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Subject (Region)
- United States22,515
- California402
- Canada371
- Great Britain280
- New York (State)269
- États-Unis212
- France194
- Washington (D.C.)181
- Europe168
- Soviet Union168
- China143
- Mexico135
- Massachusetts120
- Japan118
- Texas112
- West (U.S.)107
- Illinois106
- Pennsylvania105
- New York104
- Alaska101