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- United States19,801
- China7,639
- Great Britain6,994
- Japan4,639
- Germany4,283
- France4,174
- Italy4,061
- Indonesia3,744
- Europe3,739
- Latin America3,278
- Mexico3,242
- India3,185
- Soviet Union2,901
- Africa2,892
- Brazil2,871
- Spain2,835
- Developing countries2,600
- Argentina2,160
- Russia (Federation)2,159
- Canada2,037