Region
Europe
Europe --
20
United States
5
United States --
5
Asia
2
Japan
2
Japan --
2
Middle East
2
Russia (Federation)
2
Russia (Federation) --
2
Soviet Union --
2
ASEAN countries --
1
Asia --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Canada
1
China
1
China --
1
European Union Countries
1
Germany
1
Germany --
1
Great Britain
1
Great Britain --
1
Islamic Countries --
1
Middle East --
1
Russia --
1
Soviet Union
1
State, The
1
Turkey
1
Turkey --
1