FIGURE 6 Transit Mode Share Trends—Survey Data,,,,,,,,,,, ,Percentage using transit,,,,,,,,,, ,"Census journey-to-work, usual mode",NPTS/NHTS all trips,"NPTS/NHTS work trips, survey day, actual mode","NHTS work trips, usual mode",NHTS 2001 adjusted,"American Housing Survey, work trips, usual mode","American Community Survey, work trips, usual mode",,,, 1969,,3.40%,,,,,,,,, 1969.5,,,,,,,,,,, 1970,8.90%,,,,,,,,,, 1970.5,,,,,,,,,,, 1971,,,,,,,,,,, 1971.5,,,,,,,,,,, 1972,,,,,,,,,,, 1972.5,,,,,,,,,,, 1973,,,,,,,,,,, 1973.5,,,,,,,,,,, 1974,,,,,,,,,,, 1974.5,,,,,,,,,,, 1975,,,,,,,,,,, 1975.5,,,,,,, 1976,,,,,,, 1976.5,,,,,,, 1977,,2.70%,,,,, 1977.5,,,,,,, 1978,,,,,,, 1978.5,,,,,,, 1979,,,,,,, 1979.5,,,,,,, 1980,6.40%,,,,,, 1980.5,,,,,,, 1981,,,,,,, 1981.5,,,,,,, 1982,,,,,,, 1982.5,,,,,,, 1983,,2.70%,,,,, 1983.5,,,,,,, 1984,,,,,,, 1984.5,,,,,,, 1985,,,,,,, 1985.5,,,,,,, 1986,,,,,,, 1986.5,,,,,,, 1987,,,,,,, 1987.5,,,,,,, 1988,,,,,,, 1988.5,,,,,,, 1989,,,,,,, 1989.5,,,,,,, 1990,5.30%,2.20%,4.60%,,,, 1990.5,,,,,,, 1991,,,,,,, 1991.5,,,,,,, 1992,,,,,,, 1992.5,,,,,,, 1993,,,,,,, 1993.5,,,,,,, 1994,,,,,,, 1994.5,,,,,,, 1995,,1.81%,3.56%,5.11%,,, 1995.5,,,,,,, 1996,,,,,,, 1996.5,,,,,,, 1997,,,,,,4.58%, 1997.5,,,,,,, 1998,,,,,,, 1998.5,,,,,,, 1999,,,,,,4.90%, 1999.5,,,,,,, 2000,4.70%,,,,,,5.07% 2000.5,,,,,,, 2001,,,,,,4.72%,4.90% 2001.5,,1.56%,3.67%,5.05%,1.76%,, 2002,,,,,,,4.80% 2002.5,,,,,,, 2003,,,,,,,4.70% 2003.5,,,,,,, 2004,,,,,,,4.60%