1901,4.5,2.7,4.3,7.2,10.3,12.3,15.8,14.2,12.6,9,5.9,4.1
1902,5.3,3,6.5,6.7,9.1,11.9,14.1,13.8,12.2,9.5,7,5.6
1903,4.6,6.5,5.9,6.5,10.2,12.3,14.2,12.9,11.8,9.1,6.2,3.7
1904,4.7,3.7,4.5,7.8,9.5,12.4,14.5,13.8,11.8,9.7,6.1,5.6
1905,5.4,5.1,5.8,7.2,10.4,13.2,15.8,13.3,11.5,7.2,4.6,6.7
1906,5.4,3.4,5.6,6.4,9.2,13.2,14.1,14.7,12.8,9.7,7,4.4
1907,4.3,3.6,6.5,7,9,11.3,14.2,13.3,13.3,8.5,5.7,5
1908,4.1,6.1,4.6,6,10.8,12.4,14.7,14.1,11.4,11.2,8.1,6.1
1909,5.3,4.6,4.1,7.7,10,12.1,14.1,14.5,11.4,9.6,4.7,4.3
1910,4.2,4.6,5.9,6.4,10.1,12.5,13.7,13.5,11.9,9.8,4.5,5.9
1911,4.5,4.6,5.1,6.9,11.2,13.3,15.9,15.6,12.4,9.3,5.3,5.6
1912,5,5,6.5,8.2,10.7,12.2,14,11.7,11,8.3,6.4,6.5
1913,4.9,4.7,5.2,7.1,9.6,11.9,13.9,14.7,12.8,10.7,7.6,5.2
1914,4.5,5.9,5.7,7.5,10.1,13.4,14.3,14.5,12.6,9.9,6.7,4.2
1915,3.9,3.5,4.9,7.6,10.1,12.8,13.5,14.2,13,9.4,4.4,5.1
1916,3.9,3,4.1,6.1,10.4,12,15,14.5,12.5,8.4,7.3,3.1
1917,2.3,2.5,4.2,5.6,10.6,12.5,15.2,14.1,12.6,7.4,7.7,3.3
1918,4.1,6.8,5.6,6.7,11,12.5,14.2,14.6,10.7,7.9,6.3,6.8
1919,3.6,3.7,3.7,6.9,10.8,12.8,14,14.9,11.6,8.7,3.2,5.9
1920,5.2,6.3,5.9,7.2,10,13.1,13,13.2,12.4,10.7,8.2,4.7
1921,7.1,5.5,6.8,7.6,10.1,14,17.1,14,13,11.7,7.8,7.4
1922,5,5.7,5.3,5.4,10.8,12.5,12.5,12.9,11.7,8.6,6.7,5.5
1923,5.8,6,6.5,6.9,8.8,12.8,15.4,13.6,11.1,8.9,3.9,5.4
1924,5.7,4.3,4.8,6.5,9.7,12.8,13.7,13.4,11.4,9.2,7.2,6.9
1925,6,4.6,5.3,6.5,9.5,13.7,14.6,14.3,11.2,10.4,4.9,4.1
1926,5.5,6.5,6.4,8.3,9.6,12.2,15.8,15.1,13.4,8.3,5.4,4.8
1927,4.9,5.5,6.7,7.8,10.5,11.4,14.9,14.3,11.5,10.1,6.1,4.1
1928,5.6,6.3,5.9,7.1,10.6,12,14.4,14,12,10.1,7.3,5.1
1929,3.6,4.7,6.5,7.2,10.1,12.2,14.6,14.1,13.9,9.3,6.8,5.6
1930,4.9,2.6,5.5,7.6,10.4,13,14.4,13.4,12.5,9.8,6.3,5.4
1931,4.4,4.6,4.9,7.5,10,13.4,14.1,14.1,12,9.3,7.6,6.5
1932,6.8,4.1,5.3,6.4,9.7,13.8,14.9,15.5,12.4,8.6,7.3,6.1
1933,3.8,4.6,6.9,8.5,11.2,13.9,16.1,15.8,14.4,9.9,6,3.9
1934,5.7,4.5,5.2,6.7,9.9,14,16.9,13.8,12.5,9.8,6,8
1935,5.3,5.7,6.4,7.5,10.1,12.8,15.5,15.2,12.7,9.3,6,3.7
1936,3.8,4.4,6.4,6.4,10.4,13.4,14.2,15.2,13.5,10.2,6.4,5.8
1937,5.5,5.4,3.5,8.5,10.7,13.2,14.5,15.2,12.3,9.2,6,3.8
1938,5.5,5.3,8.2,7.8,9.9,12.7,13.5,14.4,12.6,9.7,8.3,4.9
1939,4.3,6.1,6.1,7.9,11.1,13.7,14.1,15.1,13.3,8.4,8.6,4.5
1940,2.9,5.5,6.7,8.6,11.7,15.4,14,15.5,12.7,9.8,7,5.1
1941,2.5,4.1,5.6,6.5,9.2,13.7,14.7,14.2,14.3,10.7,6.9,6.9
1942,4.6,3.4,6.7,8.7,10.3,13,14.6,15.1,12.6,9.3,5.1,7.3
1943,6.1,6.7,7,9.7,10.4,13.1,15.2,14.5,12.2,10.2,7,5.2
1944,7.1,4.7,5.6,9.4,10.6,13.1,15.2,15.4,11.8,8.3,6.6,5.2
1945,2.1,7,8,8.9,10.8,13.3,14.9,15.1,13.7,11.7,8.4,7.2
1946,5.3,6.6,5.9,8.6,10.2,11.9,14.1,13.2,12.3,10.5,7.7,4.5
1947,4,0.7,4.6,8,10.2,13.1,14,16.8,13.6,11.1,7.7,5.5
1948,5.2,5.3,8,8.2,10.3,12.1,14.3,14.2,12.5,10.1,9,6.4
1949,6.5,6.8,6.6,9,10.1,13.7,16,15.1,14.6,11.3,7,6.1
1950,5.6,5.3,7.4,7.5,11.1,14.1,14.6,14,11.7,9.3,5.6,2.5
1951,4.2,3.2,4.8,6.5,9.2,12.7,15.4,13.9,12.9,10.6,7.6,5.6
1952,3.5,4.5,6.6,8.1,11.8,13,15.6,14.8,11,9.4,5.8,4.7
1953,5,5.1,5.8,6.9,11.6,13.2,14.5,14.3,12.9,9.4,7.8,7.4
1954,4.6,4.2,6.1,8,10.3,12.4,13.6,13.4,11.5,11,6.6,7
1955,4.1,2.2,3.7,8.8,9.1,12.7,16.5,17,13.7,8.9,7.8,6.8
1956,4.4,2.1,7.2,7.7,11.1,13,14.5,12.9,13,9.5,7,6.5
1957,5.3,4.9,8.7,8.1,10.4,13.6,15.1,14.4,11.9,10,6.2,5.3
1958,4.8,5.7,4.8,7.5,9.7,12.4,14.4,14.3,13.6,10.3,8,5.1
1959,3.6,6.1,7,8.5,11.4,13.5,15.3,15.5,14.1,11.7,6.7,5.7
1960,4.6,3.6,6.7,8.6,11.7,14.1,14.2,14.1,12,9.4,6.7,3.9
1961,4.5,7,7.8,8.8,10.3,12.6,14.1,13.9,12.8,9.3,6.2,4.1
1962,4.7,5,3.8,7.1,9.6,11.6,13.8,13.3,11.4,9.8,5.7,4.6
1963,2.1,1.9,6,7.3,9.4,13.1,13.5,13.5,11.3,10.3,7,4.3
1964,5.4,4.9,5.5,7.8,11.1,12.3,14.4,13.9,13,9.1,7.5,4.6
1965,3.4,3.2,5.7,7.9,10.2,12.6,13.5,13.7,11.1,10.4,4.9,4.9
1966,4.4,6.3,6.8,7.3,9.9,13.2,14.4,13.7,13.2,8.6,5,5.9
1967,4.7,5,6.1,8.3,8.6,12.9,14.4,13.7,12,8.9,5.6,5.2
1968,5.4,2.6,5.8,6.8,9,13,13.9,15,12.6,11.5,7.7,4.9
1969,4.9,1.8,4.5,7.3,9.9,12.3,14.9,14.6,12.9,12.1,4.9,4.8
1970,4.5,3.6,4.9,6.5,11.3,14.4,14.1,13.9,12.3,10,6.9,4.5
1971,5.1,5.3,5.4,7,9.9,11.9,15.2,14.3,13.9,11.5,6.6,6.5
1972,4.1,4.7,5.6,7.8,9.4,10.7,14.5,13.3,11.5,10.1,5.8,6.4
1973,6,5,6.1,7.1,10,13.2,14.4,14.8,12.8,9.6,7.3,5.5
1974,6.1,5.1,5.4,7.7,9.7,12.3,14.2,13.6,10.5,7.6,5.8,7.4
1975,5.9,6,5.1,7.7,9.7,13.5,15.5,15.5,11.8,10.1,6.8,5.2
1976,5.8,5.2,6.1,7.7,9.9,14,15.5,15.9,12.3,9,6.1,3.1
1977,3,4.8,6.7,7,9.7,11.9,15.1,14.7,12.3,10.8,5.3,5.9
1978,3.6,3.5,5.9,6.6,10.7,12.4,13.7,13.7,13.1,11.2,8.4,5.3
1979,2,2.8,4.3,6.7,8.2,12.2,14.7,13.5,12,10.2,7.2,5
1980,3.5,5.5,5,8,10,12.2,13.3,14.1,12.9,8.3,6.4,5.8
1981,5.8,4.7,7.3,7.5,10,12.4,14.2,15.4,13.3,7.3,7.4,3.1
1982,4.6,5.8,5.8,8.2,10,13.3,14.9,14.4,12.6,9.4,6.5,4.6
1983,6,2.9,6.6,5.8,9,12.8,17.2,16.5,12.3,9.4,7.7,6.7
1984,3.7,5.2,4.8,8.1,9.6,13.6,15.4,16,12.6,9.8,6.2,5.7
1985,2.2,4.7,5.1,8.2,9.7,11.7,14.1,12.7,13.1,10.3,4.5,6.2
1986,4.1,0.8,5.1,5.2,9.1,12.5,14.3,11.9,10.8,9.7,6.8,5.2
1987,3.2,4.2,5,8.9,9.8,11.9,15.1,14.6,11.9,8.3,6.5,6.6
1988,4.8,4.4,6.6,7.7,10.4,13.8,13.3,13.3,11.4,9.5,6.7,7.6
1989,6.5,5.6,6.6,6.1,11.6,13.2,17.2,15.1,12.8,11,6.7,5.5
1990,6,6.1,7.7,7.5,11.7,12.7,15.4,15.7,12.2,10.4,6.6,4.3
1991,3.9,3.4,7.3,7.4,11.4,11.9,14.9,15.6,13.9,8.8,6.3,6.3
1992,5.2,6.2,7.2,7.8,11.4,14,15.1,13.4,11.2,7.3,7,4.7
1993,6.1,6.2,6.5,9,9.7,13.2,14.3,13.8,11.7,7.4,6.2,5.4
1994,5,4.6,7.1,6.9,9.5,12.5,14.2,13.7,11.5,9.7,8.9,6.6
1995,4.7,5.9,5.2,8.6,9.9,13.6,16.1,16.5,12.6,11.6,7.5,4.4
1996,5.7,4.2,5,8.1,8.4,12.7,14.8,14.3,13.1,10.3,5.8,3.9
1997,3.9,6,7.6,9.2,10.4,12.5,15,15.7,13.1,10.9,7.9,6.1
1998,5.2,7.1,7.9,6.9,11.6,12.5,14.2,15,13.4,10.3,6.8,5.7
1999,5.2,5.9,6.8,8.7,11.5,12.2,15.8,14.8,13.5,10.1,7.1,4.6
2000,4.7,6,7.4,6.7,10.9,12.9,15,15.1,13.1,8.8,5.6,5.2
2001,3.9,4.7,5.5,7.4,11.5,12.9,14.9,14.6,13,11.6,7.7,4.8
2002,6.8,6.5,7.2,8.2,10.3,11.9,14,14.7,12.8,9.3,7.6,5.8
2003,4.6,4.9,7,8.7,10,13.1,15.2,15.7,13.1,8.9,7.3,5.3
2004,5.2,4.9,6.5,8,10.9,14,13.9,15,13.2,8.5,7.8,6.1
2005,6.1,4.5,7,7.7,9.8,13.9,15.4,14.9,13.1,10.6,6.3,5.6
2006,5.3,4.6,5.3,7.9,10.2,14.1,16.3,15,14.1,11.1,6.8,6.1
2007,5.3,5.7,6.3,10.1,11.1,13.1,14,14.4,13.1,10.8,7.6,6.2
2008,5.7,5.7,5.8,7.3,11.5,12.8,14.4,14.4,11.7,8.5,6.5,4.4
2009,4.3,4.6,6.4,7.9,10.1,13.2,14.1,14.1,12.3,10.8,6.5,3.1
