Country name 2011 2012 2013 2014
Papua New Guinea 0
Sweden 0 0 1
Cayman Islands 0 0 0
United Kingdom 0 0
Ukraine 0 0 0
Belarus 0 0 0
Kazakhstan 0 0 0
Kyrgyz Republic 0 0
Armenia 0 0
China 0 0 0
Macedonia, FYR 0
Indonesia 0 0 0
Bosnia and Herzegovina 0 0 0
Finland 0 0 0
Tajikistan 0 0 0
Georgia 0 0
Croatia 0 0
St. Lucia 0 0 1
Ireland 2 0
Sri Lanka 1 0
Lithuania 0 1 1
Botswana 1
Serbia 1 1 1
Lao PDR 1 1 1
Cyprus 1 1
Paraguay 1 1
Czech Republic 1 1 3
Slovenia 0 1 3
Cuba 1 1 1
Bulgaria 1 1 1
Israel 1 1 1
Fiji 1 1
Slovak Republic 1 1 1
Romania 1 1
Cambodia 1 1 1
Tanzania 1 5
Solomon Islands 1 1 1
Mexico 1 1
Sudan 1
Azerbaijan 2 1
Saudi Arabia 1 2 1 1
Poland 2 2 2
Greece 2 2
Malta 1 2
Germany 2 2 2
Samoa 2 2
Denmark 1 2 1
United Arab Emirates 2 2 1
Switzerland 2 2
West Bank and Gaza 2 2 1
Oman 2 2 7
Austria 2 2 2
Bahrain 2 2 1
Hong Kong SAR, China 3 2
Ecuador 2 3 5
Italy 3 3
Pakistan 3 3 2
Turkey 2 3 3
Iran, Islamic Rep. 3 3
Ghana 3 3 2 4
Peru 4 3 3
Gambia, The 4 3
Estonia 4 3 3
Hungary 3 3 4
Bangladesh 4 3
Latvia 4 3 3
Bolivia 4 3 4
Colombia 3 3 2
Kuwait 3
Bhutan 3 3 4
El Salvador 3 4
Panama 5 4
Maldives 6 4
Yemen, Rep. 4 6
Venezuela, RB 4 4
Guatemala 2 4 3
France 5 4 4
Belize 6 4 4
Nepal 5 4 4 4
Antigua and Barbuda 6 4
Syrian Arab Republic 5 4 4
Brunei Darussalam 5 5 4
Dominica 8 5
Dominican Republic 4 6
Belgium 6 6 3
Egypt, Arab Rep. 6 6
Andorra 6 6 4
Zambia 7 7 7
Macao SAR, China 8 7 7
Djibouti 6 7 9 8
Argentina 9 7
Mauritania 8 8
Sierra Leone 14 8
Luxembourg 8 8
Ethiopia 8
Lebanon 9 8 9
Eritrea 8 9 13
Spain 10 10
Mauritius 10 10 10
Swaziland 10 11
Congo, Dem. Rep. 11 10
Chile 10 11 6
Equatorial Guinea 12 11
Morocco 12 12 11 12
Madagascar 10 12 11
Malawi 12 12
Lesotho 13 14
Algeria 13 13 14
Mozambique 14 14 15
Central African Republic 14
Cameroon 13 14
Senegal 15 16 19
Cote d'Ivoire 17 17 18
Congo, Rep. 17
Cabo Verde 18 18 17
Namibia 18
Niger 19 19 16
Guinea 14 22 24
Chad 21 23 41
Togo 26 24 22
Burundi 25 25 22
Burkina Faso 21 26 23
Honduras 3
Libya
Guam
India
Micronesia, Fed. Sts.
Afghanistan
Moldova 0
Rwanda
Monaco 2
Comoros 18
Mongolia
South Sudan 6
Montenegro
Suriname 13
Marshall Islands
Iceland
Guinea-Bissau
San Marino 0
Myanmar
Korea, Rep. 0 0
Mali 20 33
Sint Maarten (Dutch part)
Grenada
Somalia
Netherlands
Canada
New Caledonia
St. Vincent and the Grenadines
New Zealand
Jamaica 1
Nicaragua
Jordan 1
Guyana
Russian Federation
Nigeria
Costa Rica 7
Northern Mariana Islands
Sao Tome and Principe 21 17
Norway
Liechtenstein 0
Malaysia
Seychelles
Bermuda 3
Singapore
Thailand
Korea, Dem. Rep.
Haiti
Liberia 5
Trinidad and Tobago
South Africa
Barbados
Kiribati
Turks and Caicos Islands 1
St. Kitts and Nevis 3 3
Uganda
St. Martin (French part)
Australia
Iraq
Isle of Man
Kenya
Greenland
Gabon
Brazil
Palau 5 1
Benin 23 23
French Polynesia
Timor-Leste 2
Faeroe Islands
Tonga
Japan
Tunisia 14
United States
Turkmenistan
Uzbekistan
Tuvalu 0
Angola
Bahamas, The
Virgin Islands (U.S.)
Aruba
Philippines 1
Uruguay
Curacao
Vanuatu 3
Portugal
Vietnam 1
Albania
American Samoa
Puerto Rico
Qatar 2 48
Zimbabwe

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