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Subject (Region)
- United States61,320
- Great Britain9,239
- Germany6,252
- Japan5,926
- France5,881
- China5,257
- Italy4,729
- Canada4,131
- Indonesia3,154
- Mexico3,057
- Europe2,945
- India2,861
- California2,625
- England2,418
- Soviet Union2,300
- Brazil2,102
- Spain1,926
- Developing countries1,558
- Russia (Federation)1,360
- Australia1,336