1901,4.7,2.4,6.2,9.8,13.1,19.8,22.4,22.7,17.5,11,7,3.9
1902,4.1,5.8,7.6,10.1,12.1,16.7,22.3,22.4,17.5,10.6,8.3,5.1
1903,4.9,5.1,7.5,9.4,12.1,17,21.8,22.5,17.3,13,8.3,3.9
1904,4,5,5.9,9.7,14.8,18.5,23.2,22.7,17.6,13.3,8,6.5
1905,3.9,3.5,8,10.6,12.7,17.4,22.2,22.2,17,11.6,7.1,4.7
1906,5,3.8,6.6,8.1,12.9,18.6,22,23.4,18,12.7,7.6,4.2
1907,3.5,3.3,6.9,9,12.1,18.6,20.7,22.1,17.9,10.6,8,6.3
1908,5.1,4.3,4.9,7.4,13.8,16.2,21.5,21.9,18.7,12.8,8.9,5.7
1909,3,3.1,6.4,9.8,13.3,15.9,21.1,22,16,12.6,8,6.4
1910,4.2,5.7,5.4,8.5,11.7,17.4,21.3,21.3,16.9,12.5,7.8,5.8
1911,2.3,4.7,5.7,8,12.2,16.4,21.8,22.6,19.2,11.7,7.5,6.2
1912,4.8,7.1,8,8.6,14.1,17.5,20.2,20,16.1,11.3,6.8,3.9
1913,5.7,4.6,6.3,8.4,13.2,18.5,21.8,21,16.1,11.9,8.6,4.7
1914,2.9,5.5,7.2,9.5,13.1,15.9,21,21.4,18.4,12.2,7.3,4.3
1915,2.9,3.8,6.5,7,12.8,17.4,22.7,22.8,17.2,10.6,7.1,5.1
1916,3.5,4.1,5.6,8.2,13,16.9,21.2,21.8,16.8,12.5,7.2,5.3
1917,2.9,4,5.1,7.1,12.8,17.3,22.5,21.6,18.9,11.3,6.1,1.5
1918,4.4,4,5.3,7.2,12.5,17.5,21.8,21.7,17.7,9.6,6.4,4
1919,2.3,5.5,6.2,7.7,12.3,17.5,20.6,22.7,17.6,10,6,2.7
1920,3.5,4.8,6.1,9.5,13.7,17.7,21.4,21.6,17.8,10.9,6.3,3.6
1921,3.5,4.2,6.1,7.9,12.1,17.2,22.5,21.7,18.3,13.7,6.7,3.2
1922,3.7,4.7,5.9,9,14,17,21.8,22.1,16.1,12.4,6.8,3.3
1923,1.3,4.8,6.8,7,12.9,15.4,22.8,23.4,16.5,14.1,6.3,2.1
1924,4,2.6,6.9,9.2,15.5,18.8,22.7,21.8,17.7,12.6,7.3,3.8
1925,2.6,3.2,3.9,8,12.1,16.6,20.2,22.2,16.9,11.3,5.9,5.5
1926,4.2,7,7.4,9.5,12.1,17.5,22.7,22.8,19.9,14,5.8,3.3
1927,3.5,3.5,6,9.5,14.2,18,20.8,22.3,18.2,12.9,6.5,4.3
1928,3,5,6.9,8.4,11.2,18.4,23.7,22.4,18.4,12.3,6.1,3
1929,2.4,4.9,6.4,9.3,12.1,18,22,21.5,17.9,11.6,6.7,5.3
1930,4.6,2.4,6.8,7.7,13.4,16.4,21.1,22.9,18.4,14,8.2,5.7
1931,3.7,3.7,7.8,9.3,12.9,19.3,22.5,21.4,17,12.8,7.8,2.7
1932,3.1,2.9,6.9,7.8,12.6,16.5,20.5,22.1,18,11.3,7.4,4.9
1933,2.9,4.2,6.3,10.3,14.6,16.9,22.9,24.3,18.6,13,5.5,2.2
1934,2.3,2.8,4.4,7.8,13.4,18.7,22.9,21.2,18.7,12.4,5.8,6
1935,1.7,3.1,6.6,9.1,11.3,18,23.4,22.3,19.1,11.2,6.7,5.3
1936,6.1,6.4,6.2,8.9,10.7,16,21.6,22.2,18.8,10.6,6,2.6
1937,4.6,6.4,5.9,9.8,12.8,17.5,22.9,22.9,17.8,12.8,9,3.7
1938,3.1,3,6.4,8.7,11.8,20.3,22.5,21.3,16,13.1,8.4,4.1
1939,5.4,4.4,5.3,8,11.4,16.3,22,21.5,18.1,11.5,7.3,4.6
1940,4.1,6.4,7.9,9.6,13,16.7,21.9,22.5,17.9,11.3,6.7,2.9
1941,3.1,5.7,7,8.6,11.6,17.1,21.8,21.9,18.2,12.6,7,3.6
1942,3.3,2.4,7.6,9.6,13.9,18.3,22.3,21.8,17.9,13.5,7.5,5.3
1943,5,3.9,6.6,10.2,14.4,19.5,21.2,21.4,17.3,11.6,6.1,4.8
1944,3.2,2.2,6.1,10,14.1,18.8,22,22.7,18.6,10.5,6.8,3.4
1945,1.4,4.4,6.9,11.5,15.2,19.3,22.8,21.9,19.7,12.8,9.3,6
1946,3,4.7,6.6,8.8,11.4,17.8,24,23.6,19.3,13.3,5.8,3.4
1947,1.9,3.8,6.7,8.8,10.7,18.1,23.4,22.9,18.5,10.9,8.9,3.7
1948,1.8,6,8.3,9.3,12.6,18.7,21.5,22.1,18.1,12.8,8,5.5
1949,4,4.1,6.3,11.1,12.8,18.5,23.2,23.7,19,13.3,8.2,5.2
1950,4,5.4,7,9.1,13.1,18.5,23.7,22.8,18.5,13.2,9.1,3.6
1951,3.2,3.8,6.6,8.8,10.6,18.1,22,20.8,17.8,10.9,6.6,5.6
1952,2.6,4.2,8,9.3,13.1,18.7,22.4,21.2,15.8,12.2,7.5,3.9
1953,2.8,3.6,6,9.5,14.3,16.4,22.2,22.8,17.4,11.5,8.8,6.4
1954,3,3,5.8,7.8,12.9,16.9,21.4,20.6,17.4,12.5,8.8,5.5
1955,5.9,5,5.9,9.9,15.1,18.5,23,22.8,18.8,12.6,7.9,6.4
1956,4.1,1.1,6.1,8.1,12.9,17.3,20.9,20.8,16.4,12.4,6,3
1957,3.1,5.4,8.1,8.5,11.9,16.5,22.2,22.3,18.7,11.7,6.6,3.2
1958,3.9,6.3,6.7,8.2,14.1,16.8,21.2,21.3,18.6,12.1,7.3,5.2
1959,4.9,4.7,7.4,9.5,12.9,17.8,23,21.7,17.9,13.2,7.6,4.4
1960,3.9,5.2,7.3,9.3,13.7,19.3,22.6,21.3,17.8,9.6,6.9,3.3
1961,3.7,6.2,7.5,10,15.1,18.6,23.2,23.1,19.5,12.5,7.4,5.2
1962,4.9,4.7,6.6,9.6,13.6,18,22.5,22.9,19.7,13.8,5.7,3.5
1963,3.8,3.9,6.4,8.8,12.8,17,22.7,21.2,17.1,13,7.5,4.5
1964,4.6,5.3,6.8,8.4,15.3,18,22.8,22.6,20.8,11.9,7.1,4
1965,4.2,3.5,7.2,9.4,14.7,18.9,21.2,21.9,15.6,12.2,7.2,4.8
1966,5.4,6.2,6.7,9.3,14.2,18,22,21.9,19,10.5,5,4.1
1967,3.7,4.9,7.8,8.1,12.5,17.1,22.6,22.6,16.6,13.4,8,3.4
1968,3.7,5,6.6,8.8,12.6,17.8,22.8,21.3,16.6,13.1,7.3,4.2
1969,4.8,4,6.8,9.4,13.2,16.7,22.9,22.1,15.6,12.4,7.2,3.2
1970,4.6,4.7,5.8,8.8,13,16.7,22.2,21.9,19,12,8.8,2.8
1971,3.5,4.9,4.8,8.1,11,16,22.1,21.8,18.5,14.4,5.6,4.1
1972,3.2,5.2,5.8,8.5,11.4,16.1,21.2,21.5,15.9,11.4,7.8,4.2
1973,3.6,4,5.3,8.2,13.3,17.9,21.5,23.1,17.9,11.6,8.1,3.2
1974,4.2,4.1,7.8,6.5,13.2,17.3,22.9,22,17.7,10.6,7,4.6
1975,4.5,5.2,5.4,8.4,11.3,16.4,22.4,23.1,16.6,12.7,6.7,4.3
1976,3.5,5.3,6.9,7.1,13.1,19.2,22.7,21.8,16.1,9.8,4.7,4.3
1977,4.1,5.1,7.5,9.3,11.9,15.2,19.8,19.7,18,12.5,10.3,5.9
1978,4.3,5.9,7.5,8.3,11.8,15.9,19.8,22.4,18.8,12.7,8.1,6.3
1979,6.5,5.6,6.3,8.6,12.9,18.9,23.4,22.3,15.5,11.7,6.9,5
1980,3.8,5.7,7.1,8.9,12.5,17.7,21.3,22.8,20.1,12.4,7.4,4.1
1981,3,4.2,7.9,8.6,12.9,18.9,22.1,21.1,18.1,12.6,9.8,5.6
1982,4.7,5.4,7.2,9.2,13.5,20,21.7,21.9,18.4,11.4,7,4.3
1983,4.1,3.4,7.6,9.2,12.1,19,21.4,20.9,20.1,14.5,9.6,5.3
1984,4.2,4.4,5.2,11,10.5,17,23.1,21.4,18.2,11.7,7.7,5.6
1985,3.1,6.6,6.3,10.2,12.6,18.9,23.7,22.3,20.5,14.6,7.9,4.6
1986,4.1,5.1,6.5,7.7,15.1,18.2,23.2,22,19.5,14,8.3,4.7
1987,3.9,5.3,8.3,10.8,13.5,18.9,23,23.1,20.1,12.7,8,5.9
1988,5.6,5.3,7.6,10.2,13.3,17.8,22.8,23.9,19,13.5,9,4.5
1989,4.5,5.8,7.8,9,14.7,19.8,25,24,18.6,14,8.9,6.9
1990,4.9,6.3,8.2,9.1,14.7,18.9,24.9,24.2,21.2,12.9,7.6,4.1
1991,4.4,4.4,7.6,9,13.1,19.4,24.3,24.4,20.2,11.5,7.1,5.4
1992,3.8,4.7,6.9,10,14.9,15.9,23.4,23.6,18.5,11.1,7.9,5.5
1993,3.9,4.9,7,8.9,13.2,19,23.2,23.7,16,10.2,7.4,4.8
1994,3.9,5.3,8.6,9.2,13.5,19.2,24.7,23.5,17,12.9,9.2,5.7
1995,5,6.3,7.6,10.1,15.2,18.6,23.4,23.2,15.9,14.5,9.3,6.5
1996,6.2,5.1,7.2,10.3,13.2,20,23,21.9,16.6,12.3,7.8,5.1
1997,5.2,6.7,8.7,11.3,14.2,17.8,22,23,19.7,14.9,8.5,5.5
1998,5.5,6.4,8.5,9.5,13.4,19,24.1,24.5,18.7,11.7,8.2,4.5
1999,4.4,4.4,7.4,10.6,14.6,19.7,23.6,22.6,18.2,13.5,6.9,4.8
2000,3.7,7,8,9,14.8,20.7,22.9,22.9,18.5,11.7,7.1,5.5
2001,5.3,6.1,9.3,10.5,13.2,20.1,22.4,23.5,18.8,14.4,6.9,4.1
2002,5.1,5.9,7.9,9.5,13.7,19.4,22.9,21.7,17.8,12.9,7.9,6.4
2003,4.4,4.6,8,9.7,14.9,21.2,23,24.7,19.1,13.1,8.2,5.2
2004,5.5,5.7,6.8,9.1,12.6,20.3,23.8,22.9,19.3,13.7,7.7,5.2
2005,3.4,3.3,6.7,10,15.3,20.2,23.8,22.6,17.5,13.2,6.9,4.5
2006,3.7,4.4,7.4,10.7,15,18.6,23.7,21.8,17.9,13.3,8.6,4.7
2007,3.8,6.9,7.2,9.7,13.8,18.3,23.2,23.1,18.8,13.1,7.6,5.1
2008,5.3,6.6,7.7,10.4,12.8,18.7,23.4,23.7,18.3,13.1,6.2,3.7
2009,3.6,4.5,7.7,8.9,14.8,19.3,23.4,24.4,18.4,14.1,9.3,5.2
