| Country name | 2004 | 2005 | 2006 | 2007 | 2008 |
|---|---|---|---|---|---|
| Afghanistan | 30.3% | 25.2% | 22.9% | 17.3% | 17.2% |
| Albania | 21.5% | 22.3% | 25.1% | 28.4% | 31.2% |
| Algeria | 40.1% | 47.6% | 48.9% | 46.5% | 47.5% |
| Angola | 69.7% | 79.3% | 73.8% | 75.4% | 75.6% |
| Antigua and Barbuda | 65.5% | 62.8% | 55.0% | 50.3% | 51.1% |
| Argentina | 25.3% | 25.1% | 24.8% | 24.6% | 24.5% |
| Armenia | 27.4% | 28.8% | 23.4% | 19.2% | 14.7% |
| Aruba | |||||
| Australia | 17.5% | 18.7% | 20.3% | 20.6% | 20.7% |
| Austria | 51.9% | 54.0% | 56.6% | 59.6% | 58.8% |
| Azerbaijan | 48.8% | 62.9% | 66.5% | 68.1% | 69.5% |
| Bahamas, The | 44.9% | 45.8% | 43.7% | 45.3% | |
| Bahrain | 92.0% | 99.5% | 98.8% | 93.7% | 96.8% |
| Bangladesh | 15.5% | 16.6% | 19.0% | 19.8% | 20.3% |
| Barbados | 52.2% | 59.4% | 60.1% | 59.5% | 60.0% |
| Belarus | 67.9% | 59.8% | 60.1% | 60.9% | 61.8% |
| Belgium | 83.8% | 86.6% | 87.3% | 88.8% | 92.1% |
| Belize | 50.6% | 54.6% | 61.4% | 59.9% | 62.1% |
| Benin | 13.3% | 13.5% | 11.4% | 16.2% | 15.2% |
| Bhutan | 28.6% | 35.1% | 45.2% | 52.6% | 55.9% |
| Bolivia | 31.1% | 35.5% | 41.4% | 41.8% | 44.9% |
| Bosnia and Herzegovina | 29.4% | 33.0% | 36.6% | 38.9% | 36.8% |
| Botswana | 44.3% | 48.7% | 50.7% | 47.6% | 46.2% |
| Brazil | 16.4% | 15.1% | 14.4% | 13.7% | 14.3% |
| Brunei Darussalam | 68.8% | 70.2% | 71.8% | 67.7% | |
| Bulgaria | 57.0% | 60.2% | 64.5% | 63.4% | 60.5% |
| Burkina Faso | 10.7% | 10.0% | 11.5% | ||
| Burundi | 9.6% | 11.4% | 10.7% | ||
| Cambodia | 63.6% | 64.1% | 68.6% | 65.3% | |
| Cameroon | 19.4% | 20.5% | 23.0% | 22.1% | 29.6% |
| Canada | 38.4% | 37.8% | 36.0% | 34.7% | |
| Cape Verde | 14.9% | 17.1% | 20.1% | 21.0% | 21.7% |
| Central African Republic | 13.2% | 12.6% | 14.0% | 14.8% | 10.8% |
| Chad | 51.0% | 61.0% | 63.2% | 54.8% | 54.1% |
| Chile | 40.8% | 41.3% | 45.8% | 47.2% | 45.1% |
| China | 34.0% | 37.4% | 39.9% | 39.7% | 36.6% |
| Colombia | 17.4% | 17.3% | 17.8% | 16.9% | 18.2% |
| Comoros | 12.7% | 12.5% | 11.7% | 12.2% | 12.8% |
| Congo, Dem. Rep. of | 30.4% | 34.5% | 30.7% | 27.2% | 23.3% |
| Congo, Rep. | 80.5% | 84.2% | 84.2% | 83.4% | 78.7% |
| Costa Rica | 46.3% | 48.5% | 49.1% | 48.8% | 45.8% |
| Cote d'Ivoire | 48.6% | 51.1% | 52.7% | 47.8% | 46.5% |
| Croatia | 43.3% | 42.6% | 43.4% | 42.8% | 41.9% |
| Cuba | |||||
| Cyprus | 47.8% | 48.3% | 48.0% | 48.8% | 47.1% |
| Czech Republic | 70.1% | 72.2% | 76.4% | 80.1% | 77.1% |
| Denmark | 45.4% | 49.0% | 52.0% | 52.3% | 54.7% |
| Djibouti | 37.0% | 40.6% | 40.3% | 59.2% | |
| Dominica | 43.3% | 43.2% | 45.5% | 41.0% | 40.2% |
| Dominican Republic | 42.3% | 30.0% | 30.0% | 29.1% | 25.9% |
| Ecuador | 27.5% | 30.9% | 34.0% | 35.1% | 37.8% |
| Egypt, Arab Rep. | 28.2% | 30.3% | 29.9% | 30.3% | 33.2% |
| El Salvador | 27.8% | 26.5% | 27.2% | 27.2% | 27.7% |
| Equatorial Guinea | 90.1% | 87.4% | 86.8% | 81.9% | 78.3% |
| Eritrea | 6.8% | 5.8% | 6.5% | 6.3% | |
| Estonia | 73.1% | 77.7% | 80.1% | 72.8% | 75.6% |
| Ethiopia | 14.9% | 15.1% | 13.9% | 12.7% | 11.5% |
| Fiji | 53.8% | 55.7% | |||
| Finland | 40.0% | 41.8% | 45.2% | 45.7% | 44.2% |
| France | 25.7% | 26.1% | 26.7% | 26.5% | 26.4% |
| French Polynesia | |||||
| Gabon | 62.2% | 64.7% | 61.9% | 62.2% | 66.6% |
| Gambia, The | 46.0% | 40.0% | 39.8% | 32.9% | 30.0% |
| Georgia | 31.6% | 33.7% | 32.9% | 31.2% | 28.7% |
| Germany | 38.4% | 41.1% | 45.3% | 46.9% | 47.2% |
| Ghana | 39.3% | 36.4% | 40.2% | 40.0% | 42.5% |
| Greece | 22.0% | 22.0% | 23.3% | 23.0% | 23.1% |
| Grenada | 41.5% | 26.9% | 28.6% | 32.2% | 28.9% |
| Guatemala | 27.0% | 25.1% | 24.9% | 25.3% | 24.7% |
| Guinea | 23.5% | 33.8% | 39.3% | 30.1% | 33.2% |
| Guinea-Bissau | 32.1% | 31.3% | 18.7% | 28.0% | 29.8% |
| Guyana | 95.8% | 84.6% | 63.4% | 64.2% | 68.3% |
| Haiti | 15.4% | 14.4% | 14.3% | 12.7% | 11.1% |
| Honduras | 58.4% | 59.0% | 56.1% | 51.8% | 48.6% |
| Hong Kong SAR, China | 190.2% | 198.7% | 205.5% | 208.0% | 212.5% |
| Hungary | 63.2% | 66.0% | 77.1% | 80.4% | 81.4% |
| Iceland | 34.1% | 31.5% | 32.0% | 34.6% | 44.7% |
| India | 18.1% | 19.9% | 22.2% | 21.2% | 22.7% |
| Indonesia | 32.2% | 34.1% | 31.0% | 29.4% | 29.8% |
| Iran, Islamic Rep. of | 29.0% | 33.1% | 32.5% | 32.2% | |
| Ireland | 83.9% | 81.6% | 79.9% | 79.4% | |
| Israel | 41.3% | 42.6% | 42.8% | 42.7% | 40.0% |
| Italy | 25.4% | 25.9% | 27.7% | 29.0% | 28.8% |
| Jamaica | |||||
| Japan | 13.3% | 14.3% | 16.1% | 17.6% | |
| Jordan | 52.2% | 52.5% | 54.7% | 53.9% | 58.2% |
| Kazakhstan | 52.2% | 53.5% | 51.1% | 49.4% | 57.2% |
| Kenya | 26.6% | 28.5% | 26.4% | 26.0% | 27.3% |
| Kiribati | 9.7% | ||||
| Korea, Rep. of | 40.9% | 39.3% | 39.7% | 41.9% | 52.9% |
| Kuwait | 56.9% | 64.0% | 65.5% | 63.4% | 66.4% |
| Kyrgyz Republic | 42.6% | 38.7% | 41.7% | 44.0% | 56.5% |
| Lao P.D.R. | 28.8% | 33.1% | 38.4% | 35.7% | 32.7% |
| Latvia | 44.0% | 47.8% | 44.9% | 42.2% | 41.8% |
| Lebanon | 20.1% | 21.4% | 21.3% | 22.5% | 27.2% |
| Lesotho | 55.9% | 51.1% | 50.0% | 52.7% | 47.3% |
| Liberia | 37.3% | 37.9% | 28.6% | 28.3% | 31.1% |
| Libya | 63.3% | 66.4% | 71.3% | 67.6% | 67.4% |
| Lithuania | 52.1% | 57.5% | 59.1% | 54.4% | 59.2% |
| Luxembourg | 152.4% | 158.6% | 175.5% | 179.9% | 179.3% |
| Macao SAR, China | 104.1% | 94.5% | 89.5% | 88.3% | 90.4% |
| Macedonia, FYR | 41.1% | 45.5% | 48.1% | 53.4% | 52.6% |
| Madagascar | 32.6% | 26.9% | 29.9% | 30.0% | 26.7% |
| Malawi | 25.0% | 19.6% | 18.8% | 22.3% | 22.6% |
| Malaysia | 115.4% | 117.5% | 116.7% | 110.2% | |
| Maldives | 91.9% | 64.6% | 83.7% | 83.1% | 83.5% |
| Mali | 25.4% | 25.6% | 32.1% | 27.3% | |
| Malta | 79.2% | 77.6% | 87.4% | 87.7% | |
| Mauritania | 30.6% | 35.9% | 54.6% | 57.7% | |
| Mauritius | 54.0% | 59.9% | 61.6% | 58.7% | 53.0% |
| Mexico | 26.6% | 27.2% | 28.1% | 28.3% | 28.3% |
| Micronesia, Fed. States of | |||||
| Moldova | 50.7% | 51.1% | 45.3% | 47.5% | 40.7% |
| Mongolia | 66.7% | 64.3% | 65.3% | 64.3% | 57.2% |
| Montenegro | 42.0% | 43.5% | 49.6% | 43.4% | 40.3% |
| Morocco | 29.4% | 32.3% | 34.2% | 35.7% | 36.7% |
| Mozambique | 31.4% | 32.5% | 39.7% | 36.9% | 33.3% |
| Myanmar | 0.2% | ||||
| Namibia | 39.8% | 40.5% | 39.9% | 39.8% | 42.0% |
| Nepal | 16.7% | 14.6% | 13.4% | 13.0% | 12.1% |
| Netherlands, The | 66.4% | 69.6% | 73.0% | 74.9% | 76.9% |
| New Caledonia | |||||
| New Zealand | 28.9% | 27.8% | 29.1% | 29.0% | |
| Nicaragua | 27.4% | 29.1% | 31.1% | 33.2% | |
| Niger | 16.9% | 15.4% | |||
| Nigeria | 44.0% | 46.5% | 42.9% | 41.0% | 41.6% |
| Norway | 42.0% | 44.6% | 46.4% | 45.8% | 48.1% |
| Oman | 51.6% | 58.0% | 55.8% | 55.9% | |
| Pakistan | 15.7% | 15.7% | 15.2% | 14.2% | 12.8% |
| Palau | 78.3% | 77.2% | 68.9% | 67.8% | |
| Panama | 67.6% | 75.5% | 76.7% | 80.0% | 74.9% |
| Papua New Guinea | 72.2% | 73.6% | 82.1% | 81.3% | 72.5% |
| Paraguay | 46.0% | 51.2% | 53.7% | 50.9% | 53.1% |
| Peru | 21.5% | 25.1% | 28.5% | 28.8% | 27.1% |
| Philippines | 50.9% | 47.6% | 47.3% | 42.5% | 36.9% |
| Poland | 37.5% | 37.1% | 40.4% | 40.8% | 39.8% |
| Portugal | 28.4% | 28.5% | 31.0% | 32.7% | 32.9% |
| Puerto Rico | |||||
| Qatar | 64.2% | 68.3% | 67.4% | 64.2% | |
| Romania | 35.9% | 32.9% | 29.6% | 30.7% | 29.9% |
| Russian Federation | 34.4% | 35.2% | 33.7% | 30.3% | 30.8% |
| Rwanda | 10.1% | 10.2% | 9.7% | 9.7% | 14.9% |
| Samoa | 26.3% | 26.7% | 28.2% | 30.7% | 33.5% |
| Saudi Arabia | 52.7% | 60.9% | 63.2% | 64.9% | 68.9% |
| Senegal | 26.4% | 26.9% | 25.6% | 25.4% | 25.0% |
| Serbia | 22.7% | 25.2% | 28.7% | 29.4% | 29.7% |
| Seychelles | 97.8% | 81.1% | 88.8% | 108.8% | 130.9% |
| Sierra Leone | 22.5% | 23.6% | 24.9% | 20.8% | 16.3% |
| Singapore | 224.4% | 236.4% | 243.4% | 230.2% | 234.3% |
| Slovak Republic | 74.6% | 76.3% | 84.4% | 86.7% | 83.0% |
| Slovenia | 58.0% | 62.2% | 66.6% | 70.2% | |
| Solomon Islands | 30.9% | 34.1% | 36.1% | ||
| Somalia | |||||
| South Africa | 26.7% | 27.4% | 29.7% | 31.5% | 35.4% |
| Spain | 25.9% | 25.7% | 26.4% | 26.5% | 26.4% |
| Sri Lanka | 35.3% | 32.3% | 30.1% | 29.1% | 24.9% |
| St. Kitts and Nevis | 48.5% | 51.7% | 47.4% | 42.5% | 40.9% |
| St. Lucia | 57.9% | 56.8% | 46.7% | 45.8% | 51.5% |
| St. Vincent and the Grenadines | 43.9% | 45.1% | 42.6% | 41.8% | 43.0% |
| Sudan | 17.6% | 18.2% | 16.5% | 20.1% | 23.8% |
| Suriname | 26.0% | 30.7% | |||
| Swaziland | 90.1% | 89.1% | 84.6% | 78.3% | 68.6% |
| Sweden | 46.3% | 48.7% | 51.5% | 52.6% | 54.2% |
| Switzerland | 46.3% | 48.9% | 52.4% | 55.9% | |
| Syrian Arab Republic | 40.6% | 41.5% | 40.1% | 38.5% | 31.3% |
| Tajikistan | 58.3% | 26.0% | 23.3% | 20.7% | 16.7% |
| Tanzania | 22.4% | 21.0% | 21.7% | ||
| Thailand | 70.7% | 73.6% | 73.6% | 72.7% | 76.6% |
| Togo | 33.5% | 40.3% | 42.3% | 41.9% | |
| Tonga | 20.3% | 19.9% | 16.2% | 13.9% | 14.1% |
| Trinidad and Tobago | 56.1% | 69.3% | 68.3% | 64.6% | 73.4% |
| Tunisia | 46.9% | 49.7% | 50.4% | 54.1% | 61.0% |
| Turkey | 23.6% | 21.9% | 22.7% | 22.3% | 23.9% |
| Turkmenistan | 61.7% | 30.7% | 35.1% | 100.8% | 80.5% |
| Uganda | 12.7% | 14.2% | 15.3% | 16.7% | 15.6% |
| Ukraine | 61.2% | 51.5% | 46.6% | 44.8% | 41.7% |
| United Arab Emirates | 89.8% | 92.6% | 91.4% | 91.0% | |
| United Kingdom | 25.3% | 26.4% | 28.5% | 26.4% | 28.9% |
| United States | 10.2% | 10.6% | 11.3% | 12.1% | |
| Uruguay | 32.1% | 30.4% | 29.1% | 28.0% | 28.3% |
| Uzbekistan | 40.2% | 37.9% | 37.5% | 40.3% | 41.9% |
| Vanuatu | 48.6% | 47.9% | 44.1% | 42.3% | 44.7% |
| Venezuela, R.B. de | 36.2% | 39.7% | 36.2% | 31.0% | 30.4% |
| Vietnam | 65.7% | 69.4% | 73.6% | 76.9% | 78.2% |
| West Bank and Gaza | 14.6% | 14.0% | |||
| Yemen, Rep. of | |||||
| Zambia | 38.3% | 34.7% | 38.6% | 42.1% | 36.8% |
| Zimbabwe | 42.5% | 56.8% |