U U U 10.9 11.0 11.2 a Excludes boats, noncommercial trailers and aircraft.
Data are preliminary.
Data are revised. Data are unavailable. The total percent of transportation in GDP was not calculated due to the unavailability of data for government and private sector purchases. United States U.S. Department of Transportation. Bureau of Transportation Statistics, April 1999 based on data from the U.S. Department of Commerce.