16897900 1971 5.92 67.0 1 19710717 0.51 2 16897900 1972 6.72 138 1 19720504 0.55 1 19720123 16897900 1973 3.83 58.0 1 19730614 0.13 1 19730203 16897900 1974 5.99 58.0 1 19740711 0.41 2 16897900 1975 4.55 46.0 1 19750425 0.18 13 16897900 1976 7.37 93.0 1 19760908 0.38 1 19760209 16897900 1977 4.77 87.0 1 19770423 0.21 2 16897900 1978 4.66 75.0 1 19780126 0.38 4 16897900 1979 5.66 103 1 19790801 0.48 2 16897900 1980 6.40 82.0 1 19791202 0.43 1 19800330 16897900 1981 4.02 43.0 1 19810807 0.35 3 16897900 1982 7.81 124 1 19820901 0.67 1 19820302 16897900 1983 2.50 55.0 1 19821113 0.020 1 19830419 16897900 1984 4.17 46.0 1 19831024 0.18 1 19840520 16897900 1985 5.04 37.0 1 19841016 0.49 2 16897900 1986 6.05 81.0 1 19860724 0.80 3 16897900 1987 5.22 56.0 1 19870313 0.35 1 19870523 16897900 1988 3.71 51.0 1 19871213 0.24 1 19880226