Figure 1,,,,, Transit Ridership by Mode: 1990–2000,,,,, (Millions of unlinked trips),,,,, Year,Total,Bus,Heavy Rail,Commuter Rail,Light Rail 1990,"8,799","5,677","2,346",328,175 1991,"8,575","5,624","2,172",318,184 1992,"8,501","5,517","2,207",314,188 1993,"8,217","5,381","2,046",322,188 1994,"7,949","4,871","2,169",339,284 1995,"7,763","4,848","2,033",344,251 1996,"7,948","4,887","2,157",352,261 1997,"8,374","5,013","2,430",357,262 1998,"8,750","5,399","2,393",381,276 1999,"9,168","5,648","2,521",396,292 2000,"9,403","5,679","2,688",412,293 "NOTE: Total includes other modes not shown, such as ferry boats, inclined planes, and trolley buses.",,,,, "SOURCE: American Public Transportation Association, Public Transportation Fact Book 2001 (Washington, DC: 2001).",,,,,