Nigeria 65,040
United States 36,980
European Union 35,433
South Africa 22,214
United Kingdom 8,272
Ireland 1,797
Norway 1,482
Netherlands 473
Ghana 383
France 249
India 239
Canada 217
United Arab Emirates 209
Italy 185
Russian Federation 162
Germany 161
Philippines 144
Malaysia 128
Kenya 127
Oman 85
Korea, Republic of 83
Singapore 82
Egypt 75
Saudi Arabia 75
Benin 74
Myanmar 73
Zambia 71
Romania 68
Côte d'Ivoire 61
Tanzania, United Republic of 59
Indonesia 44
Brazil 44
Cameroon 43
Pakistan 34
Australia 34
Libyan Arab Jamahiriya 33
Turkey 33
Uganda 31
Switzerland 30
China 29
Viet Nam 29
Togo 29
Ukraine 28
Zimbabwe 27
Sierra Leone 27
Lebanon 26
Thailand 26
Japan 25
Qatar 23
Iceland 23
Mexico 21
Spain 21
Czech Republic 20
Sweden 20
Gambia 20
Finland 19
Bangladesh 17
Cambodia 17
Liberia 16
Greece 16
Luxembourg 16
Hong Kong 15
Mozambique 15
Namibia 14
Portugal 13
Senegal 12
Austria 12
Botswana 11
Poland 11
Trinidad and Tobago 10
Georgia 10
Niger 10
Malawi 10
Argentina 9
Hungary 9
Belgium 9
Azerbaijan 8
Iraq 8
New Zealand 8
Afghanistan 8
Colombia 7
Algeria 7
Jordan 7
Jamaica 7
Mali 7
Mauritius 7
Bulgaria 6
Israel 6
Burkina Faso 6
Gabon 6
Angola 5
Rwanda 5
Guinea 5
Nepal 5
Denmark 5
Taiwan, Province of China 5
Tunisia 5
Haiti 5
Mauritania 4
Moldova, Republic of 4
Papua New Guinea 4
Iran, Islamic Republic of 4
Morocco 4
Chile 4
Kuwait 4
Costa Rica 4
Slovakia 4
Latvia 3
Serbia 3
Bosnia and Herzegovina 3
United States Minor Outlying Islands 3
Lesotho 3
Albania 3
Ethiopia 3
Mongolia 3
Estonia 3
Swaziland 3
Seychelles 3
Panama 2
Cyprus 2
Congo 2
Somalia 2
Bahrain 2
Guyana 2
Lithuania 2
Dominica 2
Venezuela, Bolivarian Republic of 2
Peru 2
Bahamas 2
Honduras 2
Paraguay 2
Vanuatu 2
Uruguay 2
Dominican Republic 1
Kazakhstan 1
Madagascar 1
Saint Lucia 1
Suriname 1
Slovenia 1
Jersey 1
Aruba 1
Solomon Islands 1
Syrian Arab Republic 1
Malta 1
Uzbekistan 1
Brunei Darussalam 1
Micronesia, Federated States of 1
Sudan 1
Lao People's Democratic Republic 1
Yemen 1
Congo, The Democratic Republic of the 1
Guam 1
Palestinian Territory, Occupied 1
Ecuador 1
Puerto Rico 1
Croatia 1
Bolivia, Plurinational State of 1
Sri Lanka 1
Cape Verde 1
Armenia 1
Equatorial Guinea 1
Kiribati 1
El Salvador 1