United States - 945
China - 451
Russia - 426
Germany - 92
Japan - 91
Great Britain - 51
France - 38
Canada - 34
Latvia - 32
Spain - 31
Ireland - 23
Ukraine - 20
India - 16
South Africa - 14
Iran - 12
Singapore - 12
Netherlands - 11
Sweden - 11
Italy - 9
Czech Republic - 8
Turkey - 8
Lithuania - 7
Poland - 7
Brazil - 6
Austria - 5
Australia - 5
Romania - 5
Vietnam - 5
Belgium - 4
Luxembourg - 4
Kazakhstan - 4
Greece - 3
Finland - 3
Israel - 3
Hungary - 3
Europe - 3
Kuwait - 2
Nigeria - 2
Thailand - 2
South Korea - 2
Denmark - 2
Bulgaria - 1
Portugal - 1
Slovakia - 1
Chile - 1
Laos - 1
Belarus - 1
Philippines - 1
New Zealand - 1
Albania - 1
Estonia - 1
Croatia - 1
Norway - 1
Iceland - 1
Panama - 1
Switzerland - 1
