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- United States132,184
- Canada7,759
- California2,205
- European Union countries1,928
- Europe1,761
- Developing countries1,720
- Washington (D.C.)1,686
- Alaska1,501
- Colorado1,349
- Soviet Union1,261
- Latin America1,211
- European Economic Community countries1,131
- New York (State)1,090
- China1,085
- Washington (State)1,060
- Texas1,052
- Oregon1,032
- Florida1,030
- New Mexico846
- Massachusetts815