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Charts courtesy of the Los Angeles County Economic Development Corporation.

The ports of Los Angeles and Long Beach make up the nation’s largest port complex—and as of now, China is its biggest trading partner, with a two-way trade valued at $173.1B and creating an impressive 200% increase in the value of Los Angeles County exports to China over the past decade.

According to the Los Angeles County Economic Development Corporation’s newest report on international trade [look below for full report], the port complex handles nearly 37% of the U.S.’s trade with China.

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Chinese trade increased by 3.6% from 2012. Chinese trade marked three #1s for the port complex: the highest imports unloaded ($137.7B), highest US exports to China ($35.4B), and a trade deficit of $102.3B.

Additionally, export volume—referring to the number of containers, or TEUs, shipped to the ports—rose from 1,392,415 TEUs in 2012 to 1,515,561 TEUs in 2013.

Japan was the port complex’s second largest trading partner in 2013, with a two-way trade valued at $43.5B. It marks a 9.9% drop in value, the first drop since 2009.

Read more:

International Trade Outlook for Southern California