News release: “Total shipments of goods in the United States accounted for nearly $11.7 trillion in revenue and 12.5 billion tons in 2007, according to new data released jointly by the Bureau of Transportation Statistics and the U.S. Census Bureau. That is up from $8.4 trillion and 11.7 billion tons in 2002. These figures come from the 2007 Commodity Flow Survey, conducted every five years as part of the Census Bureau’s 2007 Economic Census…Trucks were used to haul approximately 71 percent of the total value of commodities shipped in 2007, representing more than $8.3 trillion and 8.8 billion tons. An estimated $436.4 billion worth of commodities, or approximately 1.9 billion tons, were shipped by rail. Other modes of transportation included air, water and pipeline.”