TABLE 22 Measures of U.S. Railroad Freight Traffic Volume: 1991-2001
TABLE 22 Measures of U.S. Railroad Freight Traffic Volume: 1991-2001(Millions)
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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,...