50115000 1965    15.6     213   1 19641021    2.50   4         
50115000 1966    12.3     131   1 19660720    3.00   1 19660323
50115000 1967    11.1     204   1 19670910    1.80   7         
50115000 1968    19.3     175   1 19680927    2.30   2         
50115000 1969    23.4     192   1 19681009    4.00   4         
50115000 1970    19.7     255   1 19700828    3.00   4         
50115000 1971    24.1     900   1 19701009    3.50   1 19710329
50115000 1972    12.5     126   1 19711102    2.50   1 19720804
50115000 1973    12.2     174   1 19730804    1.10   1 19730529
50115000 1974    8.04    96.0   2             1.70   3         
50115000 1975    24.6    2440   1 19750916    2.60   2         
50115000 1976    15.1     212   1 19751023    2.30   4         
50115000 1977    14.0     300   1 19761008    1.50   1 19770503
50115000 1978    15.3     163   1 19771101    3.30   1 19780604
50115000 1979    38.0    1110   1 19790831    2.10   1 19790506
50115000 1980    18.5     322   1 19800529    2.20   1 19800423
50115000 1981    21.8     462   1 19810523    3.10   5         
50115000 1982    24.3     520   1 19820913    2.40   3         
50115000 1983    18.1     298   1 19830421    3.40   1 19830305
50115000 1984    13.5     319   1 19840918    1.20   1 19840508
50115000 1985    23.6     982   1 19850518    2.40   2         
50115000 1986    28.4    1450   1 19851007    3.00   1 19860427
50115000 1987    18.8     182   1 19870622    2.00   1 19870828
50115000 1988    24.6     765   1 19871127    2.50   3