"Table 3 
Transportation Investment as Percentage of GDP by Sector, 1977-2000",,,,,,,,,,,,,,,,,,,,,,,,
,1977,1978,1979,1980,1981,1982,1983,1984,1985,1986,1987,1988,1989,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000
Government,0.88,0.88,0.94,0.95,0.87,0.79,0.75,0.82,0.84,0.85,0.83,0.83,0.84,0.88,0.86,0.84,0.86,0.87,0.84,0.83,0.85,0.86,0.90,0.86
Private Business,2.00,2.16,2.22,1.84,1.71,1.46,1.56,1.65,1.67,1.62,1.40,1.44,1.23,1.24,1.45,1.48,1.56,1.78,1.83,1.88,1.91,1.98,2.24,2.13
Households,3.89,4.02,3.73,3.12,3.15,3.19,3.48,3.80,4.23,4.49,4.37,4.02,4.14,3.68,3.22,3.57,3.83,3.57,3.61,3.26,3.48,3.71,3.67,3.76
"Sources: 
BTS calculations based on data from U.S. Department of Commerce, Bureau of Economic Analysis (BEA), ""Fixed Assets and Consumer Durables,"" ""National Income and Product Account (NIPA) Tables,"" available at http://www.bea.gov, as of July 2002; and personal communication with BEA.",,,,,,,,,,,,,,,,,,,,,,,,