YR LN(Gas/Car) LN(Y/N) LN(Pmg/Pgdp) LN(Car/N) 1960.000 4.501986 -6.061726 -0.1957026 -9.326161 1961.000 4.482846 -6.000897 -0.2536184 -9.193136 1962.000 4.385449 -5.987477 -0.2187540 -9.047284 1963.000 4.353997 -5.973060 -0.2480094 -8.952783 1964.000 4.326436 -5.894741 -0.3065492 -8.852607 1965.000 4.249454 -5.859356 -0.3270154 -8.761954 1966.000 4.233643 -5.851866 -0.3961885 -8.681541 1967.000 4.203466 -5.823064 -0.4425737 -8.602121 1968.000 4.161687 -5.792260 -0.3520475 -8.533774 1969.000 4.173561 -5.722769 -0.4068792 -8.470459 1970.000 4.128807 -5.708307 -0.4404608 -8.427060 1971.000 4.103146 -5.676820 -0.4547395 -8.369399 1972.000 4.082808 -5.645991 -0.4991886 -8.334673 1973.000 4.137438 -5.595862 -0.4325718 -8.304602 1974.000 4.000461 -5.594866 -0.4251772 -8.300177 1975.000 4.033015 -5.612967 -0.3939543 -8.274632 1976.000 4.007739 -5.553939 -0.3536153 -8.244087 1977.000 4.005290 -5.538730 -0.3569092 -8.219858 1978.000 4.036601 -5.483074 -0.2906814 -8.195805