time price power economy (yr) ($) (hp) (mpg) 1975 1.53 136 15.8 1976 1.57 134 17.5 1977 1.58 133 18.3 1978 1.50 124 19.9 1979 1.83 119 20.3 1980 2.27 100 23.5 1981 2.28 099 25.1 1982 2.01 099 26.0 1983 1.86 104 25.9 1984 1.73 106 26.3 1985 1.65 111 27.0 1986 1.23 111 27.9 1987 1.21 112 28.1 1988 1.15 116 28.6 1989 1.19 121 28.1 1990 1.29 129 27.7 1991 1.21 132 28.0 1992 1.16 139 27.7 1993 1.12 141 28.0