Region
United States
1,650
Soviet Union
157
Japan
142
Europe, Eastern
81
Eastern Europe
66
Hungary
50
China
47
Europe
47
Developing countries
46
Great Britain
37
États-Unis
24
Germany
24
Latin America
23
Asia
22
Poland
20
France
18
Cuba
15
Middle East
15
India
13
Romania
13
Israel
12
Vietnam
12
Africa
11
Germany (West)
11
USA
10
Etats-Unis
9
Europe, Central
9
Southern States
9
Communist countries
8
East Asia
8
Southeast Asia
8
Central Europe
7
Germany (East)
7
Italy
7
Massachusetts
7
Canada
6
Central America
6
Czechoslovakia
6
Korea (South)
6
Verenigde Staten
6
Yugoslavia
6
Europe, Western
5
Kentucky
5
Texas
5
Washington (D.C.)
5
Austria
4
Brazil
4
Korea
4
New York (State)
4
Pacific Area
4
more ...