| Country name | 2008 | 2009 | 2010 | 2011 | ||
|---|---|---|---|---|---|---|
| Korea, Dem. Rep. | 0.0 | 0.0 |
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| Timor-Leste | 0.2 | 0.2 | 0.2 | 0.9 |
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| Myanmar | 0.2 | 0.2 | 0.3 | 1.0 |
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| Sierra Leone | 0.3 | 0.3 |
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| Liberia | 0.5 | 0.5 | 2.3 | 3.0 |
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| Cambodia | 0.5 | 0.5 | 1.3 | 3.1 |
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| Ethiopia | 0.5 | 0.5 | 0.8 | 1.1 |
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| Congo, Dem. Rep. | 0.4 | 0.6 | 0.7 | 1.2 |
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| Niger | 0.7 | 0.8 | 0.8 | 1.3 |
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| Burundi | 0.8 | 0.9 | 1.0 | 1.1 |
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| Guinea | 0.9 | 0.9 | 1.0 | 1.3 |
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| Iraq | 1.0 | 1.1 | 2.5 | 5.0 |
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| Malawi | 0.7 | 1.1 | 2.3 | 3.3 |
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| Burkina Faso | 0.9 | 1.1 | 2.4 | 3.0 |
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| Somalia | 1.1 | 1.2 | 1.3 |
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| Chad | 1.2 | 1.5 | 1.7 | 1.9 |
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| Papua New Guinea | 1.2 | 1.6 | 1.3 | 2.0 |
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| Madagascar | 1.7 | 1.6 | 1.7 | 1.9 |
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| Mali | 1.6 | 1.8 | 1.9 | 2.0 |
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| Central African Republic | 1.0 | 1.8 | 2.0 | 2.2 |
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| Turkmenistan | 1.8 | 2.0 | 3.0 | 5.0 |
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| Nepal | 1.7 | 2.0 | 7.9 | 9.0 |
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| Cote d'Ivoire | 1.9 | 2.0 | 2.1 | 2.2 |
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| Equatorial Guinea | 1.8 | 2.1 | 6.0 |
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| Benin | 1.9 | 2.2 | 3.1 | 3.5 |
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| Mauritania | 1.9 | 2.3 | 4.0 | 4.5 |
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| Guinea-Bissau | 2.4 | 2.3 | 2.5 | 2.7 |
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| Togo | 2.4 | 2.6 | 3.0 | 3.5 |
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| Mozambique | 1.6 | 2.7 | 4.2 | 4.3 |
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| Bangladesh | 2.5 | 3.1 | 3.7 | 5.0 |
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| Comoros | 3.0 | 3.5 | 5.1 | 5.5 |
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| Marshall Islands | 3.6 | 3.5 |
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| Afghanistan | 1.8 | 3.6 | 4.0 | 5.0 |
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| Lesotho | 3.6 | 3.7 | 3.9 | 4.2 |
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| Cameroon | 3.4 | 3.8 | 4.3 | 5.0 |
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| Djibouti | 2.3 | 4.0 | 6.5 | 7.0 |
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| Solomon Islands | 3.0 | 4.0 | 5.0 | 6.0 |
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| Congo, Rep. | 4.3 | 4.5 | 5.0 | 5.6 |
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| Eritrea | 4.1 | 4.9 | 5.4 | 6.2 |
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| India | 4.4 | 5.1 | 7.5 | 10.1 |
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| Ghana | 4.3 | 5.4 | 12.7 | 14.1 |
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| Angola | 4.6 | 6.0 | 10.0 | 14.8 |
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| Samoa | 5.0 | 6.0 | 7.0 |
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| Lao PDR | 3.6 | 6.0 | 7.0 | 9.0 |
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| Botswana | 6.3 | 6.2 | 6.0 | 7.0 |
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| Zambia | 5.6 | 6.3 | 10.0 | 11.5 |
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| Namibia | 5.3 | 6.5 | 11.6 | 12.0 |
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| Gabon | 6.2 | 6.7 | 7.2 | 8.0 |
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| Indonesia | 7.9 | 6.9 | 10.9 | 18.0 |
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| Bhutan | 6.6 | 7.2 | 13.6 | 21.0 |
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| Nicaragua | 5.3 | 7.3 | 10.0 | 10.6 |
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| Vanuatu | 7.3 | 7.5 | 8.0 |
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| Pakistan | 7.0 | 7.5 | 8.0 | 9.0 |
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| Gambia, The | 6.9 | 7.6 | 9.2 | 10.9 |
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| Rwanda | 4.5 | 7.7 | 8.0 | 7.0 |
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| Haiti | 7.6 | 8.1 | 8.4 |
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| Sri Lanka | 5.8 | 8.8 | 12.0 | 15.0 |
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| Swaziland | 6.9 | 8.9 | 11.0 | 18.1 |
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| Kiribati | 7.0 | 9.0 | 9.1 | 10.0 |
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| Philippines | 6.2 | 9.0 | 25.0 | 29.0 |
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| Guatemala | 8.3 | 9.3 | 10.5 | 11.7 |
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| Uganda | 7.9 | 9.8 | 12.5 | 13.0 |
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| Honduras | 9.6 | 9.8 | 11.1 | 15.9 |
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| Yemen, Rep. | 6.9 | 10.0 | 12.4 | 14.9 |
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| Tanzania | 9.0 | 10.0 | 11.0 | 12.0 |
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| South Africa | 8.4 | 10.0 | 18.0 | 21.0 |
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| Tonga | 8.1 | 10.0 | 16.0 | 25.0 |
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| Kenya | 8.7 | 10.0 | 14.0 | 28.0 |
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| Tajikistan | 8.8 | 10.1 | 11.6 | 13.0 |
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| Libya | 9.0 | 10.8 | 14.0 | 17.0 |
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| Iran, Islamic Rep. | 10.2 | 11.1 | 16.0 | 21.0 |
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| Algeria | 10.2 | 11.2 | 12.5 | 14.0 |
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| Zimbabwe | 11.4 | 11.4 | 11.5 | 15.7 |
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| Belize | 11.3 | 11.7 | 14.0 |
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| El Salvador | 10.1 | 12.1 | 15.9 | 17.7 |
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| Mongolia | 12.5 | 12.6 | 12.9 | 20.0 |
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| Cuba | 12.9 | 14.3 | 15.9 | 23.2 |
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| Senegal | 10.6 | 14.5 | 16.0 | 17.5 |
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| Armenia | 6.2 | 15.3 | 25.0 | 32.0 |
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| Micronesia, Fed. Sts. | 14.5 | 15.4 | 20.0 |
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| Sao Tome and Principe | 15.5 | 16.4 | 18.8 | 20.2 |
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| Bolivia | 12.5 | 16.8 | 22.4 | 30.0 |
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| Fiji | 13.0 | 17.0 | 20.0 | 28.0 |
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| Kyrgyz Republic | 15.7 | 17.0 | 18.4 | 20.0 |
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| Uzbekistan | 9.1 | 17.1 | 20.0 | 30.2 |
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| Syrian Arab Republic | 14.0 | 17.3 | 20.7 | 22.5 |
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| Ukraine | 11.0 | 17.9 | 23.3 | 30.6 |
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| Kazakhstan | 11.0 | 18.2 | 31.6 | 45.0 |
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| Paraguay | 14.3 | 18.9 | 19.8 | 23.9 |
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| Nigeria | 15.9 | 20.0 | 24.0 | 28.4 |
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| Tuvalu | 15.0 | 20.0 | 25.0 | 30.0 |
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| Georgia | 10.0 | 20.1 | 26.9 | 36.6 |
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| Thailand | 18.2 | 20.1 | 22.4 | 23.7 |
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| Mauritius | 21.8 | 22.5 | 28.3 | 35.0 |
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| Guyana | 18.2 | 23.9 | 29.9 | 32.0 |
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| Egypt, Arab Rep. | 18.0 | 24.0 | 30.2 | 38.7 |
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| Grenada | 23.2 | 24.1 | 33.5 |
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| Jamaica | 23.6 | 24.3 | 27.7 | 31.5 |
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| Ecuador | 18.8 | 24.6 | 29.0 | 31.4 |
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| Maldives | 23.2 | 24.8 | 28.3 | 34.0 |
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| Cape Verde | 20.0 | 25.0 | 30.0 | 32.0 |
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| Jordan | 23.0 | 26.0 | 27.2 | 34.9 |
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| Mexico | 21.7 | 26.3 | 31.1 | 36.2 |
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| Vietnam | 23.9 | 26.6 | 30.7 | 35.1 |
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| Virgin Islands (U.S.) | 27.4 | 27.4 |
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| Azerbaijan | 17.1 | 27.4 | 46.0 | 50.0 |
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| Belarus | 23.0 | 27.4 | 31.8 | 39.6 |
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| Moldova | 23.4 | 27.5 | 32.3 | 38.0 |
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| Dominican Republic | 20.8 | 27.7 | 31.4 | 35.5 |
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| China | 22.6 | 28.9 | 34.3 | 38.3 |
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| Russian Federation | 26.8 | 29.0 | 43.0 | 49.0 |
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| Colombia | 25.6 | 30.0 | 36.5 | 40.4 |
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| Lebanon | 22.5 | 30.1 | 43.7 | 52.0 |
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| St. Vincent and the Grenadines | 21.0 | 31.0 | 38.5 | 43.0 |
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| Suriname | 21.1 | 31.4 | 31.6 | 32.0 |
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| Peru | 30.6 | 31.4 | 34.8 | 36.5 |
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| West Bank and Gaza | 24.4 | 32.2 | 37.4 | 41.1 |
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| Venezuela, RB | 25.9 | 32.7 | 37.4 | 40.2 |
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| Bahamas, The | 31.5 | 33.9 | 43.0 | 65.0 |
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| New Caledonia | 34.5 | 34.0 | 42.0 | 50.0 |
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| Argentina | 28.1 | 34.0 | 40.0 | 47.7 |
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| Tunisia | 27.5 | 34.1 | 36.8 | 39.1 |
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| Costa Rica | 32.3 | 34.3 | 36.5 | 42.1 |
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| Montenegro | 32.9 | 35.1 | 37.5 | 40.0 |
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| St. Lucia | 32.0 | 36.0 | 40.0 | 42.0 |
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| Turkey | 34.4 | 36.4 | 39.8 | 42.1 |
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| Romania | 32.4 | 36.6 | 39.9 | 44.0 |
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| Aruba | 34.2 | 37.7 | 42.0 | 57.1 |
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| Bosnia and Herzegovina | 34.7 | 37.7 | 52.0 | 60.0 |
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| Saudi Arabia | 36.0 | 38.0 | 41.0 | 47.5 |
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| Serbia | 35.6 | 38.1 | 40.9 | 42.2 |
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| Chile | 37.3 | 38.8 | 45.0 | 53.9 |
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| Panama | 33.8 | 39.1 | 40.1 | 42.7 |
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| Brazil | 33.8 | 39.2 | 40.7 | 45.0 |
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| Albania | 23.9 | 41.2 | 45.0 | 49.0 |
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| Morocco | 33.1 | 41.3 | 49.0 | 51.0 |
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| Puerto Rico | 38.0 | 41.5 | 45.3 | 48.0 |
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| Uruguay | 39.3 | 41.8 | 46.4 | 51.4 |
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| Dominica | 41.2 | 42.0 | 47.5 | 51.3 |
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| Greece | 38.2 | 42.4 | 44.4 | 53.0 |
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| Trinidad and Tobago | 34.8 | 44.3 | 48.5 | 55.2 |
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| French Polynesia | 33.9 | 44.6 | 49.0 | 49.0 |
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| Bulgaria | 39.7 | 45.0 | 46.2 | 51.0 |
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| Portugal | 41.9 | 46.5 | 51.1 | 55.3 |
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| Hungary | 56.0 | 48.0 | 53.0 | 59.0 |
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| Italy | 44.5 | 48.8 | 53.7 | 56.8 |
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| Brunei Darussalam | 46.0 | 49.0 | 53.0 | 56.0 |
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| Cyprus | 42.3 | 49.8 | 53.0 | 57.7 |
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| Guam | 48.4 | 50.6 |
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| Kuwait | 42.0 | 50.8 | 61.4 | 74.2 |
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| Oman | 20.0 | 51.5 | 62.0 | 68.0 |
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| Macedonia, FYR | 46.0 | 51.8 | 51.9 | 56.7 |
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| Bahrain | 52.0 | 53.0 | 55.0 | 77.0 |
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| Qatar | 44.3 | 53.1 | 81.6 | 86.2 |
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| Macao SAR, China | 49.2 | 54.0 | 53.8 | 58.0 |
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| San Marino | 54.5 | 54.2 | 49.6 |
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| Malaysia | 55.8 | 55.9 | 56.3 | 61.0 |
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| Croatia | 50.6 | 56.3 | 60.3 | 70.7 |
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| Malta | 50.1 | 58.9 | 63.0 | 69.2 |
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| Poland | 53.1 | 59.0 | 62.3 | 64.9 |
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| Lithuania | 55.2 | 59.8 | 62.1 | 65.1 |
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| Spain | 59.6 | 62.4 | 65.8 | 67.6 |
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| Greenland | 62.8 | 62.8 | 63.0 | 64.0 |
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| Israel | 59.4 | 63.1 | 67.5 | 70.0 |
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| United Arab Emirates | 63.0 | 64.0 | 68.0 | 70.0 |
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| Slovenia | 58.0 | 64.0 | 70.0 | 72.0 |
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| Czech Republic | 63.0 | 64.4 | 68.8 | 73.0 |
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| Cayman Islands | 61.0 | 64.5 | 66.0 | 69.5 |
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| Latvia | 63.4 | 66.8 | 68.4 | 71.7 |
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| Ireland | 65.3 | 67.4 | 69.9 | 76.8 |
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| Barbados | 66.5 | 68.7 | 70.2 | 71.8 |
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| Singapore | 69.0 | 69.0 | 71.0 | 71.0 |
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| St. Kitts and Nevis | 60.0 | 69.0 | 76.0 |
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| Hong Kong SAR, China | 66.7 | 69.4 | 72.0 | 74.5 |
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| Slovak Republic | 66.1 | 70.0 | 75.7 | 74.4 |
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| Belgium | 66.0 | 70.0 | 75.0 | 78.0 |
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| Monaco | 67.3 | 70.1 | 75.0 |
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| United States | 74.0 | 71.0 | 74.0 | 77.9 |
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| France | 70.7 | 71.6 | 80.1 | 79.6 |
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| Estonia | 70.6 | 72.5 | 74.1 | 76.5 |
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| Austria | 72.9 | 73.5 | 75.2 | 79.8 |
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| Antigua and Barbuda | 75.0 | 74.2 | 80.0 | 82.0 |
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| Australia | 71.7 | 74.3 | 76.0 | 79.0 |
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| Liechtenstein | 70.0 | 75.0 | 80.0 | 85.0 |
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| Faeroe Islands | 75.6 | 75.2 | 75.2 | 80.7 |
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| Japan | 75.4 | 78.0 | 78.2 | 79.5 |
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| United Kingdom | 78.4 | 78.0 | 78.0 | 82.0 |
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| Andorra | 70.0 | 78.5 | 81.0 | 81.0 |
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| Germany | 78.0 | 79.0 | 82.0 | 83.0 |
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| New Zealand | 72.0 | 79.7 | 83.0 | 86.0 |
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| Canada | 76.7 | 80.3 | 80.3 | 83.0 |
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| Switzerland | 79.2 | 81.3 | 83.9 | 85.2 |
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| Korea, Rep. | 81.0 | 81.6 | 83.7 | 83.8 |
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| Finland | 83.7 | 82.5 | 86.9 | 89.4 |
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| Bermuda | 82.3 | 83.3 | 84.2 | 88.3 |
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| Denmark | 85.0 | 86.8 | 88.7 | 90.0 |
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| Luxembourg | 82.2 | 87.3 | 90.6 | 90.9 |
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| Netherlands | 87.4 | 89.6 | 90.7 | 92.3 |
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| Sweden | 90.0 | 91.0 | 90.0 | 91.0 |
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| Norway | 90.6 | 92.1 | 93.4 | 94.0 |
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| Iceland | 91.0 | 93.0 | 95.0 | 95.0 |
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| Sint Maarten (Dutch part) | ||||||
| Sudan | 8.0 | 19.0 |
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| Kosovo | ||||||
| St. Martin (French part) | ||||||
| Turks and Caicos Islands | ||||||
| Curacao | ||||||
| South Sudan | ||||||
| Isle of Man | ||||||
| Seychelles | 40.4 | 41.0 | 43.2 |
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| Northern Mariana Islands | ||||||
| American Samoa | ||||||
| Palau |