1901,6.2,5,10.2,13.6,16.2,21.5,24,24,20.8,16.3,10.9,9.3
1902,8,9.7,10.8,15,14.4,19.3,24.3,24,21.4,16.3,11.1,8.2
1903,7.5,8.8,10.7,10.9,17.2,19.4,24.3,23.6,21.2,16.7,11.6,9.7
1904,8.5,9.4,11,14.4,17.7,22.3,25.7,24.8,19.4,15.7,9.8,8.3
1905,5,6.7,10.8,13.6,16.1,20.6,25.8,24.1,21.2,13.7,12.5,8.9
1906,7.2,6.7,9.8,12.7,16.2,20.5,23.6,24.6,20,17,12.7,7.7
1907,6.2,6.8,8.5,11.4,17.1,20.3,22.4,24.3,21.5,18,13,10.8
1908,6.8,7.9,9.1,11.4,18.9,21.5,23.6,23.3,19.3,16.5,10.9,8.3
1909,6.4,5.5,9.7,13.8,16.9,19.1,21.6,23.5,19.7,17.1,11,10.9
1910,8.2,8.9,10.2,13,15.6,20.1,21.8,23,18.7,17,11,10.3
1911,6,7.2,10.7,12.3,16.7,20.7,24.7,25.8,21.8,17,14,10.2
1912,9.2,11.1,11.8,11.9,17.1,20.3,23.7,22.3,17.6,15.6,9.4,9.4
1913,9.1,8.1,11,12.6,16.6,20.9,21.6,22.9,21.2,17.7,13.1,8.5
1914,5.3,9.3,11,14.4,16.4,19.1,22.7,23,19.8,15.1,11.1,9.9
1915,7.8,8.2,9.8,12.8,18.1,21.4,23.3,23.2,19.2,14.3,10.9,11.5
1916,8.3,8.9,11.5,13.7,17.9,20.6,23.5,23.4,19.1,15.6,12.9,10.7
1917,7.2,7.3,9.3,11.5,18.2,21.9,24.1,24.3,22,16.2,10.5,7.2
1918,7.6,7,9.9,12.9,17.1,19.4,23.7,23.2,22.4,15.2,11.4,9.4
1919,8.4,7.6,10.6,12.8,15.7,20.9,22,24.6,21.8,14.5,11.2,8.2
1920,9.1,9.2,11.4,13.9,20.3,20.8,24.8,23.7,21.3,16.2,11.9,9.2
1921,9.2,8,10,12.4,18,20,24.5,24.1,21.9,17.8,11.4,7.7
1922,7.4,8.4,11.6,12.9,18.7,22,23.7,25.2,19.2,15.8,9.3,7.7
1923,6.5,9.1,10.2,13.1,17.5,18.9,25.5,25.9,20.8,17.6,13.4,8.4
1924,7.1,7,10.2,14,19.3,21.8,25.4,22.7,21.8,16.2,11.8,9.2
1925,8.2,9.5,8.2,13.1,16.9,22,23.2,24.4,19.8,17.1,12,8
1926,7.8,11.4,11.1,14.4,16.1,19.6,22.9,23.6,22.7,19,15.6,8.2
1927,8.1,7.9,11.2,13.6,18.1,22.2,24.7,24.9,21.1,16.2,14,10.1
1928,8.5,8.6,10.6,14,15.7,21.6,25.3,26.2,22,16.7,12.2,7.4
1929,4.9,3.4,9.3,12.3,17.9,21.8,25,24.2,22.4,18.5,12.7,9.2
1930,9,8.3,11.8,13.4,16.5,22.8,24.7,24,22.1,16.4,13,8.9
1931,8.6,7.4,10.1,12.2,17.3,23.3,24,24.2,18.7,16.6,13.2,8.5
1932,9,5.2,8.9,12,16.3,19.1,21.9,24.8,23.4,16.9,13,11
1933,7.6,7.8,10.4,13.5,15.8,18.1,23.4,24.4,21.3,18,11.5,6.8
1934,7.7,8.6,10.3,14.1,17.9,20.4,24,23,20.9,16.2,12.2,10.6
1935,5.9,7.9,9.8,12.6,14.6,22,24.3,23.5,21.1,17.5,13.5,9.3
1936,10.8,9.4,11.8,12.9,16.3,19.7,23.3,23.3,20.7,13.8,11.4,9.3
1937,8,10.3,10.5,13.1,17.5,21.6,23.5,23.5,20.2,16.8,13,8.5
1938,7,7.6,11.6,11.1,15,21.6,23.3,23.7,20.3,17.3,12.9,8.9
1939,9.1,9.7,8.6,13.5,13.7,20.2,23.8,24,19.9,16.2,12.5,9.3
1940,6,7.4,10.5,13,16.3,19.4,22.3,22.2,20.9,16.5,12.3,6.1
1941,7.4,9,10.7,12.4,15.4,21.4,25.2,24.1,19.4,16,11.5,6.5
1942,3.9,6.5,12.1,14.3,18.2,22.6,25.3,24.3,22.9,18.4,10.9,10.4
1943,6.5,9.2,11.7,14.2,18.2,21.3,24.8,25.8,23.5,18.2,11.4,10.4
1944,6.8,6.6,8.6,14.4,17.8,20.8,24.3,26.5,21.3,16,11.4,8.3
1945,4.6,8,11.1,15.2,18.9,23.7,26.4,24.9,21.6,15.7,10.7,8.7
1946,7,8.3,8.3,14.2,14.3,20.8,24.9,25.2,22.9,16.2,12,7.2
1947,5.2,8.7,12.2,13.8,18.5,22.9,26.2,26.1,21.9,16.6,13,7.6
1948,8.4,6.8,11.3,13.7,18,20.7,22,24.1,20.8,17.9,12,8.5
1949,8.8,7,8.2,14.4,17,20.9,24.9,24.4,23.3,17.8,11.4,9.5
1950,7.1,9.3,10.9,12.5,18.1,22.9,25.3,25.4,21.5,16.7,12.1,8.5
1951,8.9,10,10,12.7,15.9,20.3,23.3,24.1,22.2,15.7,13.3,8.2
1952,7.1,6.8,10.3,14.4,17.2,22.5,25.9,24.9,20.2,16.6,10.8,9.1
1953,5.3,6.7,9.2,13.6,17.4,18.9,22.5,23,21.9,17.9,11.4,11
1954,6,7.2,11.3,12.3,15.8,21.1,21.8,22.2,21,15.8,12.1,10
1955,10.6,10.1,9.9,12.7,16.9,20.8,24.3,23.2,20.3,15.8,11.5,11.1
1956,9.4,4.1,9.5,12.2,16.9,18.8,23.2,24.2,21.8,15,10.7,7.7
1957,7.2,10.2,10.8,13.1,15.4,20.9,23.3,23.5,19.9,17.3,13,9.2
1958,7.8,9.8,9.4,11.4,17.9,20.1,23.2,24.3,21.7,17.1,13,10.6
1959,7.9,9.3,12.3,13.3,16.5,20.6,24.2,23.8,20.8,15.4,11.9,10.5
1960,8.3,9.5,11,12.6,17.2,21.9,22.8,23.3,19.8,16.9,13,9.1
1961,8.5,9.3,10.8,14.7,16.7,20.8,23.5,23.4,22.2,17.1,13.1,9.8
1962,9.3,8,9.3,13.4,16.1,19.7,23.2,24.4,21.7,17.2,11.6,7.2
1963,6.6,6.8,9.5,13.4,16.5,20.3,24.7,23.6,20.9,15.8,15.1,9
1964,6.6,8.9,11.4,13.3,17.9,21.8,24.6,23.9,20.7,15.9,12.9,9.2
1965,8.2,5.6,10.3,11.9,15.7,19.8,23.2,22.9,19.6,17.1,14.4,10.8
1966,7.6,11.2,9.9,14,17.1,21.3,22.1,22.6,20.6,18,10.6,8.5
1967,7.2,8.9,11.2,12.7,16.6,19.1,24.5,24.3,20.3,17.5,13.9,9
1968,6.8,10,10.4,13.8,17.5,20,23.4,22.1,20.1,16.7,12.4,9.2
1969,7.8,8.3,10.6,12.7,17.6,18.8,22.8,23.4,20.7,17,13.7,7.6
1970,10.2,9.3,9.5,12.1,15.5,21.3,22.9,23.8,21.5,16.3,13.2,9.2
1971,8.7,8.4,7.9,14.1,17.5,19.5,24.1,25.9,20.5,16.4,11.7,8.7
1972,8.7,10.6,11.9,12.8,15.8,19.9,22.7,22.4,19,15.4,13,10
1973,8.6,7.9,9.1,11.3,17.4,21.3,24.1,24.8,22.3,17.1,11.9,8.8
1974,9.5,10.1,11.3,12.4,16.4,20.1,22.9,24.1,20.6,13.1,11.4,8.3
1975,8.8,8.3,10.1,12.5,16.5,19.2,23.5,23.9,22,15.5,11.6,9.2
1976,8,9.3,9.5,12.3,16.7,21,23.9,22.5,19.5,16.8,11.6,10.2
1977,9.9,10.9,11.7,12.6,17,19.7,23.2,22.6,19.1,17.4,12.5,9.1
1978,8.3,8.9,10.7,11.6,15.7,19.9,22.5,23.1,20.3,15.6,10.3,11.3
1979,8.2,10,11.4,11.9,17,21.7,24.1,23.6,20.3,17.3,11,10.2
1980,8.1,9.1,10.6,11.3,15.1,18.9,21.3,24.3,21,16.3,12.7,7.1
1981,5.7,6.8,11.7,13.9,16.2,20.9,22.2,23.5,21.5,17.1,10.5,10.3
1982,9.3,8.2,9.6,13.4,16.8,21.5,25.5,24.1,22.6,17.7,13.4,10.1
1983,8.4,7,10.7,13.6,17.1,20.8,25.8,24.1,21.4,16.5,12.4,9.1
1984,8.4,7.3,9.8,12.1,15.5,19.6,23.4,22.9,19.4,16.5,13.5,9.3
1985,5.7,9,9.8,13.5,16.8,20.6,25.2,23.7,21.7,17.4,12.4,10.6
1986,8.5,7.3,10.8,12.9,18.4,19.4,23.6,24.8,21.3,18.1,12.7,8.6
1987,8.2,8.9,8.7,13.3,15.3,20,25.1,25,23.3,18.6,13,11.1
1988,10.7,9,10.3,13.5,18.2,20.4,24.9,24.6,20.6,18.7,11.1,8.5
1989,7.5,9.1,12.1,13.6,17.1,20.3,24.5,24.9,20.6,15.4,12,10.7
1990,8.1,11.3,11.3,13.1,18.2,21.1,24.2,24.5,21.2,19,12.4,7.3
1991,8.1,7.7,12.9,11.7,14.4,19.9,24.7,25.2,22.8,16.2,12,6.8
1992,8.6,8.5,11.1,13.5,18.2,19.9,23.7,25.9,21.7,17.6,14.2,10.5
1993,8.4,7.2,9.1,13.2,17.9,21.6,23,25.3,21.6,17,11.5,10.7
1994,8.7,8.9,12,12.3,17.7,20.6,25.6,26.7,22.1,17.1,14.3,10.6
1995,7.8,10.1,9.2,12.5,16.2,19.4,25.3,24.5,19.5,17.7,12.2,10.7
1996,10.5,7.9,9.9,13.4,17.1,21.2,23.5,24.1,19.2,16.1,14.6,10
1997,9.7,10.2,11.4,12.2,17.9,21.7,23.7,25.2,22.1,17.7,13.4,10.2
1998,9,9.2,10.1,13.7,17.6,21.6,24.6,25.3,20.9,16.6,11.4,7.8
1999,7.9,7.2,10.8,13.1,18.3,21.2,24.8,26.1,23,18.1,12.1,9.5
2000,7.3,9,11.2,14,18.9,22.1,23.4,25.1,21.4,17.6,13.7,11.6
2001,10.5,9.4,13.6,12.4,18.4,21.2,24.7,26,19.7,19.4,12.7,8.1
2002,7,10.2,12.1,13.8,17.6,22.3,24.2,23.9,20.4,17.1,15.2,11.1
2003,8.5,6.4,10.4,13.2,18.9,23.3,26.5,27.8,21.7,17.3,14.2,10.2
2004,8.3,9.9,10.2,12.9,15.9,21.1,24,25.2,21.9,19.2,13,10.9
2005,7.3,6.1,9.7,12.6,17.8,22.3,25.1,24.5,21.3,17.7,12.6,8
2006,6.8,8.4,10.1,13.6,18,21.6,26.8,23.9,21.5,18.5,13.6,10.8
2007,10.7,10.5,11,15.1,18.4,21.8,24.3,24,20.7,16.8,12.1,9.3
2008,9.8,9,11,14,18.3,21.5,24.7,25.1,21.2,17.9,13.3,9.6
2009,8.7,8,10.8,14.4,19.2,21.8,24.9,26.3,22.8,16.9,13.5,9.7
