Country name 2010 2011 2012 2013 2014
Vietnam 4
Iran, Islamic Rep. 6
Costa Rica 8
Russian Federation 8
Iraq 8
Cuba 9
Peru 10 10 9
Morocco 11
Kazakhstan 12
Bangladesh 14
Zimbabwe 15
Belize 16
Cambodia 17
Macedonia, FYR 17
Nigeria 19 16
Philippines 19 18
Rwanda 21
Cameroon 24
Burkina Faso 25
Ethiopia 26
Ghana 26 37
Central African Republic 27
Nepal 28
Mozambique 29
Senegal 30 29
Burundi 32
Equatorial Guinea 34
Uganda 34
Qatar 6
Mauritania
Bulgaria
Tajikistan 23
Brazil
Nicaragua
Botswana
Solomon Islands
Cabo Verde
Barbados
Bosnia and Herzegovina 9
Algeria
Bolivia
Panama
Canada
Aruba
Cayman Islands
St. Martin (French part)
Bhutan 12
Liechtenstein
Chad 28
Maldives
Chile
Moldova
China
Bahamas, The
Colombia 8
Norway
Comoros 32
Austria
Congo, Dem. Rep. 24 28
Samoa
Congo, Rep. 18
Singapore
Argentina
Spain
Cote d'Ivoire 27
Swaziland 13
Croatia
Liberia 31
Antigua and Barbuda
Luxembourg
Curacao
Malawi 26
Cyprus
Malta
Czech Republic
Mexico
Denmark
Mongolia 22
Djibouti
Myanmar
Dominica
New Caledonia
Dominican Republic 11
Azerbaijan
Ecuador
Pakistan 20
Egypt, Arab Rep.
Paraguay
El Salvador
Portugal
Bermuda
Afghanistan
Eritrea
Sao Tome and Principe
Estonia
Seychelles
Benin 33
Slovak Republic
Faeroe Islands
South Africa
Fiji
St. Kitts and Nevis
Finland
Sudan 29
France
Switzerland
French Polynesia
Brunei Darussalam
Gabon 27
Libya
Gambia, The 22
Lithuania
Georgia 12
Macao SAR, China
Germany
Madagascar
Belgium
Malaysia
Greece
Mali 26
Greenland
Marshall Islands
Grenada
Mauritius
Guam
Micronesia, Fed. Sts.
Guatemala
Monaco
Guinea 24
Montenegro
Guinea-Bissau 6
Bahrain
Guyana
Namibia
Haiti 35
Netherlands
Honduras 11
New Zealand
Hong Kong SAR, China
Niger 16
Hungary
Northern Mariana Islands
Iceland
Oman
India
Palau
Indonesia 11
Papua New Guinea
Angola
Albania
Andorra
Poland
Ireland
Puerto Rico
Isle of Man
Romania
Israel
Australia
Italy
San Marino
Jamaica
Saudi Arabia
Japan
Serbia 7
Jordan 12
Sierra Leone 27 25
Turks and Caicos Islands
Sint Maarten (Dutch part)
Thailand 7
Slovenia
Togo 37
Somalia
Trinidad and Tobago
South Sudan 26
Turkey
Sri Lanka
Armenia 14
St. Lucia
American Samoa
St. Vincent and the Grenadines
Yemen, Rep.
Suriname 17
Belarus 7
Sweden
Middle East (developing only)
Syrian Arab Republic 16
Lesotho 23
Tanzania 22
Ukraine 5
Timor-Leste 32
United Kingdom
Tonga
Uruguay
Tunisia 7
Vanuatu
Turkmenistan
Kenya
Tuvalu
Kiribati
Korea, Dem. Rep. 15
United Arab Emirates
Korea, Rep.
United States 8
Kuwait
Uzbekistan
Virgin Islands (U.S.)
Venezuela, RB
Kyrgyz Republic 18
Lao PDR 20
West Bank and Gaza 16
Latvia
Zambia
Lebanon

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