1901,3.8,2.6,3.6,7.3,10.9,11.6,16.1,13.7,12.4,8.6,5.5,3
1902,4.2,1.3,5.9,6.7,7.8,11.8,12.5,12.3,11.8,8.9,6.9,4.8
1903,3.4,6.5,5.4,5.4,9.8,11.5,13,12.4,11.6,9.1,6,2.9
1904,4.4,2.7,3.2,7.6,9.7,12.2,14.2,13.2,11.5,8.9,5.8,3.6
1905,4.6,4.8,5.8,5.9,9.9,13.2,15,12.7,11.2,6.3,4.8,6.6
1906,5.1,2.6,4.5,6.4,8.9,13.2,13.1,14.7,12.6,9.6,7.3,2.7
1907,4.1,2.5,5.8,6.4,9,10.5,13.5,12.3,12.3,8.8,5.7,4.4
1908,3.5,5.5,3.6,5.4,11.1,12.6,13.8,13.3,11.9,11.6,7.2,4.4
1909,3.9,3.9,3.2,8.2,10,11.5,12.9,13.9,11,8.9,4.6,3.5
1910,3.5,4.2,5.5,6.2,10.4,13.2,12.8,13.5,11.5,9.6,2.8,6
1911,4.5,4.2,4.4,6.7,12,12.9,15.3,15.1,11.5,8.3,5.5,5.9
1912,3.6,4.7,6,8.3,10.3,12.2,13.8,11,10.1,7.7,6,5.9
1913,3.7,4.6,4.7,6.9,9.9,12.3,13.3,13.8,12.5,9.9,7.9,4.7
1914,4,5.9,4.7,8.7,9.8,13.2,14.3,14.5,12.1,9.5,6.6,4
1915,3.6,3.4,4.8,7.4,9.6,12.8,12.7,13.5,12.1,8.4,2.7,4
1916,7.1,3.5,2.8,7.1,10,10.8,13.8,14.9,12,9.3,7.1,3.1
1917,2.3,1.9,2.7,4.7,10.9,12.4,14.2,14.2,12.6,6.6,8.2,3.2
1918,3.2,6.5,4.9,6.4,11.3,11.8,13.9,14.6,10.2,8.7,4.8,6
1919,3.2,2,2.5,6.9,12.2,12.3,12.9,13.8,11.5,7.9,2.8,4.9
1920,4.4,5.5,5.5,6.8,10.3,12.9,12.7,12.7,11.7,9.9,8,3.7
1921,6.4,4.7,6,7.6,9.8,13.2,15.8,13.3,12.5,11.6,5.1,6.4
1922,2.9,3.8,4.5,4.9,10.3,11.9,11.8,12.2,11,8,6.5,5.1
1923,6.1,4.6,6,6.4,7.9,11.6,15.2,12.9,11,8.8,3.3,3.4
1924,4.2,4,3.3,5.9,9.7,12.4,13.1,12.5,11.8,9.2,7,7.2
1925,5.5,3.8,4.9,6.6,10,13.8,15.2,14.1,10.5,9.5,3.1,2.3
1926,4.9,5.5,5.6,8.3,9,12.4,15.3,14.5,12.7,7,5.1,4.6
1927,4.5,4,6.1,6.7,9.6,10.5,15,14.3,11.2,9.6,5.7,2.1
1928,4.7,5.2,4.9,7.4,10.1,10.8,13.2,13.4,11.3,9.3,7,3.6
1929,2,1.4,5.6,5.8,10.2,11.7,13.8,13.3,13.1,8.5,6.3,5
1930,4.3,1.7,4.2,7.6,10,13.4,13.6,13.9,12.2,9.3,5.1,4.5
1931,3.2,3.8,3.6,6.6,9.8,11.9,13.4,13,10.6,8.5,7.6,6.1
1932,6.5,4.2,4.8,6.1,9.4,13.3,14.3,14.6,11.6,7.9,6.3,5.9
1933,2.5,3.8,6.4,8.2,10.6,14.1,15.9,15.3,13.7,9.5,5.2,3.4
1934,5.1,5.3,4.3,6.6,9.7,13.6,16.1,13.5,13.2,9.4,6.1,7.5
1935,4.9,5.2,6.4,7.3,9.6,12.9,14.6,14.6,12.1,8.7,5.9,2.7
1936,3,3,6.1,5.7,10.6,13.2,13.9,14.7,13.5,9.3,5.5,5.3
1937,5,4.1,2.7,8.5,10.9,12.5,14,15,11.9,9.1,5.7,2.8
1938,5.4,5,8.2,7.5,9.3,12.3,13.2,14.2,12.8,9.8,8.6,4.6
1939,3.4,5.4,5.6,7.5,10.7,13.2,13.9,15.1,12.8,7.6,7.7,3.7
1940,-0.4,2.7,4.8,7.4,11.6,15,13.2,14,11.1,9.1,6.6,4.3
1941,0.6,2.6,4.1,5.7,9,13.3,14.5,13.3,14.2,10,6.2,5.7
1942,2.1,1,4.3,8.2,9.6,12.5,13.6,14.4,12,9.3,5.2,6.4
1943,4.4,6.2,6.3,9.1,10,12.7,14.2,13.5,11.6,9.9,6.4,4.2
1944,6.1,4,5.1,8.9,9.9,12.1,14.5,15,11,8.3,5.5,4.9
1945,0.5,6.3,7.5,8.4,10.2,12.8,14.6,14.6,13.1,10.7,7.4,4.9
1946,3,5.4,4.8,8.5,10,11.7,13.8,12.9,12.7,9.1,7.4,3.4
1947,2.7,-0.7,1.9,7,11.5,13.3,14.4,17.1,13.2,10.4,6.6,4.8
1948,3.8,4.5,7.5,8.2,10,12.1,14,13.4,12.5,9.4,7.7,5.3
1949,5.4,5.4,5.1,8.5,9.9,13.8,15,14.9,14.5,10.8,6.8,5.6
1950,4.6,4.2,6.6,6.3,10.3,14,14.1,13.8,11.4,8.9,5,1.2
1951,3.3,2.8,3.2,5.4,8.8,12.5,14.2,13.3,13,9.7,7.9,5.1
1952,1.8,3.5,5.5,8.3,11.6,12.1,14.6,14.1,9.8,8.2,4.2,3.2
1953,4.2,4.7,5.3,6.2,11.6,13.7,13.7,14.2,12.9,9.4,8.2,6.5
1954,3.4,2.1,5,7.2,10.5,12,12.5,12.9,11.1,10.5,6.3,6.2
1955,2.4,0.9,3.1,8.4,8.9,12,16.3,16.1,13.2,8.3,7.4,5
1956,2.8,1.3,5.9,6.6,10.5,12,14,11.7,13.1,9.1,6.4,6.2
1957,5,4,7.9,8,9.5,13.3,14.5,14.1,11.1,9.8,6.6,4.7
1958,2.9,3.6,3.2,7,8.9,12.3,14.3,14.3,14.1,10.4,6.7,4
1959,1.3,4.5,6.7,8,12.1,13.8,14.8,15.4,13.5,11.9,7.1,5.6
1960,3.7,2.8,5.8,8.6,11.6,14.7,13.6,13.8,12.1,9.8,6.4,3.1
1961,3.2,6,7.5,8.2,10.1,12.5,13.2,13.3,13.2,9.6,6,2.4
1962,3.8,4.3,2.2,6.7,9.2,11.9,13.3,12.8,11.2,9.7,5.6,3.5
1963,-1,-0.3,5.1,7.2,8.9,13.4,13.2,13.1,11.5,9.7,6.8,3.2
1964,4.4,4,3.9,7.7,11.5,12.2,14,13.5,12.7,8.4,7,3.4
1965,2.5,3.2,4,7.2,10,12.7,12.8,13.3,10.8,10.2,3.9,3.9
1966,2.5,4.1,6.1,5.5,10,13.6,13.8,13.1,12.8,8.8,5.1,4.6
1967,4.5,4.8,5.9,7.4,8.5,12.9,14,13.9,12.4,9,5.3,4.3
1968,4.5,1.4,5.5,7.2,8.5,13.5,13.3,14,12.6,11.6,6.2,3.4
1969,4.5,0.7,2.6,6.6,9.8,12.8,14.4,15.1,12.9,12.4,4.2,3.2
1970,3.4,2.1,3.7,5.8,11.4,15.1,13.1,14.8,12.8,10.1,6.9,4.5
1971,4.4,5,4.9,7.5,10.4,11.5,14.9,14.1,13.3,11.1,6.2,7.1
1972,4,4.2,5.5,7.7,9.8,10.7,14.4,13.2,11.1,10,5.6,5.8
1973,4.3,4,5.9,6.3,10.1,13.5,14.3,14.3,12.7,8.7,5.8,4.6
1974,5.9,5.1,5.1,7.8,10.1,12.5,13.2,13.7,10.8,7.5,6.1,7.2
1975,6,4.6,4.4,7.6,8.8,13.5,15.4,16.6,11.7,9.8,6.2,5.8
1976,5.7,4.6,4.4,7.8,10.3,14.3,16.2,15.8,12.5,9.6,6.1,1.9
1977,2.4,4.1,6.1,6.7,9.7,12.1,15.2,14.3,12,11.5,5.7,5.6
1978,2.9,2.3,5.7,6.3,12.1,12.5,13.3,13.8,13,11.6,8.2,3.6
1979,0.4,1.5,3.7,6.6,8.1,13.1,13.9,13.3,12,10.7,6.4,4.7
1980,2.5,4.8,4,8.3,10.7,12.3,13.5,14,13.3,8.3,6.7,5.6
1981,4.8,3.2,6.3,7.4,10.7,12.2,13.8,14.5,13.2,6.8,7.2,0.9
1982,2.9,4.8,5.3,8.4,9.8,13.3,14.8,14.1,12.3,9.5,6.7,3.9
1983,6,2.1,5.9,5.7,9.3,12.7,17,15.8,12.2,9.6,7.3,5.9
1984,2.8,3.8,4.5,7.8,9.9,13.6,15.5,15.8,12.2,10.3,7.4,5.4
1985,1.2,2.7,4.1,7.5,10,11.4,14.1,12.9,13,10.2,3.5,5.5
1986,2.9,0.2,4.6,5.2,9.8,13.4,13.6,11.9,10.6,9.9,7.4,5.4
1987,1.5,3.4,4,8.9,9.5,11.3,14.4,13.8,12,8.2,6.2,5
1988,4.5,4.5,5.2,7.4,10.4,14,13.2,13.5,11.9,9.5,5.5,7.3
1989,6.8,5.5,5.9,5.9,10.9,12.9,15.9,14.4,12.4,10.8,6.4,3.4
1990,6.1,5.9,7.5,7.4,11.5,12.6,14.8,15.5,11.6,10.9,6.1,4.1
1991,2.9,2.5,6.9,7.2,10.4,11,16,15.3,12.9,9.4,6.4,4.9
1992,4.1,5.5,6.5,7.5,12,14.4,14.1,13.4,12,6.8,6.6,3.6
1993,5.1,5.8,5.8,8.3,10,13.3,13.5,12.9,11.4,7.3,4.8,4
1994,4.2,2.9,5.8,6.6,9.4,12.4,15,13.7,11.4,9.5,9.3,5.9
1995,3.9,5.4,4.3,7.8,10.4,13.5,16,16.8,12.6,12.2,7.8,2.5
1996,5.3,2.9,4.3,7.5,8.1,12.7,14.3,15,12.9,10.7,5.3,3.3
1997,3.3,5.7,7.3,8.4,10.4,12.5,15.1,16.7,12.7,9.7,8.5,5.8
1998,5,7.6,7.3,6.9,11.7,12.4,14,14.3,13.6,9.3,6.2,5.6
1999,4.8,5,6.3,8.5,11.7,12.5,15.6,14.6,14.1,10.1,7.5,4
2000,4.8,5.5,6.9,6.9,11.2,12.8,14.4,14.8,13.5,9.3,6.4,4.9
2001,3.6,3.6,3.8,6.7,11.8,12.4,14.7,14.2,12.5,12.4,7.8,4.2
2002,5.8,5.9,6.6,8.2,10.9,13,13.7,15.4,13.2,8.7,8.1,5.2
2003,4.4,4.1,6.8,9.4,10.7,14.2,15.8,15.9,12.9,8.5,8.1,4.9
2004,4.9,4.7,5.8,8.6,11.3,13.9,14.1,16,13.4,9.5,7.9,5.8
2005,6.2,4.5,6.9,8,9.9,13.9,15,14.6,13.6,11.5,6,5.1
2006,4.6,4.5,4.1,7.4,10.6,14.3,17,14.7,14.9,11.9,7.7,5.9
2007,6.3,5.5,6.4,10.2,10.8,13.8,14.2,14.3,12.8,11,8,5.1
2008,5.6,5.6,5.4,7.3,12.3,12.9,15.4,15.1,12.5,9,6.8,3.9
2009,3.7,4.4,6.4,9,10.9,14.2,15.2,15.1,13.1,10.8,7.6,2.8
