08175000 1931 14.9 384 1 19310203 0.30 1 19310908 08175000 1932 85.4 4900 1 19320430 0.000 1 19320811 08175000 1933 50.5 4680 1 19330801 0.30 37 08175000 1934 71.7 3450 1 19340303 0.20 9 08175000 1960 50.2 3320 1 19600627 0.000 26 08175000 1961 348 16500 1 19610619 0.000 4 08175000 1962 25.3 1090 1 19611115 0.000 12 08175000 1963 14.8 746 1 19630219 0.10 63 08175000 1964 31.1 1100 1 19640427 0.10 13 08175000 1965 144 5870 1 19650218 0.10 1 19650922 08175000 1966 110 3310 1 19651020 0.27 1 19660823 08175000 1967 341 67900 1 19670922 0.10 6 08175000 1968 218 5700 1 19680122 3.70 1 19680826 08175000 1969 171 6070 1 19690414 0.080 1 19690824 08175000 1970 37.5 570 1 19700319 0.20 2 08175000 1971 44.3 3360 1 19710919 0.12 2 08175000 1972 198 16900 1 19720508 1.40 3 08175000 1973 220 16700 1 19730614 2.80 1 19721014 08175000 1974 233 7330 1 19731012 1.50 1 19740804 08175000 1975 173 4000 1 19750526 7.20 1 19750925 08175000 1976 67.3 1620 1 19760420 2.50 1 19760819 08175000 1977 339 13500 1 19770417 1.10 3 08175000 1978 47.7 1460 1 19771103 0.74 1 19780723 08175000 1979 240 5410 1 19790421 5.80 1 19781021 08175000 1980 34.1 1550 1 19800909 0.69 1 19800803 08175000 1981 287 61900 1 19810901 2.40 3 08175000 1982 41.2 1980 1 19820525 1.10 3 08175000 1983 45.3 1290 1 19830921 1.60 4 08175000 1984 23.0 942 1 19831108 0.80 1 19840902 08175000 1985 33.0 598 1 19850317 1.00 2 08175000 1986 54.1 1800 1 19851124 2.20 3 08175000 1987 344 14200 1 19870604 1.70 2 08175000 1988 8.71 198 1 19871222 0.74 3