1901,6.7,7.1,9.2,11.7,12.4,17.5,20.6,20.9,19.7,15.6,11.4,9.3
1902,7.3,8.8,8.8,11.7,12.1,16.4,20.9,21.1,19.9,16,11.6,8.6
1903,7.8,6.8,8.8,9.7,13.8,15.7,19.2,20.9,18.8,15.8,10.8,9.3
1904,7.2,8.8,8.8,11.2,14.7,18.5,21.2,20.6,18.4,14.5,9.8,8.1
1905,5.1,5,8.9,11.4,13.1,16.3,20.8,21.7,20.1,14,12.3,9.3
1906,7.5,5.8,8.7,9.7,12.5,16.7,19.9,21.2,18.7,14.5,11.9,7.5
1907,5.9,5.4,5.8,9.6,14.3,16.9,19.9,21.4,18.7,16.8,12.2,9.3
1908,7.7,6.8,8.4,9.3,15.9,15.4,20.1,20.8,17.6,15.5,11.1,7.7
1909,6.7,5.5,8.7,10.6,14,17.4,18.8,20.2,18.5,15.5,10.2,10.3
1910,7.3,7.5,8.2,10.8,12.6,16.8,19,20.1,16.7,16.6,11.2,10
1911,6.3,5.7,8.8,10.4,13.3,17.7,20.7,22.3,19.3,16.8,13.1,10.9
1912,8.4,9.4,10.2,10,13.8,17.3,21.4,20.6,16.8,16,10.5,8.4
1913,9.1,7.5,9.6,11,14.2,18.6,19.8,21.1,21.3,17.1,13.7,9.7
1914,6.7,8,9.7,11.9,14.7,17.2,20.2,20.2,18.4,14.4,10.9,8.9
1915,7.8,7,9.2,10,14.1,18.7,21.3,21.3,17.8,15.2,12.3,11.1
1916,7.5,8.3,10,11.2,14.8,19.8,22.1,20.6,18.9,15.3,11.9,10.2
1917,7.7,7.6,9,10.2,14,19.1,20.8,22.6,20,15.5,10.9,7.3
1918,6.9,6.5,8.3,10.7,13.8,16.6,20.1,19.7,20.7,15.1,11.1,9
1919,7.6,8.5,8.4,10.7,11.7,18.2,20.2,21,19.6,15.3,11.8,8
1920,8.2,8.2,9.3,11.7,15.7,18.6,21.8,21.4,19.4,16.5,11.6,9.4
1921,8.3,7.5,8.8,9.9,15,17,21.7,21.7,19.9,16.2,11.5,9.1
1922,7.6,8.7,10.7,12.1,14.7,19.3,21,22.6,19.8,16.4,10.8,7.8
1923,6.6,7.8,8.5,10.9,14.7,15.7,20.3,21,19,15.7,13.4,9.1
1924,6.8,7.6,9.1,11.9,16.1,19.5,21.6,21.2,21.5,16.4,12.3,9.7
1925,7.1,7.9,8.1,10.9,13.5,18.4,20.4,21.9,20,15.8,12.8,8.6
1926,8.1,9.1,9.1,11.4,13.4,16.9,19.3,19.8,20.4,17.2,15.2,8.9
1927,7.5,6.6,10.1,11.1,15.3,20.5,22.2,22.6,20.4,15.2,13.5,10.4
1928,8.5,7.4,9,11.8,13.6,18.9,22.4,23.4,20.8,17.1,12.2,8.2
1929,6,5.2,8.3,11.2,14.8,18.8,21.5,20.5,19.5,14.9,12.2,9.3
1930,8.9,7.1,9.7,11.1,13.8,19.3,21.7,20.7,18.4,14.8,11.8,9.8
1931,8.8,6.9,10.2,10.6,13.9,19.9,22.1,22.2,18.9,15.4,13.1,8.8
1932,7.7,6.4,9.1,10.4,14,16.7,19.8,20.9,21.3,18.4,13.1,11.2
1933,7.9,8.2,9,11.1,13.2,15.7,20,20.6,19.3,17.4,13.4,9.7
1934,7.4,7.5,9.2,12.2,14.7,18.4,21.1,21.2,19.3,16.3,13.6,10.5
1935,5.7,7.7,7.8,10.6,13,18.6,21.3,21.4,19.8,17.3,13.9,9.5
1936,10.2,8.6,9.9,11.5,12.8,16.3,20.6,20.4,19.4,14.7,12,9.1
1937,8.4,9,9.3,10.8,13.7,19.1,19.8,21.3,19.3,16.6,13.4,8.5
1938,7.3,6.6,8.1,9.2,12.4,18.1,20.3,21.4,18.8,16.5,12.9,10
1939,8.9,8.7,7.1,10.7,12.2,16.6,21.5,21.3,19.3,16.9,12.7,9.6
1940,7.5,8.3,8.6,10.2,13.2,14.9,18.4,19.6,18.9,16.1,12.7,6.8
1941,8,8.5,9.7,9.6,12.5,17.8,21.2,21.3,17.4,14.7,11.2,7.7
1942,5.5,6.4,9.7,12,15,18.2,20.6,20.3,20,16.9,12.2,10.5
1943,7.3,8.2,9.4,11.4,15,17.3,21.2,22.2,21.4,16.9,12.6,10.5
1944,7.1,6.2,6.8,11.1,14.9,18.7,20.6,21.5,20.7,15.5,11.6,9
1945,5.5,6.8,8.3,12.5,16.6,20.5,22.4,22.1,19.4,14.1,11.3,8.8
1946,7.5,7.2,8.7,11.2,14.2,18.2,20.9,22.1,20.9,16.4,13.1,8
1947,6.8,8.8,11.2,11.6,14,19.1,22.2,22.1,20.4,16,13.4,8.7
1948,8.6,8.1,8.7,11.1,14.8,18,19.9,21.2,18.6,16.7,11.7,8.8
1949,8.1,7.6,7.2,11.3,14.5,18.2,20.7,20.7,20,16.6,11.7,10.2
1950,6.8,7.1,9.2,11.4,15.7,20,22,21.6,20,16,11.8,9
1951,7.9,8.1,8.9,10.2,13.5,18.2,20.3,20.9,19,13.8,12.2,7.9
1952,6.7,5.6,8.4,11.3,14,19.8,22.4,22.6,20.4,16.3,10.9,8.7
1953,4.9,5.7,6.2,11,13.6,17,20.7,19.8,18.9,15.9,10.8,9.9
1954,5.5,6.4,9.2,9.5,12.3,18.2,18.9,19,19,13,10.7,8.4
1955,10.2,9.4,9,9.4,14.6,18.4,21.1,20.4,18.3,14.5,11.1,9.8
1956,9.2,5.5,8,10.3,14,17.1,20.7,21.8,20.8,14.9,10.9,7.9
1957,7.4,8.7,7.7,10.3,13.1,18.5,20.4,21.5,18.9,16.8,12.4,8.7
1958,7.4,8.3,8.7,9.6,14.7,18.4,20.6,22,19.4,16.3,13.4,10.8
1959,7.2,7.6,10,10.6,14.1,17.5,20.7,21.5,20.1,14.4,11.8,9.7
1960,7.9,9.3,9.8,10.2,14.8,18.3,19.8,20.4,18.3,16.8,12.8,10.1
1961,8.1,7,7.9,11.7,14.1,17.9,20.5,20.5,19,15.4,13,9.3
1962,8.8,6.4,10.1,10.6,13.8,17.2,20,20.8,19.9,16.7,12.8,7.9
1963,7.9,7.8,7.9,10,13.4,17.3,21,20.8,19.2,14.3,12.3,11.1
1964,7.1,8.1,10.3,10.7,14,18.3,20.6,20.5,17.7,15,11.9,8.7
1965,8.6,5.4,8.1,9.6,12.7,16.6,22.3,21.1,19.7,16.1,13.4,9.8
1966,8.6,8.5,8.1,11.2,14.3,18.3,20,20.5,18.9,16.3,10.7,9
1967,6.4,8,8.2,10.7,13.7,16.5,20.8,21.5,18.9,16.2,13.3,8.6
1968,7,8.4,7.6,11.2,15.3,18.4,21.1,21.6,19,14.9,12.9,10.5
1969,6.9,7.7,10.6,10.3,14.9,17.5,19.9,21.3,20,16.5,13.6,8.2
1970,9.3,8.1,8.4,10.8,13,18.4,19.9,21.3,19.4,14.5,11.4,9.6
1971,8.3,8,7.5,11.3,14.3,17.1,20,22.1,18.2,13.6,10.4,7.3
1972,7.8,8.7,9.6,10.7,13,17.9,19.1,19.2,18.9,14.1,11.1,10.3
1973,9.1,7.6,7.9,9.8,14.1,18.9,21.4,20.9,19.6,15.6,11.1,10.6
1974,8.2,7.6,9.7,10.8,13.6,17.8,20,21,19.1,14,10.7,6.7
1975,6,7.2,9.3,10.1,14.2,17,19.7,20.4,18.9,14.4,11.6,9
1976,7.3,7.8,8,9.2,14.4,17,20.6,20.1,17.4,16.1,11.5,10.3
1977,9.3,8.8,9.2,10.3,14.7,16.9,20.9,20,18.4,13.6,12.2,7.9
1978,7.6,8.7,8.4,10.6,13.5,17.3,19,20,17.8,14.8,10,10.3
1979,8.8,9.6,8.8,10.3,12.9,18.2,20.6,20.6,18.3,16.7,11.1,8.7
1980,7.1,7.7,9.7,9.2,13.1,16.8,19,21.5,19.1,15.9,13.2,7.6
1981,6.5,6.7,9.5,11.3,14.4,18.9,20.6,20.7,20.6,17.1,9.6,10.6
1982,10.4,7.2,8.3,10.7,13.7,19.9,21.8,21.9,20.6,17.3,13.6,8.9
1983,5.8,6.1,8.3,10.4,13.9,17.2,21,22,19.2,15.2,13.5,8.3
1984,7.6,6.7,8.4,10.6,14.9,17.7,21.1,21.7,18.9,16.7,14.1,10.4
1985,9,9.5,9.4,12.2,15,19,21.3,21.4,19.6,15.9,13.9,10.2
1986,7.9,8.2,9.2,11.2,15.1,18,21,22.9,19.8,17,13,8.3
1987,8.3,9.2,7,9.6,13.2,18,22.5,22.8,20.9,19.1,13.1,9.9
1988,10.1,9.4,8.9,12,15.7,18.8,22.1,23.1,20.1,16.6,12.4,9.6
1989,7.6,8.3,10.3,11.7,13.9,17.7,21.9,22.6,20.4,15,13,11.6
1990,9,9,8.8,11.3,15.2,18.9,19.9,21.4,20.3,18.9,13.4,8.2
1991,7.6,8,11.1,10.3,11.9,17.4,20.5,22,21,17.4,11.8,7.3
1992,7.2,7,9.1,10.8,14.4,17.8,20,22.1,19.7,17.8,13.1,10.9
1993,7.2,6.5,7.4,10.3,14.5,19,20.7,22.1,19.8,16.2,13.1,9.5
1994,8.8,8.4,8.5,10.6,15.2,18.4,22.1,23.1,20.7,17.2,13.1,9
1995,7.4,8.4,8.3,9.8,14,18.9,22.1,22.7,19.4,15.1,11.8,11.4
1996,9.8,8.6,9.3,10.8,15,18.6,20.7,22.3,19.1,15.2,13,10.1
1997,9.5,7.2,8.3,9.1,14.4,20.4,20.5,21.5,19.9,16.7,13.6,10.1
1998,7.9,8.2,7.8,11.8,14.5,19,21.3,22,19.5,16.2,10.8,7.2
1999,7.3,5.8,8.1,10.7,15.7,19.6,21,23.4,20.9,17.3,13.6,10.7
2000,6.5,7,9.5,12,16.8,19.4,21.5,22,20.1,16.6,13.8,10.3
2001,10.1,8.5,11.2,11.1,15.9,18.5,21.8,22.4,20.3,17.9,13.2,7.5
2002,6.3,9.5,10.6,11.5,15.2,19.2,22,21.6,19,15.7,13.8,9.5
2003,9.1,6,7.6,11.4,15.6,19.7,23.3,23,19.9,17.8,13.9,9.3
2004,7.4,7.7,9.5,11.8,13.5,18.1,21.1,21.9,19,16.8,12.6,10.7
2005,6.2,6.3,8.3,11.2,15.4,19.6,21.9,21.3,20,16.8,12.6,9
2006,8.1,7.9,9.1,11.3,15.4,18.1,21.9,21.6,19.6,16.7,12.3,10.6
2007,9.1,9.4,10.1,12.2,15.1,19.4,21,22.3,19.6,16.8,12.6,9.2
2008,9.9,7.2,9.9,13.1,16.2,19,22.1,22,19.9,16.8,13.1,9.9
2009,9.9,7,9.6,12.2,15.6,19,22,23.6,21.1,16.2,12.4,10.8
