1901,6.3,4.1,7,9.7,11.8,17.1,17.7,19.3,16.3,11.4,8.5,5.2
1902,5.6,7.4,8.1,10.4,10.9,14.7,17.9,19.3,16.2,11.1,9.5,6.6
1903,6.4,6.1,7.8,9.4,11.4,15.1,18.1,19.2,16,13.2,9.3,5.4
1904,5.3,6.4,6.5,9.4,13.4,16,18.6,19.1,16.2,13.4,9.4,8.1
1905,5.2,4.5,8.8,10.7,11.8,15.3,18.1,19.3,15.8,11.7,8.5,6.2
1906,6.1,4.9,7.1,8.5,11.7,16.5,18,19.9,17,13.2,8.7,5.2
1907,4.7,4.2,6.8,9.3,11.1,15.9,16.6,18.9,16.9,11.4,9.4,8.1
1908,6.6,5.2,6,7.7,12.2,14,17.2,18.7,17.2,13.2,10.4,7.4
1909,4.6,4.4,7.4,9.5,12.2,13.8,16.8,19,14.8,12.9,9.7,8.2
1910,5.7,7.3,6.1,9.1,10.8,15.6,17.3,18.1,15.9,13.1,9.2,7.5
1911,3.4,5.9,6.7,8.2,11.2,14.5,17.7,19.4,17.9,12.4,9,7.8
1912,6.7,8.7,9,8.9,13,15.6,16.3,16.8,15,11.8,8.1,5.5
1913,7.6,6.1,7.4,8.7,12.1,16.2,17.3,17.7,15.1,12.4,9.9,6.2
1914,4.6,6.9,8,9.5,12.1,13.9,16.8,18.3,17,12.5,8.6,6.4
1915,4.9,5.6,7.7,7.5,12.4,15.3,18.8,19.6,16,11.2,9.2,7.2
1916,5.1,5.4,6.6,8.6,12.2,15.1,17.3,18.6,15.7,12.9,8.7,7.3
1917,5,5.9,6,7.7,12.1,15.2,18.6,18.4,17.4,11.5,7.6,3.4
1918,6.8,5.6,6.3,7.8,11.6,15.1,17.9,18.8,16.7,10.1,8.5,5.9
1919,4.5,7.7,7.6,8.1,11.4,15.6,16.9,19.8,16.5,10.8,8,4.5
1920,5.5,6.6,7.1,10,12.9,16,17.5,18.8,16.9,12,8.7,6
1921,5.4,6.1,6.8,8.1,11.3,14.7,18.3,18.4,17,14.3,8.4,4.6
1922,5.2,5.6,6.5,9.2,12.5,14.9,18.1,18.6,15,12.8,8.6,4.8
1923,3,6.3,7.6,7.5,12,13.5,18.6,19.7,15.3,14.2,7.7,3.6
1924,5.5,3.9,7.8,9.1,14.1,16.4,18.3,18.2,16.3,12.8,8.5,5.5
1925,4.2,4.5,4.2,8.4,11,13.9,16.1,18.7,15.5,11.4,7.3,7.6
1926,6.1,7.9,8,9.6,10.9,14.9,18.1,19.1,18.1,13.9,7.2,4.8
1927,4.8,4.8,6.9,9.2,13.3,15.9,17,19.2,16.2,12.8,7.3,5.9
1928,4.1,6,7.5,8.5,10,15.7,19.4,18.6,17,12.4,7,4.5
1929,4.8,6.6,7.3,9.6,11.2,15.9,18.5,18.7,16.9,12.1,8.2,7
1930,6.9,4.1,7.7,8.3,12.2,14.2,17.2,19.7,17.1,14.4,9.5,7.3
1931,5.3,5.4,8.8,10,12.2,16.7,18.1,18,15.9,13.2,9.5,4.3
1932,5.2,4.8,8.1,8.3,11.9,14.7,16.9,18.9,16.5,11.5,9,7.1
1933,5,5.6,7.7,10.5,13.9,14.9,18.5,21,16.6,13.2,6.6,3.9
1934,3.8,4,5.4,8.3,12,16.2,18.5,17.8,17.1,12.4,7,7.8
1935,3.5,4.1,7.4,9.1,10.9,15.5,19.1,19,17.2,11.1,8.2,6.8
1936,7.9,8.1,7.5,9.6,10.1,13.9,17.4,19.3,17.6,11.1,7.3,4.3
1937,6.4,7.3,7.1,10.1,11.6,15.1,18.7,19.1,16.2,12.9,10.9,5.8
1938,4.8,4.5,7,9.2,11.4,17.7,18.3,17.8,14.7,13.2,10,5.9
1939,7.1,5.8,6.1,8.5,10.8,14.6,18.1,18,16.5,12.1,8.4,6.3
1940,6.2,8.1,9.3,10.2,11.7,14.6,17.7,19.1,16.6,11.5,8,4
1941,4.9,6.7,7.8,9.3,10.8,15,18.1,19.2,17.8,13.2,8.4,4.9
1942,4.8,3.5,8.8,9.6,13.3,15.3,18,18.9,17,14.5,9.8,7.2
1943,6.5,5.4,7.9,11,13.1,17.4,17.5,19,15,11.3,6.7,6.5
1944,3.8,2.8,6.5,10.4,13,15.8,17.9,18.6,16.6,9.9,7.7,4.3
1945,2.6,5.2,7.5,12,13.6,17.3,17.3,17.8,17.2,13.9,11.3,7.9
1946,5.3,5.5,7.2,9.1,10.5,15.7,19.8,19.8,16.5,13.1,8.5,5
1947,4.4,6.3,8,10.3,10.6,15.7,18.6,18.7,16.8,12.4,8.9,4.3
1948,4,6.8,8.9,9.9,11.3,15.8,17.3,18.7,16,12.7,8.6,7.3
1949,5,5.3,7.7,10.7,11.1,16.3,17.8,20.3,16.8,13.4,9.3,6.5
1950,5.2,5.2,6.6,8.1,11.3,15.6,18.8,18.4,16,13.5,9.9,5.5
1951,5.1,5.5,8,10.4,9.8,16.8,18,17.4,16,10.5,8,7.3
1952,3.6,5.7,7.9,8.6,12,15.8,17.6,17.2,14.1,12.5,8.8,5.6
1953,4.7,5.7,8.1,10.4,13.3,13.9,18.7,19.3,16.4,12.5,10.8,8.3
1954,4.6,4.3,7.3,8.6,12.4,15,17.7,17.3,16.2,13.5,10.8,7.3
1955,8.8,7.4,7,10.9,14.8,16.3,17.9,18.9,17.6,12.9,10.9,8.4
1956,5.4,2.8,6.8,8.7,10.8,15.1,16.3,17.3,14.5,13.3,6.9,3.9
1957,3.8,6.2,8.3,9,11.3,14.1,18.7,19,18.1,12.5,7.9,5
1958,5.2,8.1,6.9,8.5,12.4,14.7,17.2,18.1,17.1,12.4,9,7.8
1959,7.5,6.6,8.7,9.4,12.1,15.4,18.9,18,16.3,13.7,8.8,6.1
1960,4.9,7,8.3,9.4,12.5,17.6,18.4,17.6,15.8,10.3,8.7,4.7
1961,4.8,6.7,7.9,9.7,13.3,15.7,18.7,19.9,17.9,12.1,8.9,7.3
1962,6.5,5.4,8,10.4,11.9,16.1,18.6,19.3,18.1,14.8,7.1,6.1
1963,7,5.7,6.9,9.3,12.4,15.2,18.9,17.6,15.4,13.3,9.2,7.2
1964,7.5,6.7,8.1,8.2,14,15.9,18.7,19.4,19.2,11.8,8.4,5
1965,5.4,6,8.2,9.6,12.7,16.6,17,18,13.9,13.1,8.8,6.3
1966,6.5,6.5,5.7,8.4,13,15.5,17.7,18,17.5,10.9,5.8,4.9
1967,4.8,6.7,8,8.2,11.4,15.2,18,18.3,14.8,12.9,9.3,4.4
1968,4.9,6.8,7.5,9.4,11.1,15.5,18.6,17.6,15.1,13.1,9.1,6.1
1969,6.9,6.5,7.8,8.8,11.7,14.2,18.8,18.5,14.4,13.1,8.8,4.7
1970,6.7,5.4,6.2,8.7,11,14.1,17.9,18.4,17,12,9.5,3.5
1971,4.9,6.1,6.1,8.9,10.1,12.9,17.8,18.1,16.7,14.4,6.3,5.7
1972,4.6,5.6,6.7,8.2,10,13.6,16.4,17.7,14.5,11.9,8.8,5.7
1973,3.8,4.5,5.7,7.8,11.9,15.6,17.3,19.2,15.5,11.1,9.2,3.7
1974,4.9,5.5,7,7.1,11.3,15.4,18.6,18.4,15.2,9.7,7.3,5.4
1975,5.5,6.7,5.9,8.3,10.2,13.8,17.3,19.3,14.2,11.7,7,5.6
1976,3.7,6.9,6.9,7.4,12,16.7,18.5,18.6,14.4,10.3,5.3,6.3
1977,6,6,7.1,8.8,10.6,12.7,15.6,15.7,16.3,12.7,9.9,8.2
1978,6,6.1,6.8,8,10.2,13.3,16.7,18.1,16.6,11.8,9,7.1
1979,8.3,6.4,6.1,8,11.3,16.1,18.7,19,15.5,11.9,7.4,5.4
1980,4.5,6.6,7,9.5,11.1,15.6,17.3,19.2,18.6,11.4,8.3,4.4
1981,3.3,4.7,7.9,8.9,11.2,16.2,17.5,17.7,15.6,12.2,10.3,7
1982,6.2,7,7.7,9.7,12.7,16.7,17,18,17,10.6,8.2,4.7
1983,4.6,4.8,8.2,8.7,10.4,16.7,16.3,17.6,17.4,14.6,11.4,6
1984,5.4,4.7,6.1,11,9.4,14,18.1,18.5,16,11.1,9.1,6.5
1985,4,7.3,5.9,9.2,10.9,16.3,18.6,18.4,18.5,13.8,8.8,5.7
1986,4.6,5.6,6.9,7.4,13.5,16.1,18.6,18.1,17.6,14,8.9,5.3
1987,5.3,6,8.9,10.3,12.1,16.2,18.4,18.3,17.6,12.4,8.5,8.1
1988,6.8,6.2,7.5,10,11.9,15.1,18.6,19.9,16.6,13.3,10.5,5.3
1989,5.7,6.3,7.8,8.4,12.7,16.2,20.1,19.8,16.9,14.3,10.3,8.7
1990,5.7,7.7,9.8,9.3,13.7,15.9,19.7,20.2,19.2,12.8,7.7,5.8
1991,5,4.6,7.9,8.7,11.4,16.7,19.1,19.5,18.1,11.4,7.3,7
1992,5.1,5.3,7.3,9.1,12.7,13.7,18.9,18.8,16.4,10.8,8,7
1993,4.4,6.5,7.3,8.5,11.7,15.5,19,19.7,14,10.8,9.1,5.2
1994,5,5.5,8.6,9,12.2,16.4,19.8,19.5,15.2,13.7,10,6.5
1995,5.2,6.7,8.4,9.4,13.7,16.5,18.4,19.5,14.2,14.6,10.6,8.3
1996,8,5.8,8.1,10.2,12,17.1,18.5,18.3,15.1,11.7,8.6,7.2
1997,6.8,7.6,9.2,11.7,13,15.6,17.1,18.6,17.8,15.4,9.7,7
1998,6.4,8.3,8.2,9,12,16.4,18.6,19.6,16.5,10.6,9.1,4.6
1999,4.8,5.1,7.7,9.5,12.9,16.9,19,18.4,16.2,13.6,7.7,6.6
2000,4.7,6.7,7.8,9,13.2,17.9,18,18.4,16.3,11.1,7.6,6.3
2001,6.2,6.4,9.2,10,12,16.7,18.1,19.8,17.1,14,8.3,6.6
2002,7.1,6.5,8.3,9.5,12,16.1,18.6,18.3,15.6,12.9,9,7.7
2003,4.9,5.9,9,10,13.5,17.6,18.1,19.9,17.2,13.8,9.2,6.1
2004,6.2,6.9,7.8,8.4,12,17.1,19.6,18.9,16.7,12.7,7.4,5.8
2005,2.3,3.2,6.9,9.6,13.1,16.4,19.5,17.9,15.8,13,7.3,5.6
2006,4.2,5,7.7,10.2,13,16,18.9,18.4,16.4,13.4,10.1,5.5
2007,3.8,7.9,7.1,9.3,12,14.8,18.3,18.6,16.6,12.8,7.8,6
2008,5.6,7.6,7.2,9,11.4,15.3,18.8,19.3,16.1,12.5,6.7,5
2009,5.1,4.8,7.5,8.3,12.6,16.2,18.6,19.7,15.9,13.3,9.1,6.1
