Germany 1,525
United States 538
Russian Federation 105
China 48
Belgium 37
Italy 37
Brazil 33
Poland 32
Austria 28
Switzerland 28
Netherlands 26
Canada 26
Ukraine 17
United Kingdom 16
Spain 15
European Union 11
Finland 10
Czech Republic 10
Japan 9
Hungary 9
France 8
Australia 8
Denmark 6
Turkey 6
Romania 5
Bulgaria 5
Norway 4
Sweden 3
Mexico 3
Argentina 3
Greece 3
Indonesia 3
Belarus 3
Ecuador 2
Kazakhstan 2
Moldova, Republic of 2
Ireland 2
Portugal 2
Cyprus 2
Kenya 2
Korea, Republic of 2
Israel 2
India 1
Philippines 1
South Africa 1
Liechtenstein 1
Slovakia 1
Chile 1
Colombia 1
Uruguay 1
Serbia 1
Iceland 1
Venezuela, Bolivarian Republic of 1
Luxembourg 1
Thailand 1
El Salvador 1