With the development of global free trade and economic integration, many countries have became important trade partners of the United States. I tried to analyze the dataset of U.S. International trade in goods and services to find some connections among these countries and the U.S.
Source: U.S. Census Bureau, U.S. International Trade in Goods and Services, December and Annual Revisions for 2010, Series FT-900 (10).
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Internet release date: 09/30/2011