1901,2.7,0.1,3.9,9.1,12.5,15.1,18.8,17.2,15,10.4,5.3,3.6
1902,4.8,1.4,6.7,9,8.9,14.5,16,15.7,14,9.2,6.1,2.9
1903,3.8,6.3,7.7,5.9,12.7,14.2,16.4,15.8,15.2,11.6,6.6,2.1
1904,2.4,3.7,4.3,9.7,12.5,14.6,18.7,16.9,13.1,10.1,5.8,5.1
1905,2.3,4.5,7.3,7.7,11.7,16.5,18.2,16.3,13.7,7.3,5.3,4.2
1906,4.8,3.4,5.2,8.2,12.2,14.7,17.3,17.8,15.1,12.7,8.4,2.2
1907,3,1.9,6.1,8.1,12.5,14.1,15.3,16.3,15.2,11.6,7.3,4.8
1908,0.8,4.7,4.2,7.1,13.4,16.2,17,16,14.4,11.2,5.6,2.6
1909,2.2,1.9,3.8,9.5,11.9,13.5,15,16.6,13.6,11.6,5.1,4.1
1910,4.1,4.9,6.1,8.1,12.1,15.8,15.5,16.6,14.2,11.4,4.9,6.3
1911,2.4,4.5,5.8,7.6,13.7,15.4,19,20,16,10.7,6.6,6.3
1912,3.5,5.4,8.1,9.2,12.8,15.2,18.2,14.6,11.7,9.2,6.3,6.2
1913,4.4,4.4,7.4,8.9,12.6,14.8,15.3,16.3,14.9,11.6,9.4,5
1914,1.3,6.2,7,10.9,11.9,14.6,17.3,17.9,14.8,10.4,6.2,5.9
1915,4.3,4.1,5.2,8.3,12.9,15.9,16.2,16.5,14.3,8.9,3.9,6.4
1916,7,4.1,4.9,9.1,13.1,12.8,15.7,17.1,14,11,6.8,3.8
1917,0.9,-0.3,3.1,5.4,14.2,17.4,17.2,16.5,15.4,9,8.1,1.5
1918,3.1,4.9,5.8,7.9,14,14.2,16.9,17.2,14,9.8,5.7,7
1919,2.9,1.9,5.1,7.1,14,15.2,14.4,17.3,15.1,8.1,3.5,5.2
1920,5,6.2,8.1,9.5,13.5,15.6,16.5,15.4,14.2,10.2,4.6,3.3
1921,6.8,4.4,7.5,9.2,13.3,15.8,19.2,17.5,15.7,13.8,3.5,4.8
1922,2.8,3.4,5.7,7.2,13.7,15.4,15.6,15.8,13.4,8,5.7,5.4
1923,5.1,4.7,7.2,8.5,11.1,12.1,18.9,17.2,14.3,11.5,4.6,3
1924,2.8,2.2,4.8,7.6,13.3,15,16.9,15.1,14.6,11.4,6.7,4.8
1925,5,5.5,4.6,8.5,13.2,15.7,18,16.9,12.7,11.2,4.4,3.2
1926,3.6,7,6.9,9.8,11.4,14.1,17.9,17.4,16.1,10,7.3,3.6
1927,4.8,4.3,7.7,9.1,12.4,14,17.2,17.2,14.6,11.2,5.7,0.9
1928,4.8,6.2,6.2,9.3,11.6,14.6,18.1,17.4,14.6,11,8.7,4.1
1929,0.3,-2.3,5.2,6.5,12.7,14.7,18,17.3,17.5,11.3,7.1,6.3
1930,6,2.8,6.2,9.5,12,17.3,16.8,17.5,15,11.6,8.1,4
1931,4.2,3.4,4,8,12.9,15.7,16.7,16.1,12.7,10.3,7.5,4.8
1932,5.4,2.8,4.6,7.8,11.6,15.1,17.5,19,15.4,10.2,6.4,4.4
1933,1.5,3.9,7.6,9,12.3,15.5,18.3,18.4,15.6,11.1,5.2,-0.6
1934,3.3,3.6,5.8,9.7,12,15.9,18.4,17.2,16.4,11.8,6.6,7.7
1935,4.3,5.4,5.9,8.6,11.2,16.2,18.4,17.8,15.1,10.4,7.6,3.7
1936,5.5,3.1,7.1,7.1,12.5,16.1,16.7,17.3,15.2,9.8,6,4.3
1937,4.4,6.2,4.8,9.2,13.6,15.7,17.3,17.7,14.6,11.6,5.9,3
1938,5.4,4.3,8.4,7.7,11.3,15.5,16.5,17.9,15.6,10.9,9.1,2.3
1939,4.9,4.7,5.9,9.5,11.7,15.9,16.9,17.8,15.7,8.9,8.5,2.6
1940,-2.5,0.8,6,9.1,13.1,16.7,16.5,16.3,14.1,9.8,7.5,2.3
1941,-0.8,3,5.8,7.4,9.9,16.2,18.8,15.8,14.9,10.9,5.5,5.7
1942,-1.5,-1.7,4.1,9.6,12,15.3,16.7,18.1,15.6,12.4,6.6,5.3
1943,4.3,5.8,7.4,11.1,13.5,15.2,17.5,17.4,14.6,11.8,5.9,2.4
1944,5.7,2.8,4.7,9.9,12,14.4,17.2,18.8,13.9,9.6,6.7,3.5
1945,-1.4,6.8,8.2,10.6,13.8,16.7,18.9,17.1,15.7,12.7,6.2,4.8
1946,1.5,5.9,5.1,10.4,12.6,14.1,17.4,16.3,15,10.5,7.5,1.4
1947,0.3,-2.9,4.2,9.4,14.5,16.9,18.6,20.5,17.7,11.4,8.1,4.2
1948,5.9,4.2,8.3,10.2,13.4,15.5,17,16.9,15.2,10.9,6.6,4.8
1949,4.9,5.2,5.3,11.2,12,15.4,19,18.4,18.2,13,6.5,5.6
1950,2.8,6.3,7.6,8.4,13.3,17.7,18.4,17.9,14.3,10.6,7,1.3
1951,4.6,4.5,5.2,7.8,11.4,14.7,16.9,16.3,15.4,9.4,8.8,5.2
1952,3.4,3.2,6.5,10.6,13.9,15.7,17.7,17.3,12,9.1,4,2.7
1953,1.9,3.5,6,9.1,13.3,14.8,16.8,17.2,14.5,11.4,7.4,6.6
1954,1.6,1.2,6.7,7.4,12.7,14.6,15,15.8,14,12.2,7.7,6.4
1955,2.1,1.7,3.2,8.7,10.8,14.8,17.4,18.2,15.1,10.1,7.2,5.8
1956,3.7,-2.1,6.1,6.6,12.6,13.1,16.5,14.8,15.2,10.2,5.6,6
1957,4.5,6.2,9.4,9,11.1,16.6,17.8,16.2,13.5,11,6.6,3.8
1958,3.6,5.4,4,7.3,12.6,14.8,17.1,17.1,16.4,11.4,6.4,5.5
1959,3.2,2.6,7.7,10.1,13.5,16.1,19,18.5,16.6,12.8,6.7,5.6
1960,4.1,4.5,6.7,9.2,13.6,16.4,16.1,16.5,14.3,11.2,8.2,4.1
1961,3.5,7,8.1,11.2,12.1,15.6,16.7,16.8,16.9,12.1,6.2,3
1962,4.3,4.1,3.2,8.1,10.4,14,15.7,16,14,11.3,5.6,1.3
1963,-3.4,-1.7,5.1,8.6,11.1,15.5,16.5,15.7,14.3,10.6,8.8,0.8
1964,1.9,4.5,4.1,8.5,14,15.5,17.5,17,15.4,9.1,7,3.4
1965,3.6,3.2,5.5,8.3,12.2,14.8,15.4,16.1,13.7,11.1,4.5,5.4
1966,1.6,5.8,6.7,8.9,12.2,16.5,16,16.1,14.8,11.9,5.6,5.4
1967,4.1,5.9,7.7,8.2,12.3,14.6,18.4,17.1,14.8,12.1,5.9,4.3
1968,3.6,2.8,6.7,9,11.2,15.4,16.3,17.1,15.1,12.8,5.8,1.7
1969,5.2,2,4.2,8.2,12.7,15.1,18,17.6,15.4,13.5,7.1,1.2
1970,3,3.4,4.4,7,13,17.4,16.4,17.3,15.5,11.6,8.4,3.8
1971,3.6,5,4.7,8.4,13.2,14.2,18.2,17.4,14.8,11.7,6.4,5.8
1972,2.8,4.4,7.2,8.8,11.7,13.3,17,16.2,13.1,10.3,7.1,5
1973,4,4.3,6.5,7.6,12.4,16.1,17.1,18.3,15.6,10.4,6.8,4.6
1974,6.2,5.9,6.5,9.8,11.9,14.9,16,16.8,13.5,8.1,7.1,7.5
1975,7,4.7,5.3,7.8,11,15.1,18,19.5,15.5,9.8,6.1,4.2
1976,5.1,3.6,4.7,8.2,13.5,18.2,20,18.6,14.7,11.9,7.1,2.4
1977,3.4,5.6,7.6,7.6,12,14,17.1,16.3,14.3,12.4,7.5,5.7
1978,3.8,2.4,6.9,7.6,12.2,14.9,15.9,16,14.6,12,7.4,3.5
1979,-0.6,0.8,5.4,8.3,11.4,14.7,16.9,16.1,14.6,12.1,7,6.3
1980,1.9,5.9,6.1,8.7,12.2,15,15.9,17.4,15.9,10.3,5.6,4.5
1981,4.3,3,8.6,8.8,12.8,14.3,16.7,17.2,15.4,9.7,7.8,1.7
1982,2.3,4.2,6.2,8.5,12.9,16.8,18.6,17.5,16.3,11.1,8.6,4.4
1983,6.5,1.9,6.4,8.5,11.1,15.9,20.1,18.5,14.8,11.4,7.4,4.9
1984,4.8,3.6,5.3,8.6,10.5,14.5,16.9,18.2,14.4,11.7,9.4,5.3
1985,-1,0.6,4.3,8.9,12.4,14.3,17.8,16.2,15.4,11.4,4,5.9
1986,3.5,-1.8,4.5,6.5,12.5,16.5,17.6,16,12.5,12.2,8.2,6
1987,-0.9,3.1,3.8,10.6,10.8,14.2,17.4,17,15.6,11.5,7.1,4.8
1988,6.5,5.5,6.7,9.2,13.8,14.9,16.3,17,14.7,11.8,6.7,7.4
1989,5.3,6,8.8,7.9,14.8,16,19.1,18.2,16.4,12.8,7,5.7
1990,6,8.3,9.1,9.3,14.4,15.1,17.7,19.6,14.4,12.6,7.4,4.7
1991,4,0.9,9.2,8.7,10.5,13.1,18.7,18.8,16.2,11,6.6,4.3
1992,3.5,5.4,7.4,9.1,14.9,16.4,18.1,17.9,14.6,8.4,8.3,4.5
1993,6.1,3.4,6.7,11.1,13.8,16.2,16.7,15.7,13.6,9.7,4.2,5.7
1994,5.4,3.4,7.8,8.9,12.1,15.8,20.8,17.8,14.1,10.4,10.8,6.4
1995,4.9,7.3,6.1,9.4,13.1,14.9,20.3,20.4,14.6,13.8,7.8,1.7
1996,3.1,2.1,4.4,9.8,10.6,15.8,17.3,17.5,13.8,11.6,6.2,2.2
1997,1,6.8,8.7,8.8,12.8,15.9,17.6,20.9,15.3,10.9,8.2,6
1998,5.5,6.8,8.2,9.2,14.9,15.8,16.5,17.4,15.5,10.5,4.9,5.4
1999,6,4.3,8.1,10.1,14.4,15.1,19.3,18,17.6,11.2,7.2,5
2000,5,6.7,8,9.8,14.4,16.3,16.2,18.3,16.5,11.9,8.1,6.3
2001,4,5.6,6.4,8.3,14.2,15.8,18.8,18.8,14.3,14.3,8.1,4.1
2002,5.3,8,8.5,10.2,13.1,16.4,17.6,18.8,15.7,11.2,9.2,4.6
2003,3.7,3.7,8.3,10.5,13.7,18.3,19.4,19.9,16,9.3,8.4,5.3
2004,5,5.8,7,10.8,12.8,16.6,17.6,19.3,16.4,11.9,7.7,4.6
2005,6.1,3.9,6.9,10.4,12.6,17.1,18.2,17.2,16.7,14,7.7,4.7
2006,3.2,3.7,5.2,9.3,13.6,16.6,21.6,17.6,18.3,14.3,9.7,6.8
2007,7.7,7.2,8.9,12.3,14.3,17,17.2,17.6,15,11.2,7.9,4.8
2008,6.9,6.2,7.2,9.5,15.4,16,18.2,17.8,14.5,10.9,7.5,3.4
2009,1.9,4.1,7.3,11.5,14.2,16.2,18.3,19,16.1,12,9.7,3.6
