| Country name | 2008 | 2009 | 2010 | 2011 | ||
|---|---|---|---|---|---|---|
| Turkmenistan | 45 | 14 | 5 |
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| Qatar | 21 | 20 |
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| Brunei Darussalam | 19 | 22 | 13 | 17 |
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| Macao SAR, China | 26 | 27 | 23 | 21 |
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| Equatorial Guinea | 28 | 29 | 25 | 38 |
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| Kuwait | 28 | 33 | 30 | 24 |
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| Luxembourg | 33 | 34 | 32 | 31 |
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| China | 35 | 34 | 35 | 34 |
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| Algeria | 30 | 35 |
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| Bahrain | 30 | 35 |
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| Azerbaijan | 28 | 38 | 38 | 32 |
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| Singapore | 39 | 38 | 39 | 41 |
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| Saudi Arabia | 27 | 39 | 35 | 30 |
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| Oman | 35 | 40 |
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| Chad | 60 | 41 | 41 |
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| Norway | 39 | 44 | 43 | 41 |
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| Gabon | 33 | 44 | 39 | 35 |
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| Congo, Rep. | 42 | 45 | 39 | 12 |
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| Panama | 53 | 46 | 54 | 64 |
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| Netherlands | 45 | 46 | 45 | 45 |
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| Cuba | 49 | 48 | 50 |
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| Ireland | 50 | 48 | 50 | 49 |
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| Malaysia | 45 | 49 | 47 | 47 |
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| Sweden | 47 | 49 | 48 | 48 |
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| Denmark | 48 | 49 | 49 | 49 |
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| Czech Republic | 49 | 51 | 51 | 51 |
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| Kazakhstan | 42 | 51 | 49 | 45 |
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| Mauritania | 73 | 51 | 53 | 47 |
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| Iceland | 53 | 51 | 51 | 52 |
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| Belgium | 52 | 53 | 53 | 53 |
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| Russian Federation | 47 | 53 | 50 | 48 |
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| Antigua and Barbuda | 68 | 54 |
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| Estonia | 55 | 54 | 52 | 52 |
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| Bhutan | 52 | 54 | 46 | 38 |
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| Australia | 56 | 54 | 55 | 54 |
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| Korea, Rep. | 55 | 54 | 53 | 53 |
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| Botswana | 49 | 54 | 57 | 54 |
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| Hungary | 54 | 55 | 53 | 64 |
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| Finland | 52 | 55 | 55 | 56 |
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| Austria | 53 | 55 | 55 | 55 |
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| Thailand | 56 | 55 | 54 | 56 |
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| Slovenia | 53 | 56 | 56 | 57 |
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| Uzbekistan | 54 | 56 | 56 | 56 |
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| Spain | 57 | 57 | 58 | 58 |
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| Indonesia | 63 | 57 | 57 | 57 |
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| Israel | 58 | 57 | 58 | 62 |
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| Morocco | 58 | 57 | 57 | 63 |
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| India | 59 | 57 | 56 | 59 |
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| Belarus | 54 | 57 | 56 | 51 |
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| Zambia | 64 | 58 | 49 | 45 |
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| France | 57 | 58 | 58 | 58 |
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| Mongolia | 54 | 58 | 53 | 49 |
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| Croatia | 59 | 58 | 59 | 59 |
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| Switzerland | 56 | 58 | 58 | 57 |
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| Argentina | 59 | 59 | 60 | 60 |
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| Germany | 56 | 59 | 57 | 57 |
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| Canada | 56 | 59 | 58 | 57 |
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| New Zealand | 59 | 59 | 59 | 59 |
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| Chile | 61 | 60 | 58 | 60 |
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| Syrian Arab Republic | 57 | 60 | 71 |
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| Japan | 58 | 60 | 59 | 60 |
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| South Africa | 62 | 60 | 59 | 59 |
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| Italy | 59 | 60 | 61 | 61 |
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| Romania | 64 | 61 | 63 | 61 |
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| Slovak Republic | 57 | 61 | 58 | 57 |
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| Brazil | 59 | 61 | 60 | 60 |
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| Poland | 62 | 61 | 61 |
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| Hong Kong SAR, China | 60 | 61 | 62 | 64 |
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| Latvia | 63 | 62 | 62 | 62 |
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| United Arab Emirates | 62 | 62 | 57 |
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| Tunisia | 61 | 62 | 63 | 66 |
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| Barbados | 62 | 62 |
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| Venezuela, RB | 52 | 63 | 56 | 55 |
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| Colombia | 63 | 63 | 63 | 62 |
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| Bulgaria | 66 | 63 | 63 | 61 |
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| Namibia | 56 | 63 | 62 | 63 |
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| United Kingdom | 63 | 64 | 64 | 64 |
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| Malta | 63 | 64 | 62 | 61 |
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| Sri Lanka | 70 | 64 | 65 | 70 |
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| Ukraine | 63 | 64 | 63 | 66 |
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| Portugal | 67 | 65 | 66 | 66 |
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| Peru | 64 | 65 | 62 | 61 |
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| Tanzania | 66 | 65 | 63 | 66 |
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| Bolivia | 62 | 66 | 62 | 61 |
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| St. Lucia | 80 | 66 | 64 | 71 |
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| Mexico | 65 | 66 | 65 | 64 |
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| Vietnam | 69 | 66 | 65 | 63 |
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| Uruguay | 69 | 66 | 68 | 68 |
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| Costa Rica | 68 | 66 | 64 | 65 |
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| Ecuador | 61 | 67 | 68 | 68 |
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| Sudan | 58 | 67 | 63 | 65 |
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| Bahamas, The | 68 | 67 | 69 | 71 |
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| Cape Verde | 61 | 68 | 65 | 73 |
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| Angola | 40 | 68 | 50 | 47 |
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| Cyprus | 69 | 68 | 68 |
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| Lao PDR | 71 | 68 | 69 | 69 |
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| Papua New Guinea | 57 | 69 | 70 | 73 |
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| Burkina Faso | 70 | 69 | 63 | 65 |
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| Lithuania | 66 | 69 | 64 | 64 |
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| Mali | 76 | 69 | 76 | 71 |
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| Malawi | 79 | 69 | 71 | 74 |
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| United States | 71 | 71 | 71 | 72 |
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| St. Kitts and Nevis | 71 | 71 | 71 | 69 |
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| Turkey | 70 | 71 | 72 | 71 |
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| Cote d'Ivoire | 74 | 72 | 72 | 81 |
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| Greece | 72 | 72 | 73 | 75 |
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| Mauritius | 73 | 74 | 74 | 73 |
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| Ghana | 91 | 74 | 74 | 85 |
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| Cameroon | 72 | 74 | 73 | 69 |
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| Serbia | 77 | 74 | 74 | 72 |
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| Philippines | 74 | 75 | 72 | 74 |
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| Jordan | 80 | 75 | 77 | 83 |
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| Uganda | 74 | 76 | 75 | 75 |
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| Paraguay | 77 | 76 | 77 | 79 |
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| Benin | 75 | 76 | 77 |
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| Egypt, Arab Rep. | 72 | 76 | 75 | 76 |
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| Macedonia, FYR | 80 | 77 | 74 | 74 |
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| Kenya | 78 | 77 | 75 | 78 |
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| Bangladesh | 79 | 77 | 77 | 78 |
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| Kyrgyz Republic | 93 | 78 | 85 | 85 |
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| Lebanon | 84 | 79 | 80 | 80 |
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| Cambodia | 78 | 79 | 82 | 82 |
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| Madagascar | 79 | 79 |
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| Armenia | 75 | 80 | 78 | 81 |
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| Bosnia and Herzegovina | 89 | 80 | 80 | 80 |
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| Jamaica | 89 | 80 | 82 | 86 |
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| Honduras | 80 | 81 | 80 | 78 |
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| Pakistan | 76 | 81 | 82 | 84 |
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| Guinea | 79 | 81 | 83 | 90 |
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| Georgia | 78 | 82 | 75 | 75 |
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| Senegal | 86 | 82 | 81 | 80 |
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| Guyana | 93 | 82 | 87 | 91 |
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| Burundi | 87 | 82 | 81 | 84 |
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| Yemen, Rep. | 77 | 83 | 81 |
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| Montenegro | 91 | 84 | 82 | 84 |
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| Nicaragua | 89 | 84 | 85 | 84 |
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| Grenada | 86 | 85 | 89 | 88 |
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| Dominican Republic | 88 | 85 | 87 | 87 |
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| Congo, Dem. Rep. | 80 | 86 | 76 | 76 |
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| Guatemala | 89 | 86 | 86 | 87 |
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| Dominica | 92 | 86 | 81 | 80 |
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| Togo | 86 | 89 | 89 |
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| St. Vincent and the Grenadines | 86 | 87 | 86 | 87 |
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| Albania | 85 | 87 | 88 | 89 |
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| Gambia, The | 92 | 87 | 88 | 89 |
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| Ethiopia | 90 | 88 | 86 | 81 |
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| Nepal | 80 | 89 | 78 | 82 |
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| Rwanda | 84 | 89 | 90 | 89 |
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| Moldova | 93 | 90 | 94 | 96 |
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| Mozambique | 86 | 90 | 83 | 78 |
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| Central African Republic | 93 | 91 | 91 | 91 |
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| El Salvador | 98 | 91 | 93 | 94 |
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| Puerto Rico | 92 | 92 | 94 |
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| Swaziland | 85 | 93 | 89 | 84 |
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| Tajikistan | 105 | 93 | 94 | 92 |
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| Kosovo | 95 | 93 | 94 | 93 |
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| Sierra Leone | 93 | 94 | 83 | 87 |
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| Afghanistan | 102 | 101 | 99 | 97 |
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| Lesotho | 100 | 102 | 105 | 99 |
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| Zimbabwe | 119 | 103 | 87 | 92 |
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| Tonga | 105 | 106 | 97 | 88 |
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| Comoros | 105 | 106 |
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| Liberia | 158 | 127 | 122 | 126 |
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| West Bank and Gaza | ||||||
| Iran, Islamic Rep. | ||||||
| Seychelles | ||||||
| San Marino | ||||||
| Iraq | ||||||
| Vanuatu | ||||||
| Guam | ||||||
| New Caledonia | ||||||
| Haiti | ||||||
| Samoa | ||||||
| Tuvalu | ||||||
| Sao Tome and Principe | ||||||
| Bermuda | ||||||
| Sint Maarten (Dutch part) | ||||||
| Monaco | ||||||
| Isle of Man | ||||||
| Aruba | ||||||
| Palau | ||||||
| American Samoa | ||||||
| Solomon Islands | ||||||
| Guinea-Bissau | ||||||
| Somalia | ||||||
| Djibouti | ||||||
| Timor-Leste | ||||||
| Curacao | ||||||
| French Polynesia | ||||||
| South Sudan | ||||||
| Myanmar | ||||||
| Fiji | 82 | |||||
| Trinidad and Tobago | 52 | |||||
| Cayman Islands | ||||||
| Faeroe Islands | ||||||
| Kiribati | ||||||
| Turks and Caicos Islands | ||||||
| Eritrea | ||||||
| Libya | 23 | |||||
| St. Martin (French part) | ||||||
| Micronesia, Fed. Sts. | ||||||
| Korea, Dem. Rep. | ||||||
| Belize | 65 | |||||
| Northern Mariana Islands | ||||||
| Liechtenstein | ||||||
| Suriname | ||||||
| Andorra | ||||||
| Nigeria | ||||||
| Virgin Islands (U.S.) | ||||||
| Niger | ||||||
| Maldives | ||||||
| Marshall Islands | ||||||
| Greenland |