11431800 1961    14.8    39.0   1 19610513    4.00   7         
11431800 1962    18.3     178   1 19620215    2.80   5         
11431800 1963    30.7     882   1 19630131    3.00   1 19621002
11431800 1964    13.7    53.0   1 19631115    3.40   3         
11431800 1965    41.2    1250   1 19641222    2.80   3         
11431800 1966    12.6    74.0   1 19660402    1.90  12         
11431800 1967    35.8     233   1 19670316    2.40   5         
11431800 1968    18.0     160   1 19680221    2.70   2         
11431800 1969    39.5     906   1 19690120    2.80   3         
11431800 1970    32.9     591   1 19700116    3.20   9         
11431800 1971    24.1     397   1 19710326    3.00   1 19701002
11431800 1972    15.6     100   1 19720229    2.30   2         
11431800 1973    24.0     254   1 19730116    3.00   2         
11431800 1974    38.7     309   2             3.80   3         
11431800 1975    22.2     177   1 19750325    4.10   2         
11431800 1976    6.18    26.0   1 19751026    0.86   2         
11431800 1977    2.96    25.0   1 19770108    0.14   1 19770816
11431800 1978    29.8     288   1 19780305    0.73   1 19771012
11431800 1979    16.8     109   1 19790111    3.20  13         
11431800 1980    38.0    1410   1 19800113    3.20   1 19791007
11431800 1981    11.5     145   1 19810326    1.30   2         
11431800 1982    53.2    1260   1 19820216    2.30   2         
11431800 1983    64.8    1220   1 19830313    5.30   1 19821019
11431800 1984    38.7     613   1 19831225    4.20   2         
11431800 1985    15.9    88.0   1 19841128    3.10   5         
11431800 1986    51.1    2840   1 19860217    3.80   2         
11431800 1987    8.94     161   1 19870213    1.60   1 19870922
11431800 1988    6.49    26.0   1 19880105    0.92   2