16345000 1960 12.8 241 1 19600330 0.37 1 19591022 16345000 1961 11.5 200 1 19610213 0.93 1 19610918 16345000 1962 11.5 319 1 19620312 0.48 2 16345000 1963 16.9 719 1 19630415 0.34 1 19621209 16345000 1964 11.9 229 1 19640322 0.60 1 19631205 16345000 1965 19.7 424 1 19650502 0.93 4 16345000 1966 14.4 309 1 19651114 0.11 1 19660603 16345000 1967 18.3 243 1 19661012 0.48 1 19661004 16345000 1968 14.4 653 1 19680316 0.19 2 16345000 1969 18.9 825 1 19690201 0.070 2 16345000 1970 11.6 289 1 19700103 0.28 4 16345000 1971 15.4 430 1 19710423 0.040 2 16345000 1972 11.8 346 1 19720122 0.13 2 16345000 1973 7.95 127 1 19730220 0.18 1 19730122 16345000 1974 17.7 640 1 19740419 0.63 1 19740918 16345000 1975 10.6 381 1 19741121 0.010 2 16345000 1976 11.6 250 1 19751125 0.30 1 19751018 16345000 1977 7.84 129 1 19761116 0.000 2 16345000 1978 9.41 275 1 19780628 0.000 1 19780218 16345000 1979 11.7 198 1 19790210 0.15 3 16345000 1980 18.4 685 1 19800318 0.38 1 19800222 16345000 1981 9.20 227 1 19810507 0.070 1 19810126 16345000 1982 29.7 782 1 19811028 0.57 1 19811012 16345000 1983 9.78 184 1 19821029 0.010 1 19830331 16345000 1984 7.24 258 1 19840419 0.000 3 16345000 1985 9.73 292 1 19850506 0.000 13 16345000 1986 13.3 494 1 19860929 0.000 4 16345000 1987 14.4 173 1 19861110 0.43 1 19870316 16345000 1988 20.7 664 1 19871231 0.60 1 19880921