1901,7.5,9.7,17.2,22.6,27.7,29.3,27,24.5,24.6,21.5,14.7,11.2
1902,10.6,12.4,19.1,23.9,27.4,27.4,26.5,26,23.6,19.9,13.8,9.5
1903,9.2,10.3,14.8,21.4,26.9,29.1,27,24.6,24.1,19.5,12.3,8.9
1904,8.9,11.6,15.6,23.5,27,27.4,24.4,24.2,23.9,19.9,13.7,10
1905,7.5,7.7,13.7,20.7,28.7,28.3,25.7,26.3,24.7,20.4,15.4,10.2
1906,7.7,9.2,14.9,22.2,28.6,27,25.4,24.8,22.8,19.8,14.7,10.4
1907,10.4,10.1,14.8,21.2,25.6,27.9,27.8,23.3,23.3,19.7,14.6,8.9
1908,8.6,10.9,15.5,23.2,26.8,28.1,23.8,23.2,22.7,18.7,13.2,8.8
1909,8.3,10.3,16.5,21.1,25.8,26.8,24,23.3,22.3,18.9,14.1,8.9
1910,8.4,11.4,16.2,21.4,26.8,26.8,24.3,24,23.5,18.3,12.3,9.3
1911,10.2,11.5,14.4,22.1,28.2,27.2,27.5,26,23.2,20.2,12.7,10.4
1912,10.1,12.8,15.6,22.9,27.9,29,25.8,24,22.3,19.4,12.8,9.6
1913,9.3,11.2,14.3,23.8,26.1,26.8,25.3,24.5,24.1,20.6,14.2,9.8
1914,11,10.8,15.6,23.2,28.3,27.2,25.1,24.2,24.2,19.6,15,9
1915,8.9,9.9,16.6,22.1,28.3,28.8,27.2,25.6,25.8,21.3,14.4,10.4
1916,10.1,10.2,18.6,23.6,27.2,26.5,26.2,24.2,23.5,18.4,11.9,8.8
1917,9.9,11.5,16,20.1,24,26.1,23.9,23.6,22.4,17.7,11.3,9.4
1918,7.7,11.7,15.9,20.7,27.8,26.9,27,25.8,23.9,20.1,14.7,9
1919,9.2,10.8,16.6,21.9,27.1,28.3,24.7,23.9,23,19,13.9,9.3
1920,9.4,10.7,16.9,22.1,24.4,25.9,24.2,24.2,25.1,21,15.2,10.1
1921,10,11.6,18.7,24.8,28.4,28.3,27.2,24.1,22.9,19.3,13.8,11.2
1922,8.7,12.8,17.4,23.6,27.2,27.3,25.5,23.9,22.8,19.2,13.6,9.2
1923,9.3,10.4,17.3,22.8,26.5,29.1,25.8,23.4,23.8,19,13.2,10.1
1924,8.6,11.5,18.2,23.3,25.5,28.7,25.8,24.6,22.8,18.3,12.6,9.7
1925,6.8,9.2,17,24.7,26.7,25.6,24,25.4,24.9,21.2,14,10.1
1926,9.7,13.4,15.9,20.1,25.9,29.5,26,24.3,23,18.8,12.1,9
1927,7.2,9.6,15,21.7,26.3,27.8,24.8,23.2,23.1,19.3,12.3,10.3
1928,8.7,11.6,16.8,22.5,27.7,27.5,25.6,25,23.4,19.8,14.3,9.1
1929,8.3,10,18.1,23.3,27.8,27.6,25,23.7,24.1,19.3,14.6,8.4
1930,8.6,10.7,17,22.1,27.2,27.6,24,23.9,25,20.5,13.2,10.1
1931,10.5,9.9,15.9,23.9,27.4,29,26.3,24.6,23.4,18.8,13.4,10.1
1932,10.2,10.1,16.4,22.4,26.7,28.1,25.1,24.1,23.7,19.7,12.9,9.5
1933,7.8,11.5,16.5,21.5,25.2,26.7,24.8,23.1,22.6,18.8,13.5,9.6
1934,7,12.3,15.3,22.5,26.7,27.4,24.8,23.7,22.9,18,12.8,10.6
1935,7,11.3,16.1,20,27.2,28.8,24.9,24.1,23.1,18.8,14.1,10.1
1936,7.8,11.4,15.8,22.2,28.7,25.9,24.9,24.4,23.7,19.9,14.2,9.5
1937,8,11.8,14.9,21.9,27.2,28.5,24.9,25,24,19.1,14.5,8.5
1938,8.9,9.7,18,23.6,28,26,25.2,24.8,24.8,20.5,12.6,9.9
1939,10,11.8,14.2,21,27.3,26.8,25.6,26.1,23.6,20.1,13.7,10.6
1940,9.7,11.2,14.5,21.5,27.9,27.9,26,24.1,23.5,19.9,14.5,9.4
1941,8.2,12.3,18,24.1,28.1,27.7,26,25.4,24.5,21.4,14.3,11.1
1942,8.1,12.1,17.7,24.2,27.5,29.2,24.8,24.2,23.1,19.5,14,9
1943,9.2,11.2,17.2,21.7,28.1,27.3,25.1,23.3,23.3,19,13.9,10.6
1944,8.7,11,15.6,21.7,27.9,27.2,25,24.1,23.5,18.7,14.3,10.8
1945,7.1,10.3,16.9,21.6,26.6,27.8,24.7,24.6,23.1,19.1,13.1,8.4
1946,8.9,12.7,15.9,24.5,27.1,27.6,25.2,23.8,23.4,20.1,12.6,9.9
1947,7.7,11.9,17,23.1,28,28.2,26.3,25.4,22.9,17.7,14.4,9.9
1948,8.7,10.6,16,23.3,28.4,28.5,25.9,23.9,23.6,20.3,13.5,9.8
1949,10.3,11.5,17,23.9,28.7,27.5,25.3,24.6,24.8,19.7,12.7,8.9
1950,9.6,9.1,15.5,21.6,27.4,27.8,24.9,24.1,23.3,18.9,12.1,7.9
1951,7.9,10.4,15.9,20.6,27.1,27.4,26.8,24.3,24.7,21.8,15.1,9.9
1952,9.7,13,16.2,24,28.2,27.1,25,23.7,23.9,20,13.4,10.4
1953,8,13.1,19.2,23.1,27.4,28.6,26,24.2,23.6,19.2,13.4,11.3
1954,7.7,12.3,16.7,23.2,28.4,28.4,26,25.3,23.4,17.7,14.1,9.5
1955,10,11.1,18.1,20.1,27.1,28.1,25.9,24.7,24.5,19.2,11.3,10
1956,9.4,9.8,16.8,22.7,28.1,28,23.5,23.7,23.9,18.6,12.1,10.4
1957,8.7,9,16.1,21.6,25.4,26.7,25.4,24.7,22.4,19,14.6,10.4
1958,10.4,11.3,17.2,24,27.2,27.2,25.1,24.9,23.7,19.1,13.5,10.9
1959,8.4,10.1,16.4,22.3,26.5,27.7,24.4,23.4,23.7,20.5,13.1,9.6
1960,7.5,11.3,15.7,21.1,25.7,27,24.6,23.8,23.9,19,11.8,10.1
1961,8.4,9.6,16.8,21.3,26.7,26.3,25,24.5,23.6,18.6,13.2,7.2
1962,5.9,11.4,16.1,22.4,26.7,26.7,25.3,24.1,23.8,16.7,12.9,10.1
1963,6.6,11.8,15.8,22.3,26.3,27.4,25.7,24.5,22.6,19.6,15.9,9.3
1964,5.8,10.6,17.5,23.6,25.7,26.7,25,24.4,23.5,18.7,11.4,8.9
1965,10.2,10.8,15.5,21.4,26.2,27.6,25.2,23.8,22.6,20.2,14.3,8.4
1966,9.1,13.4,14.8,22.2,25.8,27,25.5,23.4,22.9,19.6,15.4,7.4
1967,5.4,11.2,16.1,21.2,25.7,26.6,25.2,23.7,22.6,18.3,14.5,10.7
1968,7.9,9,15.1,21.1,25.2,27.8,24.6,23.9,23.3,19,12.9,9.4
1969,8.7,11.5,18.7,22.6,26.6,28.4,25.2,24.2,24.6,19.9,15.3,9.3
1970,9.4,11.5,16.4,23.6,28,26.6,24.9,24.3,23.7,19.4,11.4,8.3
1971,7.8,10.2,15,23.4,25.7,25.9,24.1,23.7,23.4,19.3,13,8.4
1972,8.4,8.5,17,21.9,26.7,27.4,25.9,24.7,21.8,19.2,13.5,9.7
1973,7.9,12.5,16.4,24.1,28,28,24.9,24,23.1,18.6,12.2,8
1974,7.1,9.4,17.3,23.5,26.6,26.9,25.5,25.2,24.5,20.9,12.3,8.9
1975,7.5,10,15.4,22.6,27.6,26.3,24.6,24.8,24,20,11.1,8.7
1976,9.8,11.9,17,22.1,26.7,26.5,25.6,23.5,22.1,19.8,15.1,10.1
1977,8.1,12.7,17.2,23.1,26.6,26.8,24.1,23.8,23,20,16.7,10.3
1978,7.9,11.4,16,23.1,28.3,27.3,24,24,23.6,19.4,14.7,9.6
1979,9.6,11,15.6,22.7,25.6,28,25.8,24.2,24,20.9,17.9,11.9
1980,8.7,12.1,17.2,24.4,27.9,27,25.4,24.4,23.9,21,15.1,10.1
1981,9.3,11.8,17,23.2,26.8,28.2,25.4,24.4,24.8,20.1,13.3,9.9
1982,10.3,11.8,15.5,22.4,25.5,27.5,26,24.5,23.3,21.1,15.9,11.2
1983,8.7,10.7,16.2,21.1,25.9,27.8,25.2,24.8,24.7,19.7,11.6,10.1
1984,8.6,8.8,17.1,23.3,27.7,27.6,24.9,23.5,22.3,18.1,12.8,10.1
1985,9.4,11,17.9,23.1,28.1,27.3,25.7,24.5,23.7,19.1,14.3,11.9
1986,9.8,11.9,17.2,23.3,26.7,27.9,25,23.8,23.8,20.1,14.8,8.4
1987,10,12.9,18.1,23.2,25.9,28.4,26.9,25.9,24.9,20.9,13.8,9.8
1988,10.6,13.3,16.9,24.2,28.7,27.6,25.4,24.6,25,19.3,13.7,10.2
1989,8,10.5,16.7,21.4,27,26.7,25.1,24.1,23.7,19.3,14.5,10.2
1990,10,12.7,16.5,23,27.4,27.4,25.1,24.7,23.9,19.3,14.3,10.2
1991,8.3,12,17.5,22.3,27.4,28.3,25.7,24.7,23.6,18.5,14.3,10.6
1992,9.6,10.9,17.3,22.4,26.9,29.1,26,25.1,22.7,20.3,14.3,11.3
1993,9.7,12.3,17,22.9,28.3,28.2,25.2,25,24.7,20.8,14.8,9.9
1994,11.5,11.8,17.5,22.2,28.2,27.8,25,24.5,23.1,19.2,14.6,10.1
1995,8.3,12.4,17,22.4,28.2,29.4,26.2,25.5,24.5,21.1,14,11.6
1996,10.3,13.3,19.4,22.8,27.1,29.1,25.7,24.2,24.3,20.5,12.5,8.7
1997,7.9,10.3,17.5,22,25,25,25.7,23.5,23.2,17.9,15.7,8.5
1998,8.8,11.6,16.5,23.8,27.7,27.7,26.1,24.8,24.3,19.4,14.8,8.9
1999,7.7,13,17.2,22.4,26.5,26.9,24.1,24.5,24.8,20.2,14.6,9.3
2000,9.2,10.5,16.1,24.9,27.8,27.1,24.5,25.2,24,20.6,15,9.8
2001,8.4,12.6,17.1,22.9,26.5,25.4,24.1,24.5,24.5,20.5,14.5,10.9
2002,8.4,11.5,17.6,24.2,27.9,27.7,26.7,25,23.6,20.7,14.9,11.4
2003,8.5,12,17,24,27.1,27.5,24.6,24.6,23.2,19.5,14.7,10.3
2004,8.9,12.4,19.5,24.5,27,26.8,26.6,24,24.7,18.8,14.6,10.7
2005,7.7,11.3,17.7,22,25.4,28.1,25.2,24.8,23.9,19,13.8,8.8
2006,9.3,14.9,16.2,22.8,27.8,26.5,25.2,24,23.5,19.9,14.3,10.4
2007,9,12.5,16.2,24.5,26.9,27.7,25.6,25,24.4,18.9,14.7,9.8
2008,8.1,9.7,18.8,22.7,25.6,25.5,25.4,24.2,23.8,20.5,14.8,12.2
2009,10.6,13.8,18.7,23.4,27.9,28.2,26.3,25.7,24.8,19.8,14.2,11.2
