1901,3.3,1.9,3.5,7.3,9.8,12.5,16.1,14.8,13,8.6,5.4,2.8
1902,3.5,1.1,5.6,6.7,7.1,10.7,12.7,12.4,11.7,8.1,6.9,3.9
1903,3.2,5.8,5.6,4.8,8.7,11.5,13.6,13,11.7,8.8,5.5,2.8
1904,4,2.4,3.6,7.5,8.8,11.5,14.2,14,11.7,8.8,5.2,4.1
1905,4,4,5.7,5.6,9.4,12.5,15.4,13.5,11.5,6.7,4.7,5.5
1906,4.4,2.7,4.1,6.7,8.3,12.8,13.8,14.5,12.9,9.3,7.2,3
1907,3.7,2.7,6.1,6.8,8.1,11.1,12.7,12.7,12.3,8.8,6,4.1
1908,3,4.7,3.6,5.2,10.3,12.5,14.3,13.4,12.1,11.5,6.6,3.7
1909,3.8,3.4,2.2,7.4,9.3,10.9,13.4,14.1,10.7,8.9,4.3,2.6
1910,2.8,3.8,5.8,6,8.7,12.3,13,14,11.9,9.7,2.7,5.4
1911,4.4,4.2,4,6.7,10.6,12.9,15.5,15.7,12.5,7.7,5.1,5.3
1912,3,4,6.4,8.1,9.9,11.8,14,11.8,10.3,8.1,5.6,5.4
1913,3.2,4.4,4.8,6.8,9.4,12.5,13.6,14.3,12.2,9.8,7.4,4.5
1914,3.5,5.9,4.8,9.2,9.5,12.9,14.6,14.8,12.5,9.6,6.3,3.9
1915,3.5,3.3,4.6,7,8,12.4,13.8,14,12.2,8.1,2.9,3.6
1916,6.6,3,2.3,7,9.2,10.5,13.8,14.2,11.9,8.7,6.8,3.3
1917,2,1.9,2.7,4.4,9.2,13,14.8,14.3,12.9,6.6,7.3,2.9
1918,2.6,5.7,5.1,5.6,10.9,12.2,14.2,14.4,10,8.7,5.2,5.5
1919,3.1,1.5,2.3,6.6,10.6,12.6,13,14.1,11.9,7.8,2.4,3.8
1920,3.9,5.5,6,6.2,9.8,12.4,13.2,12.8,12.2,9,7.1,3.9
1921,5.8,4.9,6,7.3,10.3,12.9,15.6,13.1,12.8,11.4,4.5,5.8
1922,2.7,3.4,4.1,4.8,10.3,12,12.6,12.4,11,7.6,6.2,5.2
1923,5.7,3.8,5.6,5.7,7.4,11.3,15.2,13.4,11.3,8.5,3.3,3.2
1924,3.9,3.4,3.3,6,8.6,12.1,14,13.3,11.5,8.7,6.6,6.7
1925,4.9,3.8,4.5,6.1,9.6,13.2,15.3,14.3,10.6,9.2,3.8,2.2
1926,4.5,5.1,5.5,8,8.4,12.2,15.3,15,12.9,6.6,5.3,4.7
1927,4.3,4.4,6.4,6.6,8.3,10.4,14.6,14.6,11.2,9.3,5.4,1.6
1928,4.5,4.5,4.4,6.9,8.5,10.6,14.1,14,11.9,8.8,7,3.6
1929,2.1,0.6,6.2,5.3,9.6,11.8,14.6,13.7,13.3,8.4,6,4.8
1930,4.3,1.9,4.6,6.8,8.8,13.6,14.3,14.5,12.4,9,5.1,3.6
1931,2.5,2.6,2.4,6.2,9.4,11.5,14.1,12.8,10.4,7.9,7.2,5.2
1932,5.5,3.7,4.1,5.2,8.8,12.2,14.5,14.8,11.3,7,5.4,5.3
1933,1.8,3.1,6,7.6,10,13.6,16.4,15.5,13.3,9,5.3,2.8
1934,4.2,5,3.8,6.1,9.5,12.7,16,14,12.8,8.8,5.2,7
1935,4.2,4,6,6.2,8.2,12.5,14.8,14.8,11.6,7.7,5.6,1.9
1936,2.4,1.8,5.2,5.3,9.5,12.9,14.4,14.7,13.1,8.2,4.7,4.4
1937,4.3,3.2,1.8,7.5,10.2,12.5,14.4,14.7,11.8,9.2,5.2,2
1938,4.8,4.3,8.1,6.9,8.6,12.2,13.4,14.3,12.6,9.1,7.4,3.6
1939,2.8,4.8,5,6.9,9.9,13,14,15,12.6,7.3,6.7,3.3
1940,-0.8,1.8,4.2,6.4,10.7,14,13.4,13.7,10.9,8.7,5.9,3.5
1941,-0.2,1.7,3.2,5.1,7.9,12.5,14.8,13.2,13.4,8.8,5.8,4.9
1942,0.8,-0.2,3.3,7.1,9.1,11.8,13.8,14.6,11.9,8.8,5,5.6
1943,3.5,5.7,6,8.7,9.5,12.4,14,13.4,11.6,9.5,5.4,3.8
1944,4.9,3,4.5,8.4,9.1,11.7,14.4,14.8,10.8,7.9,4.6,3.6
1945,0.1,5.6,6.9,7.7,9.6,12.5,15.1,14.3,12.8,10.4,7.2,4.6
1946,2.3,4.2,4.4,8.2,9.1,11.4,14.4,13.1,12.4,8.4,6.9,2.8
1947,2.3,-1.3,1.2,6.5,10.3,13.1,15.2,16.8,12.6,9.8,5.6,4.7
1948,3.1,4,7,7.4,9.2,11.9,14.2,13,12.1,8.5,6.6,4.6
1949,4.5,4.8,4.4,8.4,9.3,12.6,14.6,14.8,14.3,10.1,5.9,4.6
1950,3.8,3,6.3,5.5,9.6,13.7,14.3,14,11.2,8.6,4.4,0.8
1951,2.4,2.5,2.8,5,7.8,11.5,14.7,13.5,12.4,9.3,7.4,4.4
1952,1,3,5.4,8,11.1,12,14.6,14.4,9.8,7.8,3.4,2.4
1953,4.1,4.3,5.5,5.7,10.8,12.7,13.9,14.2,13,9.2,7.4,5.9
1954,3,1.5,4.4,6.6,9.8,11.8,12.9,13.1,10.7,9.8,5.8,5.3
1955,1.6,-0.5,2.6,8.3,7.9,11.6,15.8,15.9,13.1,8,7.1,3.8
1956,2,0.4,5.1,5.3,10.4,11.5,14,11.7,12.7,8.7,6.1,5.5
1957,4.6,3.3,7.6,7.4,8.9,12.9,14.5,13.9,10.9,9.3,6.3,4.1
1958,2.1,2.6,1.9,6.4,8.7,11.9,14.4,14.4,13.8,9.8,5.7,3.6
1959,0.6,3.9,6.2,7.7,10.7,13.2,15.2,15.9,13.2,11.3,6.6,4.9
1960,3.2,2.3,5.1,8.1,11.1,14.2,13.7,13.5,11.9,9.5,6,2.9
1961,2.5,5.5,7.7,8,9.2,12.6,13.2,13.5,13.4,9.5,5.1,1.4
1962,3.4,4,1.8,6.2,8.7,12.1,12.5,12.8,11.5,9.5,4.6,2.1
1963,-0.8,-1,4.9,7,8.6,12.8,13.3,12.8,11.6,9.5,6.3,3.1
1964,3.8,4,3.7,7.8,11,12.2,14.3,13.8,12.2,8.2,6.2,2.6
1965,2.3,3.6,3.8,6.7,9.4,12.7,11.7,13.1,11.6,9.9,3.6,2.7
1966,2.6,3.1,5.8,5.1,9.3,13.7,13.4,12.9,13.1,8.6,4.8,3.6
1967,3.9,4.7,6,6.9,8.3,12.5,14.6,14.3,12.5,9,5.2,3.9
1968,3.2,0.9,5.5,6.6,7.6,12.9,13,13.6,12.3,10.7,5.9,3.4
1969,4.7,-0.1,2.2,5.9,8.9,12.4,15.2,15.1,12.4,11.8,3.4,3
1970,2.9,1.4,3.2,5.2,10.5,13.7,13.2,14.7,12.8,9.2,6.1,4
1971,4.1,4.5,4.6,6.5,9.6,10.5,14.5,13.8,13.1,10.1,5.4,6.5
1972,3.5,3.6,5.3,7.4,9.1,10.8,13.9,13.2,10.4,9.7,5,4.7
1973,3.9,3.4,5.8,5.5,9.3,13.5,14.2,14.3,12.3,8.2,4.6,3.8
1974,5.1,4.7,4.5,6.5,9.5,11.8,13.3,13.8,10.6,7,5.7,6.5
1975,5.2,3.8,4,7,8.1,12.6,15.3,16.9,11.6,9.3,5.6,5.3
1976,4.6,4.5,4,7.4,9.9,14.3,16.3,15.4,12,9.4,5.2,1.3
1977,2,2.9,5.5,6.1,8.7,11.1,14.3,13.7,11.6,10.6,5,5.3
1978,2.1,0.8,5.6,5.3,10.1,12.1,13,13.7,12.5,10.7,7.4,3.4
1979,-0.3,0.8,3.2,6.3,8.1,12.7,14.1,13.2,11.8,10.1,5.5,4.4
1980,2.1,4.2,3.4,7.6,9.1,12.4,13.1,14.2,13.1,7.7,5.9,4.9
1981,3.4,2.85,5.85,6.55,10.1,12.05,14.15,14.95,13.15,6.3,6.5,0
1982,1.4,4.3,5.3,7.7,9.6,12.8,15.1,14.5,12.3,9.1,6.2,3.2
1983,5.4,1.5,5.9,5.3,8.5,12.1,16.8,15.9,12,9,6.6,5.5
1984,1.5,3.2,4.1,7,8.8,12.9,15.4,15.5,11.6,9.4,7.2,5
1985,1.2,2.5,3.8,7,9.2,10.9,14.3,13.3,12.3,9.7,2.8,4.7
1986,2.4,-0.8,4.2,4.8,9.8,12.8,14.2,12,10.9,9.3,6.7,4.5
1987,1,3,3.4,8.5,8.6,10.7,14.4,14.1,11.8,7.9,5.6,5
1988,3.9,4,4.8,6.9,9.9,13.2,13.8,14.1,12.1,9.2,5.3,6.8
1989,6.4,4.9,5.8,5.4,10.6,12.6,16,14.6,12.4,10.1,6.1,3.4
1990,5.4,5.7,7.5,7.1,10.6,12.1,14.7,16,11.6,10.1,6,4
1991,2.5,2,6.5,6.8,9.9,10.6,15.9,15.7,12.6,9.1,5.9,4.1
1992,3.7,5,6.2,7.3,11.3,14,14.3,13.5,12,6.4,6,3.1
1993,4.6,5.4,5.7,7.7,9.2,12.6,13.6,13,11.1,7.3,4.2,3.3
1994,4,2.2,5.8,6.7,8.7,13,15.7,14.1,11.6,8.7,8.8,5.4
1995,3.4,4.9,4.2,7.3,9.7,12.6,16.1,16.7,12.5,11.6,7.2,1.7
1996,4.5,2.7,3.7,7.3,7.7,12.8,14.6,15.4,12.7,10.3,4.7,2.8
1997,3,5.4,7.5,8,9.4,12,15.2,16.9,12.6,9.2,7.9,5.4
1998,4.5,7.3,6.8,6.5,11,12.2,14,14.4,13.3,8.7,5.2,4.8
1999,4.6,4.1,6.3,8.3,10.8,12.2,15.5,14.4,14.3,9.8,7.2,3.3
2000,4.8,5,6.7,6.5,10.2,12.1,13.6,14.8,13.2,9.1,6,4.7
2001,3.2,3.1,3.4,6.4,11,12,15.1,14.9,12.1,12.2,7.1,3.7
2002,5.1,5.2,6.3,7.9,10.6,13.1,14.3,15.7,13.1,8.3,7.5,5.3
2003,4.3,3.5,6.6,8.7,10.6,14.5,16.2,16.3,13.1,8.3,7.7,4.3
2004,4.5,4.5,5.7,8.6,11,13.8,14.3,16,13.4,9.5,7.3,5.4
2005,5.9,4.2,6.4,7.7,9.5,13.6,15,14.7,13.6,11.2,5.6,4.8
2006,4.5,4,3.5,7.2,9.9,14.1,17.3,14.9,15.1,11.7,7.6,5.1
2007,6,5.2,6.6,9.8,10,12.9,14.3,14.4,12.7,10.4,7.2,4.3
2008,5.1,5.5,5,6.7,11.4,12.7,15.4,15.2,12.6,8.7,6.3,3.8
2009,3.4,4,6.5,8.7,10.4,13.2,15.4,15.6,13.4,10.2,7.3,2.3
