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- United States132,998
- Canada7,844
- California2,229
- European Union countries1,927
- Developing countries1,780
- Europe1,749
- Washington (D.C.)1,695
- Alaska1,524
- Colorado1,361
- Latin America1,265
- Soviet Union1,221
- European Economic Community countries1,167
- New York (State)1,107
- Washington (State)1,074
- China1,066
- Texas1,060
- Oregon1,044
- Florida1,039
- Pennsylvania933
- New Mexico853