United States 41,877 Germany 2,916 Great Britain 2,622 Japan 2,329 Europe 2,260 Soviet Union 2,136 Russia (Federation) 2,070 China 2,061 India 1,757 Canada 1,684 France 1,487 Developing countries 1,287 California 1,181 Africa 1,177 Israel 1,174 Indonesia 1,147 Australia 1,093 Brazil 1,041 Latin America 972 Italy 890 Mexico 874 Germany (West) 819 Poland 673 Massachusetts 662 États-Unis 656 Thailand 649 Asia 647 Russia 644 États-Unis 608 New York (State) 606 Sweden 606 Philippines 538 European Union countries 523 Nigeria 514 South Africa 508 Netherlands 481 England 479 Antarctica 454 Colombia 443 Spain 441 Korea (South) 434 Austria 432 Vietnam 417 Cambridge 398 Arctic regions 394 North Carolina 387 Taiwan 383 Outer space 371 Argentina 364 Alaska 346 Pakistan 330 Switzerland 327 Illinois 318 Ukraine 310 Malaysia 304 Germany (East) 301 New Zealand 301 Europe, Eastern 289 Arab countries 288 Tropics 282 Egypt 278 Bulgaria 258 Turkey 258 Norway 257 Middle East 255 Southeast Asia 255 Pennsylvania 248 USA 245 Hungary 244 Southern States 244 Finland 241 Peru 236 Scandinavia 235 Bangladesh 232 Korea 225 Venezuela 216 New York 215 Arctic Regions 202 Greece 201 Denmark 200 Africa, Sub-Saharan 196 North America 196 Chile 194 European Economic Community countries 192 Florida 192 Maryland 190 Texas 188 Czechoslovakia 183 Ontario 180 Kenya 179 Belgium 173 Belarus 171 Bosnia and Herzegovina 170 Pacific Area 169 Czech Republic 168 Oregon 168 Caribbean Area 167 Iran 167 Colorado 165 Pacific Ocean 165