1901,3.8,2,4.1,8.6,12.1,14,17.7,16.1,14.1,9.6,5.3,4
1902,4.9,2.1,7.1,7.9,8.9,13.3,15.1,14.9,13.3,9.8,7.2,4.4
1903,4.6,6.4,6.8,6.6,11.4,13.2,15.3,14.5,13.4,10.8,6.8,3.2
1904,4.3,3.8,4.5,8.7,10.9,13.6,17,15.4,12.8,10.2,5.9,5.3
1905,3.9,5.1,6.9,7.8,10.8,14.5,17.2,14.9,12.7,7.3,5.1,5.4
1906,5.6,3.4,5.2,7.6,10.3,14.1,15.5,16.6,14.2,11.1,7.4,3.2
1907,3.9,2.6,6.5,7.5,10.5,12.2,14.8,14.6,14.3,10.1,7.1,5.3
1908,2.9,5.5,4.6,6.7,12.4,14.7,15.9,15.3,13.2,12.2,7.6,4.9
1909,3.7,3.3,4.1,9.4,11.4,12.9,15,16.3,12.6,10.5,4.9,4.1
1910,4.3,5.3,6.3,7.2,11.4,14.3,14.6,15.4,13.1,10.9,4.8,6.5
1911,3.5,4.5,5.4,7.2,13,14.6,18.4,18.2,14.5,10,6.1,6.7
1912,4.6,5.7,7.4,9.4,11.9,13.7,16.4,12.9,11.5,8.7,6.4,6.7
1913,5.2,4.7,6.4,7.9,11.4,13.6,15.4,16,14.3,11.4,8.6,5
1914,3,6.3,6.4,10.1,11.1,14.4,15.8,16.1,13.8,10.3,6.7,5.2
1915,4.2,4.2,5.3,8.1,12.1,14.4,14.8,15.6,13.5,9.5,3.7,6
1916,7.5,4.1,4,8.3,11.7,11.8,15.5,16.6,13.5,10.9,6.9,3.2
1917,1.6,1.3,4.1,5.5,12.8,14.8,16.3,15.5,13.9,8.1,8.3,2.3
1918,3.9,6.4,6,7.4,12.7,13.4,16,16.2,12.5,9.3,5.9,7
1919,3.5,3.1,4.7,7.3,13,14.1,14.7,16.6,13.4,8.2,3.6,6
1920,5.3,6.2,6.9,8.5,12,14.4,14.7,14.2,13.6,11.4,7.1,4.2
1921,7.3,4.9,6.9,8.6,11.8,15.5,18.5,15.5,14.8,13,6.3,6.3
1922,4.4,5,5.5,6.4,12.5,14.2,14,13.8,12.6,8.4,6,5.7
1923,5.4,6.2,7.1,8.1,10.1,13.1,17.7,15.7,12.9,10.1,3.9,4.3
1924,5.1,3.2,5,7.3,11.4,13.9,15.2,14.2,13.3,10.8,7.1,6.6
1925,5.8,5.1,5,7.9,11,15.5,16.6,15.9,11.9,10.9,4,3.6
1926,5,7,6.5,9.2,10.7,13.4,17.4,16.8,15.2,9.2,6.7,3.9
1927,5,4.7,7.3,8,12.1,13,16.3,15.9,12.9,10.7,6.4,2.8
1928,5.5,6.4,6.3,8.7,11.6,13.3,16.5,15.7,13.5,10.8,8,4.6
1929,1.6,1.4,6.5,7.1,11.3,13.5,16.4,15.5,16,9.9,7.1,6.2
1930,5.7,2.7,5.8,8.7,11.2,15.4,15.5,15.9,14.3,10.9,7,4.9
1931,4.2,4.4,4.5,7.8,11,14,15.2,15.1,12.2,9.8,8,5.5
1932,6.6,3.4,5.2,6.9,10.1,14.3,15.8,17,13.8,9.3,7,5.5
1933,3,4.1,7.5,8.2,11.8,15,17.1,17.4,15.5,10.8,6.2,1.5
1934,4.7,3.6,5.3,7.8,11.1,15.5,18.2,15.3,14.3,10.6,6.4,8.2
1935,4.9,5.7,6,8.4,10.7,14.4,17.2,16.2,14,9.8,7,3.9
1936,5.1,3.6,7.1,6.7,11.8,14.6,15.3,16,14.8,9.7,6.3,5.6
1937,5.7,6.2,4.2,9.5,12,14.2,16,16.6,13.7,11.2,6.5,3.7
1938,5.9,4.9,8.3,8,10.3,13.6,14.8,16.2,14,10.9,9.1,4.5
1939,4.9,5.6,6.5,8.6,11.5,14.9,15,16.2,14.5,9,9.1,3.6
1940,0.7,3.8,6,8.7,12.3,16.2,15.2,15.8,13.1,10.1,7.2,3.8
1941,1.3,3.6,5.8,6.6,9.1,14.5,16.6,14.8,14.3,10.7,6.8,5.9
1942,2.1,0.5,5.6,9.3,10.6,13.9,15.6,16.2,14,10.6,5.7,6.7
1943,5.8,5.9,6.9,9.9,11.7,13.7,16.4,15.5,12.7,10.8,6.7,3.8
1944,6.3,3.6,5.2,9.5,10.8,13.9,15.8,17,12.5,9.4,6.6,4.4
1945,0.7,6.6,7.3,9.9,12,14.4,16.5,16,14.6,12.2,7.4,5.9
1946,3.8,6.3,5.6,9.4,11.4,12.6,15.7,14.5,13.8,10.6,8.1,3.5
1947,2.6,-1.1,4.6,8.3,12.2,14.7,16.5,18.9,15.3,11.3,7.9,5.1
1948,5.8,4.7,8.7,9.1,12.3,14,15.9,15.1,13.6,10.3,7.9,5.7
1949,5.5,5.5,5.7,9.6,10.9,14.9,17.6,16.9,16.6,12.2,7,6.1
1950,4.3,5.6,7.7,7.8,12.3,15.8,16.2,15.7,13.2,10.1,6.5,1.9
1951,4.5,4.2,4.6,7.2,9.9,13.5,16.2,14.9,14.1,9.9,8.6,6
1952,3.5,3.8,6.9,9.3,13,14.1,16.8,16.1,11.3,9.6,5.1,3.8
1953,3.6,4.1,5.7,7.6,12.5,14,15.5,16,13.9,10.1,8.5,7.5
1954,3.4,3.1,6.3,7.4,11,13,13.9,14.4,12.9,12,7.4,7
1955,3.4,1.6,3.2,9.1,9.8,13.7,17.4,18.1,14.2,9.5,7.1,6.7
1956,4.4,-0.4,6.3,6.6,11.4,13,15.5,13.7,14,9.6,6.3,6.1
1957,5.5,5.7,9.2,9,10.5,15.1,16.6,15.5,12.9,11.2,6.2,4.6
1958,4.1,5.7,4,7.3,11.2,13.3,15.6,15.5,14.8,10.9,6.7,4.8
1959,2.7,4.7,7.3,9.2,12.3,15.1,17.3,17.2,15.1,12.4,7.3,6.3
1960,4.5,4.2,6.7,9,12.6,16,15.2,14.9,13.1,10.3,7.8,4
1961,4.5,7.3,7.6,10,10.9,13.8,15.3,15.6,15.2,11.3,6.4,3
1962,4.9,4.6,3,7.8,9.7,13.4,15.1,14.5,12.7,10.4,5.9,2.6
1963,-1,-0.3,5.7,8.4,10.4,14.8,15,14.5,13.1,11.3,8.7,2.5
1964,3.5,4.6,4.9,8.2,12.8,13.7,16,15.3,14.3,8.9,7.9,3.9
1965,3.9,3,5.6,8.1,11.2,13.8,14.4,14.9,12.1,11.1,5.3,5.4
1966,3.3,6.6,6.6,7.9,11,15.1,15,14.9,14,10.7,5.4,6.2
1967,4.6,5.7,7.1,8.2,10.7,14,16.3,15.4,13.8,11.3,5.7,4.7
1968,5,2.3,6.3,7.6,9.7,14.7,15.2,15.7,14.1,12.9,7.1,3.5
1969,6,1.7,4.3,7.8,11.1,14.1,16.3,15.9,14,12.8,6.2,3.8
1970,4.5,3.9,4.2,6.9,12.1,15.9,15.3,15.7,14.6,10.9,8.7,4.1
1971,5,4.6,5.3,7.9,11.5,12.8,17.2,16,14.4,11.7,6.4,6.5
1972,4.5,5.2,7.3,8.7,10.3,11.5,15.6,15.4,11.9,10.7,6.5,6.4
1973,4.8,4.7,6,7.5,11.4,14.5,15.8,17,14.7,9.4,6.9,5.5
1974,6.8,6.1,5.9,8.5,10.7,13.8,15.1,14.7,12.1,7.9,7.4,8
1975,7.2,5.1,5.3,8.2,10.4,15,17.5,18.1,13.6,10.1,6.6,5
1976,6.1,4.6,5.1,8.1,11.6,16.5,18.3,17.7,13.5,10.9,6.8,2.4
1977,3.5,6.3,7.4,7.2,10.8,12.2,16.1,15.4,13.1,12.1,6.7,6.5
1978,4.1,2.9,6.9,6.7,11.3,13.4,14.9,14.9,13.8,11.9,8.8,5.1
1979,0.9,1.6,5.1,7.9,9.4,13.4,16.2,14.6,13.2,11.5,7,6.2
1980,2.5,6.5,5.2,8.9,11.2,13.7,14.5,15.8,14.8,9.2,6.4,5.7
1981,4.9,3.2,8.3,8.3,11.1,13.3,15.8,16.5,14.7,8.7,7.7,1.7
1982,3.2,5.2,6.1,8.5,11.5,15.7,16.7,15.7,14.6,10.6,8.3,4.8
1983,6.7,2.1,6.3,6.9,10.1,14.4,19.5,17.6,13.9,10.5,7.4,5.9
1984,4.3,3.9,4.8,8.2,10.2,14.6,16.9,17.4,14.1,11.2,7.7,5.4
1985,0.8,2.6,4.8,8.4,11.1,12.9,16.1,14.7,14.3,10.8,4.3,6.6
1986,4.1,-0.7,5,5.7,10.6,14.8,15.9,13.8,11,10.9,7.8,6.2
1987,1,3.8,4.6,9.7,10.5,13.2,16.1,15.8,13.9,10,6.7,5.6
1988,5.9,4.8,6.8,8.3,12,14.8,14.9,15.1,13.4,10.9,5.6,7.4
1989,6.3,6.1,7.7,6.5,13.6,14.7,18.4,16.7,14.6,11.8,6.9,5.2
1990,7,7.8,8,7.9,13.1,13.8,17.1,18,13.1,12,6.8,4.1
1991,3.8,1.8,7.8,8,11.2,12.3,16.6,16.7,15,10,7.1,5
1992,3.6,5.5,7.6,8.6,13.4,15.6,16.5,15.6,13.6,8.1,8.1,4.1
1993,6.7,5.1,6.5,9.5,11.7,14.8,15.5,14.6,12.5,8.5,5.2,6.1
1994,5.7,4.2,7.9,8.2,10.9,14.1,17.5,16.1,13.1,10.4,10.7,7.1
1995,5.7,7.3,5.9,9,11.6,14.9,18.6,19.5,13.8,13.4,8.2,2.8
1996,4.9,3.1,5,8.3,9.4,14.1,16.6,16.3,13.8,11.9,6.5,3.3
1997,2.4,6.9,8.1,8.7,11.7,14.4,16.6,18.4,14.4,10.8,8.9,6.2
1998,5.6,6.8,7.8,7.8,13.4,14.4,15.5,16,15,10.8,6.5,5.5
1999,5.8,5.4,7,9.3,13,13.7,17.6,16.6,15.6,10.8,7.7,5.2
2000,4.7,6.5,7.4,7.9,12.4,14.4,15.9,16.8,15,10.5,7.2,6.1
2001,4.1,5,6.3,8.1,12.3,14.1,16.6,16.3,13.9,13.5,7.5,3.7
2002,6.5,7.4,7.5,9.3,11.9,13.9,15.7,16.3,14.3,10.7,9.4,6.2
2003,4.5,4.6,7.6,9.5,11.6,15.4,17.2,18.1,14.1,9.5,8.6,5.4
2004,5.8,5.1,6.3,8.9,11.9,15.5,16,17.3,15.3,10.7,8.1,5.4
2005,6.3,4.4,7.3,9.1,11.3,15.5,17,16.1,15.2,13.1,6.3,4.5
2006,4.5,3.8,5.5,8.8,12,15.6,19,16.9,16.5,13.3,8.6,6.8
2007,7.1,6.7,7.5,11.5,12.6,15.6,15.6,15.6,14,11,7.6,5.4
2008,6.8,5.5,6.8,8.2,13.6,14.3,16.4,16.2,13.5,9.9,7.6,3.8
2009,3.6,4.4,6.8,9.4,12.3,15.4,16.5,16.3,14.2,12,9.3,3.8
