Data for figure 5,
"
Growth in U.S. Domestic Freight Ton-Miles: 1980 - 2004",
(Billions),
Year,Ton-miles
1980,"3,352.98 "
1981,"3,318.09 "
1982,"3,151.62 "
1983,"3,211.92 "
1984,"3,297.76 "
1985,"3,273.58 "
1986,"3,290.13 "
1987,"3,434.25 "
1988,"3,554.65 "
1989,"3,523.28 "
1990,"3,584.42 "
1991,"3,597.43 "
1992,"3,706.41 "
1993,"3,727.45 "
1994,"3,904.16 "
1995,"4,061.14 "
1996,"4,131.49 "
1997,"4,136.02 "
1998,"4,186.42 "
1999,"4,259.35 "
2000,"4,285.20 "
2001,"4,316.72 "
2002,"4,366.05 "
2003,"4,356.70 "
2004,"4,453.77 "
"
SOURCE:  U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics: 1990 - 2003 data from the Journal of Transportation and Statistics, Volume 8 Number 1, 2005, Pages 23-44; other data are special tabulations from BTS using the same methodology. ",