1901,3.6,2.4,3.7,8.3,13.4,13.9,17.7,15.1,12.9,8.5,5.8,2.7
1902,3.6,2.1,6.2,9.1,10,14,13.9,13.9,12.8,8.9,7.3,4.3
1903,3.1,6,5.3,6.9,11.7,13.2,13.5,13.8,11.8,8.6,5.2,2.6
1904,4.2,1.9,4.3,7.9,11.4,14.7,15.8,14.5,11.9,9.3,4.8,3.8
1905,4.6,4.1,5.5,6.5,12.1,15.9,15.8,13.9,12,7.4,4.2,4.3
1906,3.9,1.9,4.3,7.9,9.8,15,14.9,15.6,13.6,10.2,6.5,2.9
1907,3.6,3.4,6.2,8,11,11.7,13.7,12.3,12.7,9.5,5.7,3.3
1908,3.6,4.7,4,6.4,12.2,14.7,14.4,13.7,11.8,11.5,7,4.6
1909,4.1,4.6,3,8.5,11.8,12.7,14,14.6,11.6,8.5,4.1,2
1910,2.8,3.7,6.2,6.9,12.6,14.6,13.9,15,12.3,9.9,2.8,4.9
1911,4.4,4.7,5.1,8.1,13.7,14.1,16.5,16.5,12.3,8.5,4.6,4.8
1912,2.6,4.1,6.6,9,11.5,13.1,14.3,11.9,10.7,8.3,4.4,4.5
1913,3.1,4.7,4.6,7.6,11,14,14.6,14.7,12.6,9.8,6.7,3.4
1914,3.6,5.4,4.6,9.6,10.9,14.7,15.6,15.8,12.6,9.7,5.5,2.1
1915,2.6,2.9,4.6,8.2,10.9,14.4,14,14.6,12.4,8.9,2.6,2.2
1916,6.1,2.8,2.4,8,11.2,11.7,14.8,15.6,12.1,9,6,2.4
1917,1,2.7,3,5.7,12.6,14,16.1,15.8,12.3,6.3,6.4,2.7
1918,2,5.7,5.4,7.9,13.2,13.7,14.9,14.9,9.6,8.6,5.1,4.3
1919,2.6,1.9,2.4,7.6,13.8,13.2,13.6,14,11.3,8.3,2.1,3.1
1920,3.5,5.3,5.4,7.1,11.5,14.6,13.3,13.4,11.9,10.3,6.9,3.4
1921,4.6,5,5.6,9.5,11.5,14.2,16.1,13.6,12.8,11.6,5.1,6.3
1922,3.2,4.8,5.1,5.9,11.9,13,12.7,12.9,11.5,8.1,6,4.3
1923,5.8,4.2,6,7.4,9,12.1,15.4,13.9,11.2,8.6,2.7,3.6
1924,4.3,4.3,3.5,7.6,10.7,13.2,14.7,13.5,11.6,9.4,6.8,6.1
1925,4.7,3.5,4.6,7.5,11.4,15,16.4,14.9,10.5,9.6,3.9,1.9
1926,4.3,5.2,5.9,9.6,10.8,13.9,15.7,15.5,12.5,7,5.1,4.4
1927,3.6,5,6.8,7.2,10.6,11.7,15.6,15.6,10.9,9.5,4.9,1.3
1928,4.1,5.1,4.8,8.4,11.9,12.1,14,14.8,11.9,9.4,5.8,3.1
1929,1.7,2.2,7.1,7.3,12.6,13,15,14.3,13.2,8.2,5.2,4.3
1930,3.3,1.6,4.2,8.7,11.7,15.5,14.6,14.9,12.5,8.9,4.6,4.3
1931,2.9,3.3,2.8,7.6,11.3,12.7,14.2,13.9,11.3,9.2,6.7,5.7
1932,6,5,4.8,6.9,10.6,14.6,15,15.1,11.8,7.7,5.7,4.8
1933,2.8,3.6,6.4,9,11.8,15.5,17,15.8,13.8,9.3,5.3,3.5
1934,5,5.8,4.2,6.7,11.5,14.3,16.7,14.4,12.6,9,5.2,6.2
1935,4.3,4.5,6.1,7.4,11.3,13.7,15.8,15.7,11.9,8.5,5.2,2
1936,2.1,2.6,5.4,7.1,11.8,14.7,14.9,15.5,12.7,9.6,5.6,4.7
1937,4.1,3,1.7,8.2,12.5,14,14.6,15.2,12.1,9.3,5.2,1.8
1938,4.2,4.6,8,9,10.7,12.9,13.7,15.2,12.3,9.3,6.3,3.4
1939,2,5.2,5.2,7.9,11.6,14.6,13.9,15.7,13,8.3,6.1,3.7
1940,0.7,2.6,4.9,7.8,13,16.8,13.8,14.8,11,8.6,5.5,3.8
1941,-0.1,2.6,3.5,6.5,10.5,14.7,15.2,13.9,13.5,9.9,5.4,5.4
1942,2.2,2.3,3.4,9.2,11.6,13.5,14.7,14.7,11.7,8.8,5.7,5.9
1943,3.5,6.4,6.6,9.5,12,14.2,15.2,14,12,10.4,5.7,4.6
1944,5.4,4.1,5.7,9.8,11.2,13.3,15.4,16.3,11.6,8.9,4.5,4
1945,0.8,6.1,8.1,9.3,11.9,14.3,15.8,16.1,13.7,11.2,7.2,5.5
1946,3.7,4.8,5.6,9.8,12.5,13.8,14.6,14.3,12.4,8.6,6.3,3.9
1947,2.8,-1.3,1.6,7.5,13.1,14.2,15.7,18.5,13,10.7,5.4,4
1948,2.3,4.4,8.2,9.2,12.5,13.7,14.8,13.6,12.2,9.2,7.5,5.4
1949,5,5.9,5.8,9.4,11.9,15.3,16,15.6,14,10.6,6.3,4.2
1950,4.5,3.6,6.9,7.3,12.2,15.2,15.2,15.3,11.3,9.1,4.2,1.1
1951,2.6,2.8,3.2,6.5,11,14.2,14.9,14,12.6,10.5,6.8,4.5
1952,1.4,4,5.4,9.7,13.5,13,15.2,14.7,10.2,8.3,3.4,3.2
1953,4.6,5.3,7.4,7.2,12.9,15.1,14.6,15.3,13.2,10.3,7.5,6.4
1954,3.6,2.4,5.2,9.1,12.2,13.5,13.4,13.8,11.3,9.6,5.9,5.5
1955,1.6,0.8,3.9,10.1,10.9,14.2,17.7,17.5,13.5,8.7,7,3.8
1956,2.4,2.5,6,7.7,12.3,13.5,14.4,12.6,12.6,9.3,6.5,5.7
1957,5.2,3.7,7.4,9.2,11.4,14.9,14,14.5,11,10,6,4.5
1958,3.1,3.2,2.4,8.3,11.6,13.8,14.7,14.7,14.1,10.4,6.9,3.6
1959,1.1,5.7,6.7,8.7,13.2,14.8,15.2,16,14.1,12.1,6.6,4.6
1960,3.4,2.7,5.4,9.5,13.4,15.7,15,14.2,13,9.2,6,3
1961,3.1,5.6,7.4,8.9,11.9,13.2,13.4,14,12.9,9.5,4.5,1.8
1962,3.6,4.7,2.4,8.1,10.6,13.8,14.2,13.6,11.2,10,4.8,3.9
1963,-0.4,1.1,5.6,8.3,10.3,14.6,14.1,12.9,11.6,10,5.3,3.5
1964,5.1,4.7,4.8,8.5,11.8,13.4,14.1,13.5,12.4,9,6.3,3.3
1965,2.3,3.4,4.5,8.2,11,13.8,12.7,13.9,11.1,10.2,3.3,2.6
1966,2.4,2.9,5.6,6.1,11.5,14.6,14.3,14.2,12.6,8.6,3.9,3.5
1967,3.9,4.8,5.2,8,10.4,14.7,14.3,15.1,12.7,8.5,5.6,4
1968,3.3,1.6,5.4,8.6,9.4,15,13.9,15.2,12.4,10.4,5.7,4.2
1969,4,0.7,3.5,7.7,10.9,15.3,15.2,15.9,12.6,11.7,2.9,3.6
1970,3.2,1.9,3.4,6.2,11.7,16.3,12.8,15,12.4,9.3,4.9,4.2
1971,4,5.1,5.7,8.6,12.5,13.2,15.6,14.4,13.6,10.9,5.7,6.5
1972,3.9,4.7,5.9,8.8,11.8,12.4,15.6,14.4,11.8,10.6,5.3,5.2
1973,4.3,3.6,7,6.8,10.7,13.2,14.6,15.3,12.3,8.6,4.7,3.7
1974,5.6,4.8,5.8,9.9,12.1,14.1,14.2,14.8,11.2,7.8,5.3,5.9
1975,4.6,4.8,4.3,8,11.4,14.9,15.8,17.3,11.8,10.3,5.8,5.8
1976,4.3,4.7,4.8,8.7,11.6,15.6,17.3,17.3,12.1,9.1,5.6,1.6
1977,2.3,2.6,6,6.8,12.1,13.4,15.9,15.4,11.4,10.9,4.6,5.1
1978,2.2,1,5.4,6.8,13.3,14.1,13.8,14.4,11.7,10.4,7.1,3.5
1979,0.7,1.8,2.9,7.1,10.2,14.9,14.7,13.8,12.1,10.6,5.5,3.9
1980,2.3,4.5,4.4,9.9,13.6,14.1,14.3,15.1,13.1,7.8,5.5,5
1981,4.1,3.8,5.6,8.6,12.7,13.1,14.2,15.6,13.3,6.4,6,0.8
1982,2.2,4.8,4.8,9,12.2,14.8,16.9,14.3,11.9,9.4,5.6,3.6
1983,4.6,2.3,5.5,6.3,9.9,13.5,17.5,17,11.2,9.3,6.4,5.5
1984,1.1,3.9,4.4,9.4,11.7,14.3,16.7,17.2,11.2,9.5,5.8,5.1
1985,1,3.9,3.9,8,11.1,13,14.2,13.7,11.4,10.2,3.2,4.3
1986,2.5,0.2,4.6,6,10.5,14.9,14.2,12.9,11.8,9.4,6.5,3.7
1987,1.3,3.5,3.7,9.4,10.6,12,14.7,14.6,11.7,8.4,5.3,4.7
1988,3,3.6,4.8,8.3,12.9,15.5,13.9,14.2,12,9.1,5.8,6.7
1989,6.7,4.5,5.5,6.7,12.8,14.1,17.4,14.3,12.4,10,6,3.1
1990,5.1,4.4,6.7,8.1,13.1,14,16,15.5,11.7,9.9,5.1,4
1991,3.1,3.1,6.5,8.3,12,12.4,16.1,16.3,13.5,8.8,6,5.6
1992,4.8,5.5,5.4,8.5,13.7,15.8,14.9,14.3,11.3,7.3,5.6,3.6
1993,4.1,5.3,5.8,8.6,10.5,13.3,13.9,13.9,11.9,7.7,5.2,2.6
1994,3.4,2.4,4.6,7.5,11.4,13.8,16.1,14.8,11.6,9.1,8.8,5.1
1995,3.3,3.7,3.9,8.3,11.9,14.9,17.2,17.6,12.2,11.7,7.2,2.7
1996,4.4,3.4,4,8.6,10.2,14.5,15.2,15.7,13.5,10.5,4.4,3.3
1997,3.6,4.9,7,9.5,11.6,13.6,16.4,17.6,12.8,9.8,7.7,5.2
1998,4.4,6.6,6,7.2,12.3,13.2,14.6,14.8,13.1,8.4,5.5,5.2
1999,3.6,3.8,5.9,9,12.4,13.3,15.8,14.8,14,9.9,6.7,2.8
2000,4,4.4,6.4,7.3,13,13.4,14.6,15.7,13.5,9.6,5.5,4.2
2001,3.1,3.1,4.1,7.6,13.5,13.1,14.5,15.6,12,11.3,6.2,3.3
2002,5.1,4.3,6.1,9.5,12.7,14.8,14.2,15.7,13.5,8.5,7.1,3.9
2003,3.3,4.7,7.3,11.2,12.1,15.8,17.2,17.1,13.3,8.6,7.2,4.2
2004,3.3,4.4,6.2,9.2,13.2,14.6,15.2,16.5,12.8,8.8,6.6,4.8
2005,4.4,3.4,6.1,9.2,11.5,14.4,15.2,15.2,13,10.9,5.8,4.7
2006,4.3,4.5,3.5,8.2,12.1,15.7,17.9,15.1,14.2,11.2,6.3,5.9
2007,4.4,4.9,6.5,10.8,11.7,14.3,15.1,15,12.5,10.7,6.5,4.4
2008,3.8,5.5,4.8,8.2,14.2,14.2,16.2,15.4,12.4,8.3,5.3,3.4
2009,3.4,3.9,6.1,10,12.8,15.7,16.3,15.5,13,10.2,6.2,2.7
