United States 1,607
China 585
Developing countries 393
Great Britain 303
Soviet Union 258
Japan 179
Latin America 176
India 163
European Union countries 157
Africa 139
Europe 139
Europe, Eastern 135
Germany 114
Asia 110
Russia (Federation) 110
Eastern Europe 103
Canada 99
East Asia 95
Mexico 88
Korea (South) 78
France 73
Brazil 65
Southeast Asia 61
Chile 50
European Economic Community countries 49
Indonesia 48
Argentina 43
Africa, Sub-Saharan 40
Vietnam 38
Cuba 36
Australia 35
Former Soviet republics 34
Middle East 34
Taiwan 33
Hungary 31
Greece 30
Malaysia 30
South Africa 30
Sub-Saharan Africa 30
Pacific Area 28
OECD countries 27
Poland 27
Korea (North) 26
Turkey 26
Caribbean Area 25
Colombia 25
Egypt 25
Ireland 25
Philippines 25
Pakistan 24
Germany (West) 23
Italy 23
Nigeria 23
Peru 23
Tanzania 23
America 22
Communist countries 22
Europe, Central 22
Hong Kong (China) 21
Ukraine 21
Ghana 20
Southern States 20
Sweden 20
Yugoslavia 20
South Asia 19
États-Unis 18
Spain 18
Venezuela 18
Africa, North 17
North America 17
New York (State) 16
Puerto Rico 16
Arab countries 15
Central Europe 15
Chine 15
Nepal 15
Romania 15
Uganda 15
Central America 14
Germany (East) 14
Israel 14
New Zealand 14
Russia 14
Thailand 14
Asia, Central 13
England 13
Saudi Arabia 13
Singapore 13
Hong Kong 12
Iran 11
Kazakhstan 11
Kenya 11
Netherlands 11
Portugal 11
Québec (Province) 11
Austria 10
Costa Rica 10
Czech Republic 10
Former communist countries 10
Morocco 10