| Country name | 2008 | 2009 | 2010 | 2011 | 2012 | ||
|---|---|---|---|---|---|---|---|
| Macao SAR, China | 0.0 | 0.0 | 0.0 | 0.0 |
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| Hong Kong SAR, China | 0.0 | 0.0 | 0.0 | 0.0 |
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| Singapore | 0.4 | 0.4 | 0.0 |
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| Brunei Darussalam | 0.4 | 0.4 |
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| New Zealand | 1.3 | 1.1 | 1.1 |
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| Malaysia | 2.0 | 7.6 |
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| Bosnia and Herzegovina | 2.9 | 7.9 | 2.9 | 2.9 |
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| United States | 3.2 | 3.3 | 4.2 | 4.2 |
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| Haiti | 3.7 | 3.7 | 5.4 |
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| Australia | 4.0 | 1.2 | 1.1 | 1.1 |
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| Georgia | 4.0 | 4.0 | 4.0 | 4.0 |
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| Saudi Arabia | 4.2 | 5.6 |
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| Kuwait | 4.2 | 5.3 |
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| Mauritius | 4.2 | 0.6 | 0.6 | 0.6 |
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| South Africa | 4.7 | 6.0 | 5.9 | 4.8 |
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| Namibia | 4.7 | 6.3 | 5.9 | 4.8 |
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| Swaziland | 4.7 | 6.3 | 5.9 | 4.8 |
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| Lesotho | 4.8 | 6.3 | 5.9 | 4.8 |
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| Botswana | 4.8 | 6.4 | 5.9 | 4.8 |
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| United Arab Emirates | 4.8 | 7.2 |
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| Armenia | 5.0 | ||||||
| Mongolia | 5.0 | 5.0 | 5.1 |
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| Afghanistan | 5.2 | ||||||
| Albania | 5.4 | 5.1 | 5.1 |
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| Qatar | 5.5 | 6.4 |
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| Bahrain | 5.9 | 6.8 | 6.7 |
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| Ukraine | 6.0 | 5.8 | 6.2 | 5.8 |
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| Croatia | 6.0 | 6.3 | 6.0 | 6.0 |
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| Chile | 6.1 | 6.0 | 6.0 |
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| Kyrgyz Republic | 6.3 | 6.3 | 6.2 | 6.1 |
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| Moldova | 6.4 | 6.1 |
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| Montenegro | 6.7 | 9.2 | 6.7 | 6.8 |
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| Canada | 6.8 | 6.8 | 1.8 |
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| Myanmar | 6.9 | ||||||
| Guatemala | 7.0 | 7.0 | 7.0 | 7.0 |
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| Oman | 7.1 | 8.9 |
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| Philippines | 7.3 | 7.3 | 7.3 |
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| Macedonia, FYR | 7.5 | 7.9 | 7.4 | 7.4 |
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| Honduras | 7.5 | 7.4 |
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| Comoros | 7.7 | 7.7 | 7.7 |
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| Kazakhstan | 7.9 | 7.8 | 8.0 |
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| Peru | 8.0 | 4.9 | 4.9 | 3.0 |
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| French Polynesia | 8.0 | 8.0 | 8.0 |
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| Cuba | 8.1 | 8.3 | 8.3 | 8.3 |
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| El Salvador | 8.4 | 8.4 | 8.3 |
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| Uruguay | 8.4 | 8.4 | 8.4 | 8.4 |
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| Paraguay | 8.6 | 8.6 | 8.6 | 8.6 |
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| Argentina | 8.6 | 9.4 | 8.7 | 8.7 |
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| Russian Federation | 8.7 | 8.8 | 8.1 | 8.1 |
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| Brazil | 8.7 | 8.8 | 8.8 | 8.8 |
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| Belarus | 9.0 | 8.9 | 8.1 | 8.1 |
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| Burundi | 9.1 | 15.1 | 15.3 | 15.1 |
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| Fiji | 9.3 | 18.3 | 10.1 | 10.5 |
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| Bolivia | 9.4 | 11.0 | 11.0 | 11.0 |
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| St. Kitts and Nevis | 9.5 | 9.8 | 9.5 | 9.5 |
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| Azerbaijan | 9.8 | 9.7 | 9.7 |
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| Cape Verde | 9.8 | 9.7 | 9.8 | 9.8 |
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| Angola | 10.2 | 10.2 |
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| Dominican Republic | 10.8 | 9.6 |
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| Papua New Guinea | 11.0 | 9.4 |
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| Israel | 11.1 | 14.6 |
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| China | 11.1 | 11.1 | 11.2 | 11.1 |
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| Ireland | 11.1 | 9.9 | 4.9 | 4.9 |
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| Hungary | 11.1 | 9.9 | 4.9 | 4.9 |
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| Italy | 11.1 | 9.9 | 4.9 | 4.9 |
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| United Kingdom | 11.1 | 9.9 | 4.9 | 4.9 |
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| Spain | 11.1 | 9.9 | 4.9 | 4.9 |
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| Slovak Republic | 11.1 | 9.9 | 4.9 | 4.9 |
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| Netherlands | 11.1 | 9.9 | 4.9 | 4.9 |
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| Poland | 11.1 | 9.9 | 4.9 | 4.9 |
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| Portugal | 11.1 | 9.9 | 4.9 | 4.9 |
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| Slovenia | 11.1 | 9.9 | 4.9 | 4.9 |
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| Romania | 11.1 | 9.9 | 4.9 | 4.9 |
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| Lithuania | 11.1 | 9.9 | 4.9 | 4.9 |
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| Luxembourg | 11.1 | 9.9 | 4.9 | 4.9 |
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| Malta | 11.1 | 9.9 | 4.9 | 4.9 |
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| Sweden | 11.1 | 9.9 | 4.9 | 4.9 |
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| Latvia | 11.1 | 9.9 | 4.9 | 4.9 |
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| Estonia | 11.1 | 9.9 | 4.9 | 4.9 |
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| Denmark | 11.1 | 9.9 | 4.9 | 4.9 |
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| Finland | 11.1 | 9.9 | 4.9 | 4.9 |
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| France | 11.1 | 9.9 | 4.9 | 4.9 |
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| Greece | 11.1 | 9.9 | 4.9 | 4.9 |
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| Czech Republic | 11.1 | 9.9 | 4.9 | 4.9 |
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| Cyprus | 11.1 | 9.9 | 4.9 | 4.9 |
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| Belgium | 11.1 | 9.9 | 4.9 | 4.9 |
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| Germany | 11.1 | 9.9 | 4.9 | 4.9 |
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| Bulgaria | 11.1 | 9.9 | 4.9 | 4.9 |
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| Austria | 11.1 | 9.9 | 4.9 | 4.9 |
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| Bermuda | 11.2 | 11.2 | 11.2 | 11.2 |
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| Pakistan | 11.5 | 12.8 |
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| Panama | 11.6 | 11.4 |
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| Guinea | 11.8 | 11.8 | 11.8 |
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| Burkina Faso | 11.9 | 11.9 | 11.9 | 11.9 |
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| Guinea-Bissau | 11.9 | 11.9 | 11.9 | 11.9 |
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| Niger | 11.9 | 11.9 | 11.9 | 11.9 |
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| Mali | 11.9 | 11.9 | 11.9 | 11.9 |
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| Cote d'Ivoire | 11.9 | 11.9 | 11.9 | 11.9 |
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| Benin | 11.9 | 11.9 | 11.9 | 11.9 |
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| Senegal | 11.9 | 11.9 | 11.9 | 11.9 |
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| Togo | 11.9 | 11.9 | 11.9 | 11.9 |
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| Ecuador | 12.0 | 13.6 | 13.5 | 13.5 |
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| Antigua and Barbuda | 12.0 | 12.0 |
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| Congo, Dem. Rep. | 12.0 | 12.0 |
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| Japan | 12.1 | 9.3 | 5.2 | 5.0 |
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| Nigeria | 12.4 | 12.3 | 12.3 |
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| Malawi | 12.7 | 12.7 | 14.5 | 14.9 |
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| Madagascar | 12.8 | 12.7 | 12.7 |
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| Thailand | 13.6 | 15.7 |
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| Solomon Islands | 13.7 | 9.5 | 9.5 |
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| Venezuela, RB | 13.8 | 13.8 | 13.0 | 13.8 |
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| Colombia | 13.9 | 13.8 | 14.0 | 11.8 |
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| Vietnam | 14.0 | 12.1 |
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| Rwanda | 14.2 | 15.1 | 15.3 | 15.1 |
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| Cambodia | 14.4 | ||||||
| Jordan | 14.4 | 13.9 |
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| Trinidad and Tobago | 14.4 | ||||||
| Grenada | 14.4 | 14.9 | 14.9 |
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| Uzbekistan | 14.6 | 14.6 |
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| Ghana | 14.7 | 14.7 |
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| Lao PDR | 14.7 | ||||||
| Belize | 14.7 | 15.4 | 15.4 | 14.6 |
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| Vanuatu | 14.8 | 24.0 |
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| Tanzania | 15.1 | 15.1 | 15.3 | 15.2 |
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| Kenya | 15.1 | 15.5 | 15.3 | 15.2 |
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| Uganda | 15.1 | 15.1 | 15.3 | 15.2 |
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| Bangladesh | 15.6 | ||||||
| Mexico | 16.1 | 14.8 | 13.7 |
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| Zambia | 16.2 | 16.4 | 16.3 |
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| Guyana | 17.0 | 17.0 | 17.0 |
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| Ethiopia | 17.1 | 17.0 | 17.0 | 17.0 |
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| Gabon | 18.9 | 18.9 |
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| Gambia, The | 19.1 | 19.0 | 14.9 |
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| Algeria | 19.5 | 19.5 |
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| Maldives | 19.5 | 19.5 |
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| Iran, Islamic Rep. | 20.3 | 21.2 |
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| Switzerland | 21.6 | 12.6 | 0.0 | 0.0 |
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| India | 22.9 | 22.7 |
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| Iceland | 24.3 | 18.8 | 3.7 | 3.7 |
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| Sudan | 26.4 | 26.4 | 25.6 | 25.6 |
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| Turkey | 28.1 | 29.1 | 28.9 | 27.9 |
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| Tunisia | 29.9 | ||||||
| Morocco | 32.5 | 28.4 |
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| Egypt, Arab Rep. | 41.2 | 41.1 |
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| Norway | 42.2 | 26.6 | 3.3 | 3.3 |
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| Northern Mariana Islands | |||||||
| Palau | 2.7 | 2.7 |
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| Iraq | |||||||
| Sierra Leone | 12.6 | ||||||
| Curacao | |||||||
| St. Vincent and the Grenadines | |||||||
| Congo, Rep. | |||||||
| Faeroe Islands | |||||||
| Mauritania | |||||||
| Sint Maarten (Dutch part) | |||||||
| Eritrea | |||||||
| West Bank and Gaza | |||||||
| South Sudan | |||||||
| Marshall Islands | |||||||
| Cayman Islands | |||||||
| Suriname | 15.1 | ||||||
| Cameroon | 18.4 | 18.2 |
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| Tonga | 13.0 | 13.0 | 13.0 |
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| Puerto Rico | |||||||
| Seychelles | |||||||
| Liberia | |||||||
| Guam | |||||||
| Kiribati | |||||||
| Korea, Dem. Rep. | |||||||
| Kosovo | |||||||
| Libya | |||||||
| Somalia | |||||||
| Sri Lanka | 17.6 | 16.1 | 14.8 |
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| St. Lucia | |||||||
| Barbados | |||||||
| Nepal | 11.3 | 10.9 | 11.0 |
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| Costa Rica | 8.0 | 8.0 |
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| Nicaragua | 7.6 | 7.7 |
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| St. Martin (French part) | |||||||
| Monaco | |||||||
| New Caledonia | |||||||
| Timor-Leste | |||||||
| Bahamas, The | 28.1 | 28.1 |
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| Syrian Arab Republic | 15.4 | 15.4 |
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| Turks and Caicos Islands | |||||||
| Greenland | |||||||
| Tajikistan | 8.7 | ||||||
| Andorra | |||||||
| Djibouti | 17.6 | 17.4 |
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| Mozambique | 11.2 | 11.2 |
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| Liechtenstein | |||||||
| Dominica | 15.9 | ||||||
| Micronesia, Fed. Sts. | |||||||
| Equatorial Guinea | |||||||
| Indonesia | 6.6 | 4.7 | 4.7 |
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| Turkmenistan | |||||||
| Aruba | |||||||
| Tuvalu | 6.0 | ||||||
| Sao Tome and Principe | |||||||
| Bhutan | |||||||
| Jamaica | 13.5 | 13.5 |
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| Korea, Rep. | 28.1 | 28.6 |
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| American Samoa | |||||||
| Serbia | |||||||
| Samoa | |||||||
| San Marino | |||||||
| Isle of Man | |||||||
| Chad | 19.0 | 19.0 |
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| Virgin Islands (U.S.) | |||||||
| Central African Republic | |||||||
| Yemen, Rep. | 10.7 | 10.7 |
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| Lebanon | |||||||
| Zimbabwe |