1901,4.5,4.4,3.9,6.8,10.8,11.3,14.7,13.3,12.5,8.5,7.1,4.7
1902,4.9,3.1,5.9,7.1,7.5,11.5,12.2,12.6,12.3,9.4,7.1,5.2
1903,3.8,6.4,5,5.9,9.2,11.5,13.1,12.6,11.7,8.9,7,4
1904,4,3.2,3.8,6.5,8.7,11.8,13.3,13,11.2,9,6.7,5.1
1905,5.1,4.6,5.2,6.2,9.4,12.4,13.9,12.5,11,7.8,5.9,6.4
1906,5.5,3.2,4.5,6.3,7.9,11.8,13.1,14.2,12.8,9.3,7.4,4.6
1907,5,3.6,6.1,6.5,8.5,10.1,12.9,12.1,12.4,8.7,6.9,4.6
1908,4.3,5.5,4.1,5.4,10,11.6,13.6,12.6,11.4,11.6,8.2,5.4
1909,5.3,5,3.6,7.3,9.7,11.1,12.5,13.4,11,9,5.9,4.5
1910,4.1,4.2,5.9,5.9,9.1,12.2,12.6,13.4,11.6,10.1,4.7,5.8
1911,4.9,5.2,4.9,6.6,10.7,12,13.8,14.9,11.8,9.1,6,5.4
1912,4.2,4.6,5.7,8.1,9.8,11.5,12.7,10.9,10.2,8.3,6.6,5.9
1913,4.2,5.1,4.8,6.9,9.2,11.4,12.4,13.3,12.1,10.1,7.6,5.7
1914,4.3,5.1,4.9,8.8,8.8,11.6,13.6,14.1,12.2,10.1,7,3.7
1915,3.8,3.5,5.1,7,8.9,12,12.9,13.3,12.4,9.3,4.8,4.7
1916,6.7,3.6,3,6.5,9,10.3,13.2,14.5,12.4,9.4,6.9,4.1
1917,2.8,3.6,3.9,4.7,9.5,11.7,14.6,14,12.3,6.9,7.8,4.3
1918,4.5,6.2,5.2,6.5,10.5,11.5,13.2,13.7,9.4,8.2,6.4,6.8
1919,4.2,3.4,3.2,6.4,11.4,11.2,12.2,13,11.1,9.2,4.9,5.2
1920,4.8,5.8,5.5,6.4,9.3,12,12.1,11.9,11.6,10.3,8.2,4.6
1921,6.7,5.8,5.9,7.7,9.3,11.8,14.8,12.6,12.2,11.8,7.5,7.7
1922,5.1,5.6,5.1,4.8,9.6,11.1,11.6,11.7,10.9,9.1,7.5,5.9
1923,6.7,5.7,6.2,6.6,7.4,10.3,14.1,12.9,10.8,9,4.6,5.4
1924,5.5,5,4.4,5.7,8.8,11.5,13.3,12.7,10.9,9.2,7.8,6.9
1925,5.8,4.3,5.2,6.3,8.8,11.8,13.3,13.3,10.4,10,5.9,4.7
1926,5.8,6.2,6,8.9,8.9,11.9,14.6,14.6,12.5,8.1,6.1,5.8
1927,5.3,5.5,6.4,6.7,8.9,10,13.6,13.6,11.2,10,7,3.8
1928,5.4,5.9,5.1,7,9.6,10.2,12.8,13.3,11.4,10.1,7.4,5.4
1929,3.9,3.7,6.9,6.7,9.9,11.2,13.6,13.2,13.2,9,6.9,5.3
1930,4.3,2.9,4.7,7.1,9.5,12.4,13,13.1,11.9,9.6,6.5,5.6
1931,4.9,4.9,4.9,7.2,10.1,12,13.3,12.9,11.1,9.6,7.8,7.1
1932,6.9,5.6,5.8,6.3,9.7,12.7,13.9,14.3,11.7,8.7,7,6.3
1933,3.7,4.8,6.8,8.5,10.2,13.1,15,14.7,13.2,10.2,6.5,5.1
1934,5.8,6,4.7,6.4,9.3,12.4,15.3,13.2,12,9.2,6.9,7.5
1935,5.8,5.8,6.6,6.8,9.3,12,14.1,14.2,11.9,8.7,5.8,3.9
1936,3.9,3.9,6.2,6.3,9.8,12.2,13.6,14.6,13.3,10,6.6,6.1
1937,5.1,5,3.5,8.2,10.6,11.5,13.5,14.6,12.1,9.3,7.5,4.8
1938,5.9,5.7,8.3,7.7,9.5,11.3,12.5,13.2,12.3,9.7,8.2,4.5
1939,4.1,6,5.8,7.5,9.9,12,13,13.8,12.2,8.5,7.7,4.9
1940,2.6,4.5,5.5,7.7,10.6,13.6,12.5,13.5,11,9.1,7,5
1941,1.8,3.6,4.4,5.5,8.1,12,13.5,12.6,13.6,10.1,6.9,6.5
1942,4.5,3.4,5.3,8.3,9.6,11.6,13.3,13.9,11.7,9.4,6.9,7.2
1943,5.6,6.9,7,8.9,9.9,12,13.6,13.1,11.5,10.3,7.6,5.9
1944,6.9,5.2,5.6,9.1,9.7,11.1,13.9,14.5,11.3,9,6.6,5.2
1945,2.7,7,8.4,9.2,9.8,12.2,14.1,14.5,13.3,11,8.5,6.8
1946,4.5,5.8,5.8,8.3,9.6,11.4,13.6,12.6,12.4,9.8,7.9,4.4
1947,3.9,0.5,3.3,7.1,10.6,12.2,13.8,16.1,12.8,11,7.5,6.1
1948,4.5,5.2,8.4,7.9,9.6,11.5,13.2,13.1,11.8,9.8,8.7,6.3
1949,5.9,6,6,8.4,9.3,12.6,14.2,14,13.4,10.8,7.3,5.7
1950,5.7,4.3,7.1,6.5,9.7,13.1,14,13.3,11.2,9.1,5.8,3.1
1951,4.1,3.3,4,5.6,8,11.5,13.7,12.9,12.1,10.1,7.8,5.8
1952,3.4,4.9,6.4,8.2,10.6,11.5,13.8,13.6,10.2,9,6.1,4.7
1953,5.3,6,6,6.2,10.8,11.6,13.2,13.6,13.1,9.9,8.2,7.6
1954,4.7,3.8,5.7,7.2,9.9,11.6,12.2,12.8,10.7,10.3,6.5,6.7
1955,3.6,2.6,3.9,8.5,9.1,11.9,14.7,15.5,13.2,9.3,8.1,6.1
1956,4.6,3.4,6.7,7,10.3,11,13.5,12.2,12.5,9.9,7.8,6.4
1957,5.5,4.9,8.5,8,9.8,13,13.4,13.4,11.3,10.2,7.4,5.8
1958,4.6,5,3.8,7.3,8.7,11.7,13.7,14,13.4,10.4,8.2,5.4
1959,3.4,6.2,6.8,7.9,10.7,13.2,14.6,14.8,13.6,12.1,7.2,5.9
1960,5.1,4,6.4,8.2,11.5,13.6,13.8,13.2,11.9,10,7,4.4
1961,4.2,6.8,8.3,8.1,9.9,12.4,12.8,13.3,12.4,9.7,6.7,3.9
1962,4.9,5.3,3.4,6.9,9.2,12.1,12.8,12.8,11.3,10.5,7,5.4
1963,1.9,2,6.1,7.5,8.9,12.5,13.3,12.5,11.8,10.4,7,5
1964,5.8,5.1,5.1,8.3,10.8,11.9,13.4,12.9,12.2,9.3,7.8,4.9
1965,4.2,4.8,5.3,7.5,10,12.3,12.4,13.2,10.9,10.4,5.6,5.1
1966,4.6,5.1,6.6,6.3,9.7,13.1,13.4,12.9,12.7,9.3,6.1,5.7
1967,5.9,5.6,6,7.5,8.5,12.1,13.7,13.4,12,9,6.9,5.8
1968,5.5,3,5.8,7.6,8.3,12.5,12.9,13.5,12.5,11.6,7.1,5.2
1969,5.3,2.7,3.6,6.9,9.1,12.3,14.3,14.2,12.3,12.3,5.6,5.2
1970,4.8,3.5,4.6,6.6,10.9,13.7,12.4,13.7,12.5,10.4,7.2,6.1
1971,5.8,5.9,6,7.4,10.2,10.9,14.1,13.3,13.6,11.3,7.5,8
1972,4.2,4.8,5.5,7.4,9.2,10.1,12.8,12.5,10.8,10.8,6.6,6.1
1973,5.8,5.1,6.2,6.4,9.2,12.3,13.6,14.3,12.4,9.5,6.9,5.9
1974,6,5.5,5.6,7.6,10,11.7,13,13.7,10.5,8.5,6.3,7.3
1975,6,5.7,4.7,7.3,8.7,12.3,14.5,15.2,11.7,10.5,7.1,6.7
1976,6.1,5.3,5.3,7.8,9.9,13.7,15,15,12,9.1,6.7,3.5
1977,3.9,4.1,6.6,6.7,9.2,10.9,14.2,13.6,11.3,11.3,5.9,6.5
1978,4.2,3.9,5.8,6.1,10.2,11.9,12.8,13.4,12.6,11.5,8.5,5
1979,2.7,3.3,4,6.1,7.7,11.5,13.6,12.7,11.8,10.6,7.2,5.4
1980,3.9,5.5,4.5,8,10.5,11.9,13,14,12.9,8.9,7.2,6.4
1981,6.2,4.2,6.5,7.7,9.8,11.7,13.1,13.9,12.5,7.4,7.8,3
1982,4.5,5.3,5.4,8,10.2,12.7,13.9,13.3,11.7,9.6,7,4.8
1983,6,3.9,6.4,5.7,9,11.8,15.1,15.2,12,9.8,8.4,7
1984,3.5,5,4.6,8.4,8.9,12.2,14.2,14.8,12.1,9.9,6.9,5.9
1985,2.6,4.3,5,7.7,9.1,11.1,13.5,12.7,12.7,10.6,5.4,6.4
1986,4.3,1.9,5.2,5.5,9.4,12.2,13.4,11.6,11,10,7.2,5.7
1987,3.7,4.9,4.7,8.5,9.3,10.8,14.1,14,11.9,8.5,7.7,6.7
1988,4.9,5.2,6.3,8.2,10.5,12.5,13.2,13.5,12,10.1,7.1,8.2
1989,7.8,5.9,6,6.2,10.5,12,14.9,14.2,12.2,10.7,7.5,4.8
1990,6,5.6,7.7,7.3,10.9,12.1,14.8,14.7,11.7,10.5,7.5,5.2
1991,4,3.8,7,7.6,9.8,10.9,15.1,14.9,12.7,9.5,7.2,6.3
1992,5.9,6.3,6.9,7.9,11,13.1,14,12.9,11,8,7.1,4.9
1993,5.7,6.8,6.6,8.3,9.4,12.4,13,12.6,11.5,8.2,6.1,5
1994,4.9,3.7,6,6.9,9.2,11.5,14.5,13.5,11.6,10.2,9.7,6.4
1995,5,5.6,4.7,7.7,10,11.8,15.3,16,12.6,11.6,8.5,4.4
1996,6.1,4.2,4.9,8.3,8.2,12.3,13.5,13.9,12.7,10.8,6.4,5
1997,4.9,5.9,7.3,8.3,9.9,11.6,14.3,15.7,12.4,10.3,9,6.9
1998,5.4,8.1,7.1,6.7,10.3,11.8,13.4,13.9,13.2,9.6,7.7,6.6
1999,5.2,5.8,6.6,8.3,10.9,11.3,14.6,14.1,13.1,10.6,8.3,5.2
2000,5.9,5.9,6.9,6.6,9.8,12.3,13.8,14.2,12.6,9.3,6.7,5.8
2001,4.1,4.6,4.6,6.8,10.9,11.6,13.3,14.3,12.4,11.8,8.6,5.8
2002,6.7,6,7.1,8.2,10.2,12.3,13,14,12.7,9.4,8.3,6.1
2003,5.6,5.2,7.1,9.1,10,13.3,15,14.9,12.6,9.5,8.2,6
2004,6,5.5,6.3,8.5,10.3,12.9,13.6,15,12.9,9.2,8.6,7
2005,6.8,5.4,7.6,7.9,9.3,13.1,13.9,14.1,13.5,11.3,7.3,6.4
2006,5.7,5.5,5.5,7.5,10.2,13.5,15.8,14.3,14.1,11.8,8.1,6.5
2007,6.7,6.2,6.5,10,10.4,12.8,13.5,13.7,12.5,11.7,9.1,6.5
2008,5.9,6.3,5.8,7.6,11.6,12.3,14.4,14.4,12.2,9.2,7.6,5.2
2009,4.8,5.6,6.9,8.7,10.4,12.9,14.5,14.3,12.5,11.2,7.7,4.4
