1901,5,7.8,11.5,15,16.2,19.1,19.2,19,17.6,15.6,10.6,7.2
1902,7.1,8.3,12.7,13.4,15.9,18.4,18.6,18.9,17.6,14.5,10.2,7.2
1903,5.4,7.5,11,14.6,16.6,18.2,19.7,18.7,18.3,16.2,11.4,7.4
1904,6.2,8,12.2,13.9,15.8,18.9,19,19.2,18.1,15.1,10.2,7.2
1905,5.3,5.8,10.1,12.3,16.2,18.8,19.3,18.4,18,15.5,11.4,7.7
1906,5.7,7.3,10.6,14.7,16.8,18.7,19.7,18.4,18.9,15.2,11.5,7.9
1907,7.1,7.5,9.8,12.9,16.2,18.2,19,19.5,17.9,15.5,10.7,7.2
1908,5.5,7.7,11.9,16.1,16.5,19.2,19.5,19.3,18.1,15.4,10.6,6.9
1909,6.3,7.5,13.4,14,16.4,18.3,19.5,18.8,19.1,16.1,12.2,8.1
1910,6.2,8.1,11.5,14,16,18.3,18.2,19,18.5,15.2,11,7.4
1911,7.3,7.4,11,14.2,16,18.7,19,18.8,17.7,14.6,10.2,6.7
1912,6.5,8.5,10.6,12.3,16.4,18.5,18.7,18.8,18,15.1,10.6,7.5
1913,6.2,7.9,9.9,14.3,15.5,18,19.1,19.1,18.1,15.2,10,7.1
1914,6.3,8,11.4,12.5,16.7,19.2,19.5,18.8,17.6,14,10.6,8.1
1915,7.3,8,11.3,14,16.1,18.2,19.1,19.1,17.9,17.3,12.7,8
1916,6.3,8,13.2,14,16.7,19.1,18.5,19,18.1,15.1,11.6,7.1
1917,5.8,7.7,10.8,13.6,16.8,18.5,19,19.3,17.9,15,11.6,7.6
1918,5.5,7.5,11.7,13.8,17.8,18.1,18.6,18.4,18.1,15.2,10.7,6.8
1919,6.8,7.4,12.9,13.7,16.2,19.3,19.2,19.7,17.6,15.4,11.8,7.9
1920,6.9,7.5,11,13.5,15.6,18.3,19.7,18.9,17.8,15.8,11.4,9
1921,6.7,7.8,12.8,14.1,16.9,17.7,18.9,19.3,18.1,14.1,10.9,7.4
1922,6.8,8.7,13.2,16.4,17.5,18.4,19.1,19.1,18.1,15.2,11.3,7.7
1923,6.7,7.7,12.6,14.8,16.1,18.5,19.1,19.5,18,15,11.5,7.9
1924,6.3,7.9,13.5,15.5,15.9,19,19.1,18.9,17.5,16.2,11.1,8.1
1925,5.2,6.8,12,14.2,15.1,18.7,19,19.2,17.3,14.5,10.8,6.4
1926,6.1,8.1,10.7,13.4,16.2,18.3,18.9,19,18.3,15.6,10,8
1927,5.8,7,9.8,13.9,15.9,18.2,19.3,18.9,17.3,15.3,10.5,7.7
1928,6,8.7,12.1,14.8,16.2,18.8,19.4,18.8,18.9,15.1,10.1,7.2
1929,5.5,7.2,12.6,14.1,16,18.2,19.1,19,18.1,14.9,10.8,7.1
1930,5.5,8.1,11.6,13.9,16.8,17.4,19.3,19.1,18.1,14.9,11.1,7.6
1931,7.3,8.6,12,14.3,15.8,18.5,18.7,19.8,17.1,15.9,10.6,8.1
1932,6.5,6.6,12.3,14.7,15.2,18.2,19.1,19.1,18.3,15.8,12.4,8.1
1933,5.5,8.7,13.1,13.8,15.9,18.8,19.2,19.1,18.2,15.8,11.3,8.2
1934,6.3,8.6,12.2,14.7,15.5,17.6,19,19.1,19,14.9,10.8,7.9
1935,6.6,8.9,13,14.7,17.8,19.6,19.5,18.6,18.7,15.8,11.9,8.2
1936,6.3,7.3,12.8,15.4,16.9,18.1,19.3,19.5,18.2,14.8,12.7,8.6
1937,6.2,8.1,12.2,15.8,16.5,19.5,20.3,18.9,19.1,16,11.6,8.9
1938,7.7,7.1,13.5,16.2,16.4,19.3,18.8,19.8,19.4,16.1,9.8,8.1
1939,7.2,8.8,12,16.5,17.1,18.5,18.9,19.4,18,15.2,11.6,8.5
1940,6.6,8.3,9.8,14.5,16.6,18.9,19.2,19.5,18,15.9,11.5,8.4
1941,6.5,8.8,13.4,14.7,16.6,17.7,19.2,19.3,18.3,14.6,10.9,9.3
1942,7,9,12.6,14.2,16.6,19.5,19.5,19.2,17.9,16,12.2,8.5
1943,7.8,8.3,11.2,12.9,16.8,19,18.5,19.3,18.6,16,13.1,9
1944,6.3,7.8,12.6,13.4,17.7,20.2,19.3,20,18.7,16.5,12,10.1
1945,6.9,7.1,13,15.3,16.2,19.5,19.6,19.6,19.1,15.4,11.1,7.6
1946,7.2,9.4,12.4,13.2,16.4,19,19.1,20.3,18.8,15.1,12.4,9
1947,6.4,8.5,12.2,16,16.4,19.5,20.2,19.4,18.9,15.6,11.7,9.5
1948,5.6,8.1,11.7,15,16.3,19.3,19,19.5,19,15,12.8,8
1949,7.2,8.4,12.4,12.9,16.5,18.8,19.1,19.2,18,16.2,11.4,6.6
1950,7,8.1,11.9,15.1,17.3,17.9,19.3,18.6,18.4,15.4,11.3,8.3
1951,6.4,8.8,12.9,13.9,16.5,18.5,18.4,19.5,17.7,15.9,11.4,7.8
1952,7,9.4,10.6,15.2,15.9,19.1,19.2,18.8,17.7,16.3,12,8.3
1953,6.2,8.7,12.8,14.8,17,18.5,18.6,19.8,17.7,15.2,10.9,9
1954,6,9.9,12.9,17.1,17.9,18.2,18.5,18.4,18.3,15.1,11,8.2
1955,6.5,8.7,13,14.2,18.1,17.9,18.4,18.1,18.3,16.6,11.2,7.1
1956,7.2,8.3,12.5,16,18.1,18.7,18.2,18.6,17.8,16,12.2,7.6
1957,6.5,7.7,11.1,14.9,16.3,18.3,19.4,19,18.4,15,11.9,9.1
1958,7.4,7.7,12.1,15.2,16.3,19.1,19.7,19,18.5,17,12.8,9
1959,6.7,7.3,12.4,15.8,16.8,19,19.2,19,17.6,15.8,12.2,9
1960,5.8,10.1,11.4,15.9,17.3,19,18.8,19.2,17.7,15.8,11.5,9.5
1961,7.7,8.2,12.1,15.2,17,18.9,19.3,19.7,18.4,16.1,10.3,6.1
1962,5.9,7.6,11.7,15.2,15.7,18.6,19.5,18.6,18.1,15.1,11.8,7.9
1963,6,8.3,11.4,13.3,15.6,18.3,19.1,19.1,18,15.6,10.9,8.2
1964,5.9,7.7,12.4,14.7,15.5,18.5,18.5,19.1,18.1,17,11.9,8.2
1965,6.3,6.9,9.9,13.8,16.4,18.2,18.5,18.1,17.4,14.5,10,8.3
1966,4.1,8.8,12.5,14.6,17.5,18.3,19.2,19.2,17.1,14,12.3,8
1967,6.6,8.9,10.6,13.4,16,18.2,18.7,18.8,17.6,14,9,8
1968,5.1,6.9,11.9,13.7,16.2,17.9,18.5,19,18.4,13.7,9.6,6.4
1969,5.6,8.4,12.9,14.5,17,18.6,18.9,18.7,17.9,14.6,12.3,8.5
1970,5.7,7.1,10.9,14.9,17.3,18.8,19.2,19.1,18.2,15.6,10.8,8.2
1971,6.1,7.7,11.1,14.1,15.8,18.9,18.5,18.2,17.8,15.7,10.8,8.3
1972,8.1,7.8,12.8,13.9,17.1,18.3,19.4,18.4,17.2,15.5,10.6,8.2
1973,7.8,8.8,11.2,15.5,16.8,18.5,19,18.9,18.1,14.2,10.5,7.9
1974,6,9.2,12.4,15.5,16.5,18.3,18.5,18.8,17.3,17.7,11.8,7
1975,6,8.1,12.2,15,16.4,18.8,18.2,18.7,17.7,17.4,11.6,7.3
1976,5.8,9.2,13.1,14.9,16.3,18,18.5,18.4,17.5,15.3,13.7,8.3
1977,7,9.4,13.4,13.8,15,17.5,19.3,18.8,18.2,14.8,12.5,7.5
1978,4.3,7.4,10.4,14,16.9,18.6,18.7,18.8,17.7,16.3,12,8.1
1979,6.6,7.4,11.9,15.4,17.4,19,18.7,19.1,17.1,15.5,13.6,7.8
1980,5.7,8.6,11.5,15.3,15.9,18.9,19.2,19.2,18.4,15,11.7,9.4
1981,5.2,9.2,11.6,14.2,16.3,19.1,19.2,19.4,17.9,16.3,11.5,7.3
1982,7.4,7.6,11.2,14.2,16.3,18.4,19.3,19,18,14.4,11.3,8.6
1983,4.7,6,11.4,13.2,15.6,18.8,19.4,19.2,18.2,15.7,10.9,6.8
1984,5.7,8.5,13.5,14.9,16.9,18.9,18.5,18.8,16.9,16.9,10.7,9.1
1985,6.2,8.7,14.3,15.3,16.3,18.7,18,19.5,18,14.9,10.3,8.9
1986,7.2,8.5,12.3,13.7,15.3,19,18.7,19,17.4,14.4,12,7.2
1987,6.1,8.8,11.8,14.2,16.3,19.2,19,18.7,18.3,14.3,10,8.5
1988,8.1,10.2,12.8,15.1,16.6,18.3,19.3,19.1,18.2,15.7,11.3,8.9
1989,6.5,7.7,12.3,14.4,17,18.4,18.7,18.8,18.4,16.2,11.2,7
1990,9.6,7.9,10.3,13.1,17,19.5,19.1,19.1,18.3,15.1,12.6,8.9
1991,4.8,9.2,12.8,14.8,16,18.5,19.5,19.1,17.9,15.9,10.8,7.3
1992,6.7,6.8,13.5,15.1,15.2,18.1,18.2,18.9,17.9,15.5,10.9,6.9
1993,7,9.2,10.8,13.8,16.1,18.1,19.3,19.3,17.6,16.4,12.4,9.5
1994,7.1,7.1,12.7,14,17,19.1,19.3,19.2,18.8,15.4,10.5,7.4
1995,4.5,7.3,13.1,14.2,18.2,19.2,18.9,19,18,16.4,8.8,9.1
1996,9.1,9.1,12.9,15.2,16.7,18.1,19.3,19.2,17.1,15.9,11.8,7.2
1997,6.5,7.5,12.1,13.5,16.6,17.8,19.8,19.1,17.3,14.3,11.8,8.5
1998,8.5,9.1,10.6,14.6,18.2,19.7,19.2,19.1,19,17.9,13.5,7.6
1999,7.2,10.6,13.7,16.8,17.3,19.5,19,19.1,17.7,16.5,12.9,9.5
2000,6.6,7.5,11.2,14,16.2,19.4,19,18.9,17.6,16.1,12.8,8.6
2001,7.4,9.9,12.3,14.9,17.1,18.8,19.7,19.9,19.2,16.2,12.8,9.9
2002,7.6,9.8,12.8,14.5,16.1,19,19,19.4,18.2,15.9,12.5,9.7
2003,6.3,8.6,11.3,14.9,16.7,18.4,19.5,20.4,19,17,12.8,8.6
2004,7.9,8.8,14.5,14.3,17.4,19,18.4,20.2,18.9,15.1,11.7,9
2005,7,10.1,13.2,15.3,15.9,19.8,20,19.9,18.9,15.9,12.5,8.8
2006,8.1,11.2,13.6,14.5,17.4,19.3,20.1,20.6,18.3,16.3,12.7,9.6
2007,7.7,8.3,13.1,15.4,18.5,19.5,19.9,20.1,18.7,17,13.3,9.7
2008,8.1,7.6,12.9,15.8,17.8,19.3,19.5,19.7,18.4,16.5,12.5,10.1
2009,8.4,10.5,13.1,16.2,17.8,20.1,20.3,20.2,18.9,17.3,13.1,9.6
