Figure 6,,
"Modal Shares of U.S. International Merchandise
Trade by Value and Weight: 2001 ",,
(Percent),,
,Value,Weight
Water,38.4,77.7
Air,27.7,0.4
Truck,21.1,11
Rail,4.9,5.9
Pipeline,1.4,4.8
Other and unknown,6.5,0.2
"SOURCES: U.S. Department of Transportation, Bureau of Transportation Statistics, May 2002, based on: total, water, and air data—U.S. Department of Commerce, U.S. Census Bureau, Foreign Trade Division, U.S. Exports of Merchandise CD and U.S. Imports of Merchandise CD, December 2001; truck, rail, pipeline, and other and unknown data—U.S. Department of Transportation, Bureau of Transportation Statistics, Transborder Surface Freight Data, 2001; and special tabulations.",,