USSR 8.649 275 Asia
Canada 3.852 25 North America
China 3.705 1032 Asia
USA 3.615 237 North America
Brazil 3.286 134 South America
India 1.267 746 Asia
Mexico 0.762 78 North America
France 0.211 55 Europe
Japan 0.144 120 Asia
Germany 0.096 61 Europe
England 0.094 56 Europe