Region
Soviet Union
1,247
United States
629
China
75
Germany
60
Europe
56
Great Britain
53
Russia (Federation)
44
Europe, Eastern
42
Middle East
34
Developing countries
27
Russia
25
Poland
24
Berlin (Germany)
20
Cuba
19
Japan
18
Afghanistan
16
Iran
15
Canada
12
Germany (West)
12
Baltic States
11
Hungary
11
Latin America
10
Turkey
10
Arab countries
9
Berlin
9
Israel
9
Yugoslavia
9
Asia
8
Czechoslovakia
8
East Asia
8
Egypt
8
France
8
Germany (East)
7
Austria
6
Communist countries
6
Eastern Europe
6
Europe, Western
6
India
6
Alaska
5
Balkan Peninsula
5
Belarus
5
Caribbean Area
5
Finland
5
Italy
5
Central America
4
Romania
4
Ukraine, Western
4
Africa, Southern
3
Asia, Central
3
Bulgaria
3
more ...