50028000 1961    65.9    1200   1 19610916    21.0   3         
50028000 1962    36.3     258   1 19611001    16.0   5         
50028000 1963    63.7    2170   1 19630517    12.0   3         
50028000 1964    38.0     702   1 19631102    12.0   5         
50028000 1965    45.4     527   1 19650813    10.0   4         
50028000 1966    59.7     720   1 19651210    20.0   1 19660413
50028000 1967    36.5     262   1 19670910    9.40   1 19670526
50028000 1968    47.8     329   1 19680821    11.0   2         
50028000 1969    71.1    2000   1 19681127    20.0   3         
50028000 1970    52.1     435   1 19700509    15.0   2         
50028000 1971    57.7     306   1 19701106    22.0   2         
50028000 1972    51.0     595   1 19720325    11.0   3         
50028000 1973    38.2     537   1 19730929    9.80   2         
50028000 1974    34.0     242   1 19740610    10.0   5         
50028000 1975    60.2    1520   1 19750916    11.0   3         
50028000 1976    42.4     480   1 19760926    12.0   4         
50028000 1977    32.1     451   1 19761029    7.80   1 19770503
50028000 1978    45.7     696   1 19771113    14.0   4         
50028000 1979    64.4    1440   1 19790831    13.0   4         
50028000 1980    53.0     787   1 19800527    17.0   6         
50028000 1981    47.3     312   1 19810929    18.0   1 19810321
50028000 1982    42.8     728   1 19811109    14.0   1 19820425
50028000 1983    29.9     137   1 19821124    8.30   1 19830410
50028000 1984    44.0     269   1 19831022    6.50   1 19840512
50028000 1985    50.5    1890   1 19850518    17.0   2         
50028000 1986    68.6    1510   1 19851007    14.0   2         
50028000 1987    35.7     233   1 19861119    14.0   1 19870829
50028000 1988    39.5     403   1 19880824    12.0   3