| Country name | 2010 | 2011 | 2012 | 2013 | ||
|---|---|---|---|---|---|---|
| Afghanistan | 50.6 | 59.1 | 41.0 |
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| Albania | ||||||
| Algeria | 24.5 | 29.7 |
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| American Samoa | ||||||
| Andorra | ||||||
| Angola | 26.1 | 28.6 | 26.0 |
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| Antigua and Barbuda | 22.1 | 23.4 | 20.6 |
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| Argentina | ||||||
| Armenia | 23.0 | 22.6 | 22.8 |
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| Aruba | ||||||
| Australia | 26.8 | 26.0 | 26.3 |
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| Austria | 38.8 | 37.5 | 38.3 |
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| Azerbaijan | 20.9 | 18.5 | 22.5 |
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| Bahamas, The | 17.7 | 19.3 | 18.9 |
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| Bahrain | 19.5 | 22.3 |
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| Bangladesh | 9.3 | 9.8 |
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| Barbados | 35.1 | |||||
| Belarus | 31.3 | 26.3 | 28.5 |
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| Belgium | 42.7 | 43.6 | 44.8 |
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| Belize | 25.3 | 24.7 | 22.5 |
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| Benin | 14.1 | 13.3 | 13.9 |
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| Bermuda | ||||||
| Bhutan | ||||||
| Bolivia | ||||||
| Bosnia and Herzegovina | 39.9 | 38.8 | 39.8 |
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| Botswana | 30.8 | 29.3 | 30.2 |
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| Brazil | 26.7 | 26.3 | 26.7 |
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| Brunei Darussalam | ||||||
| Bulgaria | 30.3 | 30.3 | 31.3 |
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| Burkina Faso | 11.6 | 12.8 | 15.1 |
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| Burundi | ||||||
| Cabo Verde | 19.7 | 22.9 | 22.0 |
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| Cambodia | 10.6 | 11.1 | 11.7 |
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| Cameroon | ||||||
| Canada | 18.8 | 18.1 | 17.5 | 17.3 |
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| Cayman Islands | ||||||
| Central African Republic | 17.6 | 14.9 | 9.5 |
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| Chad | ||||||
| Chile | 20.6 | 20.0 | 20.3 |
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| China | ||||||
| Colombia | 25.4 | 24.2 | 25.1 |
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| Comoros | ||||||
| Congo, Dem. Rep. | 8.4 | |||||
| Congo, Rep. | ||||||
| Costa Rica | 26.6 | 26.3 | 27.0 |
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| Cote d'Ivoire | 14.9 | 13.9 | 15.2 |
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| Croatia | 37.4 | 36.8 | 36.6 |
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| Cuba | ||||||
| Curacao | ||||||
| Cyprus | 42.4 | 43.0 | 44.2 |
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| Czech Republic | 34.0 | 33.6 | 33.1 |
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| Denmark | 41.1 | 41.8 | 43.1 |
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| Djibouti | ||||||
| Dominica | 23.8 | 23.9 | 24.3 |
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| Dominican Republic | 14.2 | 13.9 |
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| Ecuador | ||||||
| Egypt, Arab Rep. | 28.9 | 29.2 | 30.5 |
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| El Salvador | 20.8 | 21.8 | 20.6 |
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| Equatorial Guinea | ||||||
| Eritrea | ||||||
| Estonia | 33.9 | 31.2 | 30.9 |
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| Ethiopia | 12.5 | 10.6 |
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| Faeroe Islands | ||||||
| Fiji | ||||||
| Finland | 38.4 | 38.0 | 39.2 |
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| France | 48.3 | 46.4 | 46.9 |
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| French Polynesia | ||||||
| Gabon | ||||||
| Gambia, The | ||||||
| Georgia | 26.4 | 24.3 | 25.4 |
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| Germany | 31.1 | 28.6 | 28.3 |
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| Ghana | 20.2 | 21.1 |
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| Greece | 49.3 | 52.8 | 53.8 |
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| Greenland | ||||||
| Grenada | 19.6 | 20.0 | 21.2 |
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| Guam | ||||||
| Guatemala | 12.7 | 12.5 | 13.0 |
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| Guinea | ||||||
| Guinea-Bissau | ||||||
| Guyana | ||||||
| Haiti | ||||||
| Honduras | 22.7 | 22.5 | 23.5 |
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| Hong Kong SAR, China | ||||||
| Hungary | 44.0 | 45.3 | 43.5 |
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| Iceland | 37.6 | 34.7 | 34.4 |
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| India | 16.2 | 14.0 | 15.9 |
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| Indonesia | ||||||
| Iran, Islamic Rep. | ||||||
| Iraq | ||||||
| Ireland | 59.6 | 41.8 | 37.7 |
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| Isle of Man | ||||||
| Israel | 39.2 | 39.0 | 38.9 |
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| Italy | 40.7 | 40.0 | 40.4 |
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| Jamaica | 35.7 | 34.8 | 34.1 |
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| Japan | 18.1 | 19.6 | 19.3 |
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| Jordan | 25.3 | 28.0 | 29.5 |
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| Kazakhstan | ||||||
| Kenya | 18.0 | 18.3 | 19.6 |
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| Kiribati | 58.0 | 70.1 | 62.4 |
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| Korea, Dem. Rep. | ||||||
| Korea, Rep. | 18.4 | 18.9 |
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| Kosovo | ||||||
| Kuwait | 38.1 | 35.8 | 30.2 |
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| Kyrgyz Republic | 21.1 | 21.7 | 22.9 |
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| Lao PDR | 11.0 | 11.3 | 12.0 |
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| Latvia | 35.6 | 30.6 | 28.8 |
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| Lebanon | 26.1 | 26.3 | 27.3 |
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| Lesotho | ||||||
| Liberia | 21.0 | 21.0 | 24.9 |
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| Libya | ||||||
| Liechtenstein | ||||||
| Lithuania | 37.1 | 33.8 | 32.1 |
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| Luxembourg | 39.5 | 38.5 | 40.1 |
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| Macao SAR, China | 14.6 | 12.1 | 11.0 |
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| Macedonia, FYR | 30.3 | 29.3 | 29.9 |
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| Madagascar | 9.0 | 9.7 |
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| Malawi | ||||||
| Malaysia | 18.8 | 20.3 | 21.6 |
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| Maldives | 30.9 | 28.7 |
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| Mali | 14.5 | 14.9 | 14.4 | 16.0 |
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| Malta | 43.1 | 40.6 | 42.0 |
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| Marshall Islands | ||||||
| Mauritania | ||||||
| Mauritius | 22.7 | 20.9 | 20.8 |
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| Mexico | ||||||
| Micronesia, Fed. Sts. | ||||||
| Moldova | 35.0 | 32.8 | 33.3 |
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| Monaco | ||||||
| Mongolia | 26.6 | 28.6 | 31.7 |
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| Montenegro | ||||||
| Morocco | 30.4 | 33.2 | 34.8 |
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| Mozambique | 22.0 | 23.5 | 24.8 |
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| Myanmar | ||||||
| Namibia | 28.6 | 35.0 |
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| Nepal | 15.6 | 15.9 | 15.9 | 15.2 |
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| Netherlands | 42.3 | 41.5 | 42.2 |
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| New Caledonia | ||||||
| New Zealand | 46.9 | 53.5 | 46.3 |
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| Nicaragua | 14.7 | 14.8 | 15.1 |
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| Niger | ||||||
| Nigeria | 6.0 | 6.0 | 5.1 |
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| Northern Mariana Islands | ||||||
| Norway | 35.3 | 34.6 | 34.3 |
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| Oman | 23.9 | 29.2 | 35.6 |
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| Pakistan | 17.5 | 17.6 | 18.8 | 17.7 |
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| Palau | ||||||
| Panama | ||||||
| Papua New Guinea | ||||||
| Paraguay | 16.1 | 17.6 | 21.2 |
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| Peru | 17.7 | 17.8 | 17.9 |
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| Philippines | 16.9 | 15.8 | 16.4 |
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| Poland | 35.7 | 33.7 | 33.6 |
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| Portugal | 43.5 | 42.9 | 42.6 |
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| Puerto Rico | ||||||
| Qatar | 18.7 | |||||
| Romania | 40.4 | 35.2 | 33.6 |
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| Russian Federation | 27.4 | 25.1 | 26.3 |
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| Rwanda | 15.5 | 15.0 | 14.5 | 13.0 |
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| Samoa | 0.0 | 0.0 | 0.0 |
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| San Marino | ||||||
| Sao Tome and Principe | 20.6 | 19.4 | 17.4 |
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| Saudi Arabia | ||||||
| Senegal | 15.5 | 17.5 | 17.0 |
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| Serbia | 38.7 | 37.6 | 39.2 |
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| Seychelles | 30.5 | 26.5 | 28.5 |
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| Sierra Leone | 20.2 | 21.6 | 21.9 |
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| Singapore | 12.6 | 13.0 | 12.7 |
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| Sint Maarten (Dutch part) | ||||||
| Slovak Republic | 35.7 | 34.7 | 34.4 |
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| Slovenia | 41.7 | 42.5 | 42.3 |
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| Solomon Islands | ||||||
| Somalia | ||||||
| South Africa | 32.7 | 33.3 | 33.8 |
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| South Sudan | ||||||
| Spain | 30.1 | 28.5 | 32.6 |
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| Sri Lanka | 19.3 | 17.8 | 17.9 |
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| St. Kitts and Nevis | 28.4 | 30.3 | 27.7 |
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| St. Lucia | 21.5 | 21.4 | 23.5 |
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| St. Martin (French part) | ||||||
| St. Vincent and the Grenadines | 25.7 | 27.1 | 26.1 |
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| Sudan | ||||||
| Suriname | 20.9 | 20.9 | 22.3 |
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| Swaziland | ||||||
| Sweden | 31.0 | 30.4 | 30.9 |
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| Switzerland | 16.6 | 16.5 |
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| Syrian Arab Republic | ||||||
| Tajikistan | ||||||
| Tanzania | 24.0 | 23.3 | 24.2 |
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| Thailand | 18.6 | 20.8 | 21.0 |
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| Timor-Leste | ||||||
| Togo | 14.4 | 15.6 | 18.0 |
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| Tonga | ||||||
| Trinidad and Tobago | 33.1 | |||||
| Tunisia | 27.8 | 34.5 | 35.3 |
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| Turkey | 35.4 | 33.3 | 33.6 |
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| Turkmenistan | ||||||
| Turks and Caicos Islands | ||||||
| Tuvalu | ||||||
| Uganda | 16.3 | 19.0 | 14.3 |
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| Ukraine | 40.9 | 38.2 | 40.9 |
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| United Arab Emirates | 4.2 | 4.1 |
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| United Kingdom | 43.2 | 41.7 | 42.1 |
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| United States | 25.9 | 25.2 | 24.0 | 23.1 |
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| Uruguay | 30.5 | 29.6 | 31.3 |
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| Uzbekistan | ||||||
| Vanuatu | 22.2 | 22.0 |
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| Venezuela, RB | ||||||
| Vietnam | ||||||
| Virgin Islands (U.S.) | ||||||
| West Bank and Gaza | ||||||
| Yemen, Rep. | ||||||
| Zambia | 13.7 | 15.3 |
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| Zimbabwe |