Region
United States --
56
United States
49
China --
17
Europe --
13
Soviet Union --
13
China
10
Soviet Union
10
Great Britain
9
Great Britain --
9
Japan --
8
Europe
7
Middle East --
7
Taiwan --
7
Asia --
6
Germany --
6
Iran --
6
Latin America --
6
Asia
5
Asia, Southeastern --
5
Central America
5
Central America --
5
Germany
5
Iran
5
Taiwan
5
Europe, Eastern
4
Europe, Eastern --
4
Latin America
4
Middle East
4
Asia, Southeastern
3
Australia --
3
Cambodia --
3
India --
3
Indonesia
3
Indonesia --
3
Israel
3
Israel --
3
Malaysia
3
Malaysia --
3
Russia (Federation)
3
Russia (Federation) --
3
Syria
3
Syria --
3
United states --
3
Australia
2
Burma --
2
Chile --
2
East Asia
2
East Asia --
2
European Union countries --
2
Former Soviet republics
2
more ...