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Subject (Region)
- United States27,655
- Washington (D.C.)605
- Alaska306
- California285
- Soviet Union187
- New Mexico176
- China159
- Europe133
- Hawaii127
- Iraq127
- Arizona124
- Washington (State)122
- New York (State)121
- Oregon119
- Canada114
- Florida108
- Mexico102
- Montana102
- Colorado100
- Nevada98