1901,4.7,7,12,16.6,22,25,27.8,26.6,24,17.8,12.4,8.9
1902,6.6,8.1,13.4,16.8,20.7,25.7,26.1,26.5,22.5,16.5,11.7,7.5
1903,3.7,6.3,8.9,14,20.5,25,26.1,27.3,23.4,16.4,10.1,6.3
1904,5.1,7.4,11,15.4,20.1,23.9,26.8,25.8,21.9,17.1,13.4,6.3
1905,4.4,5,8.8,15.5,19.9,24.6,26.5,26.1,22.7,18,12.4,6
1906,5,6.3,9.6,13.4,20.7,23.7,26.1,25.5,22.2,18.2,12.4,8.5
1907,6.4,5.7,9.8,14.5,20.9,23.9,26.7,25.9,22.3,17.8,10.3,7.2
1908,5.8,5.6,10.4,15.9,19.7,25.4,26.1,26.9,23.8,17.6,12.7,7.3
1909,4.7,8.5,12.5,16.5,20.6,23.8,27.5,26.6,22.8,17.8,12.7,7.3
1910,5.1,7.4,8.4,13.6,19.9,23.3,26.3,26.7,22.7,17.3,11.4,4.5
1911,1.5,4.5,8.4,13.7,19.2,22.7,26.8,25.7,21.7,17,10.8,7.5
1912,4.7,7.6,11.1,14.7,19.6,25.5,26.1,25.2,22.5,18.1,12,5.9
1913,4.9,4.9,8.7,15.4,21.4,23.9,26.2,24.7,22.9,18.1,12,7.1
1914,8.1,6.4,10.6,15.9,20.1,23.7,25.5,26.1,22.3,19.2,12.3,6.8
1915,6.6,7.5,11.5,14.9,20.2,26.1,26.3,26.6,23.6,16.6,12,6.9
1916,5.2,5,11.9,14.1,21.1,24.7,27.5,27,22,15.5,11.6,7.3
1917,5.6,7.7,9.4,16.4,20.6,24.5,28,26.9,23,16.2,11.9,5.9
1918,5.4,6.8,9.1,13.9,19.7,22.7,26.6,26.1,22.7,18.7,12.2,7
1919,6.7,7.9,10.2,16.2,19.6,23,26.1,26.5,22.8,18.4,12.7,7.6
1920,6,4.6,11.9,15.2,20.8,25.1,26.2,26.5,23.6,19,11.7,3.5
1921,5.5,6.5,11.3,17.7,19.5,25,27.9,26.5,23.3,17.1,11.8,6.3
1922,6.7,6.8,10.4,15.6,19.7,25.8,27.1,26.9,22.4,17.5,13.4,8
1923,5.6,6.4,12,13.8,20.1,24.9,27.1,25.4,21.9,17.7,10.5,7.6
1924,6.8,6.7,13.4,15.5,21,25.6,27.3,26.1,22.6,18.8,12.2,6.3
1925,2.2,3.9,12.3,16.5,20.6,23.9,25.9,26.7,23.5,18.4,11.3,8.2
1926,6.6,8.2,11.1,13.8,20.8,25,26.3,26.6,21.7,17.2,12.5,6.7
1927,5.7,5.8,10,14.5,21.8,25.7,27.4,26.2,23.9,19,12.5,6.2
1928,5,7.4,9.6,18,21.1,25,27.5,25.6,24,19.3,11.1,6.8
1929,6.2,7,10.7,16,20.7,23.5,26.2,26,23.5,17.7,11.9,6.2
1930,3.9,7.7,11,16.3,20,24.2,26,26.2,23.2,17.8,13,6.7
1931,6.8,6.4,11.4,15.7,19.9,24.7,26.8,26.3,24,16.7,11.9,6.1
1932,6.6,6.4,11.7,14.8,19.2,23.9,26,25.6,22.3,17.4,12.5,4.2
1933,4.5,7.4,10.1,14.1,20,22.5,25.8,26.5,22,17.7,11.6,7.5
1934,3.7,8,10.4,16.3,18.2,24.6,26.1,25.9,22.5,17.7,12,7
1935,4.2,7.7,12.2,14.6,19.8,24.8,26.8,27,24.2,19,12.6,8.4
1936,4.8,8,10.3,15.9,20.8,23.2,26.6,27.2,22.5,17,12.7,5.9
1937,3.3,6.7,10,15.1,21.4,24.3,26.8,26.9,23.7,18.9,12.7,7.5
1938,6.9,7.6,8.3,15.3,20.1,23.5,27.2,27.3,24.7,16.6,12.4,7.7
1939,6.8,6.7,9.8,13.2,20.5,24.5,26.4,25.9,22.4,18.5,12.9,8
1940,6.9,9,8.7,17.1,20.9,24.6,26.3,27.1,23.5,19.2,12.6,8.2
1941,6.2,8.6,11.9,15.1,21.3,26,27.5,26.4,22.6,17.1,11.8,6
1942,5.1,6.6,11,15.2,21.4,25.3,27.1,26.8,22.5,18.5,13.2,6.5
1943,4.8,5.7,8.8,14.2,20.4,23.3,27,27,22.4,17.3,11.7,8.3
1944,6.5,7.9,13.2,15.2,20.7,25.3,27,25.4,22.5,17.4,12.1,4.7
1945,4.6,6,9.2,14.7,19.7,24.7,26.7,26.6,22.5,16.9,12.1,7.5
1946,4.4,7.8,10.8,15.9,21.7,24.8,26.1,25.9,23.4,17.9,11.3,6.8
1947,7,7.4,12.3,16.3,20.5,25.3,27.6,26.2,21.9,18.3,13,8
1948,6.7,8.1,9.9,14.4,21.1,25.4,27.5,26.8,22.4,16,10.7,6.3
1949,3.7,5,10.1,14.5,19.6,25,26.9,26.5,22,15.4,11,7.3
1950,2.9,4.6,10.1,15.2,20.5,24.5,27.2,26.3,22.8,18.5,11.6,6.9
1951,6.5,6.8,10.2,16,21.1,25.3,27.6,26.8,24.3,18.4,11.9,6.8
1952,5,8.1,11.3,16,21,23.6,27.2,26.4,23.6,17.9,11.7,7.7
1953,7.4,8.1,9.9,16.4,20.6,25.1,27.5,26.7,23.1,18.4,12.4,5.7
1954,7.6,7.1,11.4,15.8,21.3,25.2,27.1,26.2,23.1,18,12,7.7
1955,5.6,7.8,11.6,16.3,20.5,24.7,27.9,27.2,23.3,16.7,12.7,7.2
1956,3.7,8,11.2,15.1,19.9,24.8,27.6,25.6,23.1,16.6,10.7,6.3
1957,3.6,5.6,10.3,13.1,18.3,24.2,26.7,25.6,23.2,18.3,11.1,6.7
1958,5.9,6.3,12.4,17.3,21.8,24.9,27.2,27.1,23.1,17.8,10.5,7.6
1959,4.8,4.3,10.5,17.4,20.8,25.2,26.9,27.6,23.7,18.2,10.8,5.6
1960,7.4,9.6,9.6,15.3,20.8,25.6,27.4,27,23.3,16.8,12,6.8
1961,5.8,6.4,10.2,13.7,21,24.7,27.8,26.4,23.4,17,10.8,8.1
1962,6,9.5,12.3,15.3,20.8,25.1,27.3,26,22.2,17.6,10.9,8.1
1963,7.5,9.9,10.6,15.9,18.1,25.1,27.6,26.9,22.6,18.1,11.2,5.1
1964,1.3,6.9,12.5,15,20.5,25,27.6,26.7,22.4,15.3,10.6,3.2
1965,3.5,7.6,11.7,13.5,21.3,24.7,26.4,25.8,22.9,18.4,12.3,6.6
1966,8.9,8.1,10.7,15.3,21.6,25.2,26.4,26.6,23.3,17.9,11.2,7.5
1967,5.6,6.2,9.2,13.2,20.2,23.4,27.6,25.9,22.7,18.1,11.2,5.1
1968,5.2,4.2,10.9,13.9,19.2,23.8,26.1,26.1,22.3,17.5,12.5,8.3
1969,5.8,6.8,14,14.8,20.3,24.7,26.6,25.8,22.1,18.6,10.4,8.6
1970,5,8.3,11,17.5,21.4,25.4,27.2,27.4,22.4,17.3,12.7,6.6
1971,5.1,7,11.8,14.8,22.2,24.5,27.5,26.5,22,16.6,11.8,6.5
1972,3.6,3.1,9.4,14.9,18.7,24.7,27,25.5,22.8,18,12,4.2
1973,3,9.5,11.3,16.8,21.4,24.8,27,26,23.4,18.2,10.6,6.8
1974,4,4.8,11.7,15.7,20.9,25.3,26.9,26.7,22.7,16.6,12.3,5.2
1975,4.7,6.1,10,15,20.7,25.2,27.8,27.2,23.6,16.8,11.5,6.5
1976,6.2,6,8.6,14.4,20.4,25.2,27.7,26.8,23.4,18.4,11.8,8.6
1977,3.6,8.6,13.8,15.9,21.8,26.5,28.6,27.3,23.8,17.7,11.3,9.3
1978,6.9,8.8,11.2,16.3,21,25.2,27.7,26.8,23.1,18.4,10.5,9.2
1979,6.3,9.7,10.5,18,20.8,26.4,28.1,26.4,23.1,18.7,12.7,6.2
1980,5.2,7.5,11.6,17.4,21.2,26.1,27.7,27.2,23.1,18.3,13,7.3
1981,7.3,8.4,12,16.4,21.1,25.1,27.7,27.4,22.5,17.5,12.7,8.9
1982,5.8,4.9,9.6,17.2,22.6,26.1,26.8,27.5,23.5,18,9.9,4.6
1983,4.9,6.1,8.6,14.6,22.5,26.2,28,27.5,23.7,16.7,12.7,7.3
1984,6.2,7.8,12.3,17.5,19.5,25.2,27.7,27.3,23,16.7,12.4,6.7
1985,7.9,7.4,11.6,16.6,21.3,25.7,27.9,26.7,23.5,17.4,12.9,7
1986,6.1,6.8,10.4,16.3,22.3,25.5,27.9,27,22.9,19.6,11.3,5.5
1987,6.2,8.9,10.7,16.4,23.6,26,27.6,27.5,24.3,18.3,13,8.2
1988,5.4,7.3,11.9,16.5,22.3,25.7,28.7,27.4,24.4,19.3,12.3,8.1
1989,3.8,4.7,11.1,15.6,21.6,26,28.3,27.7,23.9,18.6,12.5,7.1
1990,4.5,7.1,11.3,16.3,22.8,26.2,28.5,27.8,24.4,18.6,13,8.8
1991,6.5,6.9,11.1,17.3,21.2,25.7,28.1,27.4,24.1,18.9,12.5,8.4
1992,2.4,5.5,7.9,14.6,20.3,25.6,27.5,26.7,22.9,17,12.6,6.8
1993,4.5,7.3,10.2,15.9,21.4,25.4,28.1,28.1,24.2,18.9,13.1,8.8
1994,7.7,7.9,11.4,17.8,21.7,26.5,29.1,28.3,23,18.7,13.2,5.6
1995,7,7.7,10.7,15.3,21.4,25.7,28.3,27.7,23.7,18.3,12.7,6.2
1996,4.8,8.8,10.9,16.1,21.9,26,28.3,27.8,24.8,18.1,12.4,9.3
1997,6.6,7,9.3,15.1,21.8,27,29.8,28.4,24.9,20,11,7.8
1998,5,7.9,11.3,17.2,23.1,28,29.8,29.3,25.8,19.8,13.9,10.5
1999,7.4,9.5,11.4,18.5,23,27.5,29.2,29.1,25.2,20.1,13.6,8.2
2000,6.1,7.6,11.6,19.3,24.5,26.9,29.5,29,24.7,19.1,10.7,8
2001,6.2,8.2,13.6,17.6,25.1,28.2,30.3,29.5,25.5,20.3,12.4,9.9
2002,5.7,8.4,13.3,16.8,24.4,27.1,29.1,29.6,26,20.6,12.5,8
2003,6.3,8.8,11.5,14.1,19.7,28.5,30.7,29.5,25.6,20.2,11.4,8.3
2004,8.3,9.2,14.5,16.5,23.2,27,29.1,29.3,24.4,19.3,13.2,5.8
2005,5.2,6.3,11.3,16.1,22.3,27.4,29.8,29.7,23.9,18.2,11.8,10.6
2006,5.5,10.1,12.6,16.8,22.3,27.2,29,27.8,24.1,19.7,12.4,3.8
2007,4.4,7.4,11.2,17.3,23.2,28.5,29.2,28.4,23.8,19.1,13.1,7
2008,3.3,8.3,14.4,18.4,23.3,27.5,28.9,27.8,23.9,19.4,11.3,6.7
2009,5.2,10.3,12.4,15.6,23.6,25.9,29.4,27.9,23.6,18.5,12.8,6.3
