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- United States31,939
- Great Britain8,693
- China4,611
- Developing countries3,786
- Europe3,696
- India2,908
- France2,235
- Japan2,032
- England1,886
- Canada1,868
- Germany1,509
- Asia1,507
- Latin America1,466
- Africa1,413
- European Union countries1,201
- New York (State)1,081
- Soviet Union1,076
- Australia990
- Russia (Federation)988
- Mexico977