1901,6.7,5.2,11,12.9,21.2,25.2,27.4,25,21.7,16.8,8.5,4.6
1902,4.9,3,10.7,15.3,23.6,26.1,27.5,26.6,21.6,17.3,14.3,6.3
1903,5.2,8,14.1,14.9,20.5,22.4,26.3,26.3,22.1,17,9.1,4.2
1904,3.9,6.5,12.2,13.4,20.4,24.8,25.6,24.7,24.3,17.4,11,6.8
1905,2.9,2.4,14.2,16.6,22.3,25.5,26.1,25,23.9,16.7,11.7,5.8
1906,7.5,7,9.1,17.9,20.5,25.2,24.9,26.2,24.3,15.3,11.9,8.2
1907,11.1,7,16.5,12.8,20,23.9,27.1,26,23.4,16.5,10.3,6.9
1908,5.6,5,15.6,18.3,21.3,24.6,25.9,25.3,22.1,16.1,13.2,9.1
1909,8.2,9.7,11.4,16.5,20,25.2,25.5,25.7,22.4,16.3,14.5,3.6
1910,5.8,5.8,16,16,19.6,22.9,25.2,25.3,24.3,18.3,9.8,4.3
1911,8.9,10.6,12,15.6,22.3,26.5,24.9,25.6,26,19.1,8.6,8.5
1912,3.3,4.7,10.1,16.7,21.4,23,25.4,25.2,24.5,18,10,7.7
1913,9.9,7.7,11.9,15.5,21.8,24.5,26.7,26,21.5,15.8,12.4,7.8
1914,7.3,6.3,9.4,16.7,21.8,27.3,26.2,25.1,22.1,17.1,11.1,4.9
1915,5.7,7.8,6.5,17.9,21.8,24.2,26.1,25.2,23.9,18.7,12.4,6.5
1916,9.6,7.1,10.6,15.7,22.7,24.2,25,25.9,22.2,17.1,11.5,7.2
1917,9,7.1,11.5,17.7,17.9,24.1,25.9,24.4,21.5,14,10.7,2.5
1918,1.8,10.5,15.3,14.7,22.5,25.1,25,26.2,20.5,19.1,11.2,9.3
1919,6.8,7.3,12.5,16.8,20.3,25.2,25.6,25.3,23.6,21.4,12.7,7.2
1920,6.3,5.7,9.9,15,19.7,25,25.5,24.3,23.6,18.1,10.3,6.3
1921,7.9,9,16.2,16.2,20.3,26.3,26.3,25.1,26.5,16.3,12.7,9.3
1922,6.5,10.4,12.1,17.2,20.8,25.1,25.7,24.6,24.2,17.5,11.8,10.4
1923,9.2,6.9,11.4,15.8,18.9,24.1,25.4,25.5,23.9,16.8,9.9,10.4
1924,3.4,5.9,9.3,15.2,18.8,25.5,25.9,27.1,20.4,17.2,12.5,7.6
1925,6.4,10.7,12.8,19,20,26.8,27.3,26.7,25.5,16.3,10,5.9
1926,5.9,8.5,7.5,15.1,21.2,24.5,26,26.4,25.4,18.4,8.9,8.3
1927,7.3,12.9,12.7,18.1,22,23.9,25.4,24.8,24.3,19.2,13.3,7
1928,6.2,6.9,11.2,14.6,19.7,23.7,26.2,26.1,22,18.6,10.9,7.4
1929,7.5,6.7,13.6,18,20.4,24,25.5,25.8,22.1,15.3,11,6.5
1930,6.3,10.9,9.4,17.1,21.3,24,27.7,26,24.4,15.6,9.9,4.5
1931,6.5,8.6,8.2,15.3,19.4,26.5,27.6,25.3,25.5,18.8,14.9,11
1932,10.9,12,9.4,16.6,19.9,25.2,27.3,25.9,22.4,16.4,9,8.7
1933,10.2,7.3,11.4,15.3,23.4,25.8,25.4,25.6,25.4,17.8,10.9,11.2
1934,7.6,4.6,10.1,16,20.6,25.7,27.1,26.2,23.5,17.7,12.1,5.5
1935,7.2,7.4,14.1,16.3,21.3,24.5,26.5,26.7,23.1,17.7,12.3,2.5
1936,4,5.5,13.4,15.2,22.7,26.3,27.6,26.7,24.5,18.2,10.3,8.3
1937,11.8,7.2,10.4,15.3,21.5,26.4,26.5,26.6,22,15.1,8.7,6.3
1938,6.3,11,14.6,16.3,21.7,24.1,26.2,27.4,23.2,17.8,12.2,6.5
1939,7.4,10,13,15.5,20.6,26.1,26.8,25.6,24.5,18.3,10.1,7.6
1940,-0.9,5.8,9.9,15,19.7,25.1,25.1,26,22,17.7,10.5,8.6
1941,6.7,4.4,8,17.3,22.4,25.3,26.8,26.9,24.9,20.8,11.3,8.7
1942,6,4.7,10.9,17.3,20.9,25.5,27,25.4,22.5,17.5,12.3,6.6
1943,8,8.3,10.2,16.1,22.1,27.3,26.7,27.2,21.8,16,10.5,7.3
1944,7.1,10.5,11.6,15.7,22.6,26.9,25.8,25.3,23.3,17.1,10.7,5
1945,6.4,9.3,16.3,17.8,19.3,25.6,26.4,25.9,24.8,16.3,11.8,3.6
1946,7.2,8.8,14.9,17.7,20.3,24.3,25.7,25.5,22,16.9,14.1,9.3
1947,8,3.8,7.5,17.6,20.4,24.2,25,26.5,24.1,19.2,9.4,7.5
1948,3.4,9.2,13.6,18.7,21.3,25.9,26.6,25.4,22.2,15.9,12.8,9
1949,11.4,11.1,11.8,15,21.7,24.4,26.6,25.2,21.3,19.2,10.6,7.9
1950,12.6,10.3,9.6,14.8,22.3,24.9,25,24.5,21.6,18.5,8.3,4.4
1951,7.1,8.5,11.2,15.5,20.9,25.2,26.4,27.5,23.4,18.3,8.1,8.2
1952,9.9,9.5,10.9,16.3,21.7,27.5,27.7,25.4,21.5,14.9,11.3,6.3
1953,8.8,9,12.6,15.3,23.2,25.6,25.9,26.2,22.4,17.8,11.5,6.4
1954,7.4,10.2,11.7,18.8,18.1,25.6,27.9,28.1,25.4,18.1,9.5,6.4
1955,6.4,8.7,13.2,18.8,22.5,22.8,26.4,26.7,23.9,16.5,10.3,6
1956,5.2,10.3,11.8,15.9,22.3,25,26.4,26.9,22.1,18.1,10.1,12.2
1957,7.7,12.4,10.8,18,21.5,25.4,26.2,26.4,23.1,14.8,12.1,8
1958,3.8,3.3,9.7,16.7,21.5,25.2,26.2,26.2,23.3,16.6,13.6,5.8
1959,5.8,8.8,10.6,17.2,22.3,24.9,26.3,27.2,23,18.2,10.9,7.8
1960,6.8,6.6,5.6,17.6,20.2,25,26.9,26.3,23.3,18.6,11.4,4.8
1961,3.9,9,13.3,13.9,19.2,23.2,25.2,24.7,23.1,16.5,13.4,6.5
1962,5.2,10.3,9.6,14.9,24.1,24.5,26.1,25.3,21.5,17.3,9.7,4.8
1963,3.2,4.2,13.6,17.4,20.4,23.5,24.5,25.6,21.8,18.3,10.9,2.1
1964,5.2,4.8,10.7,16.1,20.7,25.6,24.8,24.6,22.7,14.9,13.1,8.1
1965,6.4,6.8,9.5,17.6,22.2,22.5,25.2,25.6,22.9,15.7,12.2,7.2
1966,3,6.4,10.2,16,19.8,23.1,26,24.5,21.5,15.3,11.4,6.5
1967,6.8,5.7,13.7,18.4,19,22.7,23.6,23.6,19.4,15.3,9.2,8.8
1968,4.1,3.8,11.3,16.3,19.6,24.3,25.7,26.4,21.8,16.6,10.1,4.6
1969,4.7,6.1,8.4,17.1,20.6,25.3,27.3,24.6,21.5,16.9,10,5.4
1970,2.3,6.6,11.5,17.8,21,23.7,26,26.2,25,18.3,9.7,8.6
1971,6.1,6.7,8.7,16.1,19.1,25.2,24.8,24.9,23.2,19.4,10.6,11.3
1972,8.3,6.1,11.5,16.4,19.2,22.4,25.1,25.6,23.8,16.3,10,9.1
1973,5.5,6.3,14.2,14.5,18.5,24.5,26.3,25.4,24.3,18.3,13.2,6.9
1974,11.9,8.1,14.4,16.3,21.7,22.6,25.7,25,21.3,16.3,11.4,6.9
1975,8.6,8.8,10.5,15.7,22,24.2,25.1,25.8,21.6,17.8,12.4,6.6
1976,3.9,11,13.8,16.7,18.7,23.4,25,24.8,21.3,13.9,7.3,4.6
1977,-0.9,6,13.2,17.7,21.4,25.3,26.8,25.8,23.5,15.4,12.6,5.9
1978,1.3,4.1,10.9,16.8,19.8,25,26.3,25.9,24.5,16.9,14.7,7.7
1979,3.2,5.5,13.3,17.1,21.1,24.1,25.8,26.6,22.5,16.8,12.5,8.1
1980,7.3,5.5,11,16.8,21.7,25.8,27.9,28.6,25.8,16.3,11,7.2
1981,4.3,8.1,11,19.7,19.7,27.3,27.8,25.3,22.4,15.8,12.4,4.1
1982,3.7,8.8,13.7,14.9,22.4,24.7,26.4,25.4,21.5,17.2,12.3,10.2
1983,5,7.3,11.1,13.9,20.1,23.5,27.7,27.7,21.8,17,11.1,4.8
1984,4.7,8.8,11.3,14.9,20.1,25.9,25.3,25.7,22.2,21.2,10.4,12.1
1985,2.8,7.3,14,17.9,21.2,25.5,26,25.5,22.7,19.4,16.7,5.5
1986,6.4,10.3,12.7,17.5,21.9,26.9,29,25.7,23.8,18,14.4,7.5
1987,5.8,7.9,12,15.8,23.1,25.6,27.5,28.1,23.5,15.2,13.2,9.2
1988,4.1,7.5,12.7,17.2,21,25.9,27.1,27.4,23.1,15.2,12.6,8
1989,9.5,8.7,13.8,16.9,20.2,25,26.7,26.3,22.7,17.8,12.2,3.8
1990,9.7,12.2,14.3,16.5,21.2,25.9,27.3,27.3,24.3,18.2,13.7,9.6
1991,7,9.7,13.6,18.8,22.8,25,27.4,26.3,23.8,18.3,10.7,9.7
1992,7.5,11,12.3,16.6,20,23.8,27,24.8,23.1,16.7,11.1,7
1993,8.6,7.4,10.8,15.3,21.7,26.4,28.6,27.9,24.9,17.5,12,7.4
1994,4.5,9.8,13.8,19.3,20.6,26.8,26.2,26.1,23.1,17.6,14.5,10
1995,7.8,7.7,14.8,18.5,23.1,24.9,28.5,27.4,21.9,17,9,6
1996,5,8.2,10.1,16.1,23.4,26,27.6,26.5,22.9,17.3,10.8,9.1
1997,8.1,10.6,15.6,14.3,18.1,22.1,26.2,24.9,22.8,16.6,8.8,6.1
1998,7.9,8.5,10.3,15,22.6,26.1,27.3,25.7,24.2,18.7,13.4,9.9
1999,8.8,9.8,10.1,18.2,20.5,24,26.4,27.8,22.7,17,13.6,8.2
2000,6.2,10.4,14.1,14.8,22.7,25.6,27.5,26.6,21.6,17.8,10.6,2.9
2001,5.5,10.6,10.3,17.5,21,23.8,26,26.2,21.8,16,15.4,10.1
2002,8.2,7.7,12.5,18.3,20.1,24.8,27.1,27,24.4,18.6,10.5,6.7
2003,4.6,8.1,13.2,16.3,20.5,23.6,25.7,26.4,22.3,17.5,14.2,6.3
2004,6.1,6.7,14.6,16.7,22.6,24.5,26.5,25,22.4,19.5,13.6,7
2005,8.4,9.5,11.2,15.7,19.3,24.1,26.5,26.6,24.8,18.2,12.9,5.6
2006,9.8,7,12.4,18.9,20.9,25.2,27.4,27.4,22.3,16.5,12.1,10.1
2007,8,7.5,15.8,15.7,21.9,26.5,26,28.3,24.4,19,11.8,10.4
2008,5.8,9.3,12.1,16.3,20.8,26.7,26.8,25.9,23.7,16.7,10.4,9.2
2009,6.6,8.8,12.9,16.1,21.2,26.6,25.8,26.2,23.1,16.2,12.3,5.9
