1901,3.5,4.3,6.2,12.3,15.2,21.7,23.7,25.1,17.2,10.7,6.5,1.8
1902,2.2,4.3,6.8,9.8,13.2,17.3,22.9,23.4,17.9,10.9,6.8,3.1
1903,2.6,4.5,6.6,9.7,12.9,18.4,23.4,23.2,17.7,12.4,6.8,2.1
1904,1.8,3.8,5.5,9.4,14.6,18.8,23.4,23.1,17.7,12.9,7.2,4
1905,1.9,2.6,6.8,10.5,13.8,17.9,23.5,22.9,17.2,11.7,5.6,3
1906,2.3,1.8,6.2,8.8,13.3,19.4,23.4,23.5,18.3,12.3,6,1.6
1907,1.5,1.6,5.8,8.5,12.8,18.6,22.8,23.4,19,11.5,7,3.8
1908,2.9,3,5.2,8.2,14.2,17.6,23.2,22.6,19.1,12.8,7.9,4.4
1909,2.5,3.7,7.2,9.6,14.2,17.8,21.9,21.6,16.9,12.5,7.6,5.3
1910,1.8,3.7,5.3,8.5,12.2,18.2,22.5,22.2,17.6,12.1,6.7,3.7
1911,2.1,3.5,4,9.2,13,18.9,21.4,22.9,19.3,11.3,5.5,3.4
1912,1.8,6.2,7.4,8.3,14.9,19.3,19,21,17.1,10.9,5.4,2.8
1913,3.2,4.2,5.9,8.4,13.4,19.9,21.8,20.5,15.2,12.2,5.6,2.5
1914,0.8,2.7,5.8,9.3,14,17,21.8,21.9,16.9,11,5.7,2.8
1915,1.1,3.2,6.9,7.8,13.8,18,24.1,23.7,17.8,10.8,6.4,3.1
1916,1.5,2.6,5.2,8.3,13.5,18.2,22.8,22.3,17.3,12.1,5.8,3.8
1917,2,3.5,4.8,7.9,13.2,18.2,24.2,22.6,18.8,11,5.1,1.4
1918,3.2,2.9,4.6,7.6,13.1,18.8,23.2,22.7,17.3,10.1,6.1,3
1919,2,5.2,6.4,8.6,13.4,19.2,22.6,24.3,18.2,11.1,6.2,1.8
1920,2.2,4.2,6.1,10,14.2,18.9,22.8,23,18.5,11.4,6.5,3
1921,2.6,3.8,6.2,8.9,13.4,18.3,23.8,22.9,18,13.1,6.2,1.9
1922,2.5,3.7,5.5,9.1,14.5,18.4,23.9,22.7,16.9,12.1,6.7,2.5
1923,-0.2,3.8,6.7,6.8,14.2,18.5,23.6,24.6,17.2,14.3,8.7,1.3
1924,1.8,2.2,6.5,10.4,16.4,21,24.8,23.2,18.1,11.6,6.4,2.9
1925,1.3,2.3,3.7,8.7,13.3,17.3,21.8,24.4,18.2,11.2,5.6,5.5
1926,4.1,5.8,7,10.7,13.2,19.5,24.2,23.9,21.2,14,4,3
1927,2.5,2.2,6.5,10.2,15.3,21.2,22,24.7,18.1,13.1,5.3,4
1928,0.8,4.2,6.8,9.5,12.2,20.6,25.8,24,19.2,11.6,5.7,2.7
1929,3.8,4.6,6.5,10.3,12.5,19.8,24.2,23.5,17,11.8,5,3
1930,3.6,3.2,6.9,7.3,14.6,16.9,22.4,25.1,18.9,14.7,8.8,3.2
1931,1.6,3,7.3,8.7,14.5,20.1,23.5,22.7,16.7,13.7,7.2,3.8
1932,2.3,2.6,4.8,8.8,13.8,17.7,21.5,21.6,16.6,11.4,5.8,2.5
1933,1.9,4.8,5.8,11.9,16.7,18.5,23.4,25.4,16.5,13.2,4.8,1.9
1934,0.6,2.5,3.4,9.1,14.1,20,22.6,23.1,18.1,13,6.7,4.1
1935,1.4,1.5,6.7,11.4,13.5,20.2,25,22.6,20.2,10.7,7.5,4.2
1936,3.7,5,6.2,11,11.9,17.9,23.3,25.2,19.8,11.1,5,2.6
1937,3.2,6.6,7.8,13.7,15.3,20,25.5,24,17.6,12,9,3.5
1938,1.8,4.6,5.8,9.2,13.1,20.5,23.7,23.3,15.9,13,8.3,2.9
1939,3,2.8,5.6,8.4,13.8,17.9,23.5,21.7,18.5,11.9,7.3,4.3
1940,2.7,5.4,8,11.2,14.3,18.1,22.8,25.2,18,11.1,6.9,2.3
1941,3.1,6,7.2,9.3,14.2,19.6,22.4,23.8,19,14,8.4,2.5
1942,1.7,2.6,7.6,10.2,16.5,20,24.6,23.6,18,13.8,7.3,3.7
1943,2.5,2.8,5.6,11.4,14.5,19.9,22.8,23.3,17.4,12.1,5,2.1
1944,2.5,3.1,6.2,10.9,15.4,17.9,24.2,22.8,17.7,12.8,7.5,2.3
1945,0.4,3.3,7.3,13.1,14.8,20.1,23.8,21.8,20.5,14.4,9.5,5.4
1946,3.2,4.9,6.7,9,12.4,20.4,26.9,24.4,19.7,13.5,6.4,2.5
1947,2.2,4.8,9.5,11.6,13.6,20.4,23.5,23,18.6,12.1,9.2,3
1948,2.3,4.9,6.6,9.2,13.8,21,24.2,24.2,19.2,12.2,8.6,5.2
1949,2.6,4.9,5.3,11.7,13.6,19.2,24.5,25.3,17.4,14.2,8.5,4.5
1950,2.2,4.7,8.1,10.1,13.2,19.7,24.2,22,18.1,11.3,8.3,3.8
1951,1.8,3.4,8.2,10.5,12.4,20.4,23.5,23.6,19,10.7,7.5,3.6
1952,0.8,3.8,8.8,8.2,14.8,20.8,23.6,23.1,16.7,14,7.9,3.9
1953,2.3,2.1,5.2,10.6,15.8,17.7,23.6,24,16.7,11.2,7.7,4.3
1954,1.3,2.1,6,6.5,15.6,19,23.3,23.3,19,13.3,7.5,3.2
1955,4.6,4.7,5.2,10,15.8,19.3,23,22.7,18.8,12,8.6,4.6
1956,2.3,1.5,4.3,7.3,13.1,18.5,22.4,21.9,17,12.6,4.9,1.4
1957,0.9,4.7,7.4,7.5,13.2,18.3,23,22.5,18.5,10.5,5.5,1.7
1958,2.2,5.5,7.6,8.8,14.9,18.5,23.2,22.3,19,12.9,5.9,4.7
1959,3.8,2.2,7.2,11,12.9,18.7,23.3,22.6,16.2,11.9,6.3,4.2
1960,2.6,5.9,7,8.9,14.1,17.9,22.7,22.9,17.7,11.9,8.4,2.3
1961,1,6.1,8.2,11.5,15.6,17.3,24.3,23.1,18.1,12.3,6.7,5.1
1962,3.5,2.3,5.4,9.9,14.8,18.5,23.5,23.7,18.3,12.2,5.1,3.6
1963,3.7,4,7.2,9.5,11.8,17.4,23.2,23,15.8,13.3,8,4.2
1964,2.5,5.1,7.3,7.8,16.8,18.9,23.7,23.2,19.3,13.1,6.4,1.8
1965,1.1,3.1,8,8.1,15.8,19,22.9,21.8,15.4,10.8,6.2,3.6
1966,4.3,6.3,5.3,11.2,14.8,19.6,22.4,23.1,18.6,10.7,4.1,2.4
1967,2.6,2.8,7.4,7.1,13.5,18,24.1,23.3,17,11.4,5.3,1.4
1968,1.7,2.9,4.8,8.8,13.9,18.5,23.1,21.5,18.7,14.1,7.6,3.3
1969,4.7,5.2,7.9,7.1,13.8,18,23.1,22.4,15.5,10.9,7.2,2
1970,4.1,5,5.2,9.7,14.5,17.6,23.7,23,18.9,11.1,6.5,2.5
1971,3,3.1,3.9,6.6,10.1,17.6,22,21.8,17.1,12.7,3.9,2.3
1972,1.5,4.3,4.8,8.6,12.2,16.1,22.4,20.2,16,11.5,6.4,2.1
1973,1.6,2.8,5.6,9.4,15.1,17.8,22.9,22.8,18.6,11.4,7.2,2.1
1974,2.5,3.5,4.5,8,14.3,17.8,23,22.8,17.7,10.4,7,3.7
1975,3,4.5,5.3,8,11.5,17.3,24.3,23.8,16.4,12.2,5.3,3
1976,1.8,3.1,4.7,6.6,11.9,19.3,23.2,22.3,17.8,11.2,6.1,4.4
1977,2.8,5.3,7.6,11.4,12.9,17.9,21.9,22.1,17.4,11.8,6,4.8
1978,2.3,6.4,7.2,9.5,12.3,17.5,24,21.9,19.9,11.8,6.3,5.5
1979,4.7,5.1,5.4,9.5,14.2,18.7,23.3,22.6,18.9,10.7,7.4,3.4
1980,2.9,4.5,5.5,9.6,13.8,18.6,24,24.2,18.8,12.1,6.5,1
1981,2.1,3.6,8.7,8.4,13.8,20.1,23.5,21.7,18.4,13.6,8.1,5.1
1982,3.3,4.5,7.2,9.5,14.2,20.4,24.5,22.6,19.5,13.8,6.5,1.4
1983,2.2,3.7,8.9,10.4,13.5,20.2,22.4,22.7,19.3,13.8,8.7,4.3
1984,1.9,4.5,5.5,11.9,10.3,19.5,24.6,22.1,18.5,11.6,6.4,3.6
1985,1.4,5.8,6.3,9.5,12.3,19.7,23.5,24,19,13.3,7.9,3.4
1986,2.1,4.4,6.2,7.8,16.2,18.2,23.9,23.1,18.8,11.7,6.9,2.4
1987,3.7,5.3,8.1,12.6,14.7,19.8,22.3,22.9,20.6,12.1,6.8,5.1
1988,2.3,4.1,6.8,10.5,12.8,17,24.6,24.7,19.6,12.4,6.9,2.1
1989,1.4,2.7,7.1,8.1,14.6,18.6,23.3,22.8,18.2,13,7,5.9
1990,1.4,6,7.7,7.8,14.4,19.4,23.4,22.9,19.2,12.7,7.8,3.5
1991,2,2.4,5.2,9.1,13.3,20.6,23.1,23.7,18.3,10.4,6.6,2.8
1992,2,2.7,4.8,9.3,14.1,16.1,22.9,22.9,18.6,11.1,6.4,3.9
1993,1.6,2,6,9.3,13.1,19.8,24.1,22.9,15.7,11,5.6,3.5
1994,1.9,3.9,6.5,9.8,15.1,20.4,24.8,23.8,17.6,12.3,7.7,4.2
1995,2.6,5.1,6.3,7.5,17.7,18.9,23.6,23.2,16.5,13.1,8.8,5.4
1996,4.4,3.3,5.7,10.6,13.6,18.7,23.5,22,16.7,13.1,7.2,4.6
1997,4.2,6.1,7.5,9.9,14.6,18.9,22.5,21.4,17.9,13.6,8.6,5.1
1998,1.6,5.7,7.5,11,13,20.2,24,24.5,18.3,12.8,7.6,2.8
1999,2.5,2.3,5.8,11.9,16.7,20.5,24.2,23.6,17.6,12.6,5.7,3.4
2000,1.7,5.5,8.1,8.9,14.3,21.1,24.4,24.1,18.2,10.8,7.1,4.9
2001,3.8,4.5,9.6,11.9,14.9,22.1,24,23.4,16.5,14.7,7.3,5.6
2002,4.7,5.8,6.6,9.5,15,20.8,24,22.2,18.2,14.1,8.4,5.9
2003,2.2,4.2,8.1,10.5,16.3,20.7,24.3,23,19.7,12.4,6.8,4.1
2004,2.8,4.1,6.5,9.6,11.9,20.1,24,24.2,19.1,13.9,6.1,3.3
2005,1,1.4,7.8,12.3,17.6,20.7,24.6,24.5,18.5,13.7,7.1,3.7
2006,1,3,8.5,12,16.2,19.8,24.9,23.8,19.1,14.1,8.5,3
2007,3.3,5.7,6.8,9.1,14.8,20.6,25.1,23.4,17.7,12.5,7.9,3.4
2008,3.6,4.6,8.1,11.9,13.4,21.2,24.8,24,17.4,10.7,4.4,2.6
2009,1.4,3.5,7.1,9.9,15.9,19.4,25.2,24.4,16,15.1,9.8,5.9
