| Country name | 2008 | 2009 | 2010 | 2011 | ||
|---|---|---|---|---|---|---|
| Afghanistan | 14.9 | 15.0 | 15.7 | 15.1 |
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| Albania | 13.0 | 12.7 | 12.8 | 12.4 |
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| Algeria | 8.0 | 8.0 | 8.0 | 8.0 |
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| American Samoa | ||||||
| Andorra | ||||||
| Angola | 12.5 | 15.7 | 22.5 | 18.8 |
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| Antigua and Barbuda | 10.4 | 10.1 | 11.0 | 10.9 |
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| Argentina | 19.5 | 15.7 | 10.6 | 14.1 |
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| Armenia | 17.0 | 18.8 | 19.2 | 17.8 |
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| Aruba | 11.2 | 10.8 | 10.7 | 9.7 |
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| Australia | 8.9 | 6.0 | 7.3 | 7.7 |
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| Austria | ||||||
| Azerbaijan | 19.8 | 20.0 | 20.7 | 19.0 |
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| Bahamas, The | 5.5 | 5.5 | 5.5 | 5.1 |
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| Bahrain | 8.2 | 7.9 | 7.2 | 6.8 |
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| Bangladesh | 16.4 | 14.6 | 13.0 | 13.3 |
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| Barbados | 10.0 | 9.2 | 8.7 | 8.7 |
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| Belarus | 8.6 | 11.7 | 9.2 | 13.6 |
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| Belgium | 9.2 | 9.5 |
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| Belize | 14.1 | 14.1 | 13.9 | 13.4 |
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| Benin | ||||||
| Bermuda | ||||||
| Bhutan | 13.8 | 13.8 | 14.0 | 14.0 |
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| Bolivia | 13.9 | 12.4 | 9.9 | 10.9 |
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| Bosnia and Herzegovina | 7.0 | 7.9 | 7.9 | 7.4 |
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| Botswana | 16.5 | 13.8 | 11.5 | 11.0 |
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| Brazil | 47.3 | 44.7 | 40.0 | 43.9 |
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| Brunei Darussalam | 5.5 | 5.5 | 5.5 | 5.5 |
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| Bulgaria | 10.9 | 11.3 | 11.1 | 10.6 |
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| Burkina Faso | ||||||
| Burundi | 16.5 | 14.1 | 12.4 | 13.2 |
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| Cambodia | ||||||
| Cameroon | ||||||
| Canada | 4.7 | 2.4 | 2.6 | 3.0 |
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| Cape Verde | 10.0 | 11.0 | 11.0 | 9.8 |
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| Cayman Islands | ||||||
| Central African Republic | ||||||
| Chad | ||||||
| Chile | 13.3 | 7.3 | 4.8 | 9.0 |
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| China | 5.3 | 5.3 | 5.8 | 6.6 |
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| Colombia | 17.2 | 13.0 | 9.4 | 11.2 |
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| Comoros | 10.5 | 7.0 | 7.0 | 7.3 |
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| Congo, Dem. Rep. | 43.2 | 65.4 | 56.5 | 43.8 |
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| Congo, Rep. | ||||||
| Costa Rica | 15.8 | 19.7 | 17.1 | 16.1 |
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| Cote d'Ivoire | ||||||
| Croatia | 10.1 | 11.6 | 10.4 | 9.7 |
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| Cuba | ||||||
| Curacao | ||||||
| Cyprus | ||||||
| Czech Republic | 6.3 | 6.0 | 5.9 | 5.7 |
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| Denmark | ||||||
| Djibouti | 11.6 | 11.1 | 10.3 | 10.6 |
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| Dominica | 9.1 | 10.0 | 9.5 | 8.8 |
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| Dominican Republic | 19.9 | 18.1 | 12.1 | 15.6 |
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| Ecuador | ||||||
| Egypt, Arab Rep. | 12.3 | 12.0 | 11.0 | 11.0 |
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| El Salvador | ||||||
| Equatorial Guinea | ||||||
| Eritrea | ||||||
| Estonia | 8.5 | 9.4 | 7.8 | 6.1 |
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| Ethiopia | 8.0 | |||||
| Faeroe Islands | ||||||
| Fiji | 8.0 | 7.9 | 7.5 | 7.5 |
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| Finland | ||||||
| France | ||||||
| French Polynesia | ||||||
| Gabon | ||||||
| Gambia, The | 27.0 | 27.0 | 27.0 | 28.0 |
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| Georgia | 21.2 | 25.5 | 24.2 | 25.9 |
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| Germany | ||||||
| Ghana | ||||||
| Greece | ||||||
| Greenland | ||||||
| Grenada | 9.5 | 11.0 | 10.6 | 10.7 |
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| Guam | ||||||
| Guatemala | 13.4 | 13.8 | 13.3 | 13.4 |
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| Guinea | ||||||
| Guinea-Bissau | ||||||
| Guyana | 14.6 | 14.5 | 14.5 | 14.5 |
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| Haiti | 17.8 | 17.3 | 17.5 | 11.6 |
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| Honduras | 17.9 | 19.4 | 18.9 | 18.6 |
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| Hong Kong SAR, China | 5.0 | 5.0 | 5.0 | 5.0 |
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| Hungary | 10.2 | 11.0 | 7.6 | 8.3 |
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| Iceland | 20.1 | 19.0 | 10.3 | 7.7 |
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| India | 13.3 | 12.2 | 8.3 | 10.2 |
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| Indonesia | 13.6 | 14.5 | 13.3 | 12.4 |
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| Iran, Islamic Rep. | 12.0 | 12.0 | 12.0 | 11.0 |
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| Iraq | 19.2 | 16.2 | 14.1 | 13.6 |
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| Ireland | ||||||
| Isle of Man | ||||||
| Israel | 6.1 | 3.7 | 4.5 | 5.5 |
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| Italy | 6.8 | 4.8 | 4.0 | 4.6 |
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| Jamaica | 16.8 | 16.4 | 20.5 | 19.5 |
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| Japan | 1.9 | 1.7 | 1.6 | 1.5 |
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| Jordan | 9.0 | 9.2 | 9.0 | 8.7 |
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| Kazakhstan | ||||||
| Kenya | 14.0 | 14.8 | 14.4 | 15.0 |
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| Kiribati | ||||||
| Korea, Dem. Rep. | ||||||
| Korea, Rep. | 7.2 | 5.6 | 5.5 | 5.8 |
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| Kosovo | 13.8 | 14.1 | 14.3 | 13.9 |
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| Kuwait | 7.6 | 6.2 | 4.9 | 5.2 |
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| Kyrgyz Republic | 19.9 | 23.0 | 31.5 | 40.2 |
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| Lao PDR | 24.0 | 24.8 | 22.6 |
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| Latvia | 11.9 | 16.2 | 9.6 | 6.4 |
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| Lebanon | 10.0 | 9.6 | 8.3 | 7.5 |
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| Lesotho | 16.2 | 13.0 | 11.2 | 10.4 |
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| Liberia | 14.4 | 14.2 | 14.2 | 13.8 |
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| Libya | 6.0 | 6.0 | 6.0 | 6.0 |
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| Liechtenstein | ||||||
| Lithuania | 8.4 | 8.4 | 6.0 |
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| Luxembourg | ||||||
| Macao SAR, China | 5.4 | 5.3 | 5.3 | 5.3 |
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| Macedonia, FYR | 9.7 | 10.1 | 9.5 | 8.9 |
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| Madagascar | 45.0 | 45.0 | 49.0 | 52.5 |
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| Malawi | 25.3 | 25.3 | 24.6 | 23.8 |
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| Malaysia | 6.1 | 5.1 | 5.0 | 4.9 |
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| Maldives | 13.0 | 13.0 | 10.4 | 10.2 |
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| Mali | ||||||
| Malta | 5.9 | 4.5 | 4.6 | 4.7 |
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| Marshall Islands | ||||||
| Mauritania | 20.3 | 19.5 | 17.0 | 17.0 |
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| Mauritius | 11.5 | 9.3 | 8.9 | 8.9 |
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| Mexico | 8.7 | 7.1 | 5.3 | 4.9 |
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| Micronesia, Fed. Sts. | 14.4 | 15.4 | 15.1 | 14.4 |
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| Moldova | 21.1 | 20.5 | 16.4 | 14.4 |
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| Monaco | ||||||
| Mongolia | 20.6 | 21.7 | 20.1 | 16.6 |
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| Montenegro | 9.2 | 9.4 | 9.5 | 9.7 |
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| Morocco | ||||||
| Mozambique | 18.3 | 15.7 | 16.3 | 19.1 |
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| Myanmar | 17.0 | 17.0 | 17.0 | 16.3 |
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| Namibia | 13.7 | 11.1 | 9.7 | 8.7 |
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| Nepal | 8.0 | 8.0 | 8.0 |
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| Netherlands | 4.6 | 2.0 | 1.8 | 2.0 |
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| New Caledonia | ||||||
| New Zealand | 8.9 | 6.7 | 6.3 | 6.1 |
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| Nicaragua | 13.2 | 14.0 | 13.3 | 10.5 |
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| Niger | ||||||
| Nigeria | 15.5 | 18.4 | 17.6 | 16.0 |
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| Northern Mariana Islands | ||||||
| Norway | 7.3 | 4.3 |
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| Oman | 7.1 | 7.4 | 6.8 | 6.2 |
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| Pakistan | 12.9 | 14.5 | 14.0 | 14.4 |
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| Palau | ||||||
| Panama | 8.2 | 8.2 | 7.7 | 6.9 |
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| Papua New Guinea | 9.2 | 10.1 | 10.4 | 10.8 |
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| Paraguay | 25.8 | 28.3 | 26.0 | 28.9 |
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| Peru | 23.7 | 21.0 | 19.0 | 18.7 |
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| Philippines | 8.8 | 8.6 | 7.7 | 6.7 |
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| Poland | ||||||
| Portugal | ||||||
| Puerto Rico | ||||||
| Qatar | 6.8 | 7.0 | 7.3 | 5.5 |
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| Romania | 15.0 | 17.3 | 14.1 | 12.1 |
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| Russian Federation | 12.2 | 15.3 | 10.8 | 8.5 |
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| Rwanda | 16.5 | 16.1 | 16.7 |
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| Samoa | 12.7 | 12.1 | 10.7 | 10.0 |
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| San Marino | 7.9 | 5.7 | 5.4 | 5.9 |
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| Sao Tome and Principe | 32.4 | 31.1 | 28.9 | 27.0 |
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| Saudi Arabia | ||||||
| Senegal | ||||||
| Serbia | 16.1 | 11.8 | 17.3 | 17.2 |
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| Seychelles | 11.8 | 15.3 | 12.7 | 11.2 |
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| Sierra Leone | 24.5 | 22.2 | 21.3 | 21.0 |
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| Singapore | 5.4 | 5.4 | 5.4 | 5.4 |
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| Sint Maarten (Dutch part) | ||||||
| Slovak Republic | 5.8 | |||||
| Slovenia | 6.7 | 5.9 |
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| Solomon Islands | 14.4 | 15.3 | 14.4 | 13.2 |
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| Somalia | ||||||
| South Africa | 15.1 | 11.7 | 9.8 | 9.0 |
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| South Sudan | ||||||
| Spain | ||||||
| Sri Lanka | 18.9 | 15.7 | 10.2 | 9.4 |
|
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| St. Kitts and Nevis | 8.7 | 8.8 | 8.6 | 9.4 |
|
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| St. Lucia | 10.1 | 10.6 | 10.6 | 10.0 |
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| St. Martin (French part) | ||||||
| St. Vincent and the Grenadines | 9.5 | 9.2 | 9.2 | 9.1 |
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| Sudan | ||||||
| Suriname | 12.2 | 11.7 | 11.6 | 11.8 |
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| Swaziland | 14.8 | 11.4 | 9.8 | 9.0 |
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| Sweden | ||||||
| Switzerland | 3.3 | 2.8 | 2.7 | 2.7 |
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| Syrian Arab Republic | 10.2 | 10.0 | 9.9 |
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| Tajikistan | 23.7 | 22.6 | 24.2 | 24.8 |
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| Tanzania | 15.0 | 15.0 | 14.5 | 15.0 |
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| Thailand | 7.0 | 6.0 | 5.9 | 6.9 |
|
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| Timor-Leste | 13.1 | 11.2 | 11.0 | 11.0 |
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| Togo | ||||||
| Tonga | 12.5 | 12.5 | 11.5 | 11.4 |
|
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| Trinidad and Tobago | 12.4 | 11.9 | 9.3 | 8.0 |
|
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| Tunisia | ||||||
| Turkey | ||||||
| Turkmenistan | ||||||
| Turks and Caicos Islands | ||||||
| Tuvalu | ||||||
| Uganda | 20.5 | 21.0 | 20.2 | 21.8 |
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| Ukraine | 17.5 | 20.9 | 15.9 | 15.9 |
|
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| United Arab Emirates | ||||||
| United Kingdom | 4.6 | 0.6 | 0.5 | 0.5 |
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| United States | 5.1 | 3.3 | 3.3 | 3.3 |
|
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| Uruguay | 12.4 | 15.3 | 10.3 | 9.8 |
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| Uzbekistan | ||||||
| Vanuatu | 5.3 | 5.5 | 5.5 |
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| Venezuela, RB | 22.4 | 19.9 | 18.3 | 17.2 |
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| Vietnam | 15.8 | 10.1 | 13.1 | 17.0 |
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| Virgin Islands (U.S.) | ||||||
| West Bank and Gaza | ||||||
| Yemen, Rep. | 18.0 | 18.0 | 23.8 | 25.0 |
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| Zambia | 19.1 | 22.1 | 20.9 | 18.8 |
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| Zimbabwe |