| Country name | 2011 | 2012 | 2013 | 2014 | ||
|---|---|---|---|---|---|---|
| Afghanistan | 23.5 | 21.8 | 21.2 | 21.0 |
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| Albania | 14.3 | 14.4 | 15.1 | 14.9 |
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| Algeria | 50.9 | 50.7 | 47.6 | 47.1 |
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| American Samoa | ||||||
| Andorra | 12.6 | 11.2 | 10.4 |
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| Angola | 62.1 | 61.8 | 57.8 | 60.2 |
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| Antigua and Barbuda | 17.1 | 16.6 | 18.1 | 18.5 |
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| Argentina | 31.1 | 29.8 | 28.8 | 28.8 |
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| Armenia | 33.8 | 33.2 | 31.5 | 30.4 |
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| Aruba | 16.3 | |||||
| Australia | 28.5 | 28.2 | 26.8 | 27.1 |
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| Austria | 28.5 | 28.5 | 28.2 | 28.4 |
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| Azerbaijan | 65.6 | 63.1 | 62.1 | 58.3 |
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| Bahamas, The | 17.1 | 18.1 | 19.2 | 21.4 |
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| Bahrain | ||||||
| Bangladesh | 26.4 | 26.7 | 27.6 | 27.9 |
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| Barbados | 14.8 | 14.0 |
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| Belarus | 42.7 | 43.0 | 42.0 | 42.4 |
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| Belgium | 23.4 | 23.0 | 22.5 | 22.5 |
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| Belize | 22.6 | 20.2 | 19.1 |
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| Benin | 14.7 | 14.2 | 14.0 | 13.8 |
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| Bermuda | 6.8 | 6.0 |
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| Bhutan | 43.0 | 44.3 | 44.6 | 42.3 |
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| Bolivia | 38.9 | 38.7 | 38.1 |
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| Bosnia and Herzegovina | 27.3 | 26.6 | 27.1 | 26.8 |
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| Botswana | 40.2 | 34.7 | 37.3 | 37.9 |
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| Brazil | 27.2 | 25.4 | 24.4 | 23.4 |
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| Brunei Darussalam | 72.2 | 71.1 | 68.2 |
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| Bulgaria | 30.0 | 30.1 | 27.9 | 28.4 |
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| Burkina Faso | 32.1 | 29.6 | 27.8 | 26.0 |
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| Burundi | 16.9 | 16.9 | 17.7 | 18.3 |
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| Cabo Verde | 17.8 | 17.0 | 16.6 | 16.5 |
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| Cambodia | 23.5 | 24.4 | 25.6 | 27.3 |
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| Cameroon | 29.6 | 30.2 | 29.9 | 30.6 |
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| Canada | ||||||
| Cayman Islands | 4.6 | 4.7 |
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| Central African Republic | 13.9 | 13.8 | 12.0 | 12.0 |
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| Chad | 13.1 | 13.0 | 13.8 | 15.1 |
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| Chile | 38.7 | 36.6 | 35.1 | 35.1 |
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| China | 46.1 | 45.0 | 43.7 | 42.6 |
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| Colombia | 37.6 | 40.6 | 40.0 | 38.2 |
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| Comoros | 11.4 | 11.3 | 11.1 | 10.9 |
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| Congo, Dem. Rep. | 33.8 | 33.6 | 33.6 | 33.2 |
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| Congo, Rep. | 76.6 | 74.8 | 72.0 | 69.4 |
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| Costa Rica | 25.4 | 25.2 | 25.0 |
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| Cote d'Ivoire | 24.2 | 22.3 | 22.3 | 21.1 |
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| Croatia | 27.0 | 27.1 | 27.2 | 28.7 |
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| Cuba | 20.5 | |||||
| Curacao | ||||||
| Cyprus | 15.0 | 13.6 | 11.5 | 10.6 |
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| Czech Republic | 37.1 | 37.0 | 36.7 | 37.9 |
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| Denmark | 23.4 | 23.1 | 22.9 | 22.5 |
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| Djibouti | ||||||
| Dominica | 15.2 | 14.5 | 14.0 | 13.9 |
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| Dominican Republic | 27.7 | 27.0 | 27.0 | 26.9 |
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| Ecuador | 39.0 | 39.4 | 38.7 | 38.0 |
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| Egypt, Arab Rep. | 37.6 | 39.2 | 39.2 | 39.9 |
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| El Salvador | 26.9 | 26.9 | 27.0 |
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| Equatorial Guinea | ||||||
| Eritrea | ||||||
| Estonia | 29.2 | 29.0 | 28.9 | 28.2 |
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| Ethiopia | 10.5 | 10.3 | 11.9 | 15.4 |
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| Faeroe Islands | ||||||
| Fiji | 20.1 | 20.0 | 20.2 |
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| Finland | 28.9 | 27.0 | 26.8 | 26.0 |
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| France | 19.8 | 19.7 | 19.7 | 19.4 |
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| French Polynesia | ||||||
| Gabon | 58.5 | 57.8 | 44.7 | 42.9 |
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| Gambia, The | ||||||
| Georgia | 23.1 | 24.5 | 24.0 | 24.4 |
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| Germany | 30.5 | 30.7 | 30.7 | 30.7 |
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| Ghana | 26.2 | 28.9 | 28.8 | 29.5 |
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| Greece | 14.3 | 13.8 | 13.8 | 13.3 |
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| Greenland | ||||||
| Grenada | 15.6 | 14.3 | 15.2 | 14.2 |
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| Guam | ||||||
| Guatemala | 29.3 | 29.5 | 29.0 | 29.0 |
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| Guinea | 44.8 | 41.7 | 37.7 | 37.6 |
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| Guinea-Bissau | 13.2 | 15.0 | 13.7 | 13.6 |
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| Guyana | 36.4 | 36.7 | 35.8 | 35.3 |
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| Haiti | ||||||
| Honduras | 27.8 | 28.1 | 27.3 | 26.4 |
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| Hong Kong SAR, China | 7.0 | 7.1 | 7.2 |
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| Hungary | 30.1 | 30.4 | 30.2 |
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| Iceland | 24.0 | 24.0 | 23.4 |
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| India | 33.1 | 31.9 | 30.7 | 30.1 |
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| Indonesia | 44.8 | 44.6 | 43.6 | 42.9 |
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| Iran, Islamic Rep. | ||||||
| Iraq | ||||||
| Ireland | 27.5 | 27.0 | 24.1 |
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| Isle of Man | ||||||
| Israel | ||||||
| Italy | 24.2 | 23.9 | 23.4 | 23.4 |
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| Jamaica | 21.2 | 20.8 | 20.5 |
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| Japan | 26.1 | 26.0 | 26.2 |
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| Jordan | 31.1 | 30.1 | 29.7 | 29.8 |
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| Kazakhstan | 40.9 | 39.5 | 36.9 | 36.0 |
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| Kenya | 21.0 | 20.7 | 20.1 | 19.4 |
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| Kiribati | 6.2 | 6.2 | 7.7 |
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| Korea, Dem. Rep. | ||||||
| Korea, Rep. | 38.4 | 38.1 | 38.4 | 38.2 |
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| Kuwait | 67.4 | 69.1 | 67.2 |
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| Kyrgyz Republic | 30.8 | 25.6 | 28.9 | 26.7 |
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| Lao PDR | 34.8 | 36.0 | 33.1 | 31.3 |
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| Latvia | 18.1 | 17.7 | 16.9 | 16.4 |
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| Lebanon | 16.1 | 20.5 | 19.7 | 24.8 |
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| Lesotho | 33.1 | 31.7 | 29.8 |
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| Liberia | ||||||
| Libya | ||||||
| Liechtenstein | 36.1 | 38.3 |
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| Lithuania | 24.6 | 24.8 | 24.2 | 23.6 |
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| Luxembourg | 13.2 | 13.6 | 12.2 |
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| Macao SAR, China | 6.4 | 6.2 |
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| Macedonia, FYR | 25.1 | 24.4 | 24.5 | 24.8 |
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| Madagascar | 16.0 | 16.0 | 16.1 |
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| Malawi | 19.2 | 19.6 | 17.2 | 17.0 |
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| Malaysia | 40.4 | 40.8 | 40.5 | 40.5 |
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| Maldives | 18.8 | 19.4 | 17.4 | 19.0 |
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| Mali | 22.5 | 22.7 |
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| Malta | ||||||
| Marshall Islands | ||||||
| Mauritania | 46.9 | 42.9 | 41.1 | 35.6 |
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| Mauritius | 25.4 | 24.7 | 24.3 | 23.2 |
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| Mexico | 36.3 | 36.4 | 34.4 | 33.8 |
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| Micronesia, Fed. Sts. | 9.2 | |||||
| Moldova | 16.8 | 16.7 | 17.1 | 16.7 |
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| Monaco | ||||||
| Mongolia | 35.8 | 34.6 | 35.5 | 37.2 |
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| Montenegro | 18.1 | 17.9 | 18.8 | 20.3 |
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| Morocco | 30.2 | 30.3 | 28.5 | 28.0 |
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| Mozambique | 21.0 | 21.5 | 21.2 | 21.2 |
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| Myanmar | ||||||
| Namibia | 30.1 | 32.4 | 33.3 | 34.9 |
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| Nepal | 15.4 | 15.5 | 15.7 | 15.2 |
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| Netherlands | 22.4 | 22.3 | 22.2 | 21.4 |
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| New Caledonia | ||||||
| New Zealand | 23.4 | |||||
| Nicaragua | 25.6 | 26.5 | 25.9 | 25.7 |
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| Niger | 16.1 | 21.1 | 21.9 | 19.5 |
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| Nigeria | 24.8 | 23.7 | 22.0 | 20.7 |
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| Northern Mariana Islands | ||||||
| Norway | 41.4 | 41.1 | 39.8 | 38.4 |
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| Oman | 72.2 | 70.3 | 68.6 |
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| Pakistan | 21.2 | 22.1 | 21.1 | 21.3 |
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| Palau | 10.4 | 8.3 | 9.1 | 8.7 |
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| Panama | 21.5 | 22.1 |
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| Papua New Guinea | ||||||
| Paraguay | 29.3 | 30.4 | 28.4 | 28.8 |
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| Peru | 38.9 | 36.8 |
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| Philippines | 31.3 | 31.2 | 31.1 | 31.2 |
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| Poland | 33.7 | 32.9 | 33.2 |
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| Portugal | 22.1 | 21.8 | 21.3 | 21.2 |
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| Puerto Rico | 95.4 | 93.1 | 95.5 |
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| Qatar | ||||||
| Romania | 42.8 | 42.3 | 43.2 | 27.3 |
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| Russian Federation | 37.4 | 36.8 | 36.3 |
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| Rwanda | 14.4 | 14.4 | 14.9 | 14.4 |
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| Samoa | ||||||
| San Marino | ||||||
| Sao Tome and Principe | 15.9 | |||||
| Saudi Arabia | 63.8 | 62.9 | 60.0 | 56.9 |
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| Senegal | 24.9 | 24.2 | 24.0 | 24.0 |
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| Serbia | 29.5 | 30.3 | 31.7 | 29.8 |
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| Seychelles | 13.7 | 13.3 | 12.9 | 12.5 |
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| Sierra Leone | 8.0 | 8.6 | 7.9 | 6.3 |
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| Singapore | 26.4 | 26.7 | 25.1 |
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| Sint Maarten (Dutch part) | ||||||
| Slovak Republic | 35.7 | 35.3 | 33.2 | 33.0 |
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| Slovenia | 30.9 | 31.7 | 32.0 | 32.8 |
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| Solomon Islands | ||||||
| Somalia | ||||||
| South Africa | 29.9 | 29.7 | 29.9 | 29.5 |
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| South Sudan | ||||||
| Spain | 24.9 | 23.5 | 23.3 | 23.1 |
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| Sri Lanka | 29.9 | 31.5 | 32.5 | 33.8 |
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| St. Kitts and Nevis | 26.0 | 26.3 | 25.3 | 25.4 |
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| St. Lucia | 15.6 | 15.1 | 14.4 | 12.8 |
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| St. Martin (French part) | ||||||
| St. Vincent and the Grenadines | 18.8 | 18.1 | 18.2 | 17.2 |
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| Sudan | 27.4 | 22.4 | 20.9 | 20.4 |
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| Suriname | 53.0 | 52.9 | 48.6 |
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| Swaziland | 47.7 | |||||
| Sweden | 28.2 | 26.9 | 25.9 | 25.7 |
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| Switzerland | 26.6 | 26.1 | 25.7 |
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| Syrian Arab Republic | ||||||
| Taiwan, China | ||||||
| Tajikistan | 22.5 | 22.5 | 21.7 |
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| Tanzania | 24.3 | 23.3 | 24.2 | 25.0 |
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| Thailand | 43.0 | 43.6 | 42.5 | 42.0 |
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| Timor-Leste | 23.1 | 19.8 |
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| Togo | 15.5 | 18.2 | 17.6 | 17.2 |
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| Tonga | 22.0 | 21.9 | 19.4 | 18.8 |
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| Trinidad and Tobago | 61.4 | 57.4 | 56.5 |
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| Tunisia | 31.6 | 31.1 | 30.0 |
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| Turkey | 27.5 | 26.7 | 26.6 | 27.1 |
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| Turkmenistan | 48.4 | 48.4 |
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| Turks and Caicos Islands | ||||||
| Tuvalu | 9.5 | 5.8 | 8.7 |
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| Uganda | ||||||
| Ukraine | 29.1 | 28.4 | 26.2 | 25.4 |
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| United Arab Emirates | 60.1 | 59.6 | 59.0 |
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| United Kingdom | 21.0 | 20.5 | 20.1 | 19.8 |
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| United States | 20.6 | 20.6 | 20.5 |
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| Uruguay | 25.5 | 25.6 | 26.3 | 27.4 |
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| Uzbekistan | 32.6 | 32.3 | 33.3 | 33.7 |
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| Vanuatu | 10.9 | 8.4 | 8.8 |
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| Venezuela, RB | 52.7 | 49.3 |
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| Vietnam | 37.9 | 38.6 | 38.3 | 38.5 |
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| Virgin Islands (U.S.) | ||||||
| West Bank and Gaza | 23.4 | 25.1 | 23.6 |
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| Yemen, Rep. | ||||||
| Zambia | 35.9 | 34.4 | 33.9 |
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| Zimbabwe | 32.7 | 31.6 | 31.1 | 29.6 |
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