50092000 1967    28.1     465   2             6.80   1 19670428
50092000 1968    37.7     744   1 19680614    4.80   4         
50092000 1969    67.5    2470   1 19690521    9.20   1 19690504
50092000 1970    67.1    1130   1 19691122    11.0   3         
50092000 1971     106    4030   1 19701007    14.0   2         
50092000 1972    43.4     968   1 19720811    8.00   2         
50092000 1973    41.1    1050   1 19721008    5.80   5         
50092000 1974    29.3     400   1 19731011    5.90   1 19740615
50092000 1975    69.4    4780   1 19750916    10.0   3         
50092000 1976    61.9    1160   1 19751209    14.0   2         
50092000 1977    45.4     821   1 19770923    8.00   1 19770603
50092000 1978    95.8    3450   1 19771124    14.0   2         
50092000 1979     117    3120   1 19790831    6.50   1 19790404
50092000 1980    46.0     582   1 19791004    8.70   1 19800917
50092000 1981    52.2     715   1 19810605    9.00   1 19810123
50092000 1982    60.7    1270   1 19811227    15.0  11         
50092000 1983    66.8    1030   1 19830616    10.0   1 19830416
50092000 1984    44.2     512   1 19840917    9.00   1 19840505
50092000 1985    67.7    1900   1 19841103    8.30   1 19850630
50092000 1986    67.2    2570   1 19851006    7.00   1 19860426
50092000 1987    44.3     854   1 19861112    8.50   1 19870402
50092000 1988    89.6    1730   1 19871127    11.0   2