1901,4.7,9.3,10.8,12.5,13.7,18.1,19.5,19.8,18.5,15.9,11.4,8.1
1902,5.3,8.5,8.4,11.9,16.3,18.4,20.5,20.6,20.6,17.4,10.6,6.7
1903,5.1,6,8,12.4,16.2,17.1,18.7,19.9,18,15.8,10.6,8
1904,5.5,7.7,9.1,11.4,15.3,18.5,21.1,20.3,18.8,17.9,10.6,5.9
1905,4.5,4.7,8.1,13,17.2,18.9,21.4,20.8,19.1,17.9,13.5,6.4
1906,6.2,6.7,9,12.9,15.9,19.6,20.8,20.4,18.3,16.6,12.3,8.7
1907,5.6,6.6,6.6,12.6,16.4,18.7,20.7,20.9,17.9,16,10.8,7.3
1908,6.2,6.3,9.2,12.1,17.2,18.1,19.7,19.8,17.5,15,10,5.8
1909,5.6,6.5,10.4,10.7,18.7,19,20.8,21,18.9,16.2,12.6,8.8
1910,5.5,7.3,6.9,13.9,17.3,18.5,20.7,20.9,18.6,15.2,10.9,7.2
1911,5.6,4.7,8.4,12.3,16.8,18.6,19.9,20.3,18.3,16.3,12.2,7.6
1912,6,7.6,8.8,12.3,15,18.9,19.9,20.5,18.3,16.5,12.1,7.2
1913,6.3,6.3,8,12.9,15.1,17.4,19.8,20,18.8,16.4,10.7,6.6
1914,6.9,6.9,10.3,10.1,16.6,18.9,20.3,21.2,18.6,15.9,12,7.8
1915,7.5,8,10,12.1,16.1,20.3,21.2,21,17.9,17.1,12.5,9.1
1916,5,7.2,11.5,13.1,17.5,21.8,22.1,20.5,18.1,14.7,13.4,9.2
1917,6.9,7,10.8,13.1,14.9,18.2,20.3,21,17.6,15.5,13.8,7.3
1918,5.9,6.3,9.3,12.9,16.1,18.5,21.5,20.3,19.3,18.7,13.6,7.8
1919,7.5,8.9,11.8,12.2,14.1,17.5,20.9,19.8,18.7,18,13.5,7.6
1920,6.4,4.3,8.8,13.6,15.9,19.1,20.7,22.1,18,16.4,11.2,7.1
1921,6.4,5.6,7.5,12.6,16.1,18.5,20.9,21.9,18.4,15.8,11.7,7.3
1922,6.5,7.3,9.9,12.9,15.9,18.7,21.2,21.1,19.3,17.5,13.1,6.5
1923,6.9,7.2,8.2,12.2,17,20.3,20.2,20.8,18.5,15.8,12.9,8.6
1924,5.8,8.3,9.7,13.5,16,19.5,21.5,21.3,19.4,16.8,11.7,7.8
1925,4.3,6.8,11,11.6,16.9,19.2,21,20.5,18.6,17.5,14.1,8.8
1926,6.3,7.2,8.5,13.8,18.2,20.6,20.1,19.4,17.9,16.3,13,7.7
1927,6.4,4.8,9.5,12.1,17.8,19.9,21.9,21.7,19.2,18.6,13.6,9.3
1928,8.4,6.6,8.4,15.1,18.7,19,20.8,22,19.5,16,12.7,7.8
1929,5.6,5.8,8,11.3,19.3,19.8,20.3,20.7,19.8,15.8,12.5,7
1930,6,6.6,9.5,14.2,16.8,20,21.5,21.3,19.4,17,12.2,10.1
1931,7.1,7.2,11,13.2,16.7,19,21.6,21.7,19.9,16.8,11.4,7.8
1932,6.1,7.1,10,12.1,15.9,19.6,21.8,20.9,19.1,18.3,12.8,7.9
1933,6.4,8.8,9.5,10.6,16.6,21,20.1,20.1,17.5,15.3,15,9.4
1934,6.7,5,10.8,13.4,17.6,20.1,20.7,21.2,18.6,17.2,13.5,8.3
1935,7.2,7.3,10.1,13.2,18.5,20,20.4,20.5,19,17.7,11.3,8.3
1936,7.8,8.5,10.9,14,17.1,18.6,21.6,20.9,17.7,18.8,13.2,6.3
1937,4.8,8,10.3,13.6,16.6,18.5,21.2,21.2,19.9,17.3,13,8.7
1938,6.7,5.8,7.2,12.1,16.1,17.9,21.6,21.7,19,16.4,11.1,8.2
1939,6.5,6.6,9,12.5,19.2,19.4,21.3,21.1,20.3,18.3,12,8.5
1940,6.7,7.3,8.9,13.3,16.9,20.4,21.3,19.7,18.7,17.9,12.1,7.1
1941,8.1,9.6,9.6,13.4,19.4,19.2,21.1,21.2,18.2,15.3,13.1,6.9
1942,6,8,10,13.9,17.5,20.4,20.7,20.5,18.1,17.2,12.8,8.4
1943,6.3,6.2,7.9,10,16.1,17.6,21,21.2,19.4,19,14.8,9.7
1944,5.5,6.9,9.5,13.1,14.9,20.7,20.5,20.9,18.8,17.5,11.9,8
1945,6,6.5,6.9,10.8,16.8,18.1,20.5,21.8,19.3,16.4,12.2,6.5
1946,7.1,6.8,8.9,12.7,16.7,18.7,20.2,21.1,20.2,17.5,14.1,8.1
1947,6.5,8.2,10.7,12.9,17,18.7,20.7,21.1,18.9,16.8,12.3,9.2
1948,7.5,7.6,7.1,11.5,16.3,19.3,20,20.2,18.8,16.3,12.2,6.8
1949,5.4,5.5,8.9,9.3,17.3,18.3,19.9,20.2,17.8,15.9,13.2,8.6
1950,6,6.2,9.1,13.9,16.2,18.5,20.1,20.9,19.2,16.4,12.2,9
1951,6.2,7.2,10.4,12.1,17.7,18.8,20.1,21.2,20.4,18.5,11.3,9.2
1952,6.4,7.6,7.1,12.6,16.4,17.9,20.7,22.1,20.6,17.6,11.7,9
1953,5.3,7.3,6.4,12.3,17.3,19.3,21.6,21.1,18.2,16.5,10.4,6.8
1954,4.6,6.6,9.7,11.7,17.4,18.6,20.3,21.3,18.1,16.1,12.5,7.4
1955,7.4,9.4,9.6,12.9,15.9,19.4,20.9,20.2,19.9,17.3,12.1,8
1956,6.7,8.1,7.9,11.8,14.4,19.3,20.9,21.9,19.9,15.2,11.7,7.4
1957,4.1,6.1,8.3,11.6,16.5,19,20.4,21,19.7,17.6,13,7.3
1958,6,6.9,10.8,13.2,15.3,18.8,20.5,20.8,18.1,15.6,12.6,9.2
1959,5.5,3.7,7.9,11.8,16.4,18.3,20.1,20.2,17.3,14.4,11.6,7.4
1960,6.3,6.6,9.8,13.5,16.9,17.6,19.8,20.5,19,19,12.8,11.2
1961,7.2,5.5,6.7,12.5,16.8,21,20.2,21.1,17.3,15.1,11.5,7.6
1962,7.4,6,11.4,12.1,16.5,19.7,20.7,22,19.6,17.6,14.7,7.5
1963,7.4,8.2,8.5,13.8,17.1,19.5,21.3,21.6,19.8,18.3,12.4,8.4
1964,5.3,5.9,10.1,11.7,15.3,18.7,19.9,20.6,17.8,17.1,11.7,8.4
1965,7.1,7.3,10.1,12.6,15.4,19.4,20.3,21,18.5,15.8,11.1,7.1
1966,6.1,7.7,9.4,13.3,16.7,19.7,20.4,21.4,19.7,18,15,8
1967,4.9,6.2,6.9,12.4,15.7,19.3,20.4,21.7,19,16.2,12,8.1
1968,5.5,6.7,8.4,13.2,17.9,21.2,21.3,21,18.5,15.2,11.4,8.1
1969,5.9,9.8,12.7,11.4,16.4,20.9,19.6,20.7,21,18.1,12.6,8
1970,8.1,7.7,10.4,13.2,17,18.1,20.8,20.7,19.6,15.3,12.4,6.7
1971,8.7,7.1,9.6,11.5,17.4,18.5,19.9,21.2,19.2,15.4,10.9,7.5
1972,6.3,6.5,9.4,14.3,16.3,18.7,20.3,21.5,20.1,17,11.7,8.7
1973,6,8.6,8.5,11.7,15.7,18.7,21.2,20.3,19.1,17,10.5,8.3
1974,5.5,7.1,10.9,13.9,15.6,18.7,20.4,20.7,19.4,18,11.4,7.1
1975,5.5,7.2,9.8,14.5,16.2,19.3,20.5,20.5,18.7,16.4,11.9,7.8
1976,5.7,5.7,9.6,12.9,17.2,18.5,19.9,19.5,18.9,17.4,13.7,7.9
1977,6.8,8.7,8.3,12.6,17.6,19.8,20.8,21.7,19.2,15,12.2,6.6
1978,6.2,8.5,9.8,13.3,18.2,19.1,21.3,19,18.9,18,9.9,8.3
1979,6.6,8.6,11,14.2,16.6,20.5,20.6,21,19.1,17.5,13.2,7.3
1980,5.9,6.8,10.1,13,17.1,19.2,21,21.2,18.6,16.9,13.1,7.9
1981,4.8,6.7,10.4,14.3,15.9,19.7,20.6,20.9,18.6,17.8,10.6,7.8
1982,7.7,6.3,8.1,14.3,15.2,19.3,20.3,21,19.4,17.7,10.2,6.5
1983,4.5,5.5,7.3,11.1,16.4,19.2,20.9,20.2,18.3,14.5,12.4,7
1984,5.7,6.8,9.5,11.8,17.8,17.4,19.3,19.5,19,16.7,11.2,7.3
1985,8.2,6.1,9.6,12.6,17.8,19.3,19.6,21.1,18.2,14.3,13,8.4
1986,6.6,8.3,10.3,13.6,14.1,19.8,20.8,21.5,20.5,15.7,10.6,6.2
1987,6.4,7.9,7.7,10.2,16.5,18.8,21.1,21,19.1,15.4,11,8.4
1988,7,7.3,9.2,13.3,17.9,20.8,22,21.8,19.5,15.2,9.2,7.3
1989,4.7,5.3,9.2,15,17,19.1,20.6,21.5,19.1,15.7,11.4,7.5
1990,6.5,6.3,8.5,13.8,15.6,18.2,21,20,18.3,16.6,13.8,9.4
1991,6,7.5,10.9,14.4,17.3,19.1,20.6,21.2,19,18,12.1,6.1
1992,6.2,5,8.6,11.8,16.2,19,20.7,21.8,18.5,17.5,12.5,7.2
1993,6.2,5.5,8.1,12.7,16,19.1,21.1,21.5,19.8,18.5,13.9,10.6
1994,8.9,7.4,9.2,14.2,17.2,18.6,21.1,21.7,20.5,19.1,12,6.2
1995,6.2,7.5,10.1,12.1,16.3,21.1,21.8,21.4,20.5,16.8,10.2,7.4
1996,7.3,8.1,9.5,11.4,17.9,18.8,22,21.5,20.5,16.1,12.3,8
1997,7.9,5.4,7.6,11.5,16.6,20.2,21.5,21.1,18.9,16.8,13.1,8.2
1998,7.2,8.3,8.7,15,18.2,19.2,21.9,22.6,21.2,16.8,13.8,8.4
1999,7.7,8.4,10.3,12.9,17.9,19.8,21.9,21.3,20.6,18.1,13.4,8.4
2000,6.2,6.5,8.8,14.5,17.3,19.7,22.4,21.3,20.1,16.2,12.8,8.7
2001,7.6,7.5,12.5,14.1,18,19.4,21.4,22.6,20.9,17.2,12.1,7.9
2002,5.7,8.6,11.2,13.3,17.2,18.7,23.3,22.7,21.7,17.3,13.4,8.9
2003,8.6,6.5,8,13.8,19.1,20.6,22,22.4,20.1,17.9,13.3,8.3
2004,7.3,7.9,11.1,13.2,17.6,18.7,22.2,21.6,20,18.2,12.8,8.3
2005,7.6,7.9,10.5,13.2,16.8,18.7,21.9,22.1,20.1,16.8,12.1,9.7
2006,7.5,8.4,10.4,13.8,16.9,20.4,21.4,22.7,20.9,17.6,11.3,7.4
2007,6.4,8,10.3,13,18.5,20.4,22.9,22.5,19.8,18.2,13.5,8.2
2008,5.3,6.7,12.2,14.1,17.7,21.5,22,23.4,21.2,17.5,14.1,10.3
2009,8.6,8.9,9.8,14.2,17.2,21.5,23,22.2,21.3,19,13.1,9.7
