Country name 2010 2012 2014
Chad 74.0 25.0
Sudan 39.0 3.0 6.0
Bolivia 15.0 3.0 3.0
Mongolia 14.0 5.0 1.0
Venezuela, RB 9.4 7.0 8.0
Tajikistan 7.0 2.0 14.0
Azerbaijan 7.0
Angola 6.0 5.0
Uganda 5.5
Ethiopia 5.0 4.0 14.0
Mali 5.0 5.0
Gambia, The 4.6 2.0
Myanmar 4.6 1.0 1.0
Algeria 4.6 8.0 3.0
Gabon 4.3 1.0
Burkina Faso 4.0
Spain 4.0 1.0 3.0
Estonia 4.0 1.0 1.0
Russian Federation 4.0 2.0 2.0
Qatar 3.8 2.0 7.0
Argentina 3.7 5.0 2.0
Germany 3.6 1.0 1.0
Chile 3.5 2.0 1.0
Lebanon 3.4 2.0 2.0
Cameroon 3.4 18.0 3.0
Libya 3.2 2.0
Tanzania 3.2 7.0
Nicaragua 3.2 8.0 8.0
Jordan 3.2 3.0 2.0
Yemen, Rep. 3.1
Poland 3.0 4.0 1.0
Turkmenistan 3.0
Namibia 3.0 2.0 2.0
Uruguay 3.0 14.0 1.0
Eritrea 3.0
Slovak Republic 3.0 2.0 2.0
Kenya 3.0 2.0 3.0
Ghana 2.9 2.0 4.0
Canada 2.8 2.0 1.0
United States 2.8 2.0 2.0
Brazil 2.8 2.0 2.0
China 2.8 3.0 2.0
Australia 2.6 4.0 2.0
Malaysia 2.6 3.0 1.0
Iran, Islamic Rep. 2.6 3.0 7.0
Switzerland 2.6 6.0 1.0
Italy 2.6 3.0 1.0
Guatemala 2.6 4.0 2.0
Nigeria 2.5 4.0 4.0
United Arab Emirates 2.5 1.0 2.0
Czech Republic 2.5
Syrian Arab Republic 2.5 3.0
India 2.3 3.0 2.0
Pakistan 2.3 3.0 3.0
Saudi Arabia 2.3 5.0 8.0
South Africa 2.3 2.0 2.0
Dominican Republic 2.2 2.0 2.0
Turkey 2.2 2.0 2.0
Singapore 2.2 2.0 2.0
Indonesia 2.1 2.0 3.0
Mexico 2.1 3.0 2.0
Ecuador 2.1 2.0 3.0
Peru 2.0 1.0 3.0
Kuwait 2.0 2.0 1.0
Israel 2.0 2.0
Serbia 2.0 1.0
Morocco 2.0 3.0
Austria 2.0 2.0
Romania 2.0 2.0 2.0
Mauritania 2.0 8.0 1.0
Bosnia and Herzegovina 2.0 2.0 1.0
Afghanistan 2.0 5.0
Sierra Leone 2.0 2.0
Lithuania 2.0 1.0
Kyrgyz Republic 2.0 1.0 1.0
Maldives 2.0 4.0 2.0
Bulgaria 2.0 2.0 1.0
Costa Rica 2.0 2.0 1.0
Congo, Dem. Rep. 2.0 88.0
Philippines 1.8 3.0 2.0
Nepal 1.8 3.0
Netherlands 1.8 2.0 1.0
Tunisia 1.7 2.0 1.0
Albania 1.7 11.0 1.0
Hong Kong SAR, China 1.7 1.0 1.0
Luxembourg 1.7 1.0
Ukraine 1.7 2.0 5.0
Belgium 1.7 2.0 2.0
Finland 1.6 4.0 2.0
Korea, Rep. 1.6 2.0 1.0
Thailand 1.6 2.0 1.0
Panama 1.4 2.0 2.0
Vietnam 1.4 2.0 1.0
Bangladesh 1.4 3.0 2.0
Senegal 1.4 7.0 1.0
Uzbekistan 1.4 18.0
Cambodia 1.3 2.0 1.0
Sri Lanka 1.3 2.0 2.0
Latvia 1.3 1.0
New Zealand 1.3 2.0
Egypt, Arab Rep. 1.3 2.0 2.0
Denmark 1.0 2.0 1.0
Cote d'Ivoire 1.0 2.0
Slovenia 1.0
Bahrain 1.0 2.0 1.0
Croatia 1.0 1.0 2.0
Sweden 1.0 1.0
Norway 1.0 1.0
Ireland 1.0 1.0
Japan 1.0 1.0 2.0
Armenia
Liberia
Fiji
Macao SAR, China
Timor-Leste
Macedonia, FYR
Colombia 4.0 3.0
Madagascar 2.0
Swaziland
Malawi
Haiti 6.0 1.0
Zambia 5.0 3.0
Liechtenstein
Belize
Solomon Islands
Lao PDR 2.0
St. Martin (French part)
Malta 2.0 1.0
Taiwan, China
Marshall Islands
Burundi 6.0 1.0
Equatorial Guinea
Brunei Darussalam
Mauritius 1.0 1.0
Sao Tome and Principe
El Salvador 2.0
Seychelles
Micronesia, Fed. Sts.
Benin 6.0
Moldova
Bermuda
Monaco
St. Kitts and Nevis
Bahamas, The 3.0 1.0
Antigua and Barbuda
Montenegro 7.0
Central African Republic
France 2.0 1.0
Iceland 1.0
Mozambique
Faeroe Islands
Dominica
Tuvalu
Djibouti 3.0
United Kingdom 3.0 2.0
French Polynesia
Vanuatu
Korea, Dem. Rep.
San Marino
New Caledonia
Congo, Rep. 11.0
Kiribati
Iraq 3.0
Belarus 2.0
Comoros
Niger
Sint Maarten (Dutch part)
Cyprus 1.0
Greece 1.0 5.0
Northern Mariana Islands
Somalia
Kazakhstan 2.0
South Sudan
West Bank and Gaza
Greenland
Guam
St. Lucia
Palau
St. Vincent and the Grenadines
Barbados
Suriname
Papua New Guinea
Grenada
Paraguay
Cayman Islands
Cuba
Andorra
Tonga
Hungary 2.0 1.0
Honduras 3.0 2.0
Togo 3.0
Jamaica 14.0
Trinidad and Tobago
Portugal 2.0 3.0
Cabo Verde
Puerto Rico
Turks and Caicos Islands
Georgia 6.0 1.0
American Samoa
Isle of Man
Bhutan
Aruba
Guyana
Rwanda
Guinea-Bissau
Samoa
Guinea
Oman
Virgin Islands (U.S.)
Curacao
Botswana
Lesotho
Zimbabwe 4.0 2.0

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