| Country name | 2008 | 2009 | 2010 | 2011 | 2012 | ||
|---|---|---|---|---|---|---|---|
| Ireland | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
|
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| Japan | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
|
|
| Singapore | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
|
|
| Canada | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
|
|
| Norway | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 |
|
|
| Finland | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 |
|
|
| Belgium | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 |
|
|
| Belize | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
|
|
| Iceland | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
|
|
| Solomon Islands | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
|
|
| Palau | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
|
|
| United Kingdom | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
|
|
| Australia | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
|
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| Austria | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
|
|
| Hong Kong SAR, China | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
|
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| Jamaica | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
|
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| Denmark | 1.1 | 1.1 | 1.1 | 1.0 | 1.0 |
|
|
| Netherlands | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
|
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| Germany | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 |
|
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| Tunisia | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
|
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| New Zealand | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
|
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| Cyprus | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
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| Spain | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
|
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| Namibia | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
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| Maldives | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
|
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| Korea, Rep. | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
|
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| Kazakhstan | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
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| United States | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
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| Lithuania | 1.7 | 1.5 | 1.5 | 1.5 | 1.5 |
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| Sri Lanka | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
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| Mauritius | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
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| China | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
|
|
| Botswana | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
|
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| Tajikistan | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
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| Italy | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
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| Mexico | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
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| Morocco | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
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| Fiji | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
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| Bolivia | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
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| France | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 |
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| Ghana | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 |
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| Armenia | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 |
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| South Africa | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Greece | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Hungary | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Seychelles | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Slovenia | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Macedonia, FYR | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Montenegro | 2.0 | 2.0 | 2.0 | 2.0 | 1.4 |
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| Marshall Islands | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Gambia, The | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Kosovo | 2.0 | 2.0 | 2.0 | 2.0 |
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| St. Lucia | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Sudan | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Madagascar | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Albania | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Portugal | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Russian Federation | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Sweden | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Afghanistan | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Nigeria | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Swaziland | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Luxembourg | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
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| Uruguay | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
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| Uganda | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 |
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| Cote d'Ivoire | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 |
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| Nicaragua | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 |
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| Malaysia | 2.3 | 2.3 | 2.3 | 1.5 | 1.5 |
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| Bahrain | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
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| Puerto Rico | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
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| Samoa | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
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| Panama | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
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| Brunei Darussalam | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
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| Algeria | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
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| Vanuatu | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 |
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| Lesotho | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 |
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| Malawi | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 |
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| Sierra Leone | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 |
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| Thailand | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 |
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| Tonga | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 |
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| Zambia | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 |
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| Serbia | 2.7 | 2.7 | 2.7 | 2.7 | 2.0 |
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| Azerbaijan | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 |
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| Moldova | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
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| Saudi Arabia | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
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| Qatar | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
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| Argentina | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
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| Pakistan | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
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| Ukraine | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 |
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| Latvia | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Liberia | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Papua New Guinea | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Senegal | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Yemen, Rep. | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Estonia | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Togo | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Switzerland | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Tanzania | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Colombia | 3.0 | 3.0 | 3.0 | 1.3 | 1.3 |
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| Antigua and Barbuda | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Ethiopia | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Rwanda | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Guyana | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Poland | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Guatemala | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
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| Croatia | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 |
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| Peru | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 |
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| Chile | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 |
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| Cameroon | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 |
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| United Arab Emirates | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 |
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| Zimbabwe | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
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| Bosnia and Herzegovina | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
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| Romania | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
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| Georgia | 3.3 | 3.3 | 2.0 | 2.0 | 2.0 |
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| Bulgaria | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
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| Congo, Rep. | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
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| Turkey | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 |
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| Dominican Republic | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
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| Costa Rica | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
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| Mali | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 |
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| Guinea | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 |
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| Honduras | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 |
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| Paraguay | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 |
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| Oman | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Uzbekistan | 4.0 | 4.0 | 4.0 | 4.0 | 2.0 |
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| Trinidad and Tobago | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Venezuela, RB | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Slovak Republic | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Lebanon | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Dominica | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Mongolia | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Israel | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Chad | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Burkina Faso | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Bangladesh | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Benin | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Brazil | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Kyrgyz Republic | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| El Salvador | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
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| Syrian Arab Republic | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 |
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| Egypt, Arab Rep. | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 |
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| Kuwait | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 |
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| India | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
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| Jordan | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
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| Iran, Islamic Rep. | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
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| Kenya | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
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| Central African Republic | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 |
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| Suriname | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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| Burundi | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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| Djibouti | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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| Gabon | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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| Niger | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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| Bahamas, The | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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| Vietnam | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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| Nepal | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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| Mozambique | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
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| Congo, Dem. Rep. | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 |
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| Micronesia, Fed. Sts. | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 |
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| Ecuador | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 |
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| Indonesia | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
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| Haiti | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 |
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| Philippines | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 |
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| Belarus | 5.8 | 5.8 | 3.0 | 3.0 | 3.0 |
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| Cambodia | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 |
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| Sao Tome and Principe | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 |
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| Angola | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 |
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| Czech Republic | 6.5 | 6.5 | 3.2 | 3.2 | 3.2 |
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| Mauritania | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 |
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| Bhutan | |||||||
| Equatorial Guinea | |||||||
| Cape Verde | |||||||
| New Caledonia | |||||||
| Northern Mariana Islands | |||||||
| Somalia | |||||||
| Turkmenistan | |||||||
| Sint Maarten (Dutch part) | |||||||
| Barbados | 1.8 | 1.8 |
|
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| South Sudan | |||||||
| Andorra | |||||||
| Faeroe Islands | |||||||
| Kiribati | |||||||
| French Polynesia | |||||||
| Tuvalu | |||||||
| St. Kitts and Nevis | |||||||
| Macao SAR, China | |||||||
| Greenland | |||||||
| Libya | |||||||
| St. Martin (French part) | |||||||
| West Bank and Gaza | |||||||
| St. Vincent and the Grenadines | |||||||
| Eritrea | |||||||
| Grenada | |||||||
| Malta | 3.0 | 3.0 |
|
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| Guam | |||||||
| Korea, Dem. Rep. | |||||||
| Curacao | |||||||
| Turks and Caicos Islands | |||||||
| Cuba | |||||||
| Myanmar | |||||||
| San Marino | |||||||
| Bermuda | |||||||
| Guinea-Bissau | |||||||
| Lao PDR | |||||||
| Comoros | |||||||
| Monaco | |||||||
| Iraq | |||||||
| Aruba | |||||||
| Isle of Man | |||||||
| Virgin Islands (U.S.) | |||||||
| Timor-Leste | |||||||
| Liechtenstein | |||||||
| Cayman Islands | |||||||
| American Samoa |