Nigeria 39,192
European Union 26,489
United States 21,522
Norway 7,676
United Kingdom 6,002
South Africa 4,253
China 859
Brazil 567
Germany 424
Russian Federation 416
Netherlands 390
France 352
India 268
Canada 251
Ghana 184
Italy 181
Ireland 158
Benin 111
Turkey 98
United Arab Emirates 85
Kenya 82
Spain 72
Malaysia 71
Australia 60
Cameroon 57
Mexico 57
Philippines 54
Finland 50
Côte d'Ivoire 47
Ukraine 46
Sweden 43
Poland 41
Singapore 38
Switzerland 36
Indonesia 35
Pakistan 32
Colombia 32
Tanzania, United Republic of 32
Belgium 31
Portugal 31
Thailand 30
Korea, Republic of 29
Austria 28
Romania 25
Uganda 25
Georgia 24
Saudi Arabia 21
Iceland 20
Bulgaria 20
Greece 20
Egypt 20
Japan 19
Israel 18
Argentina 18
Chile 17
Dominican Republic 17
Lebanon 17
Morocco 16
Ethiopia 15
Mauritius 15
Viet Nam 14
Serbia 14
Ecuador 13
Senegal 13
Namibia 13
Hong Kong 13
Qatar 13
Iran, Islamic Republic of 12
Togo 12
Hungary 11
Botswana 11
Denmark 11
Venezuela, Bolivarian Republic of 10
Zimbabwe 10
Czech Republic 10
Bangladesh 10
Jamaica 9
New Zealand 9
Algeria 9
Peru 9
Trinidad and Tobago 9
Bosnia and Herzegovina 9
Sri Lanka 9
Zambia 8
Uruguay 8
Taiwan, Province of China 8
Azerbaijan 7
Slovenia 7
Sierra Leone 7
Jordan 7
Albania 7
Liberia 6
Belarus 6
Guinea 6
Cyprus 6
Gambia 6
Oman 6
Angola 5
Slovakia 5
Iraq 5
Armenia 5
Malta 5
Nepal 4
Bahamas 4
Estonia 4
Gabon 4
Lithuania 3
Nicaragua 3
Burundi 3
Malawi 3
Rwanda 3
Kuwait 3
Barbados 3
Saint Vincent and the Grenadines 3
Luxembourg 3
Paraguay 3
Bolivia, Plurinational State of 3
Costa Rica 3
Croatia 3
Mozambique 3
Burkina Faso 3
Congo 2
Congo, The Democratic Republic of the 2
Dominica 2
Mongolia 2
Antigua and Barbuda 2
Lesotho 2
Mauritania 2
Yemen 2
Kyrgyzstan 2
Kazakhstan 2
Fiji 2
Liechtenstein 2
Macedonia, The Former Yugoslav Republic of 1
Aruba 1
Equatorial Guinea 1
Tunisia 1
Bahrain 1
Syrian Arab Republic 1
Saint Lucia 1
Cambodia 1
Palestinian Territory, Occupied 1
Niger 1
Puerto Rico 1
Brunei Darussalam 1
New Caledonia 1
Uzbekistan 1
Réunion 1
Swaziland 1
French Polynesia 1
Chad 1
Macao 1
Panama 1
Honduras 1
Latvia 1
Libyan Arab Jamahiriya 1
Maldives 1
Sao Tome and Principe 1
Belize 1