| Rank | Country | Value | Year |
|---|---|---|---|
| 1 | Iran, Islamic Rep. | 8.62338590134309 | 2021 |
| 2 | Mongolia | 7.3595855542568 | 2021 |
| 3 | Lao PDR | 7.2291138711234 | 2021 |
| 4 | Uzbekistan | 7.15809705639857 | 2021 |
| 5 | Libya | 6.09273207129043 | 2021 |
| 6 | Tajikistan | 5.56509058666616 | 2021 |
| 7 | Kyrgyz Republic | 5.42757831303586 | 2021 |
| 8 | Kazakhstan | 5.03906826364264 | 2021 |
| 9 | Algeria | 4.91024752640094 | 2021 |
| 10 | Viet Nam | 4.84256733809625 | 2021 |
| 11 | South Africa | 4.63977385186575 | 2021 |
| 12 | Russian Federation | 4.39809567392905 | 2021 |
| 13 | Lebanon | 4.39011211881137 | 2021 |
| 14 | Oman | 4.28462872284863 | 2021 |
| 15 | Kosovo | 4.19021680239907 | 2021 |
| 16 | Bosnia and Herzegovina | 4.11312595244778 | 2021 |
| 17 | Palau | 4.05735081468974 | 2021 |
| 18 | Suriname | 4.0001176489466 | 2021 |
| 19 | Belarus | 3.92896523207296 | 2021 |
| 20 | Ukraine | 3.67293612668515 | 2021 |
| 21 | Serbia | 3.48571268931767 | 2021 |
| 22 | India | 3.44095931382658 | 2021 |
| 23 | Iraq | 3.43510174835367 | 2021 |
| 24 | Cambodia | 3.3049290630666 | 2021 |
| 25 | Azerbaijan | 3.13593230027858 | 2021 |
| 26 | Egypt, Arab Rep. | 3.00877092849729 | 2021 |
| 27 | Guyana | 3.00451979166039 | 2021 |
| 28 | Sudan | 2.92081506640701 | 2021 |
| 29 | Malaysia | 2.91437617862166 | 2021 |
| 30 | Marshall Islands | 2.8293719364122 | 2021 |
| 31 | Moldova | 2.81898578538468 | 2021 |
| 32 | Tunisia | 2.81544257310428 | 2021 |
| 33 | Georgia | 2.81324029847978 | 2021 |
| 34 | Myanmar | 2.76605220486749 | 2021 |
| 35 | Trinidad and Tobago | 2.75225408808648 | 2021 |
| 36 | China | 2.74580037586664 | 2021 |
| 37 | Pakistan | 2.61953045873968 | 2021 |
| 38 | Congo, Rep. | 2.54377984412513 | 2021 |
| 39 | Jamaica | 2.52586247860642 | 2021 |
| 40 | North Macedonia | 2.52533882852403 | 2021 |
| 41 | Mozambique | 2.51810317041678 | 2021 |
| 42 | Bolivia | 2.47524331603112 | 2021 |
| 43 | Jordan | 2.44344709250672 | 2021 |
| 44 | Turkiye | 2.4358210856463 | 2021 |
| 45 | Timor-Leste | 2.42491044106928 | 2021 |
| 46 | Indonesia | 2.37594364421979 | 2021 |
| 47 | Equatorial Guinea | 2.32397758321398 | 2021 |
| 48 | Qatar | 2.31156544023235 | 2021 |
| 49 | Thailand | 2.25954495086022 | 2021 |
| 50 | Botswana | 2.23891251018633 | 2021 |
| 51 | Brunei Darussalam | 2.23863108759235 | 2021 |
| 52 | Morocco | 2.1728236259774 | 2021 |
| 53 | Benin | 2.1432897948425 | 2021 |
| 54 | Bulgaria | 2.07859621586823 | 2021 |
| 55 | Bhutan | 2.03122159074138 | 2021 |
| 56 | Nepal | 2.02006259208093 | 2021 |
| 57 | Seychelles | 2.00808154155671 | 2021 |
| 58 | Poland | 1.99648244677477 | 2021 |
| 59 | Maldives | 1.96531586656908 | 2021 |
| 60 | Armenia | 1.95075286450293 | 2021 |
| 61 | Micronesia, Fed. Sts. | 1.92343188157709 | 2021 |
| 62 | Aruba | 1.89581126929261 | 2021 |
| 63 | Mauritania | 1.89142865908433 | 2021 |
| 64 | Nicaragua | 1.89083570433693 | 2021 |
| 65 | Senegal | 1.88994189912593 | 2021 |
| 66 | Zimbabwe | 1.80545468974183 | 2021 |
| 67 | Zambia | 1.77210504495493 | 2021 |
| 68 | Montenegro | 1.75913313935613 | 2021 |
| 69 | Liberia | 1.7517208109837 | 2021 |
| 70 | Honduras | 1.74180663797586 | 2021 |
| 71 | Angola | 1.71365222644187 | 2021 |
| 72 | Samoa | 1.60093954346078 | 2021 |
| 73 | Mali | 1.59654297988403 | 2021 |
| 74 | Ecuador | 1.57907177402722 | 2021 |
| 75 | Argentina | 1.57478771179578 | 2021 |
| 76 | Philippines | 1.56439012751708 | 2021 |
| 77 | Tonga | 1.5065372569405 | 2021 |
| 78 | Namibia | 1.50552010569534 | 2021 |
| 79 | Korea, Rep. | 1.49052607045798 | 2021 |
| 80 | Mexico | 1.48621807269772 | 2021 |
| 81 | Fiji | 1.4849530028031 | 2021 |
| 82 | Czechia | 1.46169788969133 | 2021 |
| 83 | Chile | 1.44070097814015 | 2021 |
| 84 | Burkina Faso | 1.39785553677908 | 2021 |
| 85 | Gambia, The | 1.39596571850198 | 2021 |
| 86 | Cabo Verde | 1.38711632600668 | 2021 |
| 87 | Burundi | 1.38009561712676 | 2021 |
| 88 | Madagascar | 1.37299776069797 | 2021 |
| 89 | Mauritius | 1.36988573884581 | 2021 |
| 90 | Dominican Republic | 1.36457654784264 | 2021 |
| 91 | Guinea | 1.35007795743469 | 2021 |
| 92 | Sao Tome and Principe | 1.33844874444914 | 2021 |
| 93 | Papua New Guinea | 1.32229366493366 | 2021 |
| 94 | Canada | 1.281305454788 | 2021 |
| 95 | El Salvador | 1.27985398309928 | 2021 |
| 96 | Sri Lanka | 1.27047531157475 | 2021 |
| 97 | Ghana | 1.26816946014192 | 2021 |
| 98 | Gabon | 1.26790291564046 | 2021 |
| 99 | Brazil | 1.26503805892481 | 2021 |
| 100 | Comoros | 1.26075087716045 | 2021 |
| 101 | Antigua and Barbuda | 1.24782416770461 | 2021 |
| 102 | Albania | 1.23603542858925 | 2021 |
| 103 | Nigeria | 1.23447087616223 | 2021 |
| 104 | Cyprus | 1.22336882821158 | 2021 |
| 105 | Afghanistan | 1.22212443671311 | 2021 |
| 106 | Peru | 1.21035413651659 | 2021 |
| 107 | St. Lucia | 1.20809241729482 | 2021 |
| 108 | Togo | 1.20272122881421 | 2021 |
| 109 | Kiribati | 1.19243009578826 | 2021 |
| 110 | Colombia | 1.18990112980537 | 2021 |
| 111 | Dominica | 1.18495533691528 | 2021 |
| 112 | Greece | 1.18479967370382 | 2021 |
| 113 | Nauru | 1.1772286341469 | 2021 |
| 114 | Lesotho | 1.17131685702106 | 2021 |
| 115 | Grenada | 1.17114308566693 | 2021 |
| 116 | Belize | 1.1707948243842 | 2021 |
| 117 | St. Vincent and the Grenadines | 1.17019301175496 | 2021 |
| 118 | Guatemala | 1.16287015321642 | 2021 |
| 119 | Estonia | 1.15294417919908 | 2021 |
| 120 | Hungary | 1.148888626919 | 2021 |
| 121 | Slovak Republic | 1.13155793917391 | 2021 |
| 122 | Australia | 1.10329595304358 | 2021 |
| 123 | Eswatini | 1.10154433969787 | 2021 |
| 124 | Romania | 1.1003878696615 | 2021 |
| 125 | Paraguay | 1.05556591605772 | 2021 |
| 126 | St. Kitts and Nevis | 1.04722456151056 | 2021 |
| 127 | Croatia | 1.04479655558299 | 2021 |
| 128 | Bahamas, The | 1.03903854704978 | 2021 |
| 129 | Turks and Caicos Islands | 1.03848312456397 | 2021 |
| 130 | Sierra Leone | 1.03550996682824 | 2021 |
| 131 | Bangladesh | 1.0333599415669 | 2021 |
| 132 | Kenya | 1.02877244190911 | 2021 |
| 133 | Faroe Islands | 1.01318236503843 | 2021 |
| 134 | Cameroon | 0.993343951572024 | 2021 |
| 135 | Slovenia | 0.971117702939166 | 2021 |
| 136 | Chad | 0.952247661010691 | 2021 |
| 137 | Barbados | 0.9295426400873 | 2021 |
| 138 | Vanuatu | 0.925856316162837 | 2021 |
| 139 | Guinea-Bissau | 0.925777832163036 | 2021 |
| 140 | Solomon Islands | 0.894468493726918 | 2021 |
| 141 | Panama | 0.891859631598143 | 2021 |
| 142 | United States | 0.890531802541054 | 2021 |
| 143 | Ethiopia | 0.88506005870217 | 2021 |
| 144 | Japan | 0.884807900763843 | 2021 |
| 145 | Tanzania | 0.872393608005609 | 2021 |
| 146 | Uganda | 0.83218041720468 | 2021 |
| 147 | Latvia | 0.818249418422752 | 2021 |
| 148 | Lithuania | 0.808584368906028 | 2021 |
| 149 | Cote d'Ivoire | 0.772367089249312 | 2021 |
| 150 | Portugal | 0.75874719814018 | 2021 |
| 151 | Haiti | 0.702990847079045 | 2021 |
| 152 | West Bank and Gaza | 0.69475432075546 | 2021 |
| 153 | Luxembourg | 0.680518844532483 | 2021 |
| 154 | Spain | 0.673521082879954 | 2021 |
| 155 | Belgium | 0.670136920717477 | 2021 |
| 156 | Niger | 0.647140992946541 | 2021 |
| 157 | Netherlands | 0.639232572702185 | 2021 |
| 158 | Germany | 0.626737370089433 | 2021 |
| 159 | Rwanda | 0.624729423027314 | 2021 |
| 160 | Costa Rica | 0.614679542010043 | 2021 |
| 161 | Italy | 0.612845450366221 | 2021 |
| 162 | New Zealand | 0.610311207261826 | 2021 |
| 163 | Singapore | 0.600388861861141 | 2021 |
| 164 | Austria | 0.567822672145411 | 2021 |
| 165 | Malawi | 0.562698175585955 | 2021 |
| 166 | Israel | 0.56099891165046 | 2021 |
| 167 | Finland | 0.55524877345789 | 2021 |
| 168 | Tuvalu | 0.517045625755805 | 2021 |
| 169 | Uruguay | 0.488256058846495 | 2021 |
| 170 | Bermuda | 0.486921122070309 | 2021 |
| 171 | Central African Republic | 0.470567021553605 | 2021 |
| 172 | Djibouti | 0.450853260132065 | 2021 |
| 173 | Ireland | 0.438107476195398 | 2021 |
| 174 | United Kingdom | 0.429822608118105 | 2021 |
| 175 | Somalia | 0.417209367958526 | 2021 |
| 176 | France | 0.415328182311164 | 2021 |
| 177 | Macao SAR, China | 0.388631940514479 | 2021 |
| 178 | Hong Kong SAR, China | 0.378867124394579 | 2021 |
| 179 | Malta | 0.354312736812661 | 2021 |
| 180 | Norway | 0.315010674313667 | 2021 |
| 181 | Denmark | 0.294516624058133 | 2021 |
| 182 | Congo, Dem. Rep. | 0.267266369995342 | 2021 |
| 183 | Iceland | 0.262858387902708 | 2021 |
| 184 | Sweden | 0.22362343377079 | 2021 |
| 185 | Switzerland | 0.199764076238862 | 2021 |
| 186 | Puerto Rico | 0.0773415114441015 | 2021 |