1901,5.5,2.8,7.1,10.9,14,20.8,23.3,23.5,18.5,11.9,7.7,4.6
1902,4.8,6.7,8.6,11.2,12.9,17.5,23.3,23.1,18.2,11.4,9.3,5.9
1903,5.6,6,8.5,10.4,13,17.8,22.4,23.3,18.1,13.8,9.3,4.7
1904,4.9,5.9,6.9,10.7,15.9,19.5,24.1,23.5,18.4,14.1,8.6,7.3
1905,4.6,4.3,9.1,11.7,13.4,18.3,22.9,22.8,17.7,12.4,8,5.4
1906,6,4.8,7.6,8.9,13.8,19.5,22.7,24.3,18.7,13.5,8.5,5.2
1907,4.3,4.3,8,10,12.9,19.8,21.5,22.9,18.6,11.4,9,7.1
1908,5.9,5.4,5.8,8.3,14.9,17.1,22.3,22.7,19.5,13.6,9.8,6.5
1909,3.7,3.9,7.4,11.1,14.2,16.7,21.8,22.9,16.9,13.5,8.8,7.2
1910,4.9,6.7,6.4,9.5,12.5,18.4,22.2,22.1,17.7,13.2,8.6,6.6
1911,3.2,5.6,6.6,9.1,13.1,17.2,22.7,23.4,20.1,12.5,8.5,7
1912,5.5,7.9,9,9.6,15.1,18.5,21,20.7,16.9,12.2,7.7,4.4
1913,6.5,5.5,7.3,9.5,14.2,19.5,22.8,21.9,16.9,12.7,9.5,5.4
1914,3.5,6.4,8.3,10.8,14,16.9,21.8,22.2,19.3,13.1,8,5
1915,3.8,4.6,7.4,8,13.6,18.4,23.2,23.4,17.9,11.4,7.8,5.8
1916,4.3,5.2,6.7,9.3,14,17.7,21.8,22.6,17.6,13.3,8.1,5.9
1917,3.6,4.9,6.3,8,13.7,18.2,23.1,22.3,19.6,12,7,2.1
1918,4.8,4.8,6.3,8.3,13.5,18.3,22.3,22.1,18.3,10.4,6.9,4.7
1919,2.8,6.3,7.2,8.7,13,18.1,21.3,22.9,18.4,10.7,6.3,3.3
1920,4.2,5.3,7,10.4,14.2,18.4,21.9,21.9,18.2,11.7,6.8,3.8
1921,4.1,5,7.2,8.9,12.9,18.1,23.1,22.4,19.3,14.5,7.4,4.1
1922,4.4,5.7,6.9,10.2,14.8,17.7,22.2,22.7,16.8,13,7.4,3.8
1923,2.2,5.7,7.9,8,13.8,16.1,23.5,24.1,17.2,15.1,7.2,3
1924,4.8,3.3,8,10.3,16.5,19.7,23.4,22.5,18.6,13.6,8.1,4.5
1925,3.3,4,4.8,9.1,13,17.8,20.8,22.7,17.6,12.2,6.7,6.1
1926,4.7,7.9,8.3,10.5,13,18.4,23.3,23.4,20.7,14.8,6.7,4
1927,4.2,4.3,6.9,10.8,15.2,18.7,21.4,22.7,18.9,13.7,7.4,4.9
1928,3.8,6.1,7.8,9.3,12,19.4,24.2,23.2,19.2,13.2,7,3.6
1929,2.7,5.7,7.4,10.1,12.9,18.8,22.5,22,18.6,12.5,7.5,6.1
1930,5.4,3.2,7.8,8.8,14.5,17.6,21.8,23.6,19.3,14.9,9,6.6
1931,4.7,4.7,9,10.4,13.9,20.4,23.3,22.2,17.8,13.7,8.6,3.4
1932,3.8,3.7,7.9,8.8,13.5,17.3,21.2,23,18.9,12.3,8.4,5.7
1933,3.7,5,7.3,11.5,15.6,17.8,24,25.3,19.8,13.9,6.5,2.9
1934,3.1,3.7,5.4,8.8,14.5,19.9,23.9,21.9,19.7,13.4,6.6,6.7
1935,2.5,4.1,7.7,10.1,12,19,24.2,22.9,20.1,12,7.5,6.2
1936,6.8,7.3,7.1,9.8,11.6,16.9,22.3,22.9,19.6,11.3,6.8,3.3
1937,5.3,7.5,6.8,10.8,13.8,18.7,23.7,23.9,18.7,14,9.8,4.4
1938,3.9,3.7,7.6,9.8,12.7,21,23.3,22.4,17.4,13.9,9.5,5.1
1939,6.3,5.3,6.4,9.1,12.1,17.2,22.7,22.4,19.2,12.3,8.2,5.2
1940,4.5,7.4,9.7,10.6,13.9,17.5,22.7,23.2,18.7,12.1,7.5,3.6
1941,3.9,6.5,8.1,9.6,12.3,18,22.4,22.4,18.9,13.4,7.7,4.4
1942,4.2,3.2,8.6,10.7,14.8,19.3,23,22.5,18.7,14.3,8.2,6
1943,5.8,4.8,7.5,11.3,15.4,20.8,22.1,22.8,18,12.6,6.8,5.5
1944,4,3,7.1,10.8,14.9,19.6,22.6,23.5,19.4,11.2,7.6,4.2
1945,2.1,5.4,8,12.3,16.2,20.2,23.7,22.6,20.9,13.6,10.1,6.7
1946,3.5,5.6,7.5,9.8,12.1,18.5,23.6,23.5,19.8,14.6,8.1,4.3
1947,3.9,5.8,9.1,11,13.3,20.2,24.3,23.4,19.3,13.6,10,4.5
1948,5,7,9.5,10.4,13.6,19.7,22.2,22.8,19,13.8,9,6.3
1949,5.1,5.1,7.3,12.5,13.8,19.6,24.1,24.5,20,14.2,9.1,6.2
1950,5,6.4,8.1,10.3,14,19.5,24.6,23.6,19.5,14.3,10.1,4.5
1951,4.1,4.9,7.7,9.7,11.7,18.9,22.8,21.6,18.7,11.7,7.5,6.3
1952,3.3,5,9.2,10.2,14.2,20,23.3,22.1,16.9,13.2,8.4,4.8
1953,3.4,4.3,6.8,10.5,15.3,17.4,22.8,23.4,18.5,12.4,9.5,7.1
1954,3.7,4.1,7.1,8.9,13.7,17.9,22.2,21.4,18.3,13.4,9.7,6.2
1955,6.9,6.1,6.9,10.8,15.9,19.3,23.7,23.4,19.4,13.3,8.5,7.1
1956,5,2.1,7.2,9.2,13.9,18,21.8,21.7,17.6,13.1,6.8,3.7
1957,3.6,6.4,9.1,9.4,12.9,17.4,22.8,23,19.5,12.5,7.4,3.9
1958,4.6,7.1,7.9,9.1,15,17.8,21.9,22.1,19.8,12.9,8.2,6.1
1959,5.5,5.5,8.5,10.6,13.9,18.7,23.8,22.6,18.8,13.9,8.5,5.5
1960,4.8,6.1,8.5,10.3,14.6,20.2,23.3,22.3,18.8,10.7,8,4.1
1961,4.5,7.1,8.4,11.3,16.1,19.4,23.9,23.6,20.3,13.5,8.3,6.1
1962,5.6,5.6,7.6,10.6,14.5,18.8,23.4,23.7,20.7,14.7,6.6,4.2
1963,4.5,4.7,7.7,9.9,13.7,18.2,23.4,22.1,18,13.9,8.7,5
1964,4.9,6.4,7.9,9.5,16.3,19,23.7,23.4,21.6,13,8.1,4.9
1965,4.9,4.3,8.3,10.4,15.5,19.7,22.3,22.6,16.6,13.2,8.3,5.8
1966,6.5,7.4,7.7,10.7,15,18.9,22.8,22.8,19.9,11.8,6.1,5.2
1967,4.5,5.8,8.9,9.1,13.6,17.9,23.4,23.3,17.9,14.6,9.1,4.3
1968,4.7,6.1,7.5,9.9,13.6,18.8,23.6,22.2,17.9,14.3,8.3,5.3
1969,5.7,4.7,7.9,10.4,14.3,17.7,23.5,22.8,16.7,13.4,8.1,4.3
1970,5.5,5.8,6.7,9.8,14,18,23,22.8,20,12.9,9.9,3.6
1971,4.4,5.8,5.7,9.3,12.2,17.1,23,22.8,19.4,15.2,6.5,5
1972,4.1,6.2,6.9,9.5,12.3,17.1,22,22,16.8,12.3,8.9,5
1973,4.6,5.1,6.3,9.1,14.3,18.7,22.4,23.7,19.1,12.5,9.1,4.2
1974,5.3,4.7,8.6,7.7,14.4,18.4,23.4,22.8,18.9,11.5,8.1,5.4
1975,5.5,6.1,6.6,9.4,12.3,17.6,23.3,23.8,17.7,13.6,7.7,5
1976,4.4,6.2,7.9,8.3,14.2,20,23.4,22.6,17.2,11.1,5.9,5.3
1977,5,6.5,8.7,10.3,12.8,16.4,20.7,20.5,18.8,13.6,10.8,6.7
1978,5.1,7,8.7,9.5,12.9,17.1,20.7,23.2,19.8,13.6,8.9,7.1
1979,7.3,6.7,7.6,9.7,13.9,19.8,24,23,16.8,12.8,8,6
1980,4.7,6.7,8.3,9.7,13.5,18.7,22,23.6,21,13.4,8.2,4.9
1981,4.2,5.2,9.2,9.8,13.9,19.9,22.8,22,19.2,13.8,10.6,6.8
1982,5.9,6.5,8.2,10.2,14.3,21,23,22.7,19.3,12.5,8.2,5.4
1983,5,4.3,8.7,10.4,13.3,19.8,22.6,21.9,21.1,15.2,10.6,6.2
1984,5.2,5.4,6.2,11.9,11.6,17.9,23.8,22.2,19.1,12.6,8.9,6.3
1985,3.8,7.6,7.5,11.3,13.5,19.9,24.6,23,21.3,15.5,8.8,5.6
1986,5.2,6,7.7,8.9,16.1,19.3,23.9,22.9,20.4,15,9.3,5.7
1987,4.8,6.3,9.3,11.9,14.6,19.7,23.8,24.1,21.2,13.8,9,6.9
1988,6.7,6.3,8.9,11.3,14.5,18.8,23.6,24.6,19.9,14.5,9.8,5.4
1989,5.3,6.8,9,10.2,15.6,20.7,25.6,24.9,19.4,14.9,10.1,7.9
1990,5.7,7.6,9.3,10.1,15.5,20.1,25.5,25,22,14,8.7,4.9
1991,5.2,5.4,8.7,10,13.8,20.2,25,25.3,21,12.4,8.3,6.2
1992,4.4,5.6,8.1,11.1,16,16.9,24.1,24.6,19.6,12.3,9.2,6.4
1993,4.7,5.7,8,10.1,14.3,20,23.9,24.4,17.3,11.3,8.2,5.9
1994,4.9,6.3,9.7,10.4,14.9,20.4,25.6,24.8,17.8,14,10.2,6.5
1995,6.1,7.5,8.7,11.2,16.1,19.6,24.3,24.1,17.2,15.4,10.4,7.5
1996,7.2,6.1,8.3,11.4,14.4,21,23.9,22.9,17.7,13.2,8.9,6.1
1997,6,7.8,9.8,12.4,15.1,19.1,22.9,23.9,20.7,16,9.6,6.4
1998,6.4,7.4,9.7,10.8,14.5,20.2,25,25.3,19.9,13,9.2,5.4
1999,5.3,5.6,8.6,11.8,15.9,20.7,24.5,23.7,19.4,14.4,7.8,5.8
2000,4.4,8.1,9.2,10.4,16,21.6,23.9,23.8,19.6,13,8.3,6.6
2001,6.5,7.1,10.5,11.8,14.6,21.2,23.4,24.5,19.9,15.6,7.8,4.8
2002,6,7.1,9.2,10.8,14.7,20.6,23.7,22.6,19,14.1,9.2,7.5
2003,5.4,5.5,9.1,11,15.9,22.7,24.3,25.7,20.2,14.1,9.4,6.2
2004,6.7,6.6,7.9,10.3,13.8,21.5,24.7,24.1,20.4,14.9,8.7,6.3
2005,4.3,4.2,7.8,11.1,16.2,21.4,24.6,23.5,18.6,14.3,8,5.3
2006,4.6,5.5,8.9,11.9,16.1,19.7,24.8,22.8,19.2,14.7,9.9,5.7
2007,5,8,8.5,11,15.2,19.6,24,23.8,19.7,14,8.5,6
2008,6.4,7.6,9,11.8,14,19.7,24.2,24.5,19.4,14,7.3,4.7
2009,4.7,5.6,8.8,10.2,15.9,20.6,24.3,25.2,19.5,15.2,10.7,6.1
