1901,1.6,7.8,8.7,9.5,11.2,17.8,21.1,21.5,17.3,13.4,8.3,6.9
1902,3.3,7.3,5.8,8.3,13.1,18.1,20,21,19.6,15.1,6,4
1903,2.9,4.9,6.4,10.8,14.3,16.7,19.6,20.9,17.7,14.3,8,5.8
1904,3,6.7,6.3,9.2,12.6,16.7,19.7,21.6,18.6,15.9,8.6,4.3
1905,1.3,2.8,5.5,10.4,14.2,17.1,21.7,22.7,20.1,15.9,11.2,3.6
1906,4,5,8.2,10,13.3,18.9,20.7,21.7,17.8,13.8,8.8,7.6
1907,2.4,2.8,5.1,8.9,14.3,17.2,21.3,21,17,14.7,6.1,5
1908,2.8,4.5,6.1,8.7,14.3,17.7,19.9,21.4,17.3,13.4,7.3,2.8
1909,2.3,3.5,9.1,8.6,16.4,17.2,22.1,22.3,20,15.1,10.4,7.4
1910,4.1,5.6,4.4,9.6,12.8,17.3,20.9,21.2,17.7,13,10.2,4.6
1911,0.2,-1,4.4,8.8,13.7,16.5,20.7,21.4,16.7,13.6,8.7,4.6
1912,2.2,5.5,6.5,8.6,11.8,17.2,18.9,20.9,17.9,13.3,8.7,4.5
1913,4,3.7,6.5,7.9,12.4,16.9,20.1,21.8,19.3,14.7,9.3,4.9
1914,4.7,5.7,8.9,9.2,14,18,20.9,21.3,19.2,13.7,7,5.2
1915,7.3,5.5,7.6,10.3,13.5,18.6,21.9,21.5,18.6,14.9,9.3,7.5
1916,3.7,5.5,8.5,10.5,15.6,19.7,22.4,21,18.1,13.9,10.4,6.3
1917,5.7,3.6,8.1,11.3,13.1,17.8,20.8,21.9,19.2,14.3,11.2,5.1
1918,4.7,4.7,6.8,9.9,13.4,17.2,20.6,21.1,20.2,17.9,10.6,5.5
1919,6,6.7,8.2,10.6,12.5,16.6,20.9,21,20.5,16.9,11.2,5.7
1920,4.7,1.7,8.2,11.6,16,19.2,22.3,23,19.5,13.2,6.2,2.8
1921,4.5,2.9,5.7,9.7,14.2,17.1,21.5,22.7,17.4,13.4,8.3,3.8
1922,4,4.2,8.9,9.9,14.6,17.4,22.9,22.7,19.1,15,11,5.8
1923,5.5,5.1,8.2,9.9,15.8,19.7,21.4,20.4,21,15.6,12.5,8.6
1924,3.8,5.1,8,11.3,14.4,19.2,21.9,21.7,20.4,14.3,9.5,4.5
1925,2.5,6.5,10.9,9.5,14.7,17.1,21.6,22,20.1,15.2,11.2,7.9
1926,5.8,5.8,7.7,11.8,15.5,19.8,21.6,21.2,17.5,15.3,11.1,7.8
1927,5.6,2,9.6,10.7,16,19.9,22.4,22.9,21.2,17.5,10.3,5.3
1928,4.6,3.6,5.1,13.3,15.6,19,22.5,22.2,19.6,13.7,11.2,6.7
1929,2,3,4.9,9.4,16.3,18.6,22.4,23.1,18.9,14.5,10.6,5.3
1930,4.7,5.8,8.1,11.9,14.9,18.9,22.3,23.3,19.7,13.5,10.1,7.6
1931,5.2,6.4,7.7,10.6,14.6,18.1,22.7,23.3,20.8,15.5,7.9,5.2
1932,2.6,5.2,7.3,10.1,13.5,18.4,21.7,22.4,19.5,17.9,9.8,4
1933,2.6,5.6,6.6,8.4,13.9,17.1,20.9,21.8,18.2,14.3,9.8,3.5
1934,3.4,4.5,8.6,11.5,15.4,18.8,21.4,22.5,17.8,15,10.1,6
1935,4,6.1,7,10.4,15.1,19.3,21.1,22.2,19.5,15,8.2,7.3
1936,6,5.2,7.8,12,13.6,17.1,21.6,23.2,17.6,15.8,10.2,3.9
1937,0.5,6.1,8.4,12,14.6,18.5,22.2,22.4,20.3,15,10.6,6.6
1938,4.2,3.7,4.2,10.8,13.7,18.5,22.6,22.8,18.8,15.1,9.3,7.2
1939,5.7,4.9,7,11.9,16.4,18.1,21.9,22.2,19.7,17.5,9.9,6.6
1940,4.7,6.9,6.4,11.8,13.7,18.7,22,22.7,19.1,15.3,10,7.8
1941,5.4,7.5,7.9,12.1,15.9,19.5,22.1,22.1,18.8,12.4,9.6,3.1
1942,2.6,7,8,11.1,15,19.6,21.5,22.1,19.1,15.2,10.5,5.4
1943,4.9,3.6,4.9,9.2,13.9,17.2,20.6,23.1,20.1,16.7,11.1,5.9
1944,4,5.4,8.2,11.3,13.5,18.4,21.5,21.9,18.9,15.8,10.2,6.8
1945,4.4,4.2,5,9.9,16.1,18.6,21.9,22.2,20.2,14.5,10.2,5.8
1946,4.5,4.9,7.6,11.6,14.3,18.7,21.6,22.6,20.3,13.4,12.2,7
1947,5.9,5.9,9.4,11.3,15.4,19.3,22.7,22.5,18.6,14.9,11.3,7.1
1948,6.7,5.6,5.2,9.8,14.6,18.3,21.5,21.4,18.6,13.5,8.1,4.3
1949,3.2,2.6,6.9,9,15.1,17.9,21,21.4,17,13.9,11.4,7.1
1950,0.7,2.6,7.7,12.6,14.5,17.8,21.2,20.9,19.8,13.2,10.5,7.6
1951,4.7,5.6,8.5,11.4,14.5,17.8,21.2,22.6,19,12.7,9.2,4.3
1952,4.1,5.8,6,10.4,14,17.8,21,22,20.1,15,9.7,7.6
1953,5.2,5.6,4.4,10.3,13.6,18.3,21.7,22.5,18.1,14.3,6.6,-0.1
1954,3.3,6,9.6,10.3,13.9,19.2,22.5,23.3,19.5,14.4,10,6.8
1955,6.1,7.7,7.3,11.3,14.5,19.5,22.2,21.4,19.4,15.8,9.9,6.6
1956,5.1,6.7,6.3,10.2,13.2,18.3,21.7,22.6,19,12.4,8.3,3.5
1957,3.1,6.5,8,11,14.1,18.6,21.7,22.6,19.6,16.3,9.3,5.6
1958,5.4,6.2,9,11.3,14.2,18.3,21.2,21.8,18.6,13.6,9.3,7
1959,6.4,1.2,7,11.7,15.1,17.7,21.1,21.4,17.7,12.8,9.6,7
1960,6.4,5.8,8.1,12,16.1,18.5,21.7,22.5,19.2,14.9,11.1,8
1961,4.2,4.6,6.1,12,15,19.4,21.7,22.8,16.8,13.2,9.6,8.1
1962,5.7,5.2,9.9,10.7,14.9,18.8,22.1,23,19,14.6,11.1,8.3
1963,7.9,8.2,6.1,11.5,14.1,18.5,22.2,21.9,19,15.3,8.4,5.2
1964,-1.7,5.2,8.6,10.1,13.5,18.9,21.6,21.6,17.8,13.1,8.8,6.2
1965,4.1,5.5,8.9,11.4,14.4,19,22.1,21.9,18.9,11.6,7.9,6.7
1966,7.6,8.3,8.2,12.6,14.8,18.7,22,23.6,19.1,15.5,12.7,7.4
1967,4.4,2.4,6.8,10.8,15.1,18.1,21.4,22.7,18.9,15.4,8.6,6.7
1968,3.6,4.9,7.4,12.5,16.7,19.4,22.6,21.4,18.5,15.7,10.9,8.6
1969,6,5.8,10,10.1,16,19.7,21,21.6,18.8,15,7.5,7.5
1970,6.5,7.8,9,12,13.9,18.7,22.5,22.2,18.8,13.3,11.7,4.6
1971,5.5,5.4,7.9,10.7,15.2,18.8,22.3,22.3,19.9,13,9.8,4.4
1972,0.9,2.7,7.6,12.9,14.6,19,22,22.5,20.6,16,8.3,2.5
1973,2.5,6.6,7.3,11.3,15.7,18.5,22.1,22.3,19.8,15.6,7.3,4.9
1974,2.3,5.2,9.5,11,14.3,19.2,21.5,21.2,17.7,16.8,10.1,6.4
1975,4.3,5,7.9,12.9,14.9,18.7,22.4,21.7,19,14.2,8.7,3.8
1976,4.8,2.7,7.3,11.5,14.6,18.3,20.9,21.7,19.1,15.5,10.3,7.5
1977,2.8,8.1,8.1,11.7,15.6,19.6,22.2,22.5,20.4,12.4,9.9,5.9
1978,6.7,7.3,8.3,11.4,15.2,17.9,22,21.4,18.7,15.7,6.3,7.9
1979,5.8,7.8,8.3,11,14.2,19,21.5,22.2,19.6,15.7,11.6,6.1
1980,3.2,4.9,7.8,11.1,14.1,18.6,22.8,22.6,18.8,15.1,10,7.1
1981,6.2,6,9.9,10.6,13.1,17.9,22.1,22.5,19.9,16.2,8.7,9
1982,5.3,3.2,5.6,12.2,14.6,18.3,21.2,22.2,20.2,15.2,7.6,4.5
1983,2.5,4.1,7.2,11.5,14.9,18.1,22.6,21.2,18.5,14,12.4,6.8
1984,6.6,6.7,9.2,11.1,15.1,18.5,21.1,19.1,20.6,13.9,8.8,2.2
1985,7,2.8,6.3,12.1,16.2,19.2,21.3,23,20.3,12.8,9.9,5.8
1986,6,6.8,7.4,11.7,12.8,18.7,22.2,23.2,20,14.2,6.9,4.3
1987,6.8,7,5.2,9.6,14,18.3,22.1,22.1,18.9,13.5,8.2,6.6
1988,3.9,5.3,7.1,10.8,14.7,18.4,21.1,22.3,18.7,14.5,6.2,6
1989,-1.4,1.2,8,13.8,15.2,19.1,22.7,23.2,19.1,12.9,9.5,3.9
1990,1,4.1,7,10.7,14.1,17.5,22.1,21.8,19.1,15.2,11.2,5.7
1991,4.9,3.9,8.9,12.6,12.7,18.3,22.4,22.5,19.6,16.8,10.8,4.6
1992,0.8,1.7,5.2,10.4,14.6,18.4,20.5,22.7,17.3,16.3,7.9,2.4
1993,2.5,3.1,7.6,11.5,14.4,19.3,22.2,23.6,18.5,14.2,5.6,6.1
1994,6.7,5.3,7.4,13.2,15.2,18.4,22.3,23.9,21.5,17.5,10,1.8
1995,5.4,6.3,7.8,9.8,15.5,19.5,20.7,23,19.9,13.2,6.1,4.6
1996,4.9,5.6,7,10.9,16.1,19.7,22.9,23.1,20.3,13.9,10,8.2
1997,3.9,2.3,5,8.1,15.3,18.6,23,21.2,18.6,15.4,9.3,6.5
1998,3.6,4,5.8,12,15,19.4,22.5,24.5,20.8,15.1,12.2,6.8
1999,5.7,5.7,7.7,11.6,15.8,19.2,23,23.6,19.7,16.3,9.3,6.4
2000,2.1,3.8,5.7,12.1,14.5,19.7,23.1,23.2,20.2,14.5,8.7,5.2
2001,5.9,7.6,10.7,12.6,14.9,19.6,22.8,23.6,20.7,15.5,8.3,7.4
2002,2.1,6.1,8.8,11.1,14.6,19.7,22.9,22.4,20.1,15.8,9.3,3.6
2003,6.5,3.5,6,10.9,16.6,19.3,22.6,23,19.6,16.2,8.8,5.6
2004,4.9,4.6,8.3,10.8,14.3,17.9,22.5,22.4,19.4,16.7,10.2,3.9
2005,4.9,5.1,8.4,12,15,18.7,22.9,23.1,19.7,13.1,8,6.4
2006,3.5,5.6,8.3,12.5,15.1,19,22,23.4,20,15.7,7.1,2.9
2007,2.7,5.8,7.8,10.2,16.5,19.7,23,23.8,20.3,16.6,9.9,5.1
2008,1.3,3.7,10.3,13.2,14,19.6,22.8,24,20.8,15.7,10.6,3.9
2009,4.5,6,7,11,14.7,20.1,22.4,22.9,18.7,16.7,8.9,7.8
