Table A4 Truck Ton-Miles,,,,,,,,,,,,,,
(billions),,,,,,,,,,,,,,
,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003p
"Intercity truck (NTS, Eno)1, 2 ",735,758,815,861,908,921,972,996,"1,027","1,059","1,074","1,051",,
"All truck, 1997 base (improved BTS)",854,874,896,936,996,"1,042","1,071","1,119","1,149","1,186","1,203","1,224","1,255","1,264"
"1 U.S. Department of Transportation, Bureau of Transportation Statistics, National Transportation Statistics (Washington, DC: 2003), table 1-44.",,,,,,,,,,,,,,
"2 Eno Transportation Foundation, Transportation in America (Washington, DC: 2002), p. 42.",,,,,,,,,,,,,,
Key: p = preliminary.,,,,,,,,,,,,,,