Billions of current dollars, except as noted
|Share of GDP (percent)||3.1||3.1||3.1||3.2||3.2||3.1||3.1||3.3||3.3||3.2||3.0|
KEY: GDP = Gross Domestic Product.
NOTES: For-hire transportation includes railroad transportation, local and interurban passenger transit, trucking and warehousing, water transportation, transportation by air, pipelines (except natural gas), and transportation services. Transportation services cover establishments furnishing services incidental to transportation (e.g., forwarding and packing services and the arrangement of passenger and freight transportation).
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, calculations based on data from U.S. Department of Commerce, Bureau of Economic Analysis, "Gross Domestic Product by Industry," available at http://www.bea.gov/bea/dn2/gpo.htm, as of February 2004.