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Number
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1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Air 0 0 110 0 0 0 0 0 0 0 0 Highway 11 7 8 12 13...Billions of current dollars
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1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Highway 33.5 33.6 35.4 38.4 38.7 40...Thousands of tons
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1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Rail replaced 824.3 728.8 657.6 803.3 642.7 679.0...Millions of current dollars
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1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 Highway -4,184 -4,394 -6,558 -8,391 -8,...1992 = 100
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1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 Air 100 102 109 114 123 127 131 138 145 137...Millions of passengers
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1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 American Airlines 15.1 16.5 16.8 17.0...Number of households (thousands)
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1993 2003 MSA—central city 5,797 4,985 MSA—suburb 2,458 2,824 Non-MSA urbanized area...Percent
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Structurally deficient Functionally obsolete Interstates 4.2 11.6 Other principal arterials 5.4 9.2 Minor arterials 8.4 11.0...Number
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1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Air 57 33 33 24 20 12 5 13 4 1 12 Highway 425 296 216...Millions
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1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Tons 1,397 1,470 1,550 1,611 1,585 1,649 1,717 1,738 1,742 1...