Country name 2009 2010 2011 2012
Malawi 26
Burkina Faso 24
Tanzania 23
Colombia 20
Peru 14 14 13 13
Burundi 10
Cambodia 8
Timor-Leste 7
Rwanda 6
Armenia 5
Micronesia, Fed. Sts.
Aruba
Australia
Austria
Northern Mariana Islands
Liechtenstein
Somalia
Azerbaijan
Bahamas, The
Malaysia
Bahrain
Namibia
Bangladesh 30
Albania 3
Barbados
Serbia
Belarus
St. Vincent and the Grenadines
Belgium
Afghanistan
Belize
Macedonia, FYR
Benin
Marshall Islands
Bermuda
Montenegro
Bhutan
New Zealand
Bolivia
Palau
Bosnia and Herzegovina
Puerto Rico
Botswana
San Marino
Brazil
Sint Maarten (Dutch part)
Brunei Darussalam
Sri Lanka
Bulgaria
Sweden
Argentina
West Bank and Gaza
Antigua and Barbuda
Liberia 38
Cabo Verde
Luxembourg
Angola
Algeria
Cameroon 25
Mali
Canada
Mauritius
Cayman Islands
Monaco
Central African Republic
Mozambique 38
Chad
Netherlands
Chile
Niger
China
Oman
Andorra
Papua New Guinea
Comoros
Poland
Congo, Dem. Rep.
Romania
Congo, Rep.
Costa Rica
Saudi Arabia
Cote d'Ivoire 30
Sierra Leone
American Samoa
Slovenia
Tunisia
South Sudan
Tuvalu
St. Lucia
United Kingdom
Suriname
Vanuatu
Syrian Arab Republic
Croatia 4
Cuba
Tonga
Curacao
Turkmenistan
Cyprus
Ukraine
Czech Republic
Uruguay
Denmark
Vietnam
Djibouti
Zambia
Dominica
Lesotho 20
Dominican Republic
Libya
Ecuador
Lithuania
Egypt, Arab Rep.
Macao SAR, China
El Salvador
Madagascar 32
Equatorial Guinea
Eritrea
Maldives 2
Estonia
Malta
Ethiopia 12
Mauritania
Faeroe Islands
Mexico
Fiji
Moldova
Finland
Mongolia
France
Morocco
French Polynesia
Myanmar
Gabon 28
Nepal 17
Gambia, The
New Caledonia
Georgia
Nicaragua
Germany
Nigeria
Ghana
Norway
Greece
Pakistan
Greenland
Panama
Grenada
Paraguay
Guam
Philippines
Guatemala 22
Portugal
Guinea
Qatar
Guinea-Bissau
Russian Federation
Guyana 18
Samoa
Haiti 14
Sao Tome and Principe 23
Honduras 24
Senegal 18 19
Hong Kong SAR, China
Seychelles
Hungary
Singapore
Iceland
Slovak Republic
India
Solomon Islands
Indonesia 10
South Africa
Iran, Islamic Rep.
Spain
Iraq
St. Kitts and Nevis
Ireland
St. Martin (French part)
Isle of Man
Sudan
Israel
Swaziland
Italy
Switzerland
Jamaica 14
Tajikistan
Japan
Thailand
Jordan 5
Togo
Kazakhstan
Trinidad and Tobago
Kenya 18
Turkey
Kiribati
Turks and Caicos Islands
Korea, Dem. Rep.
Uganda 24
Korea, Rep.
United Arab Emirates
Kosovo
United States
Kuwait
Uzbekistan
Kyrgyz Republic
Venezuela, RB
Lao PDR
Virgin Islands (U.S.)
Latvia
Yemen, Rep.
Lebanon
Zimbabwe 24

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