United States 6,953
China 2,133
Developing countries 1,301
Great Britain 1,266
European Union countries 812
Soviet Union 785
Europe 741
India 691
Japan 603
Latin America 602
Europe, Eastern 549
Africa 457
Germany 433
Russia (Federation) 370
Asia 363
France 363
Mexico 351
East Asia 272
European Economic Community countries 255
Brazil 227
Korea (South) 213
Southeast Asia 212
Canada 199
Africa, Sub-Saharan 155
Spain 152
America 146
Eastern Europe 146
Argentina 142
Poland 138
Australia 133
Chile 133
Vietnam 131
Indonesia 125
Colorado 124
Former Soviet republics 124
Middle East 121
Italy 120
Taiwan 118
Turkey 113
Cuba 109
Caribbean Area 105
Russia 104
Germany (West) 102
Ireland 101
South Africa 101
Greece 100
Hungary 100
Europe, Central 98
Sweden 94
Egypt 87
Germany (East) 84
Pacific Area 84
Peru 81
Colombia 77
Communist countries 77
Ukraine 75
Nigeria 73
Malaysia 71
Pakistan 71
Thailand 68
Arab countries 67
Central America 66
Israel 65
OECD countries 65
Philippines 65
South Asia 65
Korea (North) 62
Iran 60
Singapore 60
Ghana 57
Tanzania 54
Saudi Arabia 53
Yugoslavia 52
Romania 51
Asia, Central 50
Bolivia 50
Kuwait 48
Korea 47
Netherlands 47
Austria 46
North America 46
Portugal 46
Hong Kong (China) 45
New Zealand 45
New York (State) 44
Haiti 43
Czechoslovakia 41
Venezuela 40
Bangladesh 39
Burma 39
Africa, North 38
Kenya 38
Sub-Saharan Africa 37
England 35
Ecuador 34
Norway 34
Belgium 33
Bulgaria 33
Morocco 33
Kazakhstan 32