1901,3.6,6.6,9.4,13.1,15,17.7,17.6,17.7,17.1,14.8,9.8,5.9
1902,5,6.4,10.2,11.8,14.9,16.4,17.4,17.2,16.9,13.5,8.9,5.5
1903,4,6.1,9.8,13.2,15,16.8,17.8,17,17.4,15.3,10.8,6.1
1904,4.2,5.9,9.9,12.1,14.4,17.4,17.6,17.5,17.5,14.6,9.9,6.1
1905,3.8,4.4,8.8,11.1,15.2,17.4,17.9,17,17.9,14.8,10.2,6.7
1906,5.1,6.1,8.5,12.7,15.3,17.4,18.3,17,18.3,14.8,10.3,6.7
1907,6.1,5.9,8.4,11.5,14.7,16.8,17.1,17.9,17,14.4,10.2,6.5
1908,4.9,6.4,10,14,14.9,17.4,17.3,17.5,17.1,13.9,9.9,5.8
1909,4.6,6.8,10.7,12.1,14.6,16.8,18.4,17.4,18.1,15.8,11.5,7
1910,5.1,6,9.2,12,15.1,16.5,16.8,17.5,17.7,14.5,10.1,5.6
1911,5.4,5.6,8.9,12.4,14.5,17.1,17.3,17.4,17.5,14,9.1,5.4
1912,4.6,6.6,9.7,11.5,15.3,17.3,17.2,17.4,17.1,14.1,10.6,6
1913,5.3,7.8,9.6,12.4,13.6,16.9,17.7,17.5,17,14.4,9.5,5.6
1914,4.6,6.6,9.8,11.6,15.1,17.6,18.2,16.8,17,12.5,9.6,6.7
1915,6.3,6.3,10.2,13,14.6,16.6,17.3,17.3,17,16.4,11.9,6.7
1916,5.2,6.8,10.9,12.5,15.9,17.8,17.6,18.4,18.2,15.9,11.3,6.2
1917,4.5,5.8,9.2,11.8,14.7,17.2,17.8,18.2,17.9,15.5,11.6,6
1918,4.5,6.7,10.2,11.9,15.6,16.4,18.1,18.2,17.4,15.1,9.5,6.5
1919,6.1,7.1,11.2,12.3,14.9,17.8,18,18.7,16.5,14.7,11.2,6.9
1920,6.5,6.1,9.8,11.8,14.4,16.9,18.8,17.4,18.2,15.1,10.3,7.7
1921,6.5,7.2,11,12.8,15.7,16.9,18.5,18.7,18.1,13.6,10.7,6.4
1922,5.8,7.1,11,13.8,15.7,17.8,18.7,18.5,18.5,14.4,11.5,7.2
1923,5.6,6.9,10,13.5,14.8,17.5,18,18.4,17.7,14.5,11.4,7.8
1924,5.5,7,11.3,13.5,14.5,17.8,18.5,18.3,17.2,16,11.3,7
1925,4.4,5.4,9.4,12.5,14.3,17.5,17.7,18.4,16.9,14.3,9.7,7
1926,5.5,6.7,9.6,12.1,14.8,17.3,18.3,18.6,18.3,15.1,10,8.4
1927,5.2,6.1,8.4,12.9,15.4,17.8,18.4,18.3,17.1,14.9,9.9,6.8
1928,5.8,8.3,10.3,13.2,14.9,17.5,18.3,18.5,17.7,14.5,8.9,7
1929,5.7,6.5,10.6,12.7,15.3,17.8,18.3,18.2,17.7,15.1,9.6,6
1930,3.7,6.9,10,12.7,15.8,17,18,18.1,17.8,14.4,11.4,6.4
1931,5.6,7.5,9.9,13.3,15,17,18,19,16.7,16.1,9.5,7.3
1932,4.9,5,10,12.8,14.8,17.3,18,18.9,18.2,15.6,12,7.1
1933,4.8,6.8,10.5,12.4,14.7,17.4,18.2,18.2,17.6,15.5,10,6.4
1934,5,7,10.3,13.5,14.9,16.2,18.1,18.4,18.7,15,10.2,5.7
1935,3.7,6.9,10,12.4,15.3,16.3,18.3,17.2,17.2,14.9,10.6,6.3
1936,4.6,6.2,10.8,13.3,16.1,17.1,18.1,18.7,17.4,14.4,10.9,7.3
1937,3.9,7.3,9.2,13.6,15.2,18.1,18.4,18.5,18.1,15.3,9.7,8.2
1938,6.1,5.9,11.5,13.9,15.9,17.7,17.6,18.7,17.9,15.8,8.4,6.8
1939,5.5,6.7,9.9,14.8,15.1,17,18,18.3,17.3,14.3,10.3,6.6
1940,4.1,6.2,8.5,13.4,15,17.1,17.9,18.3,16.8,14.2,10,7
1941,4.6,6.7,11.1,13.4,15.3,17.3,17.9,18.3,17,14.5,8.8,7.3
1942,5.3,7.5,10.4,12.8,15.1,17,18.3,17.2,16.9,14.8,10.8,5.9
1943,6.1,5.1,9.6,12,14.9,17,17.6,16.7,16.8,14.4,9.3,7
1944,6,6.2,10.4,12.3,14.8,16.7,18.4,17.8,16.5,14.9,8.9,6.1
1945,5.2,5.4,9.9,13.3,14.9,17.6,17.8,17.6,17.8,14.8,9.8,6.5
1946,5,8.3,10,12.6,15.3,17.1,17.4,17.5,17,14.6,10.2,7.7
1947,5.3,7,10.6,13.4,15.5,17.2,18.1,18,17.4,14,9.5,7.4
1948,5.4,7.1,9.7,12.4,14.6,17.4,17.5,17.6,17.4,14,11.2,5.7
1949,5.7,6.8,9.4,11.7,14.8,17.1,17.4,17.5,17.1,15.9,9.9,4.7
1950,4.9,6.4,9.4,12.1,14.8,17,17.4,17.5,17.1,15.3,10.8,7
1951,4.2,5.5,10.3,11.9,13.9,17.1,17.4,18.1,16.5,15.2,10.4,7.7
1952,5,7.2,8.9,13,15,17.5,17.8,17.7,17.3,15.9,10.8,6
1953,4.5,6.6,11.8,12.6,14.9,17,18.1,17.8,17,14.4,10.1,7.7
1954,3.1,8,8.9,13.6,15.2,16.7,17.2,17.4,17.3,13.9,8.6,6.8
1955,4.1,4.5,9.7,11.9,15,16.6,17.6,17,17.2,15.3,10.7,4.9
1956,4.1,5.2,11.2,13.3,15.9,17.5,17.4,17.7,17.1,14.5,10.4,6.4
1957,4.6,5.2,9.5,13.6,14.2,16.8,18.4,17.8,17.1,13.5,9,6.2
1958,5.4,5.8,10.2,13.5,14.4,17.7,18.7,17.3,17.4,15.2,8.9,6.5
1959,4.8,5.8,9.8,13.7,14.6,17.2,18.1,18,17,14.2,8.3,5.9
1960,3.8,7.4,9.6,13.8,15.9,17.5,17.5,18.4,17.5,14.1,9.8,7
1961,5.8,5.7,10.5,13.5,15.2,17.4,18.3,18.4,17.7,14.9,8.9,4.6
1962,3.2,6.4,9.4,13.3,14.4,16.4,18.2,17.2,17.6,13.9,8.7,5.5
1963,3.5,6.4,10.2,12.7,14.6,17.2,18.4,18,17.4,14,8.7,7
1964,3.2,5.6,9.7,12,15,16.5,17.2,17.6,16.9,15.3,10.3,5.4
1965,4.2,5.1,8.3,12.5,14.8,16.7,17,16.2,16.4,14.9,8,7
1966,4.3,6.8,9.4,12.5,15.3,16.3,17.5,17.6,17.2,13.7,11.4,7
1967,7,7.6,10,12.3,15.1,16.7,18.1,18.1,17.2,13.9,9.1,7.1
1968,5,5.4,9.8,12.5,14.4,16.9,17.9,17.4,17,14.7,10.1,5.7
1969,4.1,5.7,10.9,12.1,16,17,18.1,16.8,17.7,14.8,10.8,7.1
1970,4.3,6.5,10.2,12.9,15.3,17.5,17.7,17.9,17.3,14.7,10.4,7.1
1971,5.3,6,10.6,13,16.4,17.4,17.3,17.2,17,14.8,9,5.6
1972,6,6,10.2,11.9,14.9,16.8,17.5,17.6,17.1,14.3,10.5,7.1
1973,5.6,7.9,9.7,13.8,15.4,17.2,18.1,17.8,17.5,15.7,11.4,7.2
1974,4.8,6.5,10.1,12.8,15.4,16.8,17.4,17.7,16.6,16.3,12.4,6
1975,5.8,5.9,10.5,13.3,14.5,17.4,17.5,17.6,17,14.8,8.8,4
1976,5.7,7.7,11.4,12.9,15.3,16.5,17.4,17.2,17,14,11.7,6.4
1977,4.4,6.6,10.8,11.4,14,15.8,18,17.5,17.7,14,11.1,7
1978,4,6.5,9.8,13,14.8,17,17.7,18.6,17.2,15.6,10.4,6.6
1979,5.8,6.9,9.8,14.1,16,17.7,17.9,18.2,17.1,13.9,11.6,8
1980,5,6.6,10.6,13.6,14.4,18.1,18.3,18,17.7,14.4,10.3,7.6
1981,6.5,7.3,10.2,13.1,15,17.8,18.1,18.3,17.5,15.4,11.6,7.8
1982,6.6,6.9,9.9,12.2,15.4,17.4,17.6,18.2,17.5,15.1,10.4,6.8
1983,5.1,6.3,9.7,12,14.8,17.1,18.1,18.1,18.4,16.4,11.5,6.5
1984,5.1,7.3,11,13.6,15.2,18.5,18,18.4,16.6,15.3,9.4,6.8
1985,5.6,6.9,11.3,12.8,15.6,17.2,17.5,18.4,17.3,15.2,10.5,7.7
1986,6.3,6.8,10.2,11.9,15.4,18.5,17.5,17.4,16.4,13.2,10.5,7
1987,5.4,7.4,8.1,11.7,14.8,18.9,17.9,17.7,17.6,14.4,11.1,6.4
1988,6.1,7.9,10.8,13.1,14.1,17.3,17.6,17.5,17.2,15.1,11.3,8.4
1989,4.8,7.4,10.3,12.9,15.5,17.3,17.6,18,17.7,15.7,9.6,5.9
1990,6.2,8.4,10.4,12.2,15.6,17.7,18.5,17.9,17.4,14.4,11.4,7.3
1991,5,8.4,11.6,12.8,13.5,17,18.1,18.1,17.2,15.5,9.7,6.4
1992,5.4,5.3,10.5,13.5,14.9,17.5,17.5,17.9,17.2,14.9,10.4,6
1993,5.2,7.9,9.4,12.9,14.3,17,17.9,17.7,17.5,15.2,11.1,7.7
1994,5.8,6.6,10.5,13.3,16.6,17.5,18.5,18.4,17.8,14.1,10.9,6.9
1995,5.2,7.1,10.3,13.8,17,18.1,17.9,17.8,17.8,15.7,12.1,7.2
1996,5.4,7.4,11.1,13.8,15.4,17.3,17.7,17.7,18.2,14.8,11.2,7.8
1997,5.5,6.3,10.8,12.2,15.4,16.8,17.9,18.2,16.4,14.2,11.2,7.5
1998,5,7.9,9.5,13.4,16.8,17.1,17.5,17.6,18.4,16.8,12.4,8.2
1999,6.2,9.1,11.4,15.4,16,17.7,18.1,17.9,17.9,16.2,11.9,7.9
2000,5.2,6.5,10,13.3,16,17.6,18.3,17.8,17.2,15.7,10.7,7.2
2001,4.7,8,11.2,14.4,16,17.6,18.1,18.3,18.3,16.2,10.3,7.5
2002,6.9,7.8,10.8,13.5,15.8,17.7,17.7,18,18,15.4,11.3,8
2003,5.3,7.8,9.5,13.5,15.5,17.9,18.4,18.3,18.5,15.8,9.3,6.6
2004,5.8,6.8,11.1,13.6,15.9,17.5,18,18.4,17.2,14.8,10.5,7.3
2005,6.7,8.8,11.5,13.9,15.3,18.2,18.4,18.3,17.7,16.3,10.3,8.4
2006,6,9.3,12.2,13.9,16.1,18.1,18.8,18.9,18,16.3,11.5,7.8
2007,6,7.3,10.3,13.6,16.8,17.8,18.2,18.8,18,15.6,12,7.3
2008,6.7,6.7,10.4,14.3,16.8,17.9,18,18.1,18,15.9,11.1,8.4
2009,7.2,8.9,12.2,14.2,16.1,18.1,18.7,18.2,18.4,15.5,11.3,7.2
