Region
United States --
63
United States
46
Europe --
41
Soviet Union --
37
China --
35
Great Britain --
27
Europe, Eastern --
24
Middle East --
21
Soviet Union
20
Africa --
17
Europe
17
Great Britain
16
South Africa --
16
India --
15
Japan --
15
Latin America --
14
China
13
Europe, Eastern
13
Indonesia --
12
Philippines --
12
South Africa
12
France --
11
Germany --
11
Asia --
10
Iran --
10
Latin America
10
India
9
Taiwan --
9
Arab countries --
8
Asia
8
France
8
Indonesia
8
Mexico --
8
Argentina --
7
Germany
7
Germany (West) --
7
Philippines
7
Africa
6
Asia, Southeastern --
6
Austria --
6
Former Soviet republics --
6
Russia (Federation) --
6
Sudan --
6
Arab countries
5
Egypt --
5
Iran
5
Kenya --
5
Middle East
5
Nigeria --
5
Pakistan --
5
more ...