10153800 1964    41.8     322   1 19640606    3.80   5         
10153800 1965    51.4     360   1 19650607    3.40   1 19641008
10153800 1966    26.7     195   1 19660509    2.70   1 19660310
10153800 1967    47.1     324   1 19670620    3.90   4         
10153800 1968    43.7     398   1 19680605    2.60   2         
10153800 1969    41.4     283   1 19690527    4.40   3         
10153800 1970    35.0     303   1 19700528    4.10   2         
10153800 1971    48.3     442   1 19710617    5.00   1 19710929
10153800 1972    40.3     342   2             3.80   3         
10153800 1973    39.8     350   1 19730519    3.90   1 19721003
10153800 1974    43.4     391   1 19740528    3.90   6         
10153800 1975    51.3     515   1 19750608    3.70   2         
10153800 1976    31.1     247   1 19760520    5.10  16         
10153800 1977    11.4    83.0   1 19770603    2.00  63         
10153800 1978    44.0     397   1 19780613    3.50   6         
10153800 1979    31.9     358   1 19790528    2.60   1 19790930
10153800 1980    43.4     367   1 19800611    2.50   2         
10153800 1981    31.1     247   1 19810531    3.80   1 19801007
10153800 1982    48.7     318   1 19820527    5.90   1 19811001
10153800 1983    53.2     414   1 19830530    6.20   3         
10153800 1984    50.3     422   1 19840531    5.00   1 19840118
10153800 1985    43.6     252   1 19850504    6.40   2         
10153800 1986    68.9     539   1 19860602    7.30   2         
10153800 1987    25.4     181   1 19870519    3.90   1 19870328
10153800 1988    23.9     228   1 19880517    2.90   1 19880908