1901,8.6,6.7,11,15.1,19.5,27.2,30.9,30.7,23.6,16,11.3,7.9
1902,8.4,9.8,12.6,15.1,18.4,23.7,30.5,30.3,24.2,15.9,12.4,8.7
1903,8.7,9.7,12.6,15.2,17.8,24,30,30.3,23.9,18.1,12.6,7.6
1904,7.8,8.9,10.6,15.4,21.3,25.7,31.2,30.3,24.1,19,12.5,10.1
1905,7.8,8.3,12.7,16,19.1,24.1,30.5,29.8,23.5,17,10.9,8.5
1906,8.7,7.8,11.7,13.2,19,26,30.4,31.3,24.4,17.9,11.9,7.8
1907,7.5,7.6,12.5,14.2,18.3,25.8,29,30.2,24.9,15.3,11.8,9.7
1908,8.8,8.9,10,12.8,20.3,23.2,30.1,29.6,25.8,18.2,12.8,9.4
1909,7,7.6,10.8,15.5,19.6,22.7,29.9,29.4,22.7,18.1,11.8,9.9
1910,8.3,9.4,10,13.4,17.3,24.1,29.3,28.7,23.4,17.3,11.6,9.3
1911,6.1,9.2,10.1,13.1,18,22.9,30,30.2,26,16.4,11.4,9.9
1912,8.5,11.1,12.8,13.7,20.3,24.3,27.9,27.4,22.7,16.2,11,8
1913,9.3,9,11.1,13.3,19.1,26,30,28.5,22.3,16.8,12.2,8.4
1914,6.7,9.7,11.6,14.8,19.2,22.7,28.8,29.2,25.5,17.5,11.3,8.1
1915,6.6,7.9,11.2,12.3,18.5,24.4,31.1,30.7,24,15.8,11.1,8.6
1916,7.5,8.3,10.2,13.4,19,23.9,29.1,29.4,23.6,17.9,11.5,9.1
1917,6.7,7.9,10,12.3,18.8,24.4,31,29.3,26,16.8,10.5,5.4
1918,8.3,8.5,10.2,12.3,18.5,25.1,30,29.6,24.1,14.7,10.4,7.7
1919,6.1,9.3,10.6,13.1,18.5,25.1,28.8,30.8,24.3,15.2,10.1,6.4
1920,7.3,9.2,11.2,14.7,20,24.7,29.6,29.5,24.7,15.5,10.3,7.1
1921,7.4,8.4,11.4,13.5,18.2,24.5,31,29.6,24.6,18.9,11,7.1
1922,8,9.3,10.6,13.9,20.6,24.2,30.1,30.3,23,17.7,11.3,7.8
1923,5.3,9.2,11.8,12.1,19,22.9,31.2,31.9,23.5,19.4,10.6,5.8
1924,8.1,7.3,11.6,15,21.8,26.5,31.2,29.9,24.5,17.9,11.7,8.3
1925,7.5,8.1,9.3,13.2,18.3,23.7,28.6,30.3,24.1,17.5,10.4,9.6
1926,8.6,11.9,12.9,14.9,18.3,25,31.2,31.3,27.5,19.9,10.3,7.3
1927,8.1,8.4,11.2,15.3,20.2,25.8,28.7,30,25.8,19,11.7,9
1928,7.6,9.9,12.1,14,17.8,26,33.1,31.2,25.4,17.9,11,7.8
1929,6.7,9,11.5,14.8,18.2,25.3,30.4,29.5,24.3,17,10.8,9.4
1930,8,6.8,11.8,12.6,19.4,23,29.4,30.7,25.4,19.1,12.7,9
1931,7.5,8,12.4,14,18.6,26.5,30.5,28.9,23.6,17.7,11.7,6.6
1932,6.9,6.9,11.3,13,18.5,23.2,28.8,29.6,24.3,16.5,11.5,8.4
1933,6.7,8.5,10.8,15.5,20.6,23.6,30.8,32,25.1,18,9.8,6
1934,6.6,7.4,9.4,12.9,19.4,25.8,31,28.9,25.5,18.1,10.5,10.1
1935,6,8,11.6,15,17,25,31.5,30.1,26,16.8,11.2,9.2
1936,10.3,10.4,10.7,13.8,16.4,22.7,29.7,30.2,25.5,16.3,10.3,6.9
1937,8.6,11,10.8,15,19.2,24.3,31.2,30.7,24.9,17.8,13,7.4
1938,7.1,7.7,11.8,13.8,18,27.1,30.7,29.3,22.7,18.3,12.8,7.9
1939,9.4,8.8,10.5,13.2,17.6,23.1,30.1,29.4,24.6,16.6,11.6,8.6
1940,7.7,10.4,12.5,15,19.3,23.9,30.1,30.6,24.8,16.8,11.3,7.3
1941,7.1,9.9,11.8,13.3,17.4,24.2,29.8,29.6,24.2,18.1,11.3,7.8
1942,7.3,7.2,11.9,14.7,19.6,25.6,30.6,29.7,24.4,18.4,11.2,9
1943,9.2,8.5,11.1,15.2,20.8,27.1,29.6,29.8,24.6,17.4,11,8.3
1944,8.7,7.7,11.6,15.8,20.5,26.3,30.5,30.7,25.7,16.6,11.8,7.9
1945,5.6,9.4,12.1,17.7,21.3,26.4,31.9,30,26.7,17.9,13.1,9.9
1946,6.5,9.8,11.8,13.8,17.4,25.1,32.3,31.5,26.7,18.7,10.1,7.2
1947,5.6,7.9,11.6,14,17,25.4,31.7,30.7,25.3,16.2,14.1,8.2
1948,6.8,10.6,13.2,14.1,18.6,26.1,29.8,29.7,25.4,17.8,13.2,9.5
1949,8.2,9,10.6,16.2,19.8,25.3,32.2,31.6,25.6,18.6,12.6,8.6
1950,8.2,10.6,12.9,15.1,19.5,26.1,32.1,30.9,25.5,17.9,13.5,7.2
1951,7.2,7.9,11.6,13.5,16.6,24.8,29.8,28.9,24.7,16.6,11.4,9.4
1952,7.1,8.6,13.9,15,18.6,25.9,30.7,29.3,22.8,18,12.2,8.1
1953,6.9,7.8,9.8,14.3,20.9,24.2,30.2,30.9,24.5,16.3,12.5,10.3
1954,6.8,7.4,10.4,12.8,19,24.3,29.8,28.8,24.5,18.2,13,9.1
1955,9.2,9.2,10.8,15.3,21,25.6,31.3,30.7,25.4,17.9,11.3,10.1
1956,8.4,5.4,11,12.8,19.6,24.6,29.8,28.9,23.4,17.6,10.2,7.8
1957,7.5,10.4,13.4,13.1,17.6,23.7,30.3,30.3,25.2,16.5,10.8,6.9
1958,7.8,10.3,12.1,13.5,20.8,23.8,29.5,29.1,25.4,17.4,11.3,8.4
1959,8.4,8.2,11.6,15.2,18,25.1,30.7,29.6,24.2,17.6,11.8,8.2
1960,8.1,9.3,12,14.9,20,26,30.5,29,24.8,14.9,11.1,7.1
1961,7.8,11.4,13.2,15.9,21.8,25.6,31.2,30.7,25.8,17.7,11.1,9.1
1962,9.1,9.7,11,14.6,19.9,24.5,30.3,31.1,26.4,18.3,9.5,7.1
1963,6.9,7.5,11.8,14,18.8,23.7,30.6,29,23.8,19,11.9,7.6
1964,7.9,9.7,11.5,14,22,24.9,30.8,30.1,27.5,17.5,11.7,7.5
1965,8.1,7.3,12.1,15.2,21.6,26.3,28.9,29.8,22.1,16.2,11.2,8.6
1966,9.7,11.1,13,15.5,20.4,25.1,29.8,30,25.3,15.3,9.7,8.9
1967,8.1,8.9,13.1,13.7,18.7,24.2,31,30.6,23.8,18.9,11.7,7.5
1968,8.1,9.1,11.1,13.5,19.3,24.7,31,29.5,23.9,19.1,11.5,7.7
1969,8.7,8,11.5,14.8,19.1,23.7,30.9,29.9,21.9,17.1,11.4,7.3
1970,8.7,9.9,11.1,14.7,19.5,24.1,30.8,29.8,26.1,17.5,13.6,7.4
1971,7.9,10.3,9.7,12.8,17,23.8,30.2,30.1,25.6,20.2,10.6,7.9
1972,7.5,10.3,10.9,15,18.3,23.8,29.8,29.9,22.2,16.4,12,8.3
1973,8.7,9.2,10.3,14.4,20.1,25.4,30.3,31.3,25.1,17.6,12.9,7.9
1974,9.6,8.7,13,11.2,19.9,24.1,31.4,30.2,25.1,16.7,12.5,10.2
1975,9.3,9.6,10.5,13.8,17.1,23.9,31.9,31.1,24.1,19,12.1,8
1976,8.7,9.4,12.1,12.2,18.8,26.4,30.9,29.7,23.1,14.9,9.9,8.3
1977,7.7,9.5,13.2,15.5,18.3,22.8,28.1,27.9,24.8,17.4,14.1,9.3
1978,8,10.8,13.2,13.5,17.7,22.7,29,30.7,26.5,18.8,12.7,10.7
1979,9.6,9.8,11.5,14.4,19.7,26.1,31.4,30.4,22.5,16.4,12.3,9.6
1980,8,10.7,12.3,14.6,18.5,25.4,30,30.8,26.7,18.4,11.9,8.8
1981,8.4,9.6,13.5,13.3,19.4,26,30.5,29.2,25.8,19,14.9,9.9
1982,9,9.3,12.6,14.3,19.7,27.5,30.3,29.6,25.1,17.3,11.3,8.4
1983,9.6,7.8,13,14.9,18.6,26.3,30,28.5,27.3,20.5,13.5,10.1
1984,8.4,9.3,10,16.1,16.1,24.4,31.7,29.1,25.5,17.7,11.7,9.8
1985,7.5,11.1,11.8,16.2,18.3,25.7,31.8,30.7,27.5,21.1,12.4,9.1
1986,8.6,9.1,11.6,12.5,21.2,25.2,31.3,29.8,26.1,19.2,13.1,9.3
1987,7.7,9.5,13.2,16.3,19.9,26.2,30.8,30.8,27.3,17.2,12.1,9.4
1988,9.2,9.5,13.3,15.5,18.8,24.5,30.9,31.6,26.5,18.8,12.8,9.3
1989,8.4,10.5,13.1,14.2,20.9,27.1,33.4,31.7,24.8,19.4,12.7,10.5
1990,8.9,11.7,12.1,14.2,21.1,26.4,33.3,32,27.5,18.1,12.4,7.9
1991,8.9,8.9,12.1,14.7,20.1,26.6,32.7,32.7,26.8,16.7,12.3,9.1
1992,7.8,9.9,12.2,16.2,21.3,23.1,31.2,31.7,24.9,16.3,13.2,9.2
1993,8.9,8.7,11.9,14.7,19,26.2,31,31.1,23.3,15,11.1,9.3
1994,8.5,10.1,13.8,14.7,20,26.6,32.8,31.4,23.9,17.3,13.7,10.5
1995,10,11.6,12.6,16,21.4,25.2,31.6,30.8,23.3,19.7,13.9,10.1
1996,9.2,9.2,11.7,15.8,19,26.6,30.9,29.6,22.9,18,12.3,8.6
1997,8.4,12.2,14.5,16.8,20.1,25.2,29.9,30.4,26,20.2,12.5,9.3
1998,9.4,10.3,14,14.9,18.9,26.2,32.4,32.2,25.2,18.3,13.3,9.9
1999,9.2,9.8,12.2,16.8,20.7,26.8,31.9,30.7,25.1,18.1,11.8,8.8
2000,8.5,12.7,14,13.8,20.3,27.7,31.2,30.8,25.6,17.4,11.7,10
2001,9.4,11.1,14.6,16.6,19.1,27.4,30.7,31.2,25.1,19.3,11,8.2
2002,9.4,11.8,12.7,15,19.6,26.5,31,29.5,24.2,18.2,12.4,10
2003,8.9,8.7,12.7,15,20.9,28.6,31.9,32.6,25.8,17.4,12.1,9.4
2004,10.2,9.7,11.3,14.5,17.9,27.4,31.6,30.7,26.4,19.3,13.1,9.1
2005,10.2,8.8,12.1,16,21.9,27.6,31.8,30.5,24.5,18.4,11.4,9.1
2006,8.1,9.1,12.5,16.1,21,25.5,32.1,29.7,25.2,18.9,13.2,8.9
2007,9.2,11.2,12.8,15,20.7,25.4,31.6,30.9,25.7,18.8,13.3,9.7
2008,10.6,11,13.6,16.5,18.8,26,32.1,32.2,25.4,18.4,10.6,7.5
2009,7.4,9,13.1,14.8,21.3,26.9,32.6,32.3,25.4,20.1,13.9,10.3
