Region
Communist countries
United States
190
Europe, Eastern
45
Eastern Europe
20
Soviet Union
16
China
14
Europe
14
Developing countries
11
Russia
10
Japan
9
Germany (West)
8
Austria
6
European Economic Community countries
6
Pays socialistes
6
Great Britain
5
Canada
4
Colombia
4
Cuba
4
Europe, Central
4
Korea (South)
4
Baltic States
3
Former Soviet republics
3
Germany (East)
3
Hungary
3
Romania
3
Asia
2
Australia
2
Belgium
2
Brazil
2
Central Europe
2
Commonwealth of Independent States
2
Finland
2
Germany
2
Afghanistan
1
Africa
1
Berlin
1
Berlin (Germany)
1
Commerce
1
Communist Countries
1
Czechoslovakia
1
EE. UU
1
East Asia
1
Europe de l'Est
1
Europe, Southern
1
European, Eastern
1
Finance
1
Greece
1
Korea
1
Latin America
1
Oriente y Occidente
1
more ...