United States 222
Europe 22
China 18
Soviet Union 14
Japan 12
East Asia 11
Pacific Area 10
Developing countries 8
India 8
Russia (Federation) 8
Asia 6
South Asia 6
Africa 5
Southeast Asia 5
Afghanistan 4
European Union countries 4
Latin America 4
Middle East 4
Pakistan 4
Persian Gulf Region 4
South Africa 4
Bulgaria 3
France 3
Korea 3
Africa, Sub-Saharan 2
Arab countries 2
Asia, Central 2
Europe, Central 2
Former Soviet republics 2
Germany 2
Germany (West) 2
Iraq 2
Israel 2
Korea (South) 2
Mexican-American Border Region 2
Russia 2
Saudi Arabia 2
Ukraine 2
Africa, Southern 1
Alaska 1
Alaska Highway 1
Australia 1
Austria 1
Azad Kashmir (Pakistan) 1
Brazil 1
Canada 1
Caribbean Area 1
Caucasus, South 1
Central America 1
Cuba 1
Czech Republic 1
Europe, Eastern 1
Great Britain 1
Hungary 1
Indian Ocean Region 1
Indonesia 1
Iran 1
Ireland 1
Jammu and Kashmir 1
Jammu and Kashmir (India) 1
Malaya 1
Mali 1
Mediterranean Region 1
Mexico 1
New Zealand 1
North America 1
Persian Gulf States 1
Philippines 1
Poland 1
Scandinavia 1
Spain 1
Sub-Saharan Africa 1
Sweden 1
Turkey 1
Vietnam 1
Western countries 1
Yugoslavia 1