More than 76 percent of U.S. congressional districts witnessed their exports growth to China outperform other markets, fresh evidence of the close trade ties between the world's top two economies, a report released Last Wednesday showed.

"Exports to China from U.S. congressional districts outpaced their exports to the rest of the world. Out of 435 districts, 333 districts had higher growth in exports to China in 2010 than they did to the rest of the world," said the U.S.-China Business Council (USCBC) in its annual "U.S. Congressional District Exports to China" report.

Exports to China are a vital part of the U.S. economy. China is the third largest export market for the United States and is growing faster than many of other major destinations for American manufactured goods and agriculture products, said USCBC Vice President Erin Ennis.

The nearly 76 billion U.S. dollars combined growth in exports to China during 2000 to 2010 exceeded growth in every other market for U.S. goods and farm products. U.S. exports to Canada and Mexico rose 69.3 dollars billion and 52 billion dollars, respectively. Brazil was a distant fourth with just a 20 billion dollars increase, according to the USCBC report.

"What is most satisfying about this report is that in 2010, 404 congressional districts increased exports to China," added Ennis.

The USCBC is a private, nonpartisan and nonprofit organization of roughly 240 leading American companies doing business with China.