1901,2.7,7.1,11.1,16.6,21,27.1,29.2,28.6,23,13.7,10.1,7.7
1902,5.2,6.1,8.9,14.8,19.6,27.6,28.2,28.7,22.1,15.7,9.1,5.1
1903,3.1,5.5,6.7,14.9,21.4,26.8,29.2,28.4,21.8,17.8,10.3,5.5
1904,0.7,6.3,9.7,13.1,19.4,25,28.1,28,23.6,16.9,12,4.2
1905,2.6,3.4,7.4,14,18.6,27.3,28.1,27.1,24.1,21.1,13,5.7
1906,3.5,5.7,9.6,14.6,21.9,26.7,28.3,26.9,22.2,17.8,11.2,7.7
1907,3.4,4,7.7,14.6,20.2,26.3,29.5,27.2,22,15,7.9,4.8
1908,2.7,6,7.5,12.9,18.4,26,28.1,28.4,24.7,15.3,9.9,4.3
1909,1.8,5.6,9.5,13.4,20.4,25.4,27.5,27.3,25.7,18.4,14.2,6.8
1910,5.7,7,8.6,15.6,21.3,27.1,29.9,28.5,23.4,17,12.2,3.4
1911,0.6,2.3,6,12.6,20,25.5,28.8,27.9,22.4,14.1,11.1,5
1912,4.5,6.7,9.8,13.3,18.4,27.9,28.3,27.9,25.6,17.6,12,5.3
1913,4.1,3.2,7.6,13.9,20.2,24.5,29.8,29.6,25.4,16.3,11.9,7
1914,6.8,7.6,12.7,15.2,19.7,26.7,29.5,27.7,22.8,17.6,8.4,4.8
1915,7.3,6,10.4,14.5,19.9,26,29,28.5,23.8,16.6,12.8,7.7
1916,4.5,5.6,9.1,15.4,22.2,25.5,28.8,28.5,23.1,16.6,11.2,7
1917,5.4,5.2,10,17.7,19.4,26,29.3,28.2,24.8,16.7,13,6.2
1918,3.7,5.2,7.6,13.4,18.1,25.1,28.3,27.9,25.4,19.6,10.7,4
1919,6,5.6,7.5,15.3,17.5,23.6,26.9,27,23.7,19.7,11.6,5.5
1920,5.3,1.5,9.1,13.9,19.7,26,27.5,28.5,23.7,14.5,7.7,1.4
1921,4.3,3.5,7.1,14.7,21.8,28,29.5,27.4,22.7,15.4,9.9,5
1922,4.9,5.2,9.3,15.1,20.7,26.4,29.1,28.5,22.9,18.1,12.7,6.7
1923,5.7,5.6,9.3,12.8,21,28,29.6,26.4,23.3,18.3,12.1,7.2
1924,6.5,5.6,8.4,13.9,19.8,27.6,28.1,28.8,25.6,16.7,10.8,2.1
1925,-0.2,4.1,11.4,14.6,21.5,26.9,28.9,29.1,24.8,16.4,11.5,8
1926,4.8,5.1,8.3,13.8,21,25.5,27.4,28.6,22,16.6,11.2,7.4
1927,2.6,3.6,9,14.8,20,27.1,29,29.1,24.5,20.1,11.1,3.4
1928,2.3,3.2,4.4,14.8,19.5,25.9,27.7,25.7,24.2,15.8,12.8,6
1929,2.3,1.6,5.2,12.8,21.8,25.3,28.3,28.9,24.4,18.2,12,4.5
1930,3.9,4.2,9.7,14.5,20.4,24.9,29.2,29.6,23.4,17.2,12.9,4.9
1931,2.6,3.3,9.2,12.8,19.3,25.9,30.7,28.3,25.7,17,9.2,2.1
1932,2.6,4,6.8,15.6,20.6,27,27.7,28.1,23.9,19.1,9.8,3.1
1933,2.4,5.5,7.4,14.2,20.3,25.2,28.8,28.9,24.8,18,11.9,3.1
1934,2.1,6,9.2,13.1,18.8,25.6,29.2,28.1,23.1,17.6,11.4,5.3
1935,0.6,7,8.3,16.9,20.3,24.5,28.4,29.9,26.5,19.3,10,7.7
1936,5.7,6.3,8.6,14.7,19.2,26.4,29.7,28.1,23,17.7,12.9,5.1
1937,1.5,4,8.7,14.4,19.7,24.5,29.5,29.7,26.1,19,13.2,8
1938,6.3,7.1,8.4,15.5,20.6,26,29.1,28.6,25.3,17.7,12.4,6.4
1939,5.6,6.4,8,14,21.7,28.5,29.3,28.1,22.8,16.6,11.2,7.3
1940,3.4,5.6,7.5,15.9,18.7,26.9,29.6,29.6,24.9,17.5,13.1,8.1
1941,4.3,7.2,9.6,15.5,21.7,27.3,29.2,27.7,24.5,15.9,9,4.1
1942,2.5,4.8,7.1,13.1,20.8,27.1,28.6,28.5,23.8,18.6,11.7,6.1
1943,3.8,3.6,5.8,14.4,20.6,25.8,28.7,28.4,23.1,18,11.8,6.9
1944,5.2,8.2,12.2,15.5,20.7,26.8,29,26.6,23.6,18.3,12.8,3.1
1945,4.4,4,8.1,14.2,18.5,24.9,28.2,28.7,24.2,17.2,9.8,3.7
1946,3.3,7.1,9.4,14.5,20.8,26.3,28,28.1,25.2,15.8,11.3,2.4
1947,4.6,5.3,10,15,19.1,25.8,28.5,27.5,23,17,12.6,8.5
1948,7.6,7.5,7.7,13.6,21,28.3,29.3,28.7,23.2,16.3,10.2,1.8
1949,2.4,2.4,6.7,13.3,19.4,27.9,29.8,28.3,23.3,14.3,11.7,6.2
1950,-0.6,1.1,8.4,16,21.8,25.6,28.4,27.4,24.6,18.6,10.7,6.8
1951,5.4,2.9,9.9,16.5,21.1,25.7,29.1,28.8,23.6,13.9,10.6,5.7
1952,5.5,7.5,8.5,13,18.8,24.6,28.5,29.2,24.7,20.1,10.9,6.6
1953,6.9,8,8.2,14.6,19.7,26.9,28.3,29.1,22.7,16.8,7.6,1.8
1954,2.8,1.8,6.4,12.2,20.5,26.8,30.3,29.8,24.8,19.6,12.3,6.8
1955,6.3,9,8.8,14,20.3,25.5,28.5,28,23.9,19.2,12,6.5
1956,6.5,4.3,6,14.5,17.9,25.2,27.4,28.2,21.7,16.5,10.2,3.8
1957,1.5,6.3,7.8,14.9,21.3,25.3,27.8,28.3,26.6,16.9,10.5,6.6
1958,6.8,8.5,10.6,14.1,21.4,25.7,27,27.2,22.4,16.3,8.9,5.4
1959,6.3,2.9,7.1,15.7,20.5,24.5,28.3,27.8,22.2,14.4,9.3,3.7
1960,6.9,6.6,6.1,14,19.3,26.1,28,27.9,23.3,18.6,12.1,7.2
1961,5.7,6.5,9.7,15.3,22.3,26.7,28.1,27.8,21.8,16,12.5,8.4
1962,5.6,8.2,11.8,15.2,20.4,25.2,29.5,27.8,23.6,17,12,7.8
1963,6.9,8.2,8.4,15.2,19.9,25.1,28.1,26.9,24.1,17.5,10.8,4.6
1964,0.7,5.1,8.7,13.8,20.3,27.1,27.7,26.4,22.8,15.8,10.9,4.2
1965,2.9,5.2,8.6,12.8,19.6,26.3,28,27.4,23,14.7,10.5,7
1966,8,8,10.9,17,19.3,26,28.6,29.2,22.9,17.3,13.3,8.4
1967,6.6,3.1,8.2,14.2,20.5,24.4,27.3,28.2,22.4,17.8,12.6,5.3
1968,5.8,5.7,8.9,14.1,21.9,24.2,26.9,27.1,24.1,18.1,12.4,6.1
1969,0.5,-0.3,6.1,13,18.9,25.8,26.4,26.9,22.6,15.7,10.3,7.8
1970,5.5,7.6,9.9,15.7,21.1,25.2,28.5,27.4,22.9,16.1,12.1,4.8
1971,2.9,5.7,9.9,13.7,20.7,25.3,29.2,28,25.8,16.9,12.6,6.1
1972,-0.7,-0.3,6,16.1,19.8,27.1,29.2,28.1,24.5,19.4,11.6,3.2
1973,0.2,6.7,9,15.6,20,25.1,27.7,27.7,21.4,17.6,9.8,4.5
1974,2.3,3.4,8.6,13.5,20.5,26.3,26.9,26.5,23,18.5,13.2,6
1975,5.5,5.1,8.8,16.3,21.6,27.7,29.9,27.6,24.3,16.5,8.9,4.4
1976,4.7,1.6,6.4,16.1,19.5,25.6,27.5,29.1,23.9,14.5,10.2,6.1
1977,-0.9,6.5,10,15.5,20.5,27.1,28.5,27.6,23.6,13.5,12,3.9
1978,5.2,5.6,9.8,14.7,18.2,23.7,28.1,27,25.5,17.7,8.1,6.9
1979,4.8,6,10,15,20,24.9,28.7,28.5,25.1,17.7,12,6.8
1980,2.5,4.1,7.9,15,19.7,26,29.8,27.4,23,15.8,13.2,8.3
1981,7.2,7.5,9.2,13.9,18.1,26.1,29.2,27.3,24.4,18.8,11.7,8.7
1982,4.7,3.3,7.6,16.2,19.6,25.5,28.4,27.1,24.1,16.7,9,3.4
1983,3.9,7.4,7.8,16.5,21.7,25.7,29.4,28,22.9,16.8,9,6.3
1984,6.2,2.2,8.5,16.2,19.1,26.2,27.5,28,24.6,17.1,11.2,2.5
1985,4,4.6,5.7,15.5,22.2,27.4,27.7,28.3,24.6,16.1,11.8,6.3
1986,6,4.7,7.1,16,19.2,26.3,28.9,29.1,24.9,17.1,10,5.1
1987,5.7,6.2,8,12.8,20.4,25.6,28.4,28,22.7,13.7,10.2,5
1988,4.6,4.6,9.6,16,19.4,27.6,29.4,27.4,23.5,17.6,10.1,6.2
1989,3.3,4.7,11.1,16,20.3,26.6,29.9,29.5,24.2,17.3,11.9,6.1
1990,2.6,6,9.1,15.8,18.5,25.6,28.4,26.8,24.6,17,12.8,5.8
1991,4.4,4.3,8.2,15.4,19,25.6,28.4,28.2,23.6,18.4,11,5.3
1992,3.4,5,7.9,14,17.3,25.2,27.1,26.3,23.1,16.6,13.2,5.5
1993,3.4,3.2,8.5,14.2,19.4,24.5,26.9,27.5,23.1,15.7,6.8,3.7
1994,4.9,2.6,8.3,15.8,19.6,24.2,27,27.2,23.8,17.5,11.2,3.8
1995,5.2,6.9,9.6,16.6,21.4,26.4,28.7,28.4,24.9,16.3,13,5
1996,3.7,5.6,7.6,13,21.5,24.9,29.1,28.5,24.6,17.2,11.3,8.8
1997,5.6,4.8,8,15.6,20.7,26.6,28,28.9,21.5,19.1,11.1,5.7
1998,3.6,4.4,9.1,17.2,21.1,28.8,29.1,29.4,24,17.7,12.3,7.4
1999,6.2,9.2,10.3,15.5,18.4,25.8,28.5,30.5,23.9,18,9.8,7.8
2000,5.3,6.5,8.8,18.2,19.7,25.6,29.9,29.7,24.6,15.8,10.3,6.8
2001,6,8.5,12.7,17.2,21.1,27.7,28.9,29.4,25.1,17,12.3,7.4
2002,5.5,7.3,11.9,14.4,18.6,26.2,29.9,28.4,26.2,19.5,11.8,1.7
2003,5.6,5.8,7.4,12.4,19.7,24.5,28,29.2,23.7,19.4,11.3,7.4
2004,7.4,8.4,10.6,13.8,20.2,26.6,27.2,29.1,24.1,17.7,12.3,4.2
2005,5.5,4.4,10,15.5,20.6,25.6,29.6,29.4,25.3,18.5,11,10.5
2006,2.8,5.6,10.3,15.3,20.6,28.3,29.2,30.4,24.6,19.3,10,3.5
2007,11.3,6.5,9.5,14.2,20.3,27.3,27.9,30,26.1,19,11.3,5.3
2008,-0.9,4.5,14.1,18,20.4,25.9,29.1,29.8,24.6,17.7,13.2,4.6
2009,5.1,8.8,10.8,12.7,20.8,26.7,29.6,26.9,23,18.6,11.8,7.6
