1901,6.8,5.5,7.3,11.3,15.3,16.3,20,18.3,15.9,12.4,8.6,6.7
1902,7.7,5.4,9.4,10.6,12.9,15.3,17.8,17.8,16,12.7,9.7,7.9
1903,7.2,9.3,9.2,10,13.9,16.3,18,16.8,15.5,11.9,9.2,6
1904,7.1,6.1,7.5,11.5,13.3,16.5,18.4,17.8,15.6,13.3,8.9,8.2
1905,7.7,8,9.3,10.7,14.9,17.4,20,17,15.2,10.8,7.7,8.9
1906,7.8,6.5,9,10.8,12.6,17.4,18.5,18.6,17.5,13.2,9.7,6.8
1907,6.7,6.5,10.1,10.6,12.7,14.9,18.5,17.4,17.3,11.4,8.6,7.4
1908,6.8,8.7,7.9,9.9,14.7,16.7,18.7,18.1,15.1,14.5,11.3,8.8
1909,7.6,7.2,7.1,11.6,14.3,16.2,18,18.8,15.5,13,7.7,6.8
1910,6.8,7.5,9.2,10,14.1,16.3,18,17.2,16,12.9,7.7,8.2
1911,7.1,7.7,8.4,10.6,15.5,17.8,20.4,20.2,16.7,12.7,8.1,8
1912,7.4,7.8,9.6,12.2,14.8,15.8,18.1,15.7,14.8,11.9,9.1,9.5
1913,7.3,7.4,8.4,10.7,13.1,15.9,18.1,19.4,16.6,13.8,10.5,7.7
1914,6.9,8.9,9,11.7,14.1,17.8,18.2,18.9,16.6,13.3,10,6.7
1915,6.3,6.6,8.5,11.3,14.1,17.3,17.5,18.2,17,12.9,7.4,7.5
1916,6.6,6.1,6.9,10,14.2,16.3,19,18.8,16,11.4,9.9,5.7
1917,4.3,5.4,7.2,9.5,14.5,16.7,19.7,18,16.4,10.8,10.4,6.1
1918,6.7,9.1,9.1,10.7,15.1,16.9,18.6,18.4,14.4,11.2,9.5,9.4
1919,6,6.1,7.3,10.8,14.9,16.9,18.5,19.4,15.8,12.2,6.4,8.7
1920,8.1,9.1,9.2,10.5,13.7,16.9,16.9,17.3,16.3,13.9,11,7.4
1921,9.8,8,10,12,14.2,18.8,21.8,17.7,16.8,14.9,10.6,9.9
1922,7.7,8.4,8.8,9.5,14.8,16.5,16.4,16.4,15.3,11.9,9.3,8
1923,8.5,8.6,9.8,10.2,12.6,16.5,19.3,17.4,14.8,12.1,6.9,8
1924,8.2,7,8,10.6,13.4,16.4,17.3,17,14.9,12.7,10,9.6
1925,8.6,7.5,8.7,10.4,12.8,18.1,18.4,18.6,15,13.8,8,6.8
1926,8.3,9.1,9.5,12,13.5,16.3,20.1,19.5,17.5,12.1,8.4,7.3
1927,7.7,8.6,9.9,11.4,14.9,15.5,18.8,18.1,15.2,13.7,9.3,6.4
1928,8.8,9.2,8.5,10.7,14.7,15.9,18.2,18.2,16.1,13.1,10.5,7.9
1929,6.2,7.3,9.9,11.1,14.4,16.5,19,17.7,17.9,12.6,9.9,8.5
1930,7.9,5.4,8.8,11.2,14.4,17.6,18.1,17.1,16.3,12.8,9.5,7.7
1931,7,7.2,8.3,10.9,13.6,16.9,17.5,17.9,15.4,12.6,10.3,8.7
1932,9.3,6.8,8.7,10,13.1,18,18.4,19.3,16,11.6,10,8.4
1933,6.4,7.2,10.4,12,14.9,17.8,20,19.9,18.5,12.8,8.7,6.4
1934,8.2,7,8.5,10.2,13.5,17.9,21.1,17.6,16.2,12.6,8.6,10.1
1935,7.6,8.2,9.6,10.9,14.1,16.4,19.6,19.2,16.3,12.2,8.9,6.2
1936,6.2,7,9.4,10,14.3,17.4,17.7,19,17.1,13.5,9.3,8.4
1937,8,7.9,6.8,11.9,14.6,16.8,18.3,19.3,16,12.4,8.7,6.3
1938,8.1,7.9,11.3,11.9,13.6,16.3,17.2,18.4,16.2,12.6,10.8,7.5
1939,6.9,8.6,9.2,11.5,15,17.9,17.8,19.1,16.9,11.7,11.3,6.9
1940,5.8,8,9.9,12,15.6,19.9,17.9,19.5,16.6,12.8,9.8,7.8
1941,5.1,6.8,8.8,10.1,13.4,17.6,18.7,18,18.6,14.1,10.4,9
1942,7.5,6.5,10.5,13,14.5,17.1,18.6,18.9,16.1,12.5,8.6,9.7
1943,8.7,8.9,10.7,13.3,14.8,17.2,19.6,18.3,16,13.4,9.8,8.1
1944,9.3,7.4,9.6,13.5,14.8,17.1,19,20,15.8,11.3,9.4,7.8
1945,5.2,9.5,11.2,12.7,14.8,17.1,18.7,19.3,17.4,15.4,11.3,9.9
1946,8.1,8.8,9.4,12.6,15,15.7,18,16.8,15.4,13.8,10.5,7.7
1947,6.9,3.3,7.9,11.3,14.3,16.8,17.6,21.7,17.3,14.8,10.4,8
1948,7.8,7.8,11.9,12.3,14.9,15.7,17.8,18,15.7,13.2,11.9,9.2
1949,9,9.6,10.5,12.1,14.6,18.7,20.3,19.3,18.9,14.4,9.9,8.7
1950,8.4,8.3,11.1,10.9,15.5,18,18.5,17.8,14.8,12.3,8.8,5.3
1951,7,6.1,8,10.3,13.7,17.1,19.6,17.4,16.3,14,10.6,8.4
1952,6.5,7.2,9.8,12,16.2,17,19.5,18.8,15,12.7,8.6,7.4
1953,7.5,7.7,10,11.2,15.8,17.5,18.3,18.3,16.4,12.8,10.4,10
1954,7.4,7.2,9.5,12.2,14.4,16.1,17,17.1,15.1,13.8,9.9,9
1955,6.9,5.2,7.6,13.3,13.1,16.1,21.9,21.9,17.4,12.9,10.8,9.6
1956,7.6,5.4,10.2,12.1,15.5,16.9,18.4,16.9,15.9,13,9.5,8.9
1957,8.4,8.1,11.5,12.6,14.9,19,18.7,18.3,15,13,9.1,8.1
1958,7.4,8.5,7.6,11.2,13.7,16,18.1,17.6,17.2,13,10.4,8
1959,6.8,9.4,10.3,12.2,16.4,18.2,19.5,20.1,19.1,15.1,9.9,8.6
1960,7.7,7,9.8,12.9,16.2,18.5,17.7,18.3,15.8,12.9,9.7,6.7
1961,7.5,9.4,11.2,12.4,15,17,18.3,18.4,17,12.7,9,7.1
1962,7.7,7.8,7.2,11.1,13.6,16.4,17.6,17.4,15.3,13.4,8.6,7.3
1963,4.4,4.6,9.2,10.8,13.5,17.2,17.5,17.3,15.6,13.5,10.3,6.8
1964,7.7,7.5,8.2,11.4,15,15.9,18.2,18.2,17.1,12.7,10.7,7.7
1965,6.3,5.8,9.2,11.9,14.1,16.9,17.5,17.6,14.7,13.5,8.1,7.9
1966,6.5,8.5,10.2,10.3,14.2,16.9,18.6,17.8,16.8,12.2,8.3,9.1
1967,7.2,8,9.5,12.5,12.2,17.6,18.2,17.6,15.6,12.2,8.7,7.7
1968,8,5.8,9.7,10.5,13.3,17.4,18.5,19.7,16.6,14,10.1,7.6
1969,7.4,4.6,7.7,11.5,13.7,17,19.4,18.8,16.8,15.3,8.2,7.6
1970,7.4,6.7,8.7,10.3,15,19.1,18.4,17.9,15.5,13,9.8,7.2
1971,7.7,8,8.7,11,13.9,15.9,19.8,18.2,18,14.6,10.2,8.7
1972,7.1,7.6,9,11.5,13.1,14.8,18.7,17.8,16.3,13.3,9.2,9
1973,8.3,7.6,10,11,13.5,17.5,18.6,19,16.8,12.7,10.2,8.6
1974,9.1,8.1,8.6,12.1,13.6,16.3,18.4,17.8,14.3,10.8,8.9,9.8
1975,8.8,8,8.6,11.6,14.4,18.7,19.7,20,16,12.7,9.8,7.6
1976,8.2,7.9,9.1,11.9,13.9,18.2,19.4,20.6,16.2,12.8,9.5,5.9
1977,5.8,7.7,9.5,10.8,14.3,16,19.4,19.2,15.8,13.5,8.4,7.9
1978,6.3,6.1,9.4,10.3,15.3,16.6,17.6,17.2,17,14.2,11.4,7.8
1979,4.9,5.7,7.7,10.5,12,16.1,19.1,17.5,15.9,13.3,10.2,7.8
1980,6.1,8.4,8.2,12.1,14.4,15.8,16.6,17.6,16.1,11.5,8.9,8.6
1981,8.2,7.4,10.2,11.3,13.3,16,17.9,19.8,17,10.8,10.3,5.8
1982,6.9,8.8,9.6,12.4,13.9,17,19.2,18.7,16.4,12.6,9.3,7.6
1983,8.8,5.3,9.6,10,12.4,16.8,22,20.7,15.5,12.8,10,9.3
1984,7.1,8.2,8,12.3,14.8,18.1,20.6,20.5,16.4,13.5,9.4,8.8
1985,5.3,7.1,8.7,12,13.7,15.9,18,16.3,16.5,13.3,7.9,9
1986,7.1,2.8,8.9,9,12.6,16.4,18,15.8,15.3,13.6,10.4,8.7
1987,5.4,7.2,8.7,12.7,14.4,15.6,19.2,18.9,16.4,12,9.2,8.7
1988,7.8,7.8,9.8,11.5,15.1,18.2,17,17.1,14.7,12.3,9.8,10
1989,9.4,9.1,10.5,10.3,16.4,17.8,22.4,19.4,16.5,14.1,9.4,8.2
1990,8.9,9.2,10.8,12,16.5,16.5,19.8,19.8,16.7,13.1,9.6,7.3
1991,6.9,6.6,10.6,11,15.9,15.9,18.2,20,18.3,12.1,9.1,8.6
1992,7.6,9,10.3,11.3,15.8,18.4,18.9,17.7,14.9,10.7,10.1,7.7
1993,9.2,8.9,9.7,12.7,13.9,16.9,18.3,18.2,15.5,11.1,9,8.3
1994,8.2,7.4,10.6,10.9,13.2,16.5,17.9,17.5,15.2,13.3,11.5,9.6
1995,7.9,9,8.7,13,13.8,18.5,20.1,21.3,17.1,14.8,10.3,6.8
1996,7.7,7.7,7.6,11.8,12.9,17.4,19.1,18.3,17.3,13.4,9,6.5
1997,5.9,9.4,11.4,13.7,14.9,16.1,19.4,19.2,16.6,14.1,10.5,9
1998,7.9,9.9,10.9,10.8,15.9,16.1,17.8,19.4,16.9,13.7,9.7,9
1999,8.3,9,10.2,12.3,14.9,16.4,20.1,18.4,17.4,13.6,10.2,7.8
2000,7.3,9.6,11.1,10.5,15.5,16.9,19,19.5,17,12.6,8.7,7.6
2001,6.6,8.1,8.8,11.5,16.2,17.1,19,18.8,17.1,14.8,10.9,7.7
2002,9.5,9.9,10.6,12.1,14.4,15.9,18,18.7,16.8,13,10.6,8
2003,7.5,7.6,10.5,12.7,14.2,17.3,19.1,20.2,17.3,12.5,10.6,8
2004,8.1,8,10,11.9,15.4,18.6,18.2,18.9,16.8,12,10.6,8.7
2005,8.9,7.3,10,11.7,13.9,17.8,19.4,19.2,16.8,13.6,9.5,8.1
2006,7.8,7.3,8.5,12,14.3,18.8,20.7,19.2,18,14.2,10.3,8.7
2007,7.8,9,10.2,15.2,15.3,17.2,17.8,18.4,17.5,14.4,10.7,9.2
2008,8.7,9.3,9.4,11.3,16.2,17.1,18.6,17.6,15.9,12.2,9.2,7.6
2009,7.1,7.7,10.2,11.5,14.1,18,18.1,17.8,16.4,13.8,9.1,6.4
