16518000 1915 34.2 727 1 19150427 3.10 5 16518000 1917 30.4 1130 1 19161223 0.93 8 16518000 1923 39.6 591 1 19230112 2.80 1 19221229 16518000 1924 43.1 1070 1 19240213 2.00 1 19240705 16518000 1925 45.2 1830 1 19241121 3.40 4 16518000 1926 15.6 452 1 19260121 1.10 2 16518000 1927 33.0 1580 1 19270103 2.20 5 16518000 1928 37.9 608 1 19280726 1.60 1 19280323 16518000 1929 40.1 1200 1 19290217 1.40 3 16518000 1930 63.7 1160 1 19300408 1.20 1 19291116 16518000 1931 38.4 1100 1 19301118 1.90 3 16518000 1932 53.7 955 1 19320213 3.30 1 19320901 16518000 1933 20.1 976 1 19330307 0.77 1 19321115 16518000 1934 33.1 1810 1 19340425 1.40 1 19331124 16518000 1935 39.7 1860 1 19350225 3.70 1 19350212 16518000 1936 26.5 317 1 19360406 1.80 1 19360218 16518000 1937 65.4 821 1 19361229 4.20 1 19361023 16518000 1938 56.2 1870 1 19380407 3.80 2 16518000 1939 37.7 1040 1 19390227 5.10 2 16518000 1940 26.7 860 1 19400825 2.50 3 16518000 1941 31.1 815 1 19410630 2.60 1 19410223 16518000 1942 64.2 1660 1 19420309 2.50 3 16518000 1943 26.3 520 1 19421214 2.60 1 19421207 16518000 1944 15.5 305 1 19431228 1.90 8 16518000 1945 24.0 402 1 19450408 2.00 4 16518000 1946 35.6 1070 1 19460217 2.60 5 16518000 1947 41.5 1450 1 19461220 2.60 2 16518000 1948 55.7 2260 1 19480126 4.00 1 19471020 16518000 1949 30.6 764 1 19481224 2.70 2 16518000 1950 37.0 736 1 19500428 2.50 4 16518000 1951 30.6 817 1 19501125 2.40 1 19510604 16518000 1952 27.1 538 1 19511211 2.10 1 19511018 16518000 1953 22.4 572 1 19530504 1.30 5 16518000 1954 28.6 507 1 19540418 1.10 4 16518000 1955 46.4 1430 1 19541210 2.00 2 16518000 1956 37.0 1340 1 19560225 2.20 2 16518000 1957 29.9 569 1 19570824 2.60 1 19570614 16518000 1958 39.5 851 1 19571122 2.00 1 19571014 16518000 1959 37.2 657 1 19590221 3.10 1 19590628 16518000 1960 38.8 1500 1 19600212 2.00 1 19591022 16518000 1961 29.3 1220 1 19610402 2.20 4 16518000 1962 21.3 416 1 19620309 1.70 1 19620206 16518000 1963 25.0 597 1 19630514 1.50 1 19621119 16518000 1964 30.2 534 1 19640223 3.40 1 19631229 16518000 1965 34.9 922 1 19641103 2.10 1 19650120 16518000 1966 26.1 476 1 19651114 1.60 1 19651006 16518000 1967 33.2 564 1 19670808 2.20 1 19670623 16518000 1968 34.9 570 1 19680316 1.70 3 16518000 1969 66.2 1610 1 19681129 1.80 2 16518000 1970 31.5 980 1 19691228 2.40 2 16518000 1971 40.9 903 1 19710128 1.70 2 16518000 1972 18.9 544 1 19720409 2.10 2 16518000 1973 25.0 652 1 19730311 0.94 1 19730919 16518000 1974 27.8 1680 1 19731112 0.88 2 16518000 1975 22.2 673 1 19741121 0.80 1 19741004 16518000 1976 22.5 1100 1 19760116 2.20 1 19760925 16518000 1977 25.7 547 1 19770404 1.20 3 16518000 1978 20.9 399 1 19780821 1.70 3 16518000 1979 43.6 1160 1 19790113 2.20 2 16518000 1980 67.3 1220 1 19800108 2.00 1 19791014 16518000 1981 14.5 842 1 19810430 1.00 3 16518000 1982 59.8 1470 1 19820331 3.60 1 19820106 16518000 1983 21.7 836 1 19821218 1.30 1 19830311 16518000 1984 18.4 229 1 19840414 1.30 2 16518000 1985 32.9 1020 1 19850306 0.67 1 19841029 16518000 1986 44.0 1630 1 19860321 1.70 1 19860311 16518000 1987 41.0 729 1 19870506 2.30 1 19870906 16518000 1988 33.6 1110 1 19880927 2.20 2