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- United States20,831
- China8,060
- Great Britain7,182
- Japan4,822
- Germany4,418
- France4,263
- Italy4,097
- Europe3,898
- Indonesia3,784
- Latin America3,387
- Mexico3,331
- India3,265
- Soviet Union3,029
- Africa3,020
- Brazil2,925
- Spain2,863
- Developing countries2,655
- Russia (Federation)2,269
- Argentina2,197
- Canada2,121