United States 175
Italy 57
European Union 15
Russian Federation 14
France 13
India 10
Iran, Islamic Republic of 7
Ireland 6
Germany 6
Netherlands 2
South Africa 2
Japan 2
Canada 2
Austria 1
United Kingdom 1
Finland 1
Nigeria 1
Bolivia, Plurinational State of 1
Mexico 1
Chile 1
Romania 1