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Subject (Region)
- United States18,837
- Indonesia3,179
- Germany2,660
- Great Britain2,448
- New York (State)2,313
- Japan2,120
- France2,109
- Canada1,960
- China1,952
- California1,671
- Mexico1,629
- India1,495
- Italy1,333
- Soviet Union1,229
- Argentina1,188
- South Africa1,133
- Pennsylvania1,090
- Illinois1,064
- Massachusetts1,041
- Connecticut961