Table 1-27: Age and Availability of Amtrak Locomotive and Car Fleets ,,,,,,,,,,,,,,, ,1972,1975,1980,1985,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000 Locomotives,,,,,,,,,,,,,,, % available for servicea,N,87,83,93,84,86,83,84,85,88,88,88,88,90,89 Average age (years)b,22.3,14.4, 7.4, 7.0,12.0,13.0,13.0,13.2,13.4,13.9,14.4,12.0,12.6,12.8,11.2 ,,,,,,,,,,,,,,, Passenger and other train cars,,,,,,,,,,,,,,, % available for servicea,N,82,77,90,90,92,90,89,88,90,90,91,93,91,91 Average age (years)b,22.0,24.7,14.3,14.2,20.0,21.0,21.5,22.6,22.4,21.8,20.7,R19.8,R21.1,R22.2,19.4 KEY: N = data do not exist; R = revised.,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,, a Year-end daily average. Active units less backshop units undergoing heavy maintenance less back-ordered units undergoing progressive maintenance and running repairs.,,,,,,,,,,,,,,, b Year-end average.,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,, NOTE: 1972 was Amtrak's first full fiscal year of operation.,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,, SOURCES:,,,,,,,,,,,,,, "1972-80: Amtrak, Amtrak Annual Report (Washington, DC: Annual issues).",,,,,,,,,,,,,, "1985-99: Ibid., Amtrak Annual Report, Statistical Appendix (Washington, DC: Annual issues).",,,,,,,,,,,,,, "2000: Ibid., Amtrak Annual Report, Statistical Appendix (Washington, DC: Annual issues).",,,,,,,,,,,,,,