11475560 1968    19.5     315   1 19680115    0.82   1 19680813
11475560 1969    34.9     580   1 19690112    0.92  17         
11475560 1970    31.6     896   1 19700123    0.50   3         
11475560 1971    38.1     652   1 19701203    0.50  14         
11475560 1972    21.2     430   1 19720123    0.80   4         
11475560 1973    27.1     370   1 19730116    0.81  13         
11475560 1974    54.4    1470   1 19740116    0.67   5         
11475560 1975    28.3     634   1 19750318    0.67  18         
11475560 1976    12.7     278   1 19760226    0.88   8         
11475560 1977    2.12    18.0   1 19770309    0.39  20         
11475560 1978    34.8     553   1 19780116    0.87   4         
11475560 1979    15.3     171   1 19790111    0.79  18         
11475560 1980    25.8     323   1 19800113    0.66   2         
11475560 1981    13.2     215   1 19810128    0.27   6         
11475560 1982    37.5     612   1 19811219    0.70   3         
11475560 1983    48.4     357   1 19821216    0.89   3         
11475560 1984    27.3     251   1 19831207    0.48   1 19840930
11475560 1985    16.2     203   1 19850208    0.49   9         
11475560 1986    28.4     970   1 19860217    0.60   7         
11475560 1987    14.6     149   1 19870313    0.45   1 19870930
11475560 1988    16.0     420   1 19871210    0.41   1 19871008