1901,5.5,3.4,6.2,8.8,10.7,15.8,16.5,18.4,15.4,10.9,7.8,4.5
1902,5,6.7,7.4,9.5,9.8,13.5,16.7,18.4,15.4,10.8,8.9,5.7
1903,5.4,5.5,7,8.6,10.2,14,17.3,18.4,15.3,12.7,8.6,4.5
1904,4.3,5.7,5.6,8.6,12.3,14.6,17.2,17.8,15.5,13.1,8.9,7.3
1905,4.2,3.9,7.9,9.8,10.8,13.9,17,18.4,15,11.1,7.6,5.5
1906,5.1,4.1,6.2,7.6,10.6,15.6,17,18.9,16.3,12.6,7.9,4.1
1907,3.7,3.3,6,8.5,10.2,14.6,15.7,18.1,16.6,11,8.6,7.5
1908,5.9,4.4,5.3,7,11.3,12.9,16.2,17.9,16.6,12.8,9.7,6.7
1909,4,3.8,6.7,8.7,11.2,12.5,15.9,18,14.1,12.6,9.1,7.6
1910,4.8,6.5,5.1,8.3,9.6,14.3,16,17,15,12.5,8.5,6.8
1911,2.3,5.3,5.9,7.2,10.1,13.2,16.7,18.6,17.3,11.8,8.4,7.1
1912,5.9,8,8.2,7.9,11.9,14.3,15.1,15.7,14.4,11.2,7.5,4.9
1913,6.9,5.5,6.9,7.6,11.1,15.2,16,16.6,14.4,11.9,9.2,5.3
1914,3.6,6.2,7.1,8.5,11,12.6,15.6,17.4,16.4,12,7.9,6.1
1915,4.2,5.3,7.1,6.8,11.6,14.2,17.7,18.8,15.4,10.7,8.8,6.6
1916,4.6,4.9,5.9,7.8,11.4,13.9,16.2,17.6,15,12.5,8.3,6.8
1917,4.4,5.4,5.4,7,11.4,14.1,17.7,17.3,16.6,11.1,7.1,2.9
1918,6.4,5.1,5.7,7.1,10.6,13.9,16.7,17.7,16,9.7,8.1,5.4
1919,3.8,7.4,6.9,7.4,10.3,14.6,16,19,15.9,10.3,7.4,3.8
1920,4.9,6.2,6.5,9.4,12,14.9,16.2,17.8,16.2,11.6,8.2,5.3
1921,4.8,5.5,6.3,7.5,10.3,13.5,17.3,17.5,16.1,13.9,7.8,3.9
1922,4.5,5.1,5.7,8.3,11.6,13.7,17.2,17.5,14.4,12.2,8.4,4.3
1923,2.4,5.9,7,6.8,11.2,12.7,17.5,19,14.8,13.5,7.2,3
1924,4.8,3.2,7.2,8.3,13.1,15.3,17.1,17,15.5,12.3,8,5.5
1925,4,4.2,3.4,7.7,9.9,12.5,15,17.7,14.9,11.4,6.8,7.4
1926,5.6,7.4,7.5,8.9,9.8,13.5,16.6,18.1,17.5,13.5,6.8,4.3
1927,4.4,4.6,6.4,8.3,12.3,15,15.9,18,15.4,12.8,6.9,5.9
1928,3.6,5.6,6.9,7.8,9.3,14.4,18.7,18.1,16.6,12,6.6,4.2
1929,4.5,6.1,6.7,8.9,10.3,14.9,17.6,17.9,16.1,11.7,7.8,6.5
1930,6.2,3.7,7,7.4,11.1,12.9,16.2,18.9,16.4,13.9,9.1,6.4
1931,4.6,5,8.1,9.1,11.1,15.3,16.7,16.8,15.3,12.7,9,3.8
1932,4.7,4.3,7.3,7.5,11,13.4,15.8,17.8,15.7,11,8.4,6.5
1933,4.3,5,7,9.6,13.1,13.7,17.1,20.1,15.4,12.6,6,3.2
1934,3.2,3.5,4.9,7.5,11,14.8,17.2,16.6,16.3,12,6.4,7.4
1935,2.9,3.6,6.8,8.4,10,14.1,17.9,17.9,16.2,10.6,7.7,6.2
1936,7.4,7.6,6.9,8.9,9.2,12.5,16.1,18.5,16.8,10.8,6.7,3.9
1937,5.8,6.8,6.6,9.2,10.7,13.7,17.6,17.7,15.4,12.2,10.5,5.3
1938,4,4.2,6.7,8.5,10.8,16.3,17.1,16.8,14.2,12.5,9.5,5.3
1939,6.5,5.3,5.7,7.8,10.1,13.4,17.1,17,15.7,11.6,7.8,5.8
1940,5.4,7.5,8.8,9.6,10.8,13.5,16.5,18.2,15.8,11.1,7.6,3.3
1941,4.3,6,7,8.5,9.7,13.9,17.1,18.3,17.2,12.8,7.8,4.3
1942,3.8,3,8.1,8.5,12.1,13.9,16.8,17.7,16.2,14,9.4,6.5
1943,5.8,5.1,7.2,10.3,12.2,16.2,16.4,18.7,14.3,10.9,6,5.6
1944,3.5,2.3,5.9,9.9,12.2,14.6,16.8,17.3,15.8,9.5,7.3,3.7
1945,1.7,4.5,6.8,11.6,12.4,16,16.1,16.7,16,13.6,10.8,7.2
1946,4.5,5.1,6.5,8.3,9.5,14.5,18.5,18.4,15.5,12.4,8.5,4.1
1947,3.8,6.2,7.7,9.9,10.1,14.4,17.3,17.4,15.8,12.5,8.3,3.5
1948,4.4,6.1,8.1,8.9,10.2,14.4,16.1,17.6,15.3,11.8,8.4,6.9
1949,4.1,4.9,6.9,9.8,10.2,14.9,16.7,19.4,15.8,12.8,8.5,5.6
1950,4.3,4.7,6.1,7.4,10.3,14.5,17.5,17,14.9,12.5,9.1,4.5
1951,4.3,4.7,7.4,9.3,8.6,15.2,16.6,16.3,15,9.9,7.8,6.8
1952,2.6,5.2,7.5,7.7,10.8,14.4,16.2,16,13.2,12,8.2,5
1953,4.1,5,7,9.4,12.3,12.7,17.5,18.3,15.9,11.7,10,7.6
1954,3.6,3.5,6.6,7.7,11.5,14,16.5,16.4,15.4,13.3,10.4,6.5
1955,8.3,6.8,6.5,10,13.7,14.9,16.4,17.6,16.5,12.3,10.5,7.5
1956,4.8,2.2,5.9,7.6,9.7,13.7,15.3,16.3,13.6,13,6,3.1
1957,2.7,5.6,7.7,7.6,10,12.5,17.5,17.9,17.3,11.6,7.2,4.2
1958,4.2,7.5,6,7.4,11.5,13.3,15.9,16.9,16.2,11.7,7.8,7.5
1959,7,5.2,7.8,8.6,10.7,14.2,17.3,16.8,15.5,12.7,7.9,5.7
1960,4.1,6.6,7.6,8.7,11.8,16.2,17.2,16.3,15.2,10.5,8.6,4.2
1961,4.1,6.2,7.1,9.4,12.7,14.5,17.2,18.8,16.8,11.2,8.2,6.8
1962,6,4.5,7.5,9.4,10.5,14.2,17.2,18,17.4,14.2,6.2,5.3
1963,6.6,4.9,6.4,8.1,10.9,13.8,17,16.2,14.1,12.2,9,6.5
1964,6,6.1,7.3,6.8,12.4,14.3,17,17.5,17.6,10.7,7.3,3.4
1965,4.1,4.6,7.4,8.2,11.1,15.1,15.4,16.5,12.7,12.3,8.2,5.7
1966,5.9,5.9,4.3,7.6,11.1,13.9,16.4,16.7,15.8,10.3,5,3.9
1967,3.5,5.7,7,7.3,10.1,13.6,16.9,17.1,14.4,12.5,8.4,3.3
1968,3.5,6.1,6.7,8.5,10.1,14.1,17.3,16.9,14.9,12.8,9,5.5
1969,6.1,5.9,7.3,7.9,10.6,13.1,17.5,17.4,13.7,12.3,8.1,3.5
1970,6.4,4.7,5,7.6,9.2,12.6,16.4,16.8,15.6,10.5,8.5,2.5
1971,4.3,5.3,4.8,7.9,9.2,11.3,16.3,16.8,15.4,13.7,5.5,4.8
1972,3.7,5.4,6.1,7.6,9,12.5,15.3,16.4,13.5,11.2,8.1,5.1
1973,3.1,3.5,4.4,6.9,11.1,14.3,16.2,17.8,14.2,10.6,8.4,3.2
1974,4.9,5,5.7,6.4,10.2,14,17.1,17.3,14.3,9.1,6.8,4.6
1975,4.8,6.2,5.3,7.1,9.4,12.8,16.3,17.8,13.6,11.2,6.5,4.6
1976,2.5,6.1,5.7,6.6,10.6,14.9,17.2,17.5,14,10,4.7,6.3
1977,5.3,5.5,6.4,8.2,9.7,11.5,14.5,14.7,15.5,12.6,8.6,8.1
1978,5.5,6.2,6.1,7.6,9.2,12.2,16.6,17.4,16.4,11.5,8.4,7.6
1979,7.4,6.4,5.7,7.3,10.7,14.9,17.3,18,15.6,11.6,7.1,4.9
1980,4.1,6.3,6.6,8.9,10.4,14.9,16.5,18.3,17.5,11.5,8,3.6
1981,2.7,4.4,7.7,8.4,10.7,14.9,16.5,17.2,15.5,11.9,9.7,7.1
1982,5.8,6.5,6.9,8.7,11.7,15.3,16.2,16.6,15.9,10.2,7.8,4
1983,3.9,4.2,7.6,7.7,9.7,15.3,15.6,16.8,16.4,14.1,11.2,5.7
1984,4.8,4.1,5.4,9.6,8.4,12.9,16.7,17.3,15.7,10.7,9,6.1
1985,3.2,7.1,5.2,8.1,9.7,14.9,17.4,17.3,17.6,13.3,8.4,5.5
1986,4.2,5.3,6.3,6.2,12,14.9,17.2,16.8,16.7,13.4,8.1,4.6
1987,4.5,5.6,7.8,9.2,11.2,14.8,17.1,17.2,16.8,11.7,7.8,8
1988,6.1,5.6,6.9,9.1,10.9,13.7,17.2,18.5,15.4,12.7,9.8,4.6
1989,4.5,5.6,7.1,7.4,11.4,14.6,18.8,18.7,15.7,13.6,9.8,8.4
1990,4.8,7,8.2,8.2,12.6,14.8,17.8,18.5,17.8,12.1,6.9,5
1991,3.9,3.7,7.2,7.5,10.1,15.1,17.3,17.7,16.7,10.4,6.6,6
1992,3.7,4.1,6.3,7.9,11.2,12.8,16.7,17.1,14.4,10.3,7.1,6
1993,2.8,4.8,6,7.8,10.6,13.9,17.5,18.3,14.3,10.4,8.2,4.6
1994,4.3,4.8,7.3,7.8,11.7,14.9,18,18.4,14.5,12.9,9.3,5.9
1995,4.5,6.1,7.2,8.4,12.4,15,17.2,18.5,14.1,13.6,10.4,8.2
1996,7.3,4.8,7.2,9.3,10.9,15.1,17.2,17.3,14.5,11.2,8.1,6.9
1997,5.6,6.9,8.1,10.7,12.3,14.9,15.7,17.4,16.4,14.6,9.4,6.6
1998,5.5,7.5,7.2,7.9,11,15,17.4,18,16,10.1,8.7,3.7
1999,3.9,4.4,7,8.8,11.8,15.1,18.1,17.8,15.6,12.8,6.8,5.9
2000,3.3,5.7,6.9,8,11.6,15.6,16.4,16.7,15.5,10.6,7,6
2001,5.7,5.8,8.7,9,10.8,14.8,17.1,18.6,16.1,13,7.1,5.8
2002,6.4,6,7.3,8.8,10.6,14.7,17.2,17.5,14.8,12.5,8.7,7.3
2003,4.2,5.2,8.1,9.1,11.8,16,17,18.4,16.1,13.1,8.5,5.5
2004,5.6,5.7,7,7.1,10.5,14.9,17.7,17.6,15.5,12,6.4,4.7
2005,1.6,2.1,6.3,8.6,11.8,14.7,18.1,16.6,15,12.4,6.6,5.3
2006,3.2,4.3,7.1,9.4,11.7,14.9,17.5,17.4,15.9,13.3,10,4.7
2007,3.3,7.4,6.3,8.3,11,13.1,16.8,16.9,15.5,12.1,7.1,5.2
2008,4.9,7,6.5,7.9,10.4,13.8,17.6,17.9,15.3,11.7,5.9,4.4
2009,4.3,4.2,6.9,7.5,11.4,15.2,17.7,18.1,15.1,12.8,8,5.8
