1890 4.8 7.5 8.8 14.6 17.2 21.6 25.0 25.9 23.1 16.6 12.0 10.1 1891 3.6 5.2 8.2 12.4 16.9 20.8 25.2 25.5 23.9 17.0 12.0 7.1 1892 4.6 4.6 5.9 13.2 16.5 21.5 26.6 26.3 23.1 16.0 10.9 5.2 1893 4.1 2.5 7.1 12.3 16.0 20.1 26.9 26.4 24.1 16.5 10.1 5.9 1894 4.4 5.0 8.5 14.1 16.9 23.8 27.3 27.6 23.1 16.5 12.4 7.0 1895 3.5 4.5 8.3 12.9 17.1 21.3 24.0 26.7 22.6 17.2 11.8 6.6 1896 4.6 4.5 6.0 14.1 16.2 22.2 24.7 25.6 21.7 16.7 11.4 6.2 1897 5.7 3.9 8.1 12.0 16.9 20.5 25.6 27.3 22.6 15.6 12.8 5.3 1898 6.4 6.0 7.5 11.9 17.0 21.4 26.4 26.6 23.1 17.3 13.1 7.7 1899 4.2 5.9 9.1 13.0 17.7 22.9 25.6 25.6 20.8 14.2 10.1 8.1 1900 3.3 4.3 7.3 13.2 17.0 20.7 24.1 26.8 23.5 17.1 12.0 6.9 1901 6.4 3.0 7.0 13.3 16.2 21.2 23.6 26.1 21.7 18.0 11.2 5.8 1902 4.7 4.6 9.6 11.7 16.9 20.6 24.4 25.0 22.1 16.4 13.2 9.0 1903 5.8 5.2 9.6 13.7 16.3 20.7 23.9 26.8 23.5 17.0 10.7 5.9 1904 3.9 5.5 7.6 13.9 16.7 21.5 26.0 26.4 21.9 16.5 10.2 7.6 1905 6.6 4.2 7.8 12.1 17.2 21.1 25.8 24.7 22.7 17.0 12.0 9.2 1906 4.2 4.6 7.5 12.3 17.2 20.6 24.9 26.2 22.2 16.5 10.8 6.7 1907 5.6 3.0 7.4 13.0 17.1 20.4 24.6 26.3 22.1 17.0 12.3 6.2 1908 5.7 4.4 7.7 13.2 16.8 21.6 24.5 25.7 21.2 17.0 10.2 7.8 1909 4.8 4.0 6.7 13.1 16.6 21.0 25.4 26.4 23.6 15.8 11.8 6.1 1910 6.5 3.6 6.8 12.3 17.0 21.4 25.4 25.6 22.4 16.4 11.1 5.4 1911 4.8 5.4 9.0 12.5 16.6 21.1 25.5 26.0 24.2 16.0 12.3 6.3 1912 4.5 7.4 8.9 13.3 17.1 21.4 25.3 26.1 21.2 15.9 10.0 6.8 1913 3.9 4.7 6.8 14.4 16.6 20.8 24.5 25.2 21.0 16.7 11.6 6.6 1914 5.0 5.6 10.0 12.0 17.4 21.4 27.9 27.1 22.6 16.7 12.5 7.9 1915 5.0 5.3 6.7 13.0 16.8 22.2 26.0 26.6 23.6 18.7 13.0 7.8 1916 6.5 5.6 6.4 13.5 17.6 23.7 25.7 26.2 24.7 18.0 13.2 7.3 1917 2.7 3.8 7.0 12.6 15.9 21.0 26.4 25.8 24.2 17.6 9.2 4.6 1918 2.6 4.4 7.4 12.7 16.2 20.8 25.9 25.9 21.4 16.8 11.0 6.7 1919 4.7 5.1 9.0 13.2 17.3 21.8 25.3 26.2 22.2 16.7 12.0 6.3 1920 4.6 4.4 8.1 13.1 16.6 21.4 26.7 26.0 23.4 16.9 13.4 7.6 1921 5.8 5.4 7.2 13.8 17.2 19.6 24.9 27.0 22.2 16.4 10.0 6.5 1922 2.6 7.3 7.2 13.3 18.2 21.8 25.6 27.7 23.8 17.1 11.2 6.1 1923 4.0 4.6 9.7 12.8 18.1 20.8 25.0 27.7 22.9 16.9 11.8 7.4 1924 5.0 5.2 5.7 13.7 16.4 20.5 26.7 26.8 22.3 17.0 10.3 6.5 1925 4.2 3.4 7.3 11.7 17.3 21.3 25.1 26.2 23.2 16.9 12.9 7.2 1926 4.5 5.3 7.2 11.9 17.1 20.3 25.6 27.8 24.5 16.0 10.7 5.7 1927 4.4 3.9 7.4 12.6 16.4 21.2 26.9 26.2 21.6 16.8 12.2 7.9 1928 5.2 4.9 8.0 13.4 18.3 21.4 25.7 25.9 24.2 17.4 12.7 7.2 1929 4.4 4.0 8.3 12.8 17.0 22.0 26.3 27.1 22.1 16.7 11.4 9.6 1930 4.3 6.6 9.7 14.5 18.1 22.5 28.1 27.4 22.1 17.0 10.9 7.8 1931 5.6 5.2 8.7 12.9 16.8 21.8 24.4 26.8 23.2 16.4 13.2 8.4 1932 6.6 4.5 7.4 11.8 17.1 21.3 26.6 26.9 22.3 15.9 12.1 7.7 1933 3.9 4.3 7.1 12.8 18.3 23.0 27.4 26.7 23.1 16.8 12.4 7.8 1934 2.9 4.8 7.5 12.5 18.0 22.2 27.8 27.7 22.8 16.2 11.2 8.2 1935 5.3 6.0 8.8 12.9 17.6 21.7 26.0 26.5 21.9 17.4 12.4 6.8 1936 2.5 3.2 5.3 12.3 16.5 21.7 25.1 26.3 23.8 17.0 11.7 8.6 1937 6.0 7.1 8.9 13.7 17.8 20.9 26.3 27.4 23.0 17.7 12.9 6.9 1938 4.4 4.4 9.9 13.4 18.6 21.9 26.1 26.0 22.3 18.9 11.3 7.5 1939 4.2 5.1 8.0 13.1 17.7 21.5 26.4 26.9 23.4 18.0 13.6 7.3 1940 4.4 4.2 7.4 12.0 17.0 21.2 27.0 25.2 23.0 17.8 13.0 8.5 1941 6.0 5.5 8.9 12.4 18.1 22.0 25.0 25.3 21.3 16.3 13.5 8.4 1942 4.6 4.3 10.2 12.8 16.4 21.0 27.7 27.4 23.7 16.0 11.0 6.5 1943 2.9 4.2 7.8 11.5 17.5 21.4 24.8 26.0 23.3 17.4 11.6 8.2 1944 4.8 4.4 6.8 11.8 18.2 22.3 26.0 26.3 22.9 17.0 12.6 5.9 1945 2.7 2.7 7.7 13.4 15.5 21.6 24.7 26.9 23.2 17.6 11.9 6.7 1946 5.1 5.4 7.3 13.7 16.8 22.3 26.4 26.4 23.1 17.0 13.6 6.4 1947 5.5 2.8 6.8 12.4 16.0 20.3 26.4 26.9 23.7 16.0 10.8 5.9 1948 5.1 5.4 7.4 14.0 17.5 21.6 25.8 26.3 23.7 18.7 12.3 10.4 1949 5.6 6.6 7.2 11.3 17.6 20.3 24.7 26.2 23.2 16.2 11.7 7.8 1950 6.8 5.8 8.1 13.9 18.0 21.2 25.8 25.7 22.7 17.0 12.4 6.5 1951 4.6 6.5 7.9 12.3 17.5 20.4 24.3 26.8 20.5 17.7 11.9 8.9 1952 5.6 4.8 7.6 13.5 17.4 20.9 25.1 27.0 23.1 16.4 13.7 7.5 1953 5.0 5.4 9.3 12.3 17.7 21.3 26.1 27.2 23.5 18.2 12.2 9.2 1954 7.0 7.1 8.6 14.2 18.1 20.5 24.5 27.2 23.7 16.6 13.4 7.8 1955 4.7 6.7 9.8 14.4 18.0 23.2 26.5 26.8 23.7 17.5 11.1 8.2 1956 5.1 4.5 9.0 13.5 16.6 22.0 26.5 26.0 23.2 17.9 11.3 5.6 1957 6.4 4.5 7.2 14.4 16.8 21.2 25.9 26.6 21.1 16.8 12.8 7.9 1958 5.3 6.3 8.7 14.1 17.4 22.3 26.9 26.2 24.1 17.1 12.4 9.0 1959 5.0 8.3 9.8 14.2 18.2 22.1 26.8 26.9 24.7 18.0 13.7 8.7 1960 5.1 7.4 10.1 13.0 18.1 21.8 27.0 27.5 23.8 17.5 13.3 7.2 1961 4.1 4.6 9.6 14.2 18.5 22.3 27.8 27.9 25.7 20.3 13.9 8.1 1962 4.5 6.1 8.4 12.9 17.6 20.7 26.2 27.4 24.0 17.3 12.0 8.1 1963 2.7 3.2 8.1 14.0 19.0 22.4 26.8 26.8 22.2 16.8 12.4 8.4 1964 6.7 4.6 8.3 17.9 18.9 21.4 27.5 28.0 24.7 18.2 12.0 7.8 1965 4.7 5.6 7.0 12.2 17.7 21.4 26.6 26.9 21.1 16.8 13.6 7.2 1966 5.1 7.2 9.8 13.4 17.4 21.5 25.9 28.1 23.0 18.0 12.2 6.3 1967 4.7 5.6 9.2 14.2 19.1 22.8 26.3 28.3 24.5 17.5 13.0 5.8 1968 5.3 2.9 8.9 14.2 18.1 21.8 25.0 27.1 22.9 17.1 12.7 10.0 1969 6.5 6.2 7.7 14.1 18.9 21.2 25.8 27.6 24.9 17.4 11.8 6.7 1970 4.2 6.5 6.1 13.3 18.1 20.2 26.3 27.6 25.1 18.6 12.3 7.5 1971 5.0 5.6 8.0 14.3 18.2 22.1 27.3 26.8 23.7 17.0 12.9 8.2 1972 7.4 6.3 9.1 13.8 17.8 21.4 26.3 26.4 22.2 17.7 12.4 7.6 1973 6.6 6.9 8.7 14.9 17.4 21.2 26.8 27.3 22.1 17.0 11.3 5.6 1974 4.3 5.0 7.8 14.3 18.5 21.2 25.0 26.9 22.2 17.7 11.4 7.8 1975 5.2 4.7 8.5 14.0 17.9 21.9 26.6 26.7 24.8 18.6 13.0 7.7 1976 4.8 7.4 8.8 13.3 17.8 21.6 25.0 26.7 20.9 17.1 10.9 6.9 1977 3.6 4.1 9.4 14.6 17.9 21.6 26.8 26.2 23.8 18.8 14.0 9.0 1978 6.6 5.2 8.6 13.4 18.4 22.6 27.7 27.6 24.5 17.6 12.6 8.7 1979 7.0 7.5 8.9 13.5 17.8 23.0 25.2 27.5 24.1 18.9 12.6 8.6 1980 5.5 4.5 8.5 13.5 18.3 22.6 24.5 24.9 22.6 17.7 12.8 6.0 1981 3.4 5.1 8.9 13.4 17.4 22.5 27.3 26.5 22.4 17.3 11.2 7.6 1982 5.3 5.5 10.0 13.7 19.5 21.9 24.2 26.7 22.1 18.0 14.2 8.4 1983 5.9 5.2 9.1 16.0 19.1 22.1 26.5 28.3 24.8 18.3 12.1 7.3 1984 3.7 3.2 6.7 13.8 18.3 22.9 27.2 28.0 23.6 17.7 13.9 7.9 1985 4.5 6.4 9.6 14.3 19.4 21.4 27.1 27.9 25.4 18.9 12.7 6.4 1986 4.0 3.9 8.4 14.4 18.1 22.6 25.6 27.3 23.3 16.6 12.4 9.2 1987 6.6 6.8 8.9 13.7 18.6 22.9 26.8 27.4 22.8 19.4 13.6 8.6 1988 7.0 5.5 8.1 13.6 18.2 22.0 26.5 26.6 23.5 17.8 11.6 7.7 1989 8.0 7.6 9.3 15.1 17.9 21.6 26.1 26.7 24.0 17.6 13.4 8.7 1990 5.7 8.6 10.5 14.4 18.5 23.8 28.0 28.2 24.8 18.1 14.6 8.4 1991 6.2 5.7 10.1 14.8 18.0 23.5 27.5 27.1 24.9 18.3 12.7 9.4 1992 7.3 6.6 10.1 15.2 18.1 21.2 26.0 26.9 24.1 18.3 13.0 9.1 1993 7.1 7.4 8.5 14.1 18.0 22.2 24.9 25.7 22.3 17.0 13.9 8.5 1994 6.0 6.4 8.2 15.6 19.9 22.6 29.1 28.9 24.9 19.6 14.6 9.5 1995 6.2 6.2 9.7 13.7 18.0 21.4 27.3 29.1 23.3 18.8 11.8 7.1 1996 5.9 5.2 8.7 11.8 18.9 23.2 26.9 27.7 23.7 18.3 13.8 8.4 1997 5.7 6.4 10.6 14.8 19.9 23.1 26.4 28.0 23.7 18.0 14.4 9.2 1998 6.1 8.3 10.3 17.3 20.8 22.8 27.5 29.1 25.2 20.5 13.8 10.0 1999 6.7 6.3 10.5 14.3 19.4 22.7 25.5 27.2 26.0 19.5 13.3 8.3 2000 6.9 5.2 9.4 14.0 19.2 22.4 27.9 28.1 24.3 19.6 14.2 8.7 2001 5.3 6.8 10.0 15.0 19.6 23.4 27.8 28.1 23.8 19.1 12.5 7.6 2002 7.1 7.3 11.5 15.9 19.4 23.0 28.1 28.3 25.0 18.6 10.9 8.4 2003 5.2 6.8 8.9 15.4 19.7 22.5 25.4 27.2 25.3 17.7 15.3 8.9 2004 5.3 8.0 10.3 15.8 20.1 23.5 28.6 27.8 25.1 18.5 14.4 9.7 2005 6.2 5.6 8.7 15.8 19.2 24.4 27.0 27.6 25.7 19.8 13.3 5.6 2006 5.7 6.9 8.8 13.5 19.1 23.0 26.9 28.7 23.9 20.2 14.4 8.9 2007 7.1 8.9 10.4 14.4 19.3 23.3 25.6 28.7 26.8 20.1 13.5 9.4 2008 6.3 5.3 10.1 14.8 19.3 22.4 28.5 27.8 24.7 19.6 12.7 8.9 2009 6.1 8.5 10.2 15.2 19.8 23.4 26.6 27.5 24.3 18.7 13.6 8.5 2010 6.3 8.4 9.8 13.3 18.6 23.0 27.1 29.7 26.0 19.6 12.8 8.7 2011 3.7 7.2 8.0 14.0 19.5 23.9 27.3 28.0 24.5 19.2 15.2 7.9 2012 5.5 5.2 9.3 15.2 19.1 22.3 27.3 28.8 24.8 19.0 12.4 6.8 2013 5.0 6.5 11.2 13.8 19.5 23.0 28.7 29.2 24.6 20.1 13.0 7.5 2014 6.5 6.4 10.3 14.4 19.3 22.5 26.7 26.8 23.9 19.3 14.0 6.7 2015 6.7 6.6 9.8 16.0 20.2 21.9 26.3 27.1 23.1 18.3 15.5 10.0 2016 6.6 7.2 10.8 16.1 20.3 23.1 27.8 29.1 25.3 21.1 13.8 9.7 2017 6.6 7.0 9.2 15.7 20.2 22.5 28.5 28.8 23.7 18.8 12.7 6.8 2018 5.0 5.5 11.4 16.7 19.8 23.0 28.3 29.4 24.1 19.1 13.6 9.4 2019 7.2 8.2 10.9 14.8 20.3 23.0 26.1 27.8 26.3 20.7 14.1 9.7 2020 8.7 8.4 11.4 13.3 20.1 24.2 25.6 29.7 25.2 18.8 14.7 7.9 2021 6.2 8.9 12.7 15.5 19.5 23.4 27.2 27.5 25.0 20.1 13.7 8.8 2022 5.9 5.2 11.9 15.9 19.3 24.1 27.8 29.1 26.2 19.2 15.5 7.4 2023 6.5 7.6 12.7 15.9 19.8 23.1 28.0 28.9 27.3 19.4 14.8 9.3