia, The | 2.66 | 2021 |
| 157 | Japan | 2.64903894986104 | 2021 |
| 158 | Lao PDR | 2.61316360845178 | 2021 |
| 159 | Syrian Arab Republic | 2.5960693 | 2021 |
| 160 | Afghanistan | 2.59444730376298 | 2021 |
| 161 | Comoros | 2.53189603258799 | 2021 |
| 162 | Rwanda | 2.52444136642048 | 2021 |
| 163 | Congo, Rep. | 2.52 | 2021 |
| 164 | Dominican Republic | 2.51925224689344 | 2021 |
| 165 | Qatar | 2.44868874881754 | 2021 |
| 166 | Guinea | 2.39117943254863 | 2021 |
| 167 | Turkmenistan | 2.32 | 2021 |
| 168 | Turks and Caicos Islands | 2.29260212125094 | 2021 |
| 169 | Antigua and Barbuda | 2.25 | 2021 |
| 170 | Sudan | 2.18 | 2021 |
| 171 | Libya | 2.1374382 | 2021 |
| 172 | Lebanon | 2.1 | 2021 |
| 173 | Madagascar | 2.08 | 2021 |
| 174 | Congo, Dem. Rep. | 2.06 | 2021 |
| 175 | Vanuatu | 2.02921986438198 | 2021 |
| 176 | Pakistan | 2.02734916362365 | 2021 |
| 177 | Zimbabwe | 1.91 | 2021 |
| 178 | Philippines | 1.84 | 2021 |
| 179 | China | 1.79 | 2021 |
| 180 | Chad | 1.76559848199446 | 2021 |
| 181 | Cambodia | 1.76374090999532 | 2021 |
| 182 | South Sudan | 1.7627250334384 | 2021 |
| 183 | Georgia | 1.76 | 2021 |
| 184 | Eritrea | 1.72 | 2021 |
| 185 | Uganda | 1.71356786922118 | 2021 |
| 186 | Myanmar | 1.6509697839467 | 2021 |
| 187 | Sri Lanka | 1.63568884113916 | 2021 |
| 188 | St. Kitts and Nevis | 1.63349678526283 | 2021 |
| 189 | Haiti | 1.461652 | 2021 |
| 190 | Bermuda | 1.42826320512029 | 2021 |
| 191 | Bangladesh | 1.34567567868521 | 2021 |
| 192 | Guinea-Bissau | 1.16 | 2021 |
| 193 | Central African Republic | 1.15 | 2021 |
| 194 | Monaco | 1.03 | 2021 |
| 195 | Equatorial Guinea | 1 | 2021 |
| 196 | Somalia | 0.991144636141377 | 2021 |
| 197 | Nigeria | 0.85 | 2021 |
| 198 | New Caledonia | 0.53888079544 | 2021 |
| 199 | French Polynesia | 0.499851816078 | 2021 |