TABLE 2 Comparisons of Various Survey Estimates of Public Transportation Mode Share,,,,,,,,
Year,"Census journey-to- work, usual mode","American Community Survey, work trips, usual mode","American Housing Survey, work trips, usual mode","NHTS work trips, survey day, actual mode","NHTS work trips, usual mode",NPTS/ NHTS all trips,"NHTS 2001 all trips, adjusted",
1969,,,,,,3.40,,
1970,8.90,,,,,,,
1977,,,,,,2.70,,
1980,6.40,,,,,,,
1983,,,,,,2.70,,
1990,5.30,,,4.60,,2.20,,
1995,,,,3.56,5.11,1.81,,
1997,,,4.58,,,,,
1999,,,4.90,,,,,
2000,4.70,5.07,,,,,,
2001,,5.10,4.72,3.67,5.05,1.56,1.76,
2002,,5.00,,,,,,