Region
United States
Europe
21
Japan
13
Europe, Eastern
9
Balkan Peninsula
7
China
6
Russia (Federation)
4
Bosnia and Herzegovina
3
East Asia
3
Poland
3
Asia, Eastern
2
Bulgaria
2
Foreign countries
2
Former Soviet republics
2
Hungary
2
Iran
2
Mexico
2
Southern States
2
Asia
1
California
1
Central America
1
Cuba
1
Cyprus
1
Czech Republic
1
Developing countries
1
Egypt
1
Eurasia
1
Europe, Central
1
Europe, Western
1
European Economic Community countries
1
European Union countries
1
Haiti
1
Israel
1
Korea (South)
1
Kosovo (Republic)
1
Kuwait
1
Marine Corps Air Station Futenma (Japan)
1
Massachusetts
1
Middle East
1
North Macedonia
1
Okinawa Island
1
Romania
1
Somalia
1
South America
1
Vietnam
1
West Virginia
1
Yugoslavia
1