| Country name | 2008 | 2009 | 2010 | 2011 | ||
|---|---|---|---|---|---|---|
| Afghanistan | ||||||
| Albania | 24.4 | 28.1 | 25.1 | 25.0 |
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| Algeria | 1.3 | 1.2 | 1.5 | 1.0 |
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| American Samoa | ||||||
| Andorra | ||||||
| Angola | 1.0 | 0.6 | 0.8 | 0.7 |
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| Antigua and Barbuda | 6.2 | 7.6 | 7.6 | 7.8 |
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| Argentina | 8.8 | 11.7 | 9.3 | 8.2 |
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| Armenia | 8.1 | 10.3 | 11.1 | 11.4 |
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| Aruba | 4.0 | 8.5 | 12.9 | 4.3 |
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| Australia | 10.2 | 10.9 | 11.1 | 11.1 |
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| Austria | 6.4 | 7.4 | 6.6 | 5.9 |
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| Azerbaijan | 4.1 | 5.0 | 8.4 | 11.3 |
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| Bahamas, The | 10.0 | 10.3 | 9.8 | 8.1 |
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| Bahrain | 4.3 | 5.3 | 5.2 | 6.5 |
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| Bangladesh | 2.9 | 2.8 | 2.8 | 2.0 |
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| Barbados | 10.9 | 14.1 | 15.7 |
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| Belarus | 2.1 | 2.5 | 2.0 | 1.6 |
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| Belgium | 5.1 | 6.7 | 5.8 | 5.7 |
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| Belize | 4.6 | 5.5 | 4.8 | 3.9 |
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| Benin | 4.3 | 3.9 | 4.0 |
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| Bermuda | 20.9 | 19.9 | 20.8 | 21.9 |
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| Bhutan | 8.7 | 5.0 | 4.6 | 4.5 |
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| Bolivia | 6.6 | 7.5 | 6.8 | 4.7 |
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| Bosnia and Herzegovina | 3.1 | 3.4 | 2.9 | 2.3 |
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| Botswana | 4.7 | 4.7 | 0.5 |
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| Brazil | 6.0 | 7.4 | 7.9 | 8.3 |
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| Brunei Darussalam | 10.8 | 12.8 |
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| Bulgaria | 6.3 | 7.2 | 4.9 | 4.2 |
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| Burkina Faso | 4.7 | 5.7 | 4.3 |
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| Burundi | 25.4 | 13.7 | 5.8 | 6.4 |
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| Cambodia | 3.0 | 3.0 | 4.2 | 4.1 |
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| Cameroon | 7.0 | 7.6 | 4.2 |
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| Canada | 6.7 | 7.3 | 7.4 | 7.2 |
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| Cape Verde | 12.1 | 13.4 | 12.4 | 10.3 |
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| Cayman Islands | ||||||
| Central African Republic | ||||||
| Chad | ||||||
| Chile | 2.6 | 3.0 | 2.5 | 2.3 |
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| China | 3.6 | 4.5 | 4.2 | 4.4 |
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| Colombia | 5.2 | 6.0 | 5.1 | 4.6 |
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| Comoros | ||||||
| Congo, Dem. Rep. | ||||||
| Congo, Rep. | ||||||
| Costa Rica | 5.5 | 4.9 | 4.6 | 3.9 |
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| Cote d'Ivoire | 6.3 | 6.1 | 5.3 |
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| Croatia | 3.3 | 4.2 | 3.7 | 3.5 |
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| Cuba | ||||||
| Curacao | ||||||
| Cyprus | 13.3 | 15.3 | 13.3 | 13.7 |
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| Czech Republic | 3.6 | 4.0 | 3.4 | 3.2 |
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| Denmark | 5.5 | 6.7 | 6.5 | 6.2 |
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| Djibouti | 2.2 | 3.1 | 4.3 | 5.1 |
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| Dominica | 3.8 | 4.9 | 5.0 | 5.0 |
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| Dominican Republic | 3.0 | 3.6 | 3.1 | 2.9 |
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| Ecuador | 3.8 | 4.8 | 3.8 | 3.6 |
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| Egypt, Arab Rep. | 5.0 | 5.5 | 4.5 | 4.2 |
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| El Salvador | 3.4 | 3.4 | 3.3 | 2.4 |
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| Equatorial Guinea | ||||||
| Eritrea | ||||||
| Estonia | 5.4 | 6.2 | 5.4 | 5.0 |
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| Ethiopia | 1.6 | 1.5 | 1.4 | 1.5 |
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| Faeroe Islands | ||||||
| Fiji | 5.4 | 7.5 | 5.0 |
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| Finland | 4.8 | 6.2 | 5.8 | 5.5 |
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| France | 6.1 | 6.6 | 6.5 | 6.3 |
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| French Polynesia | 14.4 | 6.9 | 6.8 |
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| Gabon | ||||||
| Gambia, The | 2.2 | 2.6 | 3.4 | 3.0 |
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| Georgia | 4.5 | 5.9 | 5.4 | 4.8 |
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| Germany | 7.2 | 7.7 | 6.9 | 6.4 |
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| Ghana | 6.9 | 8.6 | 6.3 | 5.3 |
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| Greece | 3.3 | 4.0 | 3.6 | 3.7 |
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| Greenland | ||||||
| Grenada | 2.4 | 2.8 | 2.6 | 2.6 |
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| Guam | ||||||
| Guatemala | 4.8 | 6.8 | 6.6 | 5.2 |
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| Guinea | 1.7 | 2.0 | 0.9 | 1.8 |
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| Guinea-Bissau | 16.2 | 9.0 | 9.9 |
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| Guyana | 3.5 | 3.8 | 4.4 |
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| Haiti | 13.4 | 15.4 | 10.5 | 11.0 |
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| Honduras | 4.1 | 5.3 | 5.2 | 5.0 |
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| Hong Kong SAR, China | 4.0 | 4.3 | 3.8 | 3.7 |
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| Hungary | 3.1 | 3.6 | 2.9 | 2.7 |
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| Iceland | 13.4 | 10.0 | 10.3 | 10.4 |
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| India | 3.2 | 2.8 | 2.4 | 2.5 |
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| Indonesia | 6.4 | 6.6 | 5.8 | 5.1 |
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| Iran, Islamic Rep. | ||||||
| Iraq | 2.2 | 2.8 | 3.5 | 3.6 |
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| Ireland | 5.4 | 4.8 | 4.2 | 3.9 |
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| Isle of Man | ||||||
| Israel | 5.3 | 6.2 | 5.8 | 5.0 |
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| Italy | 5.7 | 6.9 | 5.8 | 5.6 |
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| Jamaica | 3.1 | 4.1 | 3.6 | 2.7 |
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| Japan | 4.5 | 5.4 | 5.0 | 4.1 |
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| Jordan | 5.9 | 7.3 | 9.5 | 6.0 |
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| Kazakhstan | 2.7 | 3.4 | 3.4 | 3.6 |
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| Kenya | 2.1 | 2.0 | 1.6 | 1.2 |
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| Kiribati | ||||||
| Korea, Dem. Rep. | ||||||
| Korea, Rep. | 4.1 | 4.1 | 3.8 | 3.5 |
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| Kosovo | ||||||
| Kuwait | 21.5 | 21.1 | 20.3 | 22.5 |
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| Kyrgyz Republic | 9.5 | 10.6 | 10.2 | 11.2 |
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| Lao PDR | 3.4 | 5.7 | 9.3 | 9.0 |
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| Latvia | 6.8 | 8.0 | 6.0 | 5.3 |
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| Lebanon | 14.8 | 16.7 | 17.2 | 14.3 |
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| Lesotho | 13.0 | 12.6 | 11.4 | 11.1 |
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| Liberia | 2.7 | 3.0 | 7.5 | 4.0 |
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| Libya | 5.1 | 6.2 | 7.1 | 14.7 |
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| Liechtenstein | ||||||
| Lithuania | 4.6 | 5.5 | 3.1 | 2.6 |
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| Luxembourg | 5.7 | 6.8 | 6.0 | 5.6 |
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| Macao SAR, China | 6.9 | 9.4 | 8.8 |
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| Macedonia, FYR | 2.8 | 2.9 | 2.6 | 2.4 |
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| Madagascar | ||||||
| Malawi | 4.8 | 4.4 | 3.7 | 3.4 |
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| Malaysia | 4.3 | 5.0 | 4.2 | 4.9 |
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| Maldives | 10.0 | 14.2 | 14.9 | 11.3 |
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| Mali | 6.1 | 8.2 | 6.3 |
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| Malta | 4.4 | 5.2 | 5.2 | 5.2 |
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| Marshall Islands | ||||||
| Mauritania | ||||||
| Mauritius | 7.8 | 7.5 | 6.9 | 5.7 |
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| Mexico | 3.1 | 3.4 | 2.8 | 2.6 |
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| Micronesia, Fed. Sts. | ||||||
| Moldova | 6.7 | 8.3 | 7.6 | 6.7 |
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| Monaco | ||||||
| Mongolia | 6.6 | 9.2 | 8.2 | 5.3 |
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| Montenegro | 1.9 | 2.8 | 2.8 | 2.4 |
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| Morocco | 4.4 | 4.9 | 5.1 | 4.9 |
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| Mozambique | 5.2 | 5.5 | 6.1 | 3.8 |
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| Myanmar | 1.4 | 1.3 | 1.1 | 1.5 |
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| Namibia | 2.6 | 2.4 | 2.6 | 3.3 |
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| Nepal | 12.5 | 11.2 | 9.0 | 6.5 |
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| Netherlands | 4.1 | 4.7 | 4.0 | 3.6 |
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| New Caledonia | 3.9 | 5.0 | 4.1 |
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| New Zealand | 7.0 | 8.0 | 7.7 | 7.3 |
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| Nicaragua | 6.3 | 6.8 | 6.3 | 5.7 |
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| Niger | 5.0 | 3.3 |
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| Nigeria | 17.1 | 12.6 | 12.4 | 11.1 |
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| Northern Mariana Islands | ||||||
| Norway | 11.2 | 12.6 | 12.4 | 12.5 |
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| Oman | 4.5 | 6.0 | 7.3 | 6.9 |
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| Pakistan | 4.5 | 3.1 | 3.4 | 3.9 |
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| Palau | ||||||
| Panama | 3.2 | 3.1 | 2.9 | 2.5 |
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| Papua New Guinea | 1.5 | 2.8 | 2.2 |
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| Paraguay | 2.2 | 3.1 | 2.5 | 2.4 |
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| Peru | 4.2 | 5.5 | 4.8 | 4.1 |
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| Philippines | 4.4 | 6.7 | 6.8 | 6.5 |
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| Poland | 4.5 | 4.5 | 4.4 | 3.7 |
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| Portugal | 4.9 | 5.5 | 5.3 | 5.2 |
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| Puerto Rico | ||||||
| Qatar | 17.8 | |||||
| Romania | 2.9 | 3.2 | 3.0 | 3.0 |
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| Russian Federation | 7.5 | 9.5 | 9.4 | 9.0 |
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| Rwanda | 8.4 | 7.9 | 5.7 |
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| Samoa | 6.7 | 6.9 | 6.8 | 5.2 |
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| San Marino | ||||||
| Sao Tome and Principe | 0.3 | 0.4 | 0.5 | 0.9 |
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| Saudi Arabia | 9.1 | 13.1 | 12.7 | 9.2 |
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| Senegal | 3.9 | 4.9 | 4.2 |
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| Serbia | 5.3 | 5.8 | 5.6 | 5.5 |
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| Seychelles | 5.3 | 4.9 | 5.4 | 5.0 |
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| Sierra Leone | 4.1 | 2.9 | 2.1 | 1.5 |
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| Singapore | 4.1 | 4.9 | 4.6 | 4.5 |
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| Sint Maarten (Dutch part) | ||||||
| Slovak Republic | 3.2 | 3.6 | 3.0 | 3.0 |
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| Slovenia | 4.2 | 5.2 | 4.5 | 3.7 |
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| Solomon Islands | 9.9 | 11.0 | 9.3 |
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| Somalia | ||||||
| South Africa | 6.4 | 7.9 | 8.1 | 7.0 |
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| South Sudan | ||||||
| Spain | 5.3 | 6.1 | 5.6 | 5.1 |
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| Sri Lanka | 5.0 | 6.3 | 5.4 | 4.2 |
|
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| St. Kitts and Nevis | 3.7 | 3.2 | 4.2 | 4.8 |
|
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| St. Lucia | 5.5 | 7.3 | 6.0 | 6.0 |
|
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| St. Martin (French part) | ||||||
| St. Vincent and the Grenadines | 4.2 | 3.6 | 3.9 | 3.9 |
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| Sudan | 11.3 | 8.6 | 10.4 | 9.1 |
|
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| Suriname | 1.9 | 2.1 | 2.5 | 2.2 |
|
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| Swaziland | 2.7 | 4.3 | 3.3 |
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| Sweden | 7.4 | 8.2 | 7.8 | 7.7 |
|
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| Switzerland | 5.1 | 5.3 | 4.6 | 4.1 |
|
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| Syrian Arab Republic | 4.7 | 5.9 | 8.2 |
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| Tajikistan | 0.3 | 0.2 | 0.5 | 0.2 |
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| Tanzania | 8.6 | 10.7 | 9.5 | 7.7 |
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| Thailand | 3.3 | 3.7 | 3.5 | 2.9 |
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| Timor-Leste | 6.4 | 5.9 | 5.0 | 3.2 |
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| Togo | 4.1 | 5.6 | 4.9 |
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| Tonga | 11.5 | 10.2 |
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| Trinidad and Tobago | 1.0 | 1.9 | 1.4 |
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| Tunisia | 2.1 | 2.3 | 2.5 | 2.6 |
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| Turkey | 2.0 | 3.1 | 2.8 | 2.2 |
|
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| Turkmenistan | ||||||
| Turks and Caicos Islands | ||||||
| Tuvalu | ||||||
| Uganda | 5.9 | 6.6 | 7.2 | 7.0 |
|
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| Ukraine | 4.7 | 6.9 | 5.9 | 5.1 |
|
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| United Arab Emirates | ||||||
| United Kingdom | 9.9 | 9.4 | 8.4 | 7.9 |
|
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| United States | 4.7 | 5.4 | 4.7 | 4.4 |
|
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| Uruguay | 4.5 | 5.4 | 5.7 | 6.4 |
|
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| Uzbekistan | ||||||
| Vanuatu | 7.1 | 9.5 | 8.0 | 8.6 |
|
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| Venezuela, RB | 4.4 | 4.7 | 4.7 | 5.0 |
|
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| Vietnam | 1.6 | 1.5 | 1.7 | 1.6 |
|
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| Virgin Islands (U.S.) | ||||||
| West Bank and Gaza | 11.5 | 11.1 | 10.7 |
|
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| Yemen, Rep. | 2.1 | 2.8 | 2.3 | 2.5 |
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| Zambia | 2.0 | 2.0 | 2.3 | 1.8 |
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| Zimbabwe |