1901,5,2.6,7.7,11.6,13.9,20.7,22.9,22.8,18.8,11.8,7.1,3.6
1902,4.3,7,9,11.8,12.6,18,23.1,22.2,17.9,12,8.9,5.2
1903,4.6,6.2,8.7,10.7,13.4,18.1,22.4,23.2,18.2,14.4,9.6,4.7
1904,5.5,6.9,7.1,11.1,15.9,19.8,23.7,23.4,18,14,7.8,6.4
1905,4.3,4.3,10,12.3,13.3,19,23.1,22.5,17.6,12,7.5,4.2
1906,5.6,5.4,7.5,8.9,13.8,19.8,22.3,23.6,18.4,13.7,8.3,4.7
1907,4.1,4.8,8.1,10.7,13,19.6,21.4,22.5,18.2,11.8,8.1,6.8
1908,5.5,6.1,6.6,9.3,15.3,17.3,22,22.2,19.3,14.5,9.4,5.7
1909,3.4,3.8,8.2,11.4,14.5,17.1,21.3,22.5,17.1,14,8.5,6.5
1910,4.6,7.7,6.9,10.2,12.7,18.8,21.9,21.7,17.3,13.2,9.1,5.9
1911,2.7,6.1,7.1,9.5,13.5,17.8,22.9,23.2,19.9,12.7,8.5,6.8
1912,5.2,8.2,9.9,10,15.3,18.5,21.2,21.1,16.5,12.2,7.2,3.9
1913,6.4,6.1,8.3,10.3,14.5,19.3,22.2,21.8,17.1,13.2,10.1,4.8
1914,2.9,7.1,9.6,11.1,13.7,16.9,21.4,21.5,19,13.3,7.8,5.1
1915,4.4,5.2,7.6,8.8,13.7,19,22.6,23.1,17.8,11.8,7.9,5.9
1916,4.8,6.4,7.5,10.2,14.5,17.8,21.6,22.7,17.6,13.7,8.8,6
1917,3.9,5.5,7.3,8.6,14.1,18.5,22.7,22,19.3,12.3,7.5,2.1
1918,4.5,5.2,7.1,9.2,13.9,18.4,21.7,21.3,17.8,10.8,6.8,4.8
1919,2.7,6.8,7.8,9.2,13,17.8,21.1,21.8,18.3,10.9,5.8,3.4
1920,4.7,5.2,7.3,10.8,13.8,18.1,21.1,20.9,17.4,12,6.5,3.1
1921,4.3,5.6,8,9.7,13.2,18.6,22.8,22.3,19.4,14.8,7.7,4.8
1922,4.7,6.7,7.7,11.3,15.1,17.8,21.5,22.2,16.4,13.1,7.6,3.7
1923,3,6.4,8.6,8.7,14.3,16.1,23.2,23.8,16.9,15.8,7.8,3.6
1924,5,4,8.8,11.5,17.2,20.2,23.4,21.9,18.7,14.4,8.7,4.8
1925,3.5,5.5,5.4,10,13.4,18.1,20.8,21.9,17.4,12.8,6.6,5.4
1926,5.2,8.9,9.2,11.2,13.5,18.2,22.3,22.5,20.5,14.9,7.7,3.6
1927,4.8,4.9,8.7,11.4,15.2,18.9,21.8,22.4,18.7,13.6,7.4,5.1
1928,4.2,6.5,8.7,10.3,13,19.3,23.9,23.2,19.2,13.8,7.9,3.7
1929,2,5.7,7.3,10.6,13.4,19.7,22.5,21.5,18.4,12.7,8,6.1
1930,5.9,3.4,8.3,9.6,14.6,18.2,22.2,22.9,19.1,15.1,9.5,6.4
1931,4.8,5.5,7.8,11,14.3,20.7,23,22.9,17.3,13.1,8.2,2.8
1932,3.3,3.3,8.7,9.9,14.3,17.3,20.7,21.5,18.6,12.6,9,5.4
1933,3.6,5.6,8,11.5,15.1,17.2,22.8,24.2,19.5,14,6.4,2.4
1934,3.4,4.2,6.8,9.7,14.8,19.7,23.4,21.5,19.4,13.4,6.2,7.3
1935,3,5.5,7.9,11,11.8,19.1,23.4,22,19.8,12.3,8.3,6.6
1936,7.4,7.9,8.3,10.6,12.2,17,21.7,21.8,19.1,11.4,7.4,3.3
1937,5.7,8.5,8.2,11.7,14.5,19,22.7,23.2,18.5,14,10.5,4.8
1938,4.1,4.2,7.7,9.6,12.6,19.2,22.1,21.9,17.2,13.9,9.6,5.1
1939,6.9,5.8,7.1,9.9,12.1,17.1,21.5,21.3,18.7,12.5,8.3,4.9
1940,4.3,7.8,10.2,11,13.9,17.1,21.4,21.8,18,11.8,7.9,3.1
1941,4.2,7.2,8.5,9.8,12.2,17.7,21.7,21.1,18,12.9,7.2,3.7
1942,4.5,3.9,9.4,11.5,15,19.3,22.1,21.8,18.6,14.6,8.2,5.3
1943,6.2,5.8,7.8,11.6,15.6,20.4,22.1,22.8,18.3,13,7.1,4.8
1944,3.8,3.5,7.4,11.5,14.6,19.3,22,22.8,18.9,11.5,8.5,4
1945,1.9,6.4,7.9,12.6,15.7,20,23.4,22.1,20.2,14.2,10,6.5
1946,3.4,6.4,8,10.4,13.3,18.4,22.4,22.9,19.9,14.9,8.6,4.1
1947,4.3,6.9,10.4,11.3,14,20.5,23.8,22.8,18.8,14.3,10.6,4.6
1948,7,7.2,9.9,11,14.7,19.7,21.5,22.7,18.9,13.5,9.4,6.3
1949,5.1,6,7.5,12.1,13.8,19.4,23.7,23.6,20,14.4,9.5,5.8
1950,4.9,7.4,8.2,10.3,14,19.8,24.2,23.4,19,14.3,10.6,4.1
1951,4.9,6.1,8.5,9.8,12.6,19.1,22.5,21.5,19,12,8.2,6.4
1952,3.3,5.5,10.1,10.7,14.9,20.8,23.2,22.4,17.5,14.2,9,5.3
1953,3.5,4.5,6.9,11.2,15.9,18.1,22.5,22.9,19.2,13,9.6,7.2
1954,4,5.3,8.4,9.5,14.2,18.6,22,21.6,18.7,13.9,10.5,6.4
1955,8,7.3,7.3,10.9,16,19.6,23.4,22.9,18.9,13.3,8.7,7.2
1956,5.7,2.8,7.7,10.1,14.2,17.9,22,22.2,18.5,13.3,7,3.7
1957,3.3,7.5,9.5,9.7,13.2,17.6,22.4,22.8,19.4,12.6,7.8,4.2
1958,4.8,7.4,8.8,9.3,15.2,18.7,21.7,22.2,20.4,13.3,8.7,6.7
1959,5.5,5.5,9.2,11.6,14,18.8,23.6,22.7,18.9,14,8.9,6.7
1960,5.4,6.8,9.7,10.9,15,20.3,23.1,22.7,19.1,12.2,9.5,4.3
1961,4.9,7.9,8.4,12.7,16.4,19.4,23.3,22.8,20.2,14.2,9,6.7
1962,6.1,6.3,8.2,11.2,14.7,18.8,23.4,23.5,20.9,15.1,7.2,4.4
1963,4.9,5,8.9,10.5,13.9,19,23.2,22.2,18,14.4,10.3,4.9
1964,4.6,7.3,9,10.2,16.5,19.7,23.7,23.2,21.4,13.9,8.8,5
1965,4.9,4.5,9.2,11.1,15.6,19.6,22.9,22.3,17.1,13.9,9.4,6.9
1966,7.5,8.9,8,12.3,15,19.3,22.5,23.1,20.1,13.5,7.1,6.3
1967,5,6.6,9.7,9.8,14.4,17.8,23.4,23.1,19.1,15.8,10,4.7
1968,5.7,7.2,7.8,10.7,14.3,19.1,23.4,22.5,19.5,15.4,9.5,6.5
1969,6.2,5.1,8.8,10.9,15,18.2,23,22.6,17.5,13.9,8.8,5.2
1970,6.6,7.2,7,10.6,14.4,19.2,22.9,22.9,20.5,13.5,10.8,3.8
1971,5,6.7,6,10.6,13.3,18,23.2,23.3,19.7,15.3,7.2,5.3
1972,4.6,7,7.9,10.6,12.9,17.8,22.2,21.5,17,12.8,10.2,5.5
1973,5.3,5.9,6.6,9.9,15,19.1,22.8,23.5,19.6,13.4,9.9,5.1
1974,6.5,4.5,8.5,9,15.3,19.4,22.9,22.9,19.6,11.9,9.3,6.2
1975,6.5,7,7.6,10.1,13,18.5,23.6,23.6,18.4,14.3,8.9,4.9
1976,4.9,6.8,8.5,9.4,14.5,20.3,23.5,22.8,18.2,12.7,7.3,6.4
1977,5.9,8.5,9.5,11.1,13.3,17.7,21.3,20.7,18.7,14.5,10.3,7.1
1978,5.3,8.3,9.5,10.6,13.8,18.2,21.2,22.8,20.2,14,9.2,7.9
1979,7.5,7.9,9,10.7,14.6,20,23.5,22.9,18.1,14,9,7
1980,5.6,7.4,9.3,10,14.2,19.3,21.8,23.7,21,14.3,8.9,5.3
1981,5.4,5.9,10.7,11,14.6,20.1,22.2,22.1,19.8,15.2,11.1,8.3
1982,7.5,7.4,9,10.8,14.6,21.4,24.3,22.6,19.6,13.9,9.5,6.4
1983,5.5,5.2,9.4,11.8,14.9,19.9,23.5,22.3,21.1,15.6,11.5,6.7
1984,6.2,6.3,7.1,11.9,12.7,18.5,23.3,22.5,19.4,13.4,10.2,6.5
1985,4,8.5,8.5,12.3,13.6,20.3,24.7,22.9,21,15.9,9.6,6.4
1986,6.5,6.9,8.7,10,16.5,19.9,23.7,23.4,20.5,15.6,10,6.5
1987,5.5,7.3,9.9,12.5,15.3,20,23.8,24,21.5,15.1,9.8,7.7
1988,7.8,7.2,10.3,12,15.5,19.3,23.8,24.2,19.8,15.3,10.3,5.9
1989,5.5,7.6,10,11.2,15.7,20.7,25.2,25,19.2,15.4,11.2,8.8
1990,6,9.5,9.9,10.9,16,21,24.8,25.2,21.8,14.9,9.8,5.5
1991,5.7,6.1,9.8,10.7,13.6,20.2,24.6,24.9,20.8,13.1,9.5,6.5
1992,4.4,6.1,9,12,16.4,17.8,23.7,24.7,19.9,13.7,10.9,6.9
1993,5,6,8.5,11.4,15.4,20.6,23.5,23.9,18.6,12.6,8.7,6.9
1994,5.8,7.2,10.1,11.4,16.4,21.2,25.6,26,18,14.8,11.2,7
1995,7.3,9,9.5,11.8,16.5,20,24.2,24.2,18.6,16,11.7,8.3
1996,8,7,9,12.3,15.4,21.4,24.1,23.5,18.3,13.7,10.2,6.8
1997,6.3,9,10.7,13.1,15.5,20.7,23.1,24.1,20.8,17.1,10.9,7.2
1998,7.1,8.2,10.6,12.5,15.4,21.2,25.2,24.8,20.8,14.4,10.3,5.8
1999,6.2,6.9,9.4,12.9,17.2,21,24.7,24.7,20.6,15,8.5,6.7
2000,4.6,9.4,10.1,12.2,17,21.5,24.3,23.8,20.1,14.4,9.7,7.9
2001,8,8.1,11.5,13.2,16.1,21.8,24.1,24.9,20.1,16.7,8.6,5.2
2002,6.7,8.7,10.4,12,15.3,21.4,23.9,22.8,20,15.5,11,8.7
2003,6.5,6.4,9.8,12.2,16.5,24,25.6,25.9,20.6,14.9,10.7,7.1
2004,8.2,7.1,8.6,11.4,14.8,22.1,24.7,25.1,21.1,16.2,9.6,7.1
2005,4.8,4.9,8.5,11.9,16.4,21.9,24.6,23.2,19.4,15.4,9.1,6
2006,5.4,6.4,10.9,13.1,16.9,20.5,25.3,23.2,20.2,16.5,11.7,6.7
2007,6.2,9.4,10,12.1,16.8,20.8,24,23.6,19.8,14.6,9.1,6.8
2008,7.4,8.3,10.5,13.1,15.1,20.1,24.2,24.4,19.9,14.4,8.6,5.5
2009,5.8,6.7,9.3,11.5,16.7,21.6,24.7,24.9,19.8,16.2,12.2,6.9
