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

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