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- United States42,444
- Developing countries4,514
- Great Britain4,147
- Europe4,099
- India3,955
- Mexico3,577
- China3,567
- Latin America2,949
- Brazil2,560
- Canada2,545
- European Union countries2,524
- Africa2,460
- California2,287
- North America2,264
- Australia2,133
- Japan2,133
- Asia1,732
- Peru1,676
- Argentina1,672
- Soviet Union1,414