Nigeria 28,708
Egypt 8,843
United States 1,813
Oman 723
Turkey 716
South Africa 452
United Arab Emirates 389
Saudi Arabia 354
Kuwait 260
Qatar 196
United Kingdom 116
European Union 115
Romania 55
Ghana 49
Canada 46
France 44
Germany 41
Sweden 37
Cameroon 36
Italy 28
Belgium 21
Niger 19
India 18
Poland 17
Benin 16
Ireland 16
Brazil 15
Iraq 14
Viet Nam 14
Iran, Islamic Republic of 13
Pakistan 12
Ukraine 12
Algeria 11
Netherlands 10
Russian Federation 10
Bangladesh 10
Australia 9
Argentina 8
Indonesia 8
Israel 7
Spain 7
Denmark 7
Côte d'Ivoire 7
Singapore 7
Gambia 7
Czech Republic 7
Croatia 6
Philippines 5
Dominican Republic 5
Belarus 5
Libyan Arab Jamahiriya 5
Austria 5
Thailand 4
Senegal 4
Gabon 4
Ethiopia 4
Saint Kitts and Nevis 4
Chad 3
Ecuador 3
China 3
Lebanon 3
Hong Kong 3
Mali 3
Malaysia 3
Nepal 3
Mexico 3
Bulgaria 2
Liberia 2
Mauritius 2
Lithuania 2
Japan 2
Uruguay 2
Morocco 2
Portugal 2
Antigua and Barbuda 2
Burkina Faso 2
Moldova, Republic of 2
Jamaica 2
Cape Verde 2
Haiti 2
Myanmar 1
Azerbaijan 1
Greece 1
Costa Rica 1
Korea, Republic of 1
Peru 1
Kazakhstan 1
Colombia 1
Uzbekistan 1
Syrian Arab Republic 1
Jordan 1
Uganda 1
Equatorial Guinea 1
Anguilla 1
Georgia 1
Guinea 1
Zimbabwe 1
Burundi 1
Guyana 1
Central African Republic 1
Lao People's Democratic Republic 1
Taiwan, Province of China 1
Rwanda 1
Malta 1
Switzerland 1
Norway 1
Bahrain 1
Guatemala 1