Figure 5
Increases in U.S. Commercial Freight Shipments and Related Growth Factors: 1993–2002*

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KEY: * 2002 data used in these calculations are preliminary.

NOTE: The value of freight shipments, manufacturer's sales, wholesale trade sales, retail trade sales, and gross domestic product are based on inflation-adjusted chained 2000 dollars.
The value, tons, and ton-miles data in this figure include the Bureau of Transportation Statistics estimates of out-of-scope missing pieces. See notes on table 1 for additional information on the BTS estimates.

SOURCES: U.S. Department of Transportation, Bureau of Transportation Statistics:
Value, tons, and ton-miles are based on 1993 and preliminary 2002 Commodity Flow Survey data plus additional estimates from Bureau of Transportation Statistics.

GDP chained dollars—U.S. Department of Commerce, Bureau of Economic Analysis, National Economic Accounts, Gross Domestic Product, Current-Dollar and "Real" GDP. Available at: http://www.bea.doc.gov/bea/dn/home/gdp.htm, as of October 2003.

Employment, total—Bureau of Labor Statistics, "Current Population Survey," data query, available at: http://www.bls.gov/cps/home.htm, as of Jan. 5, 2004.

Wholesale and retail trade sales—U.S. Census Bureau, "Monthly Wholesale Trade Survey," available at: http://www.census.gov/svsd/www/mwts.html, as of Jan. 5, 2004.