FIGURE 4-4 Top 25 U.S. International Trade Freight Gateways by Value of Shipments: 2011
SOURCE: Air: U.S. Department of Commerce, Census Bureau, Foreign Trade Division, special tabulation, October 2012; Water: U.S. Army Corps of Engineers, Navigation Data Center, special tabulation, October 2012; Land: U.S. Department of Transporta- tion (USDOT), Bureau of Transportation Statistics (BTS), TransBorder Freight Data, special tabulation, available at http://www.bts. gov/programs/international/transborder/ as of October 2012; as cited in USDOT/BTS, National Transportation Statistics, available at http://www.bts.gov as of October 2013.