| Country name | 2008 | 2009 | 2010 | 2011 | ||
|---|---|---|---|---|---|---|
| Afghanistan | 38 | 33 | 27 | 25 |
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| Albania | 32 | 29 | 26 | 25 |
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| Algeria | 33 | 47 | 41 |
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| American Samoa | ||||||
| Andorra | ||||||
| Angola | 16 | 15 | 13 | 11 |
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| Antigua and Barbuda | 39 | 41 | 36 | 29 |
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| Argentina | 23 | 21 | 22 | 23 |
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| Armenia | 41 | 35 | 33 | 31 |
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| Aruba | ||||||
| Australia | 29 | 28 | 27 | 27 |
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| Austria | 23 | 21 | 22 | 23 |
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| Azerbaijan | 19 | 19 | 17 | 17 |
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| Bahamas, The | 27 | 26 | 25 | 27 |
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| Bahrain | 34 | 27 |
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| Bangladesh | 24 | 24 | 24 | 25 |
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| Barbados | 22 | 22 | 15 |
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| Belarus | 38 | 37 | 41 | 36 |
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| Belgium | 24 | 20 | 21 | 22 |
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| Belize | 27 | |||||
| Benin | 21 | 25 | 26 | 27 |
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| Bermuda | ||||||
| Bhutan | 40 | 41 | 52 | 59 |
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| Bolivia | 18 | 17 | 17 | 20 |
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| Bosnia and Herzegovina | 28 | 21 | 19 | 21 |
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| Botswana | 28 | 32 | 29 | 31 |
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| Brazil | 21 | 18 | 20 | 20 |
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| Brunei Darussalam | 14 | 18 | 16 | 13 |
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| Bulgaria | 38 | 29 | 23 | 23 |
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| Burkina Faso | ||||||
| Burundi | 19 | 19 | 18 | 18 |
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| Cambodia | 19 | 21 | 17 | 17 |
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| Cameroon | 18 | 16 | 16 | 20 |
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| Canada | 23 | 21 | 22 | 23 |
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| Cape Verde | 46 | 39 | 38 | 37 |
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| Cayman Islands | ||||||
| Central African Republic | 13 | 13 | 14 | 12 |
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| Chad | 25 | 33 | 33 |
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| Chile | 26 | 20 | 24 | 25 |
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| China | 44 | 48 | 48 | 48 |
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| Colombia | 23 | 22 | 22 | 23 |
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| Comoros | 14 | 12 |
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| Congo, Dem. Rep. | 22 | 18 | 24 | 21 |
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| Congo, Rep. | 18 | 23 | 21 | 25 |
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| Costa Rica | 28 | 16 | 20 | 21 |
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| Cote d'Ivoire | 10 | 11 | 14 | 16 |
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| Croatia | 30 | 25 | 22 | 21 |
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| Cuba | 15 | 10 | 12 |
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| Curacao | ||||||
| Cyprus | 24 | 17 | 18 |
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| Czech Republic | 29 | 24 | 25 | 25 |
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| Denmark | 22 | 17 | 17 | 18 |
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| Djibouti | ||||||
| Dominica | 21 | 20 | 22 | 22 |
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| Dominican Republic | 18 | 15 | 16 | 16 |
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| Ecuador | 28 | 23 | 26 | 26 |
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| Egypt, Arab Rep. | 22 | 19 | 19 | 20 |
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| El Salvador | 15 | 13 | 13 | 14 |
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| Equatorial Guinea | 29 | 58 | 54 | 35 |
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| Eritrea | ||||||
| Estonia | 30 | 18 | 20 | 25 |
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| Ethiopia | 20 | 22 | 25 | 26 |
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| Faeroe Islands | ||||||
| Fiji | 24 | |||||
| Finland | 22 | 19 | 19 | 21 |
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| France | 22 | 19 | 19 | 21 |
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| French Polynesia | ||||||
| Gabon | 24 | 27 | 27 | 27 |
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| Gambia, The | 15 | 20 | 21 | 19 |
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| Georgia | 26 | 13 | 22 | 26 |
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| Germany | 19 | 16 | 17 | 18 |
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| Ghana | 17 | 27 | 28 | 19 |
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| Greece | 24 | 19 | 18 | 16 |
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| Greenland | ||||||
| Grenada | 31 | 24 | 21 | 21 |
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| Guam | ||||||
| Guatemala | 16 | 13 | 14 | 14 |
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| Guinea | 18 | 11 | 11 | 18 |
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| Guinea-Bissau | ||||||
| Guyana | 24 | 27 | 25 | 24 |
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| Haiti | 29 | 27 | 25 | 28 |
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| Honduras | 36 | 20 | 23 | 27 |
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| Hong Kong SAR, China | 21 | 22 | 24 | 23 |
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| Hungary | 24 | 18 | 18 | 19 |
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| Iceland | 25 | 14 | 13 | 14 |
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| India | 36 | 36 | 36 | 37 |
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| Indonesia | 28 | 31 | 33 | 33 |
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| Iran, Islamic Rep. | ||||||
| Iraq | ||||||
| Ireland | 22 | 15 | 12 | 10 |
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| Isle of Man | ||||||
| Israel | 19 | 17 | 16 | 15 |
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| Italy | 22 | 19 | 20 | 20 |
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| Jamaica | 24 | 21 | 20 | 21 |
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| Japan | 23 | 20 | 20 | 20 |
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| Jordan | 30 | 26 | 24 | 25 |
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| Kazakhstan | 28 | 29 | 25 | 22 |
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| Kenya | 19 | 20 | 20 | 21 |
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| Kiribati | ||||||
| Korea, Dem. Rep. | ||||||
| Korea, Rep. | 31 | 26 | 30 | 29 |
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| Kosovo | 29 | 27 | 30 | 31 |
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| Kuwait | 18 | 18 | 19 | 18 |
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| Kyrgyz Republic | 29 | 27 | 27 | 25 |
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| Lao PDR | 32 | 30 | 24 | 27 |
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| Latvia | 31 | 20 | 22 | 26 |
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| Lebanon | 30 | 35 | 34 | 33 |
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| Lesotho | 28 | 28 | 28 | 35 |
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| Liberia | 34 | 19 | 26 | 25 |
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| Libya | 28 | |||||
| Liechtenstein | ||||||
| Lithuania | 27 | 11 | 17 | 19 |
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| Luxembourg | 22 | 16 | 19 | 21 |
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| Macao SAR, China | 31 | 19 | 13 | 13 |
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| Macedonia, FYR | 27 | 26 | 26 | 28 |
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| Madagascar | 40 | 33 |
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| Malawi | 26 | 26 | 26 | 16 |
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| Malaysia | 21 | 18 | 23 | 24 |
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| Maldives | ||||||
| Mali | ||||||
| Malta | 18 | 15 | 14 | 13 |
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| Marshall Islands | ||||||
| Mauritania | 35 | 31 | 27 | 25 |
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| Mauritius | 27 | 21 | 24 | 25 |
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| Mexico | 27 | 24 | 24 | 25 |
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| Micronesia, Fed. Sts. | ||||||
| Moldova | 39 | 23 | 24 | 24 |
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| Monaco | ||||||
| Mongolia | 44 | 34 | 41 | 63 |
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| Montenegro | 41 | 27 | 23 | 20 |
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| Morocco | 38 | 36 | 35 | 35 |
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| Mozambique | 16 | 21 | 25 | 24 |
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| Myanmar | ||||||
| Namibia | 29 | 28 | 26 | 27 |
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| Nepal | 30 | 32 | 38 | 33 |
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| Netherlands | 20 | 18 | 18 | 18 |
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| New Caledonia | ||||||
| New Zealand | 22 | 19 | 20 | 19 |
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| Nicaragua | 28 | 24 | 24 | 28 |
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| Niger | ||||||
| Nigeria | ||||||
| Northern Mariana Islands | ||||||
| Norway | 24 | 22 | 22 | 23 |
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| Oman | 30 | |||||
| Pakistan | 22 | 18 | 16 | 13 |
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| Palau | ||||||
| Panama | 28 | 26 | 28 | 28 |
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| Papua New Guinea | 20 | 20 | 18 | 16 |
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| Paraguay | 18 | 15 | 18 | 18 |
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| Peru | 27 | 21 | 25 | 25 |
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| Philippines | 19 | 17 | 21 | 22 |
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| Poland | 24 | 20 | 21 |
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| Portugal | 23 | 20 | 20 | 17 |
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| Puerto Rico | 12 | 11 | 9 |
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| Qatar | 39 | 39 |
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| Romania | 31 | 31 | 31 | 32 |
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| Russian Federation | 26 | 19 | 23 | 25 |
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| Rwanda | 23 | 22 | 21 | 21 |
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| Samoa | ||||||
| San Marino | ||||||
| Sao Tome and Principe | ||||||
| Saudi Arabia | 23 | 26 | 23 | 19 |
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| Senegal | 30 | 28 | 29 | 31 |
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| Serbia | 30 | 23 | 23 | 25 |
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| Seychelles | 24 | 22 |
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| Sierra Leone | 15 | 15 | 16 | 15 |
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| Singapore | 29 | 23 | 22 | 22 |
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| Sint Maarten (Dutch part) | ||||||
| Slovak Republic | 28 | 20 | 23 | 22 |
|
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| Slovenia | 32 | 23 | 23 | 22 |
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| Solomon Islands | ||||||
| Somalia | ||||||
| South Africa | 22 | 20 | 19 | 20 |
|
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| South Sudan | ||||||
| Spain | 29 | 24 | 23 | 22 |
|
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| Sri Lanka | 28 | 24 | 28 | 30 |
|
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| St. Kitts and Nevis | 42 | 44 | 37 | 32 |
|
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| St. Lucia | 31 | 28 | 32 | 34 |
|
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| St. Martin (French part) | ||||||
| St. Vincent and the Grenadines | 29 | 24 | 25 | 25 |
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| Sudan | 25 | 25 | 23 | 22 |
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| Suriname | ||||||
| Swaziland | 11 | 11 | 11 | 10 |
|
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| Sweden | 20 | 16 | 19 | 20 |
|
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| Switzerland | 22 | 19 | 20 | 21 |
|
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| Syrian Arab Republic | 32 | 30 | 19 |
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| Tajikistan | 21 | 22 | 23 | 22 |
|
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| Tanzania | 30 | 29 | 32 | 37 |
|
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| Thailand | 29 | 21 | 26 | 27 |
|
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| Timor-Leste | ||||||
| Togo | 17 | 18 | 19 | 19 |
|
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| Tonga | 21 | 25 | 30 | 38 |
|
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| Trinidad and Tobago | 11 | |||||
| Tunisia | 26 | 25 | 26 | 26 |
|
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| Turkey | 22 | 15 | 20 | 24 |
|
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| Turkmenistan | 32 | 47 | 53 | 54 |
|
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| Turks and Caicos Islands | ||||||
| Tuvalu | ||||||
| Uganda | 23 | 24 | 23 | 25 |
|
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| Ukraine | 28 | 17 | 20 | 21 |
|
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| United Arab Emirates | 23 | 24 | 25 |
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| United Kingdom | 17 | 14 | 15 | 15 |
|
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| United States | 18 | 14 | 15 | 15 |
|
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| Uruguay | 23 | 20 | 19 | 19 |
|
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| Uzbekistan | 25 | 26 | 26 | 23 |
|
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| Vanuatu | ||||||
| Venezuela, RB | 27 | 26 | 22 | 23 |
|
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| Vietnam | 40 | 38 | 39 | 35 |
|
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| Virgin Islands (U.S.) | ||||||
| West Bank and Gaza | ||||||
| Yemen, Rep. | 15 | 14 | 12 |
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| Zambia | 21 | 21 | 23 | 25 |
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| Zimbabwe | 5 | 15 | 24 | 23 |
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