In 2014, the U. S. traded over $4 trillion worth of international goods, ranging from raw agriculture to advanced precision instruments, according to a study by the Brookings Institute.
The country relies on 25 port complexes—a group of ports within one place—to move 85% of all internationally traded goods.
The ports also tend to specialize in moving specific commodities, which affects their average value and determines common trading partners.
Here’s a look at the top ten ports.