| Country name | 2008 | 2009 | 2010 | 2011 | 2012 | ||
|---|---|---|---|---|---|---|---|
| Afghanistan | 10 | 10 | 10 | 10 | 10 |
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| Albania | 8 | 8 | 8 | 8 | 8 |
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| Algeria | 9 | 9 | 9 | 9 | 9 |
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| American Samoa | |||||||
| Andorra | |||||||
| Angola | 8 | 8 | 8 | 8 | 8 |
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| Antigua and Barbuda | 6 | 6 | 6 | 6 | 8 |
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| Argentina | 7 | 7 | 7 | 7 | 10 |
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| Armenia | 8 | 9 | 8 | 8 | 8 |
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| Aruba | |||||||
| Australia | 7 | 7 | 7 | 7 | 7 |
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| Austria | 5 | 5 | 5 | 5 | 5 |
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| Azerbaijan | 10 | 10 | 10 | 10 | 10 |
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| Bahamas, The | 6 | 6 | 6 | 6 | 6 |
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| Bahrain | 7 | 7 | 7 | 7 | 7 |
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| Bangladesh | 8 | 8 | 8 | 8 | 8 |
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| Barbados | 6 | 6 |
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| Belarus | 10 | 10 | 10 | 10 | 10 |
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| Belgium | 5 | 5 | 5 | 5 | 5 |
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| Belize | 7 | 7 | 7 | 7 | 7 |
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| Benin | 8 | 8 | 8 | 8 | 8 |
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| Bermuda | |||||||
| Bhutan | 12 | 12 | 12 | 12 | 12 |
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| Bolivia | 7 | 7 | 7 | 7 | 7 |
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| Bosnia and Herzegovina | 9 | 9 | 9 | 9 | 9 |
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| Botswana | 8 | 8 | 8 | 8 | 7 |
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| Brazil | 8 | 8 | 8 | 8 | 8 |
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| Brunei Darussalam | 6 | 6 | 6 | 6 | 6 |
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| Bulgaria | 6 | 6 | 6 | 6 | 6 |
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| Burkina Faso | 11 | 11 | 10 | 10 | 10 |
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| Burundi | 11 | 11 | 11 | 11 | 11 |
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| Cambodia | 11 | 11 | 10 | 10 | 10 |
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| Cameroon | 11 | 12 | 12 | 12 | 12 |
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| Canada | 4 | 4 | 4 | 4 | 4 |
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| Cape Verde | 5 | 5 | 5 | 5 | 5 |
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| Cayman Islands | |||||||
| Central African Republic | 17 | 17 | 17 | 17 | 17 |
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| Chad | 10 | 11 | 11 | 11 | 11 |
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| Chile | 6 | 6 | 6 | 6 | 6 |
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| China | 6 | 5 | 5 | 5 | 5 |
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| Colombia | 6 | 6 | 6 | 6 | 6 |
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| Comoros | 10 | 10 | 10 | 10 | 10 |
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| Congo, Dem. Rep. | 9 | 9 | 9 | 9 | 9 |
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| Congo, Rep. | 10 | 10 | 10 | 10 | 10 |
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| Costa Rica | 6 | 6 | 6 | 6 | 6 |
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| Cote d'Ivoire | 10 | 10 | 10 | 10 | 10 |
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| Croatia | 8 | 8 | 8 | 8 | 8 |
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| Cuba | |||||||
| Curacao | |||||||
| Cyprus | 7 | 7 | 7 | 7 | 7 |
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| Czech Republic | 7 | 7 | 7 | 7 | 7 |
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| Denmark | 3 | 3 | 3 | 3 | 3 |
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| Djibouti | 5 | 5 | 5 | 5 | 5 |
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| Dominica | 8 | 8 | 8 | 8 | 8 |
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| Dominican Republic | 7 | 7 | 7 | 7 | 7 |
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| Ecuador | 7 | 7 | 7 | 7 | 7 |
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| Egypt, Arab Rep. | 9 | 9 | 9 | 9 | 9 |
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| El Salvador | 8 | 8 | 8 | 8 | 8 |
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| Equatorial Guinea | 7 | 7 | 7 | 7 | 7 |
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| Eritrea | 12 | 12 | 12 | 12 | 12 |
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| Estonia | 4 | 4 | 4 | 4 | 4 |
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| Ethiopia | 9 | 9 | 9 | 9 | 9 |
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| Faeroe Islands | |||||||
| Fiji | 10 | 10 | 10 | 10 | 10 |
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| Finland | 5 | 5 | 5 | 5 | 5 |
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| France | 2 | 2 | 2 | 2 | 2 |
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| French Polynesia | |||||||
| Gabon | 8 | 8 | 8 | 8 | 8 |
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| Gambia, The | 7 | 7 | 7 | 7 | 7 |
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| Georgia | 7 | 4 | 4 | 4 | 4 |
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| Germany | 5 | 5 | 5 | 5 | 5 |
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| Ghana | 7 | 7 | 7 | 7 | 7 |
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| Greece | 6 | 6 | 6 | 6 | 6 |
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| Greenland | |||||||
| Grenada | 7 | 7 | 7 | 7 | 7 |
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| Guam | |||||||
| Guatemala | 8 | 8 | 8 | 8 | 8 |
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| Guinea | 9 | 9 | 9 | 9 | 9 |
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| Guinea-Bissau | 6 | 6 | 6 | 6 | 6 |
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| Guyana | 8 | 8 | 8 | 8 | 8 |
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| Haiti | 10 | 10 | 10 | 10 | 10 |
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| Honduras | 8 | 8 | 8 | 8 | 8 |
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| Hong Kong SAR, China | 4 | 4 | 4 | 4 | 4 |
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| Hungary | 7 | 7 | 7 | 7 | 7 |
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| Iceland | 5 | 5 | 5 | 5 | 5 |
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| India | 11 | 11 | 11 | 11 | 11 |
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| Indonesia | 7 | 7 | 7 | 7 | 7 |
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| Iran, Islamic Rep. | 8 | 8 | 8 | 8 | 8 |
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| Iraq | 10 | 10 | 10 | 10 | 10 |
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| Ireland | 4 | 4 | 4 | 4 | 4 |
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| Isle of Man | |||||||
| Israel | 4 | 4 | 4 | 4 | 4 |
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| Italy | 4 | 4 | 4 | 4 | 4 |
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| Jamaica | 7 | 7 | 7 | 7 | 7 |
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| Japan | 5 | 5 | 5 | 5 | 5 |
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| Jordan | 7 | 7 | 7 | 7 | 7 |
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| Kazakhstan | 13 | 13 | 12 | 12 | 12 |
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| Kenya | 7 | 7 | 7 | 7 | 7 |
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| Kiribati | 7 | 7 | 7 | 7 | 7 |
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| Korea, Dem. Rep. | |||||||
| Korea, Rep. | 6 | 3 | 3 | 3 | 3 |
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| Kosovo | 8 | 8 | 8 | 8 |
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| Kuwait | 10 | 10 | 10 | 10 | 10 |
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| Kyrgyz Republic | 16 | 10 | 10 | 10 | 10 |
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| Lao PDR | 10 | 10 | 10 | 10 | 10 |
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| Latvia | 6 | 6 | 6 | 6 | 6 |
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| Lebanon | 7 | 7 | 7 | 7 | 7 |
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| Lesotho | 8 | 8 | 8 | 8 | 7 |
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| Liberia | 11 | 11 | 11 | 11 | 11 |
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| Libya | |||||||
| Liechtenstein | |||||||
| Lithuania | 6 | 6 | 6 | 6 | 6 |
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| Luxembourg | 4 | 4 | 4 | 4 | 4 |
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| Macao SAR, China | |||||||
| Macedonia, FYR | 6 | 6 | 6 | 6 | 6 |
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| Madagascar | 9 | 9 | 9 | 9 | 9 |
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| Malawi | 9 | 9 | 9 | 9 | 9 |
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| Malaysia | 6 | 6 | 6 | 6 | 6 |
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| Maldives | 9 | 9 | 9 | 9 | 9 |
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| Mali | 10 | 9 | 9 | 9 | 9 |
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| Malta | 7 | 7 |
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| Marshall Islands | 5 | 5 | 5 | 5 | 5 |
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| Mauritania | 8 | 8 | 8 | 8 | 8 |
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| Mauritius | 6 | 6 | 6 | 6 | 6 |
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| Mexico | 4 | 4 | 4 | 4 | 4 |
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| Micronesia, Fed. Sts. | 6 | 6 | 6 | 6 | 6 |
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| Moldova | 7 | 7 | 7 | 7 | 7 |
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| Monaco | |||||||
| Mongolia | 11 | 11 | 11 | 11 | 11 |
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| Montenegro | 7 | 7 | 6 | 6 | 6 |
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| Morocco | 8 | 8 | 8 | 8 | 8 |
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| Mozambique | 10 | 10 | 10 | 10 | 10 |
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| Myanmar | |||||||
| Namibia | 7 | 7 | 7 | 7 | 7 |
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| Nepal | 11 | 11 | 11 | 11 | 11 |
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| Netherlands | 5 | 5 | 5 | 5 | 4 |
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| New Caledonia | |||||||
| New Zealand | 6 | 6 | 6 | 6 | 6 |
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| Nicaragua | 6 | 6 | 6 | 6 | 6 |
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| Niger | 11 | 11 | 11 | 11 | 11 |
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| Nigeria | 10 | 10 | 10 | 10 | 10 |
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| Northern Mariana Islands | |||||||
| Norway | 5 | 5 | 5 | 5 | 5 |
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| Oman | 8 | 8 | 8 | 8 | 8 |
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| Pakistan | 8 | 8 | 8 | 8 | 8 |
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| Palau | 9 | 9 | 9 | 9 | 9 |
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| Panama | 3 | 3 | 3 | 3 | 3 |
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| Papua New Guinea | 9 | 9 | 9 | 9 | 9 |
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| Paraguay | 10 | 10 | 10 | 10 | 10 |
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| Peru | 8 | 8 | 8 | 8 | 8 |
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| Philippines | 8 | 8 | 8 | 8 | 8 |
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| Poland | 5 | 5 | 5 | 5 | 5 |
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| Portugal | 5 | 5 | 5 | 5 | 5 |
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| Puerto Rico | 9 | 9 | 9 | 9 | 9 |
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| Qatar | 7 | 7 | 7 | 7 | 7 |
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| Romania | 6 | 6 | 6 | 6 | 6 |
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| Russian Federation | 12 | 12 | 12 | 11 | 11 |
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| Rwanda | 10 | 9 | 8 | 8 | 8 |
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| Samoa | 6 | 6 | 6 | 6 | 6 |
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| San Marino | |||||||
| Sao Tome and Principe | 7 | 7 | 7 | 7 | 7 |
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| Saudi Arabia | 5 | 5 | 5 | 5 | 5 |
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| Senegal | 5 | 5 | 5 | 5 | 5 |
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| Serbia | 7 | 7 | 7 | 7 | 7 |
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| Seychelles | 5 | 5 | 5 | 5 | 5 |
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| Sierra Leone | 7 | 7 | 7 | 7 | 7 |
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| Singapore | 4 | 4 | 4 | 4 | 4 |
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| Sint Maarten (Dutch part) | |||||||
| Slovak Republic | 7 | 7 | 7 | 7 | 7 |
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| Slovenia | 8 | 8 | 8 | 8 | 8 |
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| Solomon Islands | 5 | 5 | 5 | 5 | 5 |
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| Somalia | |||||||
| South Africa | 8 | 8 | 8 | 8 | 7 |
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| South Sudan | |||||||
| Spain | 7 | 7 | 6 | 6 | 6 |
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| Sri Lanka | 6 | 6 | 6 | 6 | 6 |
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| St. Kitts and Nevis | 7 | 7 | 7 | 7 | 7 |
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| St. Lucia | 9 | 9 | 9 | 9 | 9 |
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| St. Martin (French part) | |||||||
| St. Vincent and the Grenadines | 5 | 5 | 5 | 5 | 5 |
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| Sudan | 7 | 7 | 7 | 7 | 7 |
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| Suriname | 6 | 6 | 6 | 6 | 6 |
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| Swaziland | 9 | 9 | 9 | 9 | 8 |
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| Sweden | 3 | 3 | 3 | 3 | 3 |
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| Switzerland | 5 | 5 | 5 | 5 | 5 |
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| Syrian Arab Republic | 9 | 9 | 9 | 9 | 9 |
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| Tajikistan | 12 | 12 | 11 | 11 | 11 |
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| Tanzania | 10 | 10 | 10 | 9 | 10 |
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| Thailand | 5 | 5 | 5 | 5 | 5 |
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| Timor-Leste | 7 | 7 | 7 | 7 | 7 |
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| Togo | 8 | 8 | 8 | 8 | 8 |
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| Tonga | 6 | 6 | 6 | 6 | 6 |
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| Trinidad and Tobago | 10 | 10 | 10 | 10 | 10 |
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| Tunisia | 7 | 7 | 7 | 7 | 7 |
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| Turkey | 7 | 7 | 7 | 7 | 7 |
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| Turkmenistan | |||||||
| Turks and Caicos Islands | |||||||
| Tuvalu | |||||||
| Uganda | 9 | 9 | 9 | 9 | 9 |
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| Ukraine | 8 | 8 | 8 | 8 | 8 |
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| United Arab Emirates | 7 | 5 | 5 | 5 | 5 |
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| United Kingdom | 4 | 4 | 4 | 4 | 4 |
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| United States | 5 | 5 | 5 | 5 | 5 |
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| Uruguay | 8 | 8 | 8 | 8 | 8 |
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| Uzbekistan | 15 | 15 | 15 | 15 | 14 |
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| Vanuatu | 8 | 8 | 8 | 8 | 8 |
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| Venezuela, RB | 9 | 9 | 9 | 9 | 9 |
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| Vietnam | 8 | 8 | 8 | 8 | 8 |
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| Virgin Islands (U.S.) | |||||||
| West Bank and Gaza | 6 | 6 | 6 | 6 | 6 |
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| Yemen, Rep. | 9 | 9 | 9 | 9 | 9 |
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| Zambia | 9 | 9 | 8 | 8 | 8 |
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| Zimbabwe | 9 | 9 | 9 | 9 | 8 |
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