Visual: 86 percent of the total import and export container traffic moves through the top 10 ports
(Table showing the top 10 U.S. container ports and their percentage of total container traffic in 2010)
Source: U.S. Department of Transportation, Maritime Administration, Port Import Export Reporting Service (PIERS); data collected from Vessel as of November 8, 2011. Units: The statistics are shown in TEUs. A TEU is a nominal unit of measure equivalent to a 20' x 8' x 8' shipping container.