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
Brunei Darussalam
Tajikistan 23
Brazil
Nicaragua
Cabo Verde
Solomon Islands
Botswana
Belarus 7
Bosnia and Herzegovina 9
American Samoa
Canada
Panama
Cayman Islands
Australia
Bolivia
St. Martin (French part)
Chad 28
Liechtenstein
Chile
Maldives
China
Moldova
Colombia 8
Bahrain
Comoros 32
Norway
Congo, Dem. Rep. 24 28
Azerbaijan
Congo, Rep. 18
Samoa
Armenia 14
Singapore
Cote d'Ivoire 27
Spain
Croatia
Swaziland 13
Argentina
Liberia 31
Curacao
Luxembourg
Cyprus
Malawi 26
Czech Republic
Malta
Denmark
Mexico
Djibouti
Mongolia 22
Dominica
Myanmar
Dominican Republic 11
New Caledonia
Ecuador
Bahamas, The
Egypt, Arab Rep.
Pakistan 20
El Salvador
Paraguay
Bhutan 12
Portugal
Eritrea
Albania
Estonia
Sao Tome and Principe
Bermuda
Seychelles
Faeroe Islands
Slovak Republic
Fiji
South Africa
Finland
St. Kitts and Nevis
France
Sudan 29
French Polynesia
Switzerland
Gabon 27
Bulgaria
Gambia, The 22
Libya
Georgia 12
Lithuania
Germany
Macao SAR, China
Benin 33
Madagascar
Greece
Malaysia
Greenland
Mali 26
Grenada
Marshall Islands
Guam
Mauritius
Guatemala
Micronesia, Fed. Sts.
Guinea 24
Monaco
Guinea-Bissau 6
Montenegro
Guyana
Barbados
Haiti 35
Namibia
Honduras 11
Netherlands
Hong Kong SAR, China
New Zealand
Hungary
Niger 16
Iceland
Northern Mariana Islands
India
Oman
Indonesia 11
Palau
Antigua and Barbuda
Papua New Guinea
Angola
Algeria
Ireland
Poland
Isle of Man
Puerto Rico
Israel
Romania
Italy
Austria
Jamaica
San Marino
Japan
Saudi Arabia
Jordan 12
Serbia 7
Turkey
Sierra Leone 27 25
Turks and Caicos Islands
Sint Maarten (Dutch part)
Thailand 7
Slovenia
Togo 37
Somalia
Trinidad and Tobago
South Sudan 26
Aruba
Sri Lanka
Vanuatu
St. Lucia
Andorra
St. Vincent and the Grenadines
Yemen, Rep.
Suriname 17
Belgium
Sweden
Afghanistan
Syrian Arab Republic 16
Lesotho 23
Tanzania 22
Ukraine 5
Timor-Leste 32
United Kingdom
Tonga
Uruguay
Tunisia 7
Kenya
Turkmenistan
Kiribati
Tuvalu
Korea, Dem. Rep. 15
Korea, Rep.
United Arab Emirates
Kosovo
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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