TABLE 7a  Change in Domestic Freight Ton-Miles by Mode: 1990–2000,,,,,,,,,,,
(Index: 1990 = 1.00),,,,,,,,,,,

,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000
Air,1.00,0.98,1.08,1.18,1.30,1.38,1.42,1.50,1.53,1.57,1.63
Truck,1.00,1.02,1.05,1.09,1.16,1.22,1.25,1.31,1.34,1.39,1.41
Railroad,1.00,0.98,1.03,1.07,1.15,1.24,1.29,1.31,1.36,1.41,1.45
Water,1.00,1.02,1.03,0.95,0.98,0.97,0.92,0.85,0.81,0.79,0.77
Oil pipeline ,1.00,0.99,1.01,1.02,1.01,1.03,1.06,1.06,1.06,1.06,1.06
Total,1.00,1.00,1.03,1.03,1.09,1.13,1.15,1.15,1.17,1.19,1.20
"
SOURCES: Air, pipeline, and water—U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS), National Transportation Statistics 2002 (Washington, DC: 2002), table 1-44. Truck—BTS calculation based on USDOT, BTS, Transportation Statistics Annual Report 2000 (Washington, DC: 2001), p. 124; and USDOT, Federal Highway Administration, Highway Statistics 2001 (Washington, DC: 2002), table VM-1. Rail—BTS calculation based on Surface Transportation Board, Carload Waybill Sample; Transport Canada, Transportation in Canada (Ottawa, Ontario: Annual issues), table 12-1; Association of American Railroads, Railroad Facts (Washington, DC: 1991-2001 issues), page 36.",,,,,,,,,,,