"Table 4 
Investment in Transportation Infrastructure 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,0.77,0.78,0.83,0.85,0.77,0.73,0.71,0.74,0.75,0.77,0.78,0.76,0.73,0.77,0.77,0.74,0.76,0.77,0.73,0.73,0.75,0.76,0.79,0.76,
Private business,0.21,0.19,0.18,0.18,0.17,0.14,0.15,0.14,0.16,0.12,0.11,0.10,0.10,0.10,0.09,0.10,0.10,0.10,0.10,0.11,0.11,0.14,0.14,0.12,
Total,0.98,0.96,1.02,1.03,0.94,0.87,0.86,0.89,0.91,0.89,0.88,0.87,0.83,0.87,0.86,0.84,0.86,0.87,0.83,0.83,0.86,0.90,0.93,0.88,
"Sources: 
BTS calculations based on data from U.S. Department of Commerce, Bureau of Economic Analysis (BEA), ""Fixed Assets and Consumer Durables,"" available at http://www.bea.gov, as of July 2002; and personal communication with BEA.",,,,,,,,,,,,,,,,,,,,,,,,,