Region
United States
173
Europe
21
Soviet Union
6
Russia (Federation)
5
Developing countries
4
Great Britain
4
Japan
4
Latin America
4
Europe, Eastern
3
Germany
3
Iraq
3
Asia
2
Europe, Central
2
European Union countries
2
Hungary
2
Middle East
2
Arab countries
1
Bosnia and Hercegovina
1
Budapest (Hungary)
1
Caribbean Area
1
Czech Republic
1
Ethiopia
1
Eurasia
1
Europe, Western
1
European Economic Community countries
1
Foreign countries
1
France
1
Iran
1
Korea
1
Mexican-American Border Region
1
Nicaragua
1
Philippines
1
Poland
1
Southern States
1
Sweden
1
Texas
1
UnitedStates
1