TABLE 22  Measures of U.S. Railroad Freight Traffic Volume: 1991–2001,,,,,,,,,,,
(Millions),,,,,,,,,,,
,,,,,,,,,,,
,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001
Tons ,"1,383","1,399","1,397","1,470","1,550","1,611","1,585","1,649","1,717","1,738","1,742"
Carloads,21,21,22,23,24,24,25,26,27,28,27
"SOURCE: Association of American Railroads, Railroad Facts (Washington, DC: 2001 and 2002 issues).",,,,,,,,,,,
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