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Subject (Region)
- United States1,616
- Great Britain64
- European Union countries57
- Europe29
- Canada28
- Australia22
- New York (State)16
- Washington (D.C.)16
- China15
- District of Columbia15
- European Economic Community countries14
- California12
- Sweden9
- Developing countries8
- Bangladesh7
- New Jersey7
- North Carolina7
- Washington (State)7
- India6
- New South Wales6