Country name 2009 2010 2011 2012
United States 17.7 17.7 17.7 17.9
Marshall Islands 17.5 16.0 16.0 15.6
Sierra Leone 16.9 15.4 16.3 15.1
Micronesia, Fed. Sts. 13.4 13.8 13.7 12.8
Tuvalu 12.8 13.6 17.6 15.4
Liberia 14.4 13.1 15.6 15.5
Netherlands 11.9 12.1 11.9 12.4
France 11.7 11.7 11.6 11.7
Moldova 12.5 11.7 11.4 11.7
Austria 11.2 11.6 11.3 11.5
Germany 11.8 11.5 11.3 11.3
Canada 11.4 11.4 10.9 10.9
Kiribati 11.5 11.2 10.8 10.7
Denmark 11.5 11.1 10.9 11.2
Switzerland 11.0 10.9 11.0 11.3
Portugal 10.8 10.8 10.2 9.4
Rwanda 10.0 10.8 11.0 10.7
Lesotho 9.8 10.8 11.7 11.6
Serbia 10.5 10.7 10.3 10.5
Cuba 11.7 10.6 10.6 8.6
Belgium 10.6 10.5 10.5 10.8
New Zealand 10.0 10.2 10.3 10.3
Georgia 10.2 10.1 9.4 9.2
Norway 10.1 10.0 9.9 9.0
Bosnia and Herzegovina 9.9 9.8 9.9 9.9
Costa Rica 9.7 9.7 10.2 10.1
Palau 8.4 9.7 9.0 9.5
Spain 9.6 9.6 9.3 9.6
Japan 9.5 9.6 10.0 10.1
United Kingdom 9.9 9.6 9.4 9.4
Sweden 9.9 9.5 9.5 9.6
Iceland 9.7 9.4 9.2 9.1
Italy 9.4 9.4 9.2 9.2
Greece 10.0 9.4 9.0 9.3
Ireland 10.0 9.3 8.8 8.1
Uganda 9.3 9.2 9.3 8.0
Brazil 8.8 9.0 8.9 9.3
Slovak Republic 9.2 9.0 7.9 7.8
Finland 9.2 9.0 9.0 9.1
Australia 9.0 8.9 9.2 9.1
Slovenia 9.2 8.9 8.9 8.8
Burundi 7.0 8.8 9.0 8.1
Djibouti 8.3 8.8 8.7 8.8
Paraguay 7.5 8.7 8.9 10.3
South Africa 8.7 8.7 8.7 8.8
Honduras 9.1 8.7 8.4 8.6
Uruguay 8.9 8.7 8.8 8.9
Afghanistan 8.7 8.7 8.4 8.6
Panama 8.1 8.5 7.9 7.6
Malta 8.3 8.5 8.7 9.1
Jordan 9.5 8.5 8.8 9.8
Malawi 8.3 8.5 8.3 9.2
Swaziland 8.4 8.4 8.3 8.5
Namibia 7.9 8.2 8.6 8.3
Argentina 9.4 8.2 7.9 8.5
Hungary 7.7 8.0 7.9 7.8
Ukraine 7.8 7.8 7.3 7.6
Croatia 7.8 7.8 6.8 6.8
St. Lucia 8.1 7.8 7.6 8.5
Nicaragua 7.7 7.6 7.6 8.2
Bulgaria 7.2 7.6 7.3 7.4
Israel 7.6 7.6 7.6 7.5
Togo 7.2 7.5 8.0 8.6
Bahamas, The 7.4 7.4 7.5 7.5
Czech Republic 8.0 7.4 7.5 7.7
Burkina Faso 7.3 7.4 6.4 6.2
Cyprus 7.4 7.4 7.4 7.3
Solomon Islands 7.8 7.4 7.7 8.0
Korea, Rep. 7.1 7.3 7.4 7.5
Iran, Islamic Rep. 7.2 7.3 6.8 6.7
Central Europe and the Baltics 7.4 7.3 7.0 6.9
Lebanon 7.4 7.2 7.4 7.6
Ecuador 7.1 7.2 6.9 6.4
Luxembourg 8.0 7.2 6.7 6.9
Andorra 6.2 7.2 7.2 8.3
Tanzania 5.6 7.2 7.4 7.0
Montenegro 6.3 7.2 7.2 7.6
Guinea-Bissau 6.8 7.1 6.3 5.9
Chile 7.5 7.1 7.1 7.2
Sao Tome and Principe 7.5 7.1 7.6 7.9
Lithuania 7.5 7.0 6.7 6.7
Congo, Dem. Rep. 9.1 7.0 6.1 5.6
Poland 7.2 7.0 6.8 6.7
Macedonia, FYR 6.9 7.0 6.9 7.1
Vietnam 6.5 6.9 6.8 6.6
Niger 7.7 6.9 6.8 7.2
El Salvador 6.8 6.9 6.8 6.7
Cote d'Ivoire 6.8 6.9 6.8 7.1
Mali 6.8 6.9 6.8 5.8
Guatemala 7.1 6.9 6.7 6.7
Colombia 7.0 6.8 6.5 6.8
Turkey 6.7 6.8 6.1 6.3
Haiti 6.5 6.7 8.5 6.4
Barbados 8.0 6.7 7.2 6.3
Tunisia 6.2 6.7 7.0 7.0
Kyrgyz Republic 6.8 6.7 6.2 7.1
Guyana 6.4 6.6 6.8 6.6
Sudan 7.4 6.5 6.7 7.2
Latvia 6.8 6.5 6.0 6.0
Samoa 5.7 6.4 7.0 6.8
Mexico 6.4 6.3 6.0 6.1
Russian Federation 6.2 6.3 6.1 6.3
Estonia 6.8 6.3 5.8 5.9
Mongolia 6.4 6.3 6.0 6.3
Guinea 6.3 6.2 6.0 6.3
Zambia 6.4 6.1 6.2 6.5
Mauritania 5.4 6.0 5.9 6.4
Dominica 5.0 6.0 6.0 5.9
Tajikistan 5.9 6.0 5.8 5.8
Grenada 6.2 6.0 6.5 6.4
Romania 5.6 5.9 5.6 5.1
Nepal 6.0 5.9 6.1 5.5
Morocco 5.7 5.9 6.3 6.4
Belize 5.8 5.8 5.8 5.8
Cambodia 6.3 5.8 5.6 5.4
Suriname 6.1 5.8 6.0 5.9
Maldives 7.6 5.8 8.1 8.5
Mozambique 6.0 5.7 6.4 6.4
Antigua and Barbuda 4.6 5.7 5.5 5.2
Botswana 6.1 5.6 5.2 5.3
Timor-Leste 6.8 5.6 4.6 4.3
Nigeria 6.8 5.6 5.7 6.1
Belarus 6.1 5.6 4.9 5.0
Albania 6.0 5.5 6.0 6.0
Bolivia 5.8 5.5 5.0 5.8
Dominican Republic 5.4 5.5 5.4 5.4
Mauritius 5.0 5.4 4.9 4.8
St. Kitts and Nevis 5.0 5.4 5.8 5.9
Uzbekistan 5.4 5.4 5.6 5.9
Azerbaijan 5.9 5.3 5.0 5.4
San Marino 5.1 5.3 5.5 6.5
Ghana 5.1 5.3 5.3 5.2
Jamaica 5.2 5.3 5.2 5.9
Cameroon 5.1 5.3 5.4 5.1
Trinidad and Tobago 6.1 5.2 5.3 5.4
Yemen, Rep. 5.3 5.1 5.0 5.5
China 5.1 5.0 5.1 5.4
Fragile and conflict affected situations 5.7 4.9 4.7 5.0
Peru 5.3 4.9 4.7 5.1
Senegal 4.8 4.8 5.0 5.0
Tonga 4.6 4.8 5.0 5.4
Egypt, Arab Rep. 5.0 4.8 4.9 5.0
Venezuela, RB 5.8 4.7 4.5 4.6
St. Vincent and the Grenadines 5.1 4.7 4.9 5.2
Gambia, The 4.5 4.7 4.7 5.0
Vanuatu 3.9 4.7 3.8 3.6
Ethiopia 4.5 4.7 4.1 3.8
Armenia 4.5 4.6 3.7 4.5
Madagascar 4.5 4.5 4.1 4.1
Monaco 4.3 4.4 4.4 4.4
Kenya 4.6 4.4 4.4 4.7
Benin 4.4 4.3 4.5 4.5
Equatorial Guinea 5.6 4.3 4.5 4.7
Kazakhstan 4.5 4.3 3.9 4.2
Bahrain 4.5 4.3 3.8 3.9
Cabo Verde 4.2 4.3 4.0 3.9
Philippines 4.3 4.2 4.4 4.6
Fiji 4.2 4.2 3.8 4.0
Algeria 4.6 4.2 4.4 5.2
Singapore 4.5 4.1 4.2 4.7
Papua New Guinea 4.2 4.1 4.2 5.2
Bhutan 4.6 4.1 3.7 3.8
Saudi Arabia 4.1 4.0 3.5 3.2
Chad 4.5 4.0 2.8 2.8
Malaysia 3.9 4.0 3.8 3.9
Central African Republic 3.6 3.9 3.9 3.8
Thailand 4.1 3.8 4.1 3.9
Bangladesh 3.7 3.7 3.8 3.6
Seychelles 2.7 3.7 3.6 4.7
India 3.9 3.7 3.9 4.0
Gabon 3.7 3.5 3.4 3.5
Comoros 3.8 3.4 3.6 4.5
Sri Lanka 3.3 3.4 3.3 3.1
Angola 4.4 3.4 3.4 3.5
Syrian Arab Republic 3.5 3.4 3.4 3.4
Libya 3.5 3.3 3.9 3.9
United Arab Emirates 3.4 3.2 3.1 2.8
Eritrea 3.1 3.2 2.7 2.6
Iraq 4.6 3.1 2.7 3.6
Pakistan 3.0 3.0 3.0 3.1
Indonesia 2.8 2.9 2.9 3.0
Oman 3.0 2.8 2.4 2.6
Kuwait 3.9 2.8 2.6 2.5
Brunei Darussalam 2.8 2.7 2.2 2.3
Lao PDR 3.6 2.6 2.8 2.9
Congo, Rep. 2.3 2.3 2.5 3.2
Turkmenistan 2.1 2.1 2.1 2.0
Qatar 2.6 2.1 1.9 2.2
South Sudan 2.4 2.1 1.7 2.6
Myanmar 2.1 1.9 1.8 1.8
Macao SAR, China
Somalia
St. Martin (French part)
Sint Maarten (Dutch part)
Isle of Man
Cayman Islands
American Samoa
Puerto Rico
Liechtenstein
Curacao
West Bank and Gaza
Aruba
French Polynesia
Northern Mariana Islands
Greenland
Turks and Caicos Islands
Guam
New Caledonia
Hong Kong SAR, China
Korea, Dem. Rep.
Virgin Islands (U.S.)
Bermuda
Kosovo
Faeroe Islands
Zimbabwe

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