1901,3.2,5.9,8.7,12.7,15,17.6,17.5,17.4,16.9,14.4,9.3,5.3
1902,4.4,6.1,9.3,11.4,14.8,16.2,17.4,17,16.7,13.2,8.7,4.9
1903,3.3,5.5,9,12.6,14.5,16.8,17.6,16.8,17.3,15,10.3,5.3
1904,3.5,5.3,8.7,11.6,14.2,17.1,17.5,17.3,17.1,14.4,9.2,5.2
1905,3.3,4.2,8,10.8,15.1,17.3,17.6,16.7,17.7,14.6,9.8,6.2
1906,4.7,5.6,7.9,11.7,15,17.3,18.1,16.5,18,14.5,9.9,5.9
1907,5.1,5.5,7.6,11,14.5,16.6,16.8,17.7,16.5,14.2,9.8,5.7
1908,4.3,5.9,9.2,13.5,14.6,17.4,17.1,17.3,16.7,13.7,9.2,4.8
1909,4,6.2,9.8,11.7,14,16.6,17.9,17.2,17.8,15.5,11,6.3
1910,4.5,5.4,8.4,12.1,15.1,16.5,16.5,17.4,17.3,14.2,9.8,5.2
1911,5.1,5.1,8.2,12.2,14.5,17,17.1,17.2,17.2,13.9,9.1,4.9
1912,4.1,6.1,8.8,11.2,15,17.2,16.9,17.1,16.8,13.8,9.9,5.5
1913,4.5,6.5,8.4,11.6,13.4,16.9,17.4,17.3,16.8,14.1,9,5.1
1914,3.8,5.9,9,11.3,14.8,17.4,17.9,16.4,16.7,12.3,9.2,6.2
1915,5.6,6.1,9.4,12.5,14.4,16.3,16.9,16.8,16.7,16.2,11.4,6
1916,4.8,6.4,10,12.3,15.6,17.9,17.7,18.3,18,15.6,11.1,6
1917,3.9,5.3,8.4,11.3,14.6,17.4,17.7,18.2,17.8,15.4,11.5,5.3
1918,4.1,6.1,9.6,11.6,15.6,16.7,18,18.3,17.4,15.1,9,5.9
1919,5.7,6.5,10.4,12,14.7,17.9,18,18.7,16.3,14.5,11.1,6.5
1920,6.2,5.9,9.5,11.3,14.2,17,18.8,17.4,18.1,14.8,9.5,7.1
1921,5.6,6.4,10.3,12.4,15.7,17.2,18.4,18.8,17.9,13.3,10.3,5.8
1922,5.3,6.2,10.3,13.2,15.6,17.8,18.7,18.6,18.4,14.2,11.1,6.7
1923,4.5,6.7,9.1,13,14.4,17.4,17.9,18.3,17.5,14.2,11.2,7.3
1924,4.9,6.6,10.1,13,14.2,17.9,18.4,18.4,17.1,15.9,11,6.5
1925,4,5.3,8.7,12.3,14.2,17.6,17.6,18.5,16.8,14.1,9.3,6.3
1926,5.2,6.2,9.1,11.5,14.6,17.4,18.3,18.6,18.3,14.9,9.8,8.1
1927,4.8,5.9,7.7,12.4,15.3,17.8,18.3,18.4,16.7,14.8,9.6,6.2
1928,5.4,7.6,9.6,12.8,14.8,17.5,18.3,18.5,17.5,14.1,8.5,6.4
1929,5.5,5.8,9.9,12.4,15.4,17.9,18.4,18.3,17.6,15.1,9.4,5.6
1930,3.6,6.4,9.3,12.3,15.7,17.2,17.9,18.2,17.7,14.4,11.5,5.8
1931,4.9,7.2,9.3,12.9,15,16.9,17.8,19,16.8,16.1,9,7
1932,4.7,4.6,9.2,12.5,14.7,17.4,18,18.9,18.2,15.6,11.6,6.8
1933,4.6,6.3,9.5,12,14.5,17.4,18.2,18.2,17.6,15.5,9.6,5.7
1934,4.6,6.6,9.5,13,14.9,16.2,18.3,18.5,18.7,15.1,10,5.3
1935,3,6.5,9.1,11.6,15.1,16.3,18.3,17,17,14.8,10.2,5.5
1936,4,5.8,10,12.9,16,17.2,18.2,18.6,17.1,14.1,10.4,6.5
1937,3.1,6.9,8.4,13,15,18,18.3,18.5,18.1,15.2,9.3,7.8
1938,5.7,5.7,10.6,13.1,15.8,17.6,17.3,18.7,17.8,15.7,7.9,6.2
1939,5.1,6.2,9,13.6,14.8,16.9,17.8,18.1,17.2,14,9.7,5.9
1940,3.2,5.8,7.6,13,14.6,17.1,17.7,18.2,16.6,13.8,9.3,6.3
1941,3.7,5.8,10.2,13,15.1,17.1,17.8,18.2,16.7,14.1,8.2,6.5
1942,4.8,7.1,9.7,12.1,14.9,17,18,17,16.6,14.5,10.3,5.4
1943,5.4,4.6,9,11.6,14.7,16.8,17.2,16.5,16.6,14.1,8.8,6.3
1944,5.7,5.9,9.7,12,14.4,16.5,18.2,17.6,16.1,14.7,8.6,5.6
1945,4.5,4.9,9,13,14.8,17.6,17.6,17.6,17.5,14.4,9,5.6
1946,4.3,7.5,9.3,12.4,15.1,17.1,17.2,17.5,16.7,14.4,9.9,7.3
1947,4.7,6.5,9.9,12.7,15.4,17.2,18.1,17.8,17.2,13.9,9.1,6.7
1948,4.8,6.5,8.6,12,14,17.2,17.3,17.4,17.1,13.7,10.9,5
1949,5.2,6.3,8.3,11.1,14.8,17,17.3,17.2,16.9,15.6,9.6,4.1
1950,4.2,5.7,8.6,11.6,14.5,16.8,17.2,17.4,16.8,15,10.3,6
1951,3.6,5,9.3,11.4,13.4,17.2,17.4,18.1,16.4,14.8,9.7,7.2
1952,4.2,6.3,8.2,12.7,14.9,17.5,17.8,17.7,17.2,15.9,10.2,4.9
1953,3.9,5.8,10.7,12,14.7,17,18,17.9,16.9,14.2,9.8,7
1954,2.5,7.1,8.3,12.9,14.6,16.8,17.2,17.4,17.2,13.7,7.8,6
1955,3.6,3.9,8.7,11.6,14.6,16.7,17.4,16.8,16.9,15.1,10.2,4
1956,3.5,4.7,9.8,12.9,15.6,17.4,17.2,17.6,16.8,14.1,9.9,5.6
1957,4,4.7,8.7,12.5,13.8,16.8,18.3,17.5,17,13.1,8.1,5.2
1958,4.6,5.3,9.2,13.2,14,17.5,18.4,17.3,17.1,15,8.4,5.8
1959,4.3,5.5,9.2,13.1,14.5,17.1,17.8,17.8,16.8,13.9,7.7,5.3
1960,3.3,6.5,9,12.8,15.5,17.4,17.3,18.1,17.2,13.9,9.2,6.1
1961,5.4,5.5,9.5,12.6,14.7,17.2,18,18.1,17.3,14.6,8.4,3.9
1962,2.8,5.7,8.3,12.6,14.2,16.6,18,17,17.2,13.6,8.2,4.9
1963,2.8,5.5,9.2,11.9,14.5,17.2,18.2,17.8,17.2,13.8,8.1,5.8
1964,3,5,8.7,11.6,15.2,16.6,17.1,17.5,16.9,15.2,10,4.7
1965,3.6,4.8,7.6,11.9,14.7,16.7,17,16.2,16.3,14.6,7.6,6.9
1966,4.2,6.3,9.3,11.9,15.3,16.2,17.3,17.4,16.8,13.3,10.7,6.3
1967,6.7,6.6,9,11.6,14.8,16.6,17.7,17.8,16.8,13.4,8.2,6
1968,4.4,4.7,8.6,11.8,14.3,16.9,17.7,17.4,16.9,14.4,9.3,4.9
1969,3.4,4.9,10.4,11.6,15.8,17.1,18,16.8,17.2,14.2,10.1,6.1
1970,3.6,5.8,9.2,12.2,15,17.4,17.5,17.7,17.1,14.2,9.9,6.3
1971,4.8,5.2,9.6,12.6,15.7,17.2,17.2,17,16.7,14.3,8,4.7
1972,5.3,5.6,9.3,11.2,14.7,16.9,17.3,17.3,16.8,13.8,9.8,6.4
1973,4.9,7.2,8.9,13.2,15.3,17.2,17.7,17.6,17.3,15.4,10.8,6.5
1974,3.8,5.9,9.1,12,15.1,16.8,17.1,17.5,16.4,16.1,12,5.4
1975,5.2,5.6,10.3,13,14.3,17.4,17.4,17.5,16.8,14.8,8.9,3.5
1976,4.8,7,11.2,12.5,15.1,16.7,17.1,17.1,16.8,13.5,11.2,5.7
1977,3.9,6,9.8,11.2,13.9,15.8,17.7,17.2,17.4,13.6,10.5,6.2
1978,3.5,5.8,9.1,12.5,14.7,16.9,17.5,18.3,17.1,15,9.8,5.7
1979,4.9,6.3,9,13.5,16,17.6,18,18.1,16.9,13.3,10.9,7.3
1980,4.2,6,9.9,13.2,14.6,18.1,18.2,17.9,17.5,14,9.5,6.8
1981,5.9,6.6,9.2,13.2,14.8,17.7,18.1,18.2,17.3,15.1,11.3,7.2
1982,5.6,6.2,8.9,11.8,15.1,17.3,17.6,18,17.3,14.5,9.8,5.9
1983,4.3,5.7,8.6,11.4,14.5,17.2,18.1,17.9,18,15.9,10.9,5.7
1984,4.7,6.9,9.9,13,15.2,18.2,17.8,18.1,16.2,15,8.5,6.3
1985,5,6.2,10.3,12.4,15.3,17.2,17.2,18.2,17,14.7,9.7,6.7
1986,5.6,6.3,9.1,11.5,15.2,18.5,17.2,17.2,16.1,12.8,9.9,6.2
1987,5.1,7.3,7.6,11.5,14.6,18.1,17.7,17.6,17.1,14,10.3,6
1988,5.5,7.3,10,12.8,13.5,17.2,17.5,17.5,16.9,14.9,11,7.7
1989,4.1,6.6,9.5,12.2,14.8,17.4,17.5,17.8,17.5,15.4,8.9,5.4
1990,5.5,8.3,9.9,12.3,15.4,17.4,18.3,17.6,17.3,14.2,10.8,6.8
1991,4.8,7.9,10.6,12.6,13.6,17,17.9,18,17.2,15.5,9.3,5.9
1992,4.8,4.9,9.5,13.1,14.7,17.5,17.4,17.8,17.1,14.5,9.9,5.2
1993,4.9,7.2,8.6,12.7,14.1,17.3,18.1,17.7,17.3,15.1,10.6,7
1994,5.5,6.3,10,13.2,16.8,17.6,18.5,18.3,17.6,13.8,10.4,6.2
1995,4.9,6.7,9.6,13.5,16.8,18,17.9,17.7,17.5,15.3,11.7,6.5
1996,4.9,6.4,10.1,13.4,15.3,17.4,17.8,17.6,18,14.5,11,7.2
1997,4.8,5.8,10.1,11.8,15.4,17,17.9,18,16.2,13.9,10.9,7.2
1998,4.8,7.3,8.9,12.9,16.8,17.2,17.5,17.7,17.9,16.4,11.7,7.5
1999,5.7,8.3,10.5,15.1,15.8,17.9,18,17.9,17.7,16.1,11.2,7.4
2000,4.9,6.2,9.3,13.1,15.9,17.6,18.3,17.9,17.1,15.6,10.2,6.7
2001,4.4,7.6,10.7,13.9,15.8,17.6,18,18.2,18,16.1,10,7.1
2002,6.6,7.6,10.3,13.3,15.7,17.7,17.8,18,17.6,15.1,10.8,7.6
2003,5,7.4,8.9,13.1,15.3,18.1,18.2,18.3,18.2,15.7,8.9,6.4
2004,5.6,6.6,10.6,13.5,15.4,17.6,17.8,18.3,17.2,14.2,10,6.8
2005,6.2,8.6,10.9,13.4,15,18.2,18.2,18.3,17.5,16.1,10,7.9
2006,5.4,8.7,11.4,13.4,15.9,18,18.6,18.6,17.8,15.9,11,7.2
2007,5.6,6.8,9.6,13.2,16.7,17.8,18.1,18.6,17.6,15.3,11.5,6.9
2008,6.2,6.3,9.8,13.7,16.6,17.8,17.9,18,17.8,15.7,10.5,7.8
2009,6.7,8.3,11.3,13.7,16,18.1,18.5,18.2,18.1,15.2,10.9,6.5
