1901,2.8,3.6,10.1,13.3,17.7,21.6,22.7,22.6,19.6,14.1,8.8,3.5
1902,3.5,5,9.1,13.8,19.8,22.5,23.4,22.4,19.3,13.7,7,1.9
1903,1.1,3.5,6.7,11.1,17.6,22.6,22,21.7,19.8,14.2,7,3.5
1904,1.7,5.4,8.3,13.5,18.6,23.9,24.1,23.1,19.5,12.7,7.5,4.2
1905,0.5,0.2,4.8,12.2,20,23.1,23.5,23,19.2,13.7,7.9,3.2
1906,0.2,2.7,7.4,12.4,19.7,22,23.9,23.7,19,14.1,8.3,5.4
1907,4.8,3.2,6.5,12.8,17.1,20,22.6,22.2,19.9,13.4,8.4,3
1908,4,4.9,8.8,14.1,18.1,22.2,23.9,21.7,18.1,12,7.4,3.1
1909,0.5,2.8,8.6,13.7,18.6,22.5,22.2,22.8,17.9,12.8,8.9,3.5
1910,1.7,4.2,7.1,12.2,19.5,22.4,22.9,22.1,19.7,13.1,6.8,1
1911,3.2,4.5,6.8,12.8,19.4,23,24.3,23.1,20.3,13.8,5.2,2.5
1912,2.2,5.8,7.8,14.4,19.3,23.1,24,21.8,17.8,13.4,6.9,3
1913,3.3,3.9,5.4,13.4,18.7,21.5,22.6,21.8,18.6,13.1,6.1,2.4
1914,3.9,2.8,7.3,13.2,19.3,23.5,22.6,21.9,19.6,11,7.5,1.8
1915,3,3.2,10.1,14.4,22.1,23.4,23.8,23.3,20.7,13.7,7.5,3
1916,4.2,4.7,11.2,15.3,18,23.3,22.2,22.1,19.2,13.4,4.8,2.8
1917,4.1,7.4,9,11.6,18,22.4,23.4,21.7,18.4,12.1,5.6,4
1918,1.3,4.7,7.9,11,20.9,22.4,24.8,22.7,19.4,12.8,6,1.6
1919,0.8,3.6,8.2,13.1,17.8,22.8,23.7,21.6,18.5,12.4,5.7,2.2
1920,2.4,2.2,7.9,11.7,15.4,21.1,24.2,21.9,19.8,13.6,7.4,2
1921,2.6,2.9,10.8,16.7,19.9,21.7,23.5,21.5,19,11.7,6.8,4.6
1922,3,5.7,10,14,18,21.7,23.8,23.3,18.9,11.9,6.7,3.8
1923,2.2,4,9.2,14.1,17.5,23,21.9,22,18.2,11.4,5.3,2.2
1924,1.5,3.8,9.2,13.4,14.6,21.8,24.1,22.3,17.7,12.8,6.1,3.3
1925,0.9,0.5,9.3,15.7,18.6,21.8,22.7,21.5,18.8,13,5.2,3.2
1926,3.1,5.7,8.1,11.3,16.9,22.8,24.1,22.5,19.3,12.2,4.4,3.3
1927,1.8,3.2,7.8,13,17.7,21.1,23.9,22.9,19.2,14.1,7.2,4.1
1928,1.9,5.3,8.4,14.2,20.6,22.8,23.8,22.7,18.6,13.8,7.1,2.5
1929,0.9,1.9,10.8,15.4,18.9,22.4,22.9,22.1,20,12.2,6.8,0.8
1930,0.2,4.8,9.3,12.2,18.8,21.6,22.1,21.7,18.2,13.3,6.7,3.3
1931,4.5,3.1,9.5,15.5,18.8,21.6,21.9,23.9,19.8,14.5,8.4,4.4
1932,4.3,4.8,9.9,15.3,17.3,23.2,23.8,22.1,20.1,13.7,8,2.7
1933,1,5,8.7,11.5,18.3,22.4,24.4,20.5,18.2,13.2,7.5,5.8
1934,1.4,7.4,8.5,14.3,17.6,23,24.5,21.9,20.1,12.3,6.6,4.4
1935,0.9,4.2,9,10.9,18.7,21,22.8,20.8,18.6,11.7,7.7,3.4
1936,1.1,5,7.2,12.3,21.1,22,23.2,22.3,19.6,13.9,7,3.7
1937,2.7,5,9.7,13.1,19.5,23.4,22.5,23.4,19.5,12.3,5.7,1.6
1938,1,1.3,7.2,14.3,21.7,21.6,23.8,22.8,18.3,13.1,6,3.6
1939,3.1,3.5,5.9,11.7,18.9,22.9,23.9,22.6,20.2,13.9,7.5,4.3
1940,4.1,6.2,8.4,12.6,19.3,22.5,24.4,21.7,18.5,14.3,8.3,4.1
1941,2.9,5.7,11.3,16.4,20.8,23.9,23.5,23.3,18.7,16.1,8.6,5.1
1942,2.2,4,10.8,15,18.9,22.5,22.9,22.1,19.2,13.7,9.5,4
1943,2.8,5.2,10.2,12.7,17.6,21.8,23.1,23.2,20.9,13.5,8.8,5.3
1944,2.2,2.6,8.8,13.7,20.2,22.3,23.8,21.9,17.8,13.2,8,4.5
1945,1.4,3.6,8.9,12.7,18.6,22.8,23.6,22,20.3,13.3,8.3,3
1946,3.4,6.7,8.8,17.3,21.2,23.1,24.1,22.9,19.2,14.4,6.6,1.7
1947,-0.3,3,9.7,15.9,20,22.8,23.6,23.1,19.7,13.3,8.3,2.8
1948,0.5,2.3,7.5,14.7,20.3,20.4,22.6,21.9,19.1,13.6,5.9,3
1949,3,1.9,8.7,15.4,20.5,20.3,23.3,22.3,20,12.4,5.5,2.2
1950,2.4,2.2,7.4,11.1,17.9,22.6,23.2,21.9,17.1,12,6.3,1.4
1951,2,2.7,10.1,11.6,17.6,20.2,22.4,21.7,19.3,15.8,8.8,4.3
1952,2.3,5.7,8,15.7,18.8,22.2,22.8,22.4,19.3,12.7,7.3,3.7
1953,1.6,5.8,12.1,15.2,19.5,22.9,23.6,22.1,18.8,13.1,8,6.4
1954,0.5,3.2,9.1,14.2,19.3,22.5,23.5,23.1,19.9,11,6.5,3.2
1955,1.9,5.7,10.8,12.5,16.6,23.2,23.1,22.1,19.3,12.5,6.3,3.9
1956,1,4.3,9.2,14,21.7,22.5,22.1,21.3,19.7,12.5,5.3,3.4
1957,1.9,2.2,7.8,11.5,16.2,20.4,23.8,21.7,18.3,11.7,6.7,3.4
1958,3.6,5,9.4,15.9,17.9,21.3,24.1,21.3,19.7,13.3,7.4,5
1959,0.9,1.4,8.9,13.8,18.4,22.8,22,22.6,19.7,14.9,6.9,3.1
1960,0.8,6.4,7.8,11.9,18.2,22.3,22.7,22.7,18.9,12.6,7,3.7
1961,2.9,2.1,8.6,12.2,18.3,22.4,23.1,22.1,20.1,12.3,5.1,1.7
1962,1.5,5.4,8.6,14.1,18.1,22.1,23.3,22.3,18.7,12.4,6.6,2.1
1963,0.6,5.6,8.5,12.7,16.5,22.8,23.4,22.3,18.6,13.9,7.8,2.9
1964,0.1,3.7,10.5,14,17.9,20.8,22.1,22.4,20.2,12.5,5.2,3
1965,2.5,3.2,8.2,11.4,16.3,21.8,22.4,20.6,18.5,14.2,9,2.4
1966,2.6,6.8,9.2,12.9,18.2,22.2,22,22.2,17.8,12.4,6.6,2.3
1967,1.5,5.8,8,12.7,16.9,21.9,23.6,21.9,19.7,11.9,7.4,3.3
1968,0.2,1.3,9.3,13.6,16.5,22.5,22.8,21.3,18.9,11.8,6.6,3.3
1969,2.1,4.2,11.2,13.4,17,21.8,23.1,22.5,19.2,14.1,7.8,3.9
1970,3.4,5.9,8.7,15.5,19.7,22.5,23.1,23.3,19.6,13.6,6,3.7
1971,2.2,4.8,10.3,14.7,19.6,22.7,22.9,21.9,18.7,12.9,7.3,3
1972,3.9,2.5,9.8,13.2,18,22.2,22.4,21.7,18.1,11.3,7.8,3.5
1973,2.5,5.8,8.7,15.2,19.8,24.4,23.1,22.5,19.9,12.5,6.4,2.7
1974,2.9,3.8,10.3,15.8,19.2,20.9,22.4,22.2,18.7,12.2,6.4,2.2
1975,1.7,1.9,7.3,13.5,18.7,21.9,21.2,21.4,20,14,5.5,3.1
1976,3.1,3.9,7.8,13.6,18.5,21.4,23.1,20.2,18.2,13.6,7.4,3.4
1977,3,4.3,10.4,14.6,18.1,22.3,22.8,22.2,19.5,15.2,10.2,4.5
1978,1.6,4.4,7.8,14.7,20.9,23.9,21.9,22.7,19.4,14,7.6,4.2
1979,3,5.1,8,16.1,16.9,21.9,23.6,22.1,17.8,13.3,8.6,5.2
1980,3.7,5.3,8.6,15.6,18,21.7,22.9,21.4,17.8,12.9,7.5,3.4
1981,4.1,5.3,9.2,15.1,19.6,21.5,22.8,21.5,18.6,13,7.5,3.7
1982,3.6,2.6,7.1,13.6,17.5,21.8,22.7,21.9,18.2,13.7,8.4,3.5
1983,2.5,4,6.3,11.5,17.6,20.7,21.7,22.2,19.8,12.2,6,3.5
1984,3,3.3,11.2,13.7,20.4,23.9,22,22.4,17.8,12.5,7.4,3.6
1985,3,5.7,11.3,14.4,18.6,22.2,22.5,22.5,19.3,13.1,7.2,4.8
1986,0.8,5.3,8.2,13,17.4,21.7,22.5,21.5,18.9,13.4,7.4,3.2
1987,1.3,5.4,9.7,14.5,16,20.5,22.7,22.6,20,13.6,7.5,4.8
1988,5.2,6.6,8.8,15.7,20.3,21.6,22.7,21.2,19.1,12.9,6.7,4.4
1989,1.9,3.9,8.5,12.6,18,21.8,21.9,20.2,18.2,12.4,7.5,5.1
1990,5.2,5.9,8.2,13.3,20.7,22.8,23.4,21.9,19.7,11.9,7.1,3.2
1991,1.3,3.8,9.2,12.2,17.3,21.8,22.7,22.2,19.2,12.7,6.7,5.8
1992,3.6,4.6,8.8,12.8,17.5,21.5,22.5,22.2,18.8,13.4,6.9,5.4
1993,1.2,7.7,8.5,15,20.5,22,22,22.8,19.7,12.9,8.8,4.8
1994,4.8,4.9,10.4,12.8,18.7,22.8,22.8,22.5,18.5,12.4,8,3.9
1995,2.4,4.7,8.8,12.5,19.1,23.1,22.6,22,18.7,13.7,6.5,3.9
1996,2.5,6.6,11.1,15.3,17.8,21.8,22.8,21.6,20.2,12.7,6.6,1.2
1997,1.8,4.8,9.6,13.3,16.5,20.8,23.1,21.6,19.9,11.5,7.8,3.3
1998,3.8,6.1,8.7,15.7,19.8,22.1,23.8,23,20,14.3,6.5,2.3
1999,3.5,6.4,10.1,16.6,20.1,22.2,24,22.1,21.1,14.5,8.8,4
2000,3,4.4,8.7,16.6,22.7,22.9,22.9,22,19.2,14.8,8.7,4.9
2001,3.3,6.4,10.4,15.2,21.7,22.6,22.9,22.9,18.9,14.3,7.4,5.6
2002,3.6,4.6,10.9,15.8,21.2,22.2,23.9,22.3,17.8,13.6,7.9,5
2003,4.1,6.3,9.7,15.8,17.9,22.9,23.1,22.1,19.8,13,7.7,5.5
2004,4.2,7,13.8,16.1,19.9,21.2,22.7,21.8,19.7,12.4,8.6,5
2005,3.7,4.3,10.2,14.1,16.9,22.4,22.1,22.8,20.2,13.9,7,3.6
2006,3.6,6.3,10,11.2,22.2,21.6,23.3,21.7,18.8,14.5,8,3.8
2007,3.7,6.3,9.4,17.5,19.7,22.2,22.6,22.8,19.2,13.4,6.9,4
2008,2.7,5.2,13.1,14.3,19.7,22.4,22.8,21.8,18.3,14.8,7.7,5.5
2009,5.1,6.4,10.7,14.3,19.6,20.9,22.8,23.1,19.9,13.6,7.1,4.7
