1901,5.8,3.9,5.5,8.9,11.3,13,15.8,14.2,13.2,10,6.7,4.7
1902,5.5,4.9,6.7,8.4,9,12.3,12.5,12.5,11.7,10,8.8,6.3
1903,5.8,6.7,6.8,6.9,10.2,11.7,12.6,13.6,12.3,9.3,6.6,6
1904,6.5,3.9,5.9,7.9,10.3,12.7,14.2,14,13.2,9.7,6.7,6.1
1905,5.8,5.5,6.9,6.1,9.8,13.5,14.5,14,12.2,7.3,6.6,6.9
1906,5.7,4.4,5,7.9,8.9,12.9,13.1,13.9,13.4,10.4,8.4,5
1907,5.7,5.2,6.3,7.4,9.4,11.3,12.6,11.8,11.3,10,7.5,5.6
1908,6.1,4.7,5.7,6.9,9.7,12,13.7,13.7,12.3,11.4,7.5,6.6
1909,5.6,5,4.9,7.9,9.3,11.4,12.8,13,11.8,8.9,5.8,4.3
1910,4.9,5.4,6.8,7.6,11,13.5,14.3,15.4,12.2,10.3,4.8,5.8
1911,5.8,6,6.3,7.7,11.7,12.9,14.7,15.3,12.8,8.9,6.6,7.6
1912,4.9,5.7,7.2,7.9,9.8,11.9,14.2,13.5,11.9,9.6,6,6.5
1913,5.5,5.8,5.9,8.3,10.3,12.4,13.8,14.1,13,10.6,8.9,5.4
1914,6,7.2,6.1,9.2,9,12.9,15.2,15,12.5,10.6,7.2,5.3
1915,5.5,5,4.5,7.6,8.9,11.7,13.6,13.9,12.1,10.3,5.5,2.8
1916,6.7,4.9,4,8.1,9.7,11.1,13.5,13.5,12.1,9.8,8.3,5.7
1917,4.3,5.2,4.4,5.8,9.9,13.5,14.6,16.2,12.7,8.2,6.9,3.9
1918,3,6.2,6.9,7.8,11.6,12.5,14.2,14.9,10.4,9.8,8.1,6.4
1919,6.1,3.6,3.8,7.2,11.9,12.9,13.5,13.5,12.1,8.8,4.3,5.4
1920,5,6,7.2,7.4,10.1,13,13.8,13.2,12.2,11.7,9.4,7.2
1921,6.1,7,6.4,9.1,10,11.9,13,12.5,12.1,10.5,7,6.5
1922,5,5.7,5.8,6.4,9.8,12,12.8,13,11.5,8.8,7.2,6.6
1923,6,5.2,7.3,7.2,8.3,10.2,13.9,13.6,11.6,9.5,6,5
1924,6.5,5.1,4.9,7,9.3,11.2,14,14.8,12.7,10.4,9.1,8.6
1925,7.7,5.5,5.2,7.9,10.7,13,15.6,14,11.6,8.8,6.2,4
1926,6.9,6.6,6.7,9.9,9.6,13.4,15.2,15.1,12.4,6.9,8.2,6
1927,5.4,6.4,7.9,6.2,8.5,10.6,14.8,14.8,11.8,8.9,6.3,4.2
1928,5.9,6.4,6.7,8,9.8,10.9,12.9,13.1,12.2,10.1,7.6,6.1
1929,5.9,4.7,8.5,7.4,10.8,11.7,14,13.7,12.9,8.7,7.9,7
1930,6.4,5.4,5,8.8,10,13.8,14.7,15.4,12.9,9.8,6.2,7.2
1931,5.1,4.7,4.5,8.5,10.9,11.7,14.1,14.1,11.9,9.7,9.5,7.2
1932,7.7,7.6,6.4,6.9,10.7,12.6,15.1,14.6,11.9,8.9,8.2,7.3
1933,6.4,4.6,7.8,8.1,10.6,15.4,16.4,15.9,14.3,10.6,8,7.3
1934,7.2,7.5,6.6,8,10.3,13.6,15.6,15.5,13.9,10.1,7.7,8.7
1935,6.4,5.3,7.8,8,10.2,12.6,14.4,14.9,12.8,9.3,8.3,5.2
1936,4.1,5.1,6.7,7.7,11.3,14,16.3,15.2,13.5,10.4,8.2,6.6
1937,5.7,4.5,4.4,9,11.6,12.9,14.4,15,13,11.1,7.2,5.3
1938,6.5,6.1,8.3,8.8,9.8,12.6,14.5,15.9,13.2,11,8.5,6.6
1939,4.9,7.3,7.6,8.3,11.1,13.4,13.9,15.7,13.9,9.8,7.9,5.7
1940,4.1,4.1,5.6,7.6,11.7,14.7,14.1,13.5,11.7,10.1,7.5,6.1
1941,3.1,4.4,5.9,7.6,9.8,12.8,15.6,14.7,13.5,10.6,7.7,7.2
1942,3.7,3.8,4.4,8.8,10.3,12.3,14,14.2,12.7,9.8,8,7.3
1943,5.5,7.2,8.2,8.8,10.8,13,14.8,13.8,13.1,11.4,7.6,7.2
1944,6.3,5.7,6.3,8,9.8,12.5,14.8,15.1,12.6,10.1,6.6,5.9
1945,3.3,6.9,8.7,8.8,11,13.2,15.3,15.2,13.9,11.3,9.3,6.7
1946,6.7,5.2,6.8,9.1,11.1,12.7,15.1,15,13.8,10.5,8.3,6.9
1947,5.6,1.9,3.3,8.1,11.7,13.3,16.4,17.4,13.8,10.9,6.8,6.5
1948,4.4,6.3,8.5,8.9,10.5,12.6,13.8,13.3,12.4,9.1,8.4,7.7
1949,6.5,7,5.6,8.8,10.4,12.9,14.9,14.2,13.9,11.1,9.1,6
1950,6.4,5,7.5,8,10.8,13.3,15.2,15.8,13,10.3,7,3.6
1951,5.2,5.3,4.8,6.6,10,12.1,13.4,14.2,13,11.1,8.5,6.6
1952,3.9,4.9,6.5,9.6,10.3,11.6,14.1,13.8,10.8,9.6,5.7,5.9
1953,6.5,5.9,8.3,7.4,10.2,13.3,15.1,15,13.7,11.6,9.1,7.9
1954,5.5,4.7,6.4,8.7,11.4,13.5,13.7,14.1,11.9,9.5,7.7,6.4
1955,4.1,2.9,5.3,8.9,9.4,12.7,16,15.5,14,9.6,8.8,4.5
1956,4,4.9,5.9,7.4,11.2,12.1,13.6,13.3,12.6,9.8,8.3,6.8
1957,7,5.2,7.5,9.3,10.2,12.4,13.6,13.4,12,10.2,8,5.9
1958,4.6,3.5,4.2,7.8,9.4,12.6,14.5,14,14.3,11.3,9.4,5.7
1959,3.1,6.9,7.9,9.1,11.3,13.4,15.1,15,14,11.9,8.9,7
1960,5.1,5,6.8,8.8,12,14,15,15,13.8,10.2,7.9,6.2
1961,5.3,6.8,8.1,7.7,10.4,12.8,14.1,14.7,13.6,11.2,7.7,4.6
1962,6.1,5.8,3.8,7.8,9.5,13,13.3,13.8,11.9,10.7,6.8,5.7
1963,3.4,3.9,6.5,8,10.2,13.5,14,14.7,12.3,10.6,7,5.6
1964,7.2,6.2,6.8,8.6,11.1,12.8,13.6,13,11.7,10,8,5.3
1965,4.7,5.9,5.5,8.2,9.2,12.8,13.1,13.7,12.8,11.1,5.3,4
1966,4.2,3.9,6.2,7.2,10.2,13.6,14.2,14.3,12.4,10,6.6,5.5
1967,5.4,6.4,6.9,7.6,9.5,12.6,14,13.9,13.2,9.8,8.3,5.7
1968,4.9,3.8,6.2,8.1,8.6,12.9,14.3,14.6,13.3,10.2,7.3,5.9
1969,6,2.8,4.6,7.9,9.7,13.8,14.3,16,12.4,11.4,5.2,5.5
1970,4.6,3.6,4.9,7.3,10.8,14.2,13.3,14.4,12.4,9.7,6.7,6.5
1971,6,6.7,6.4,8.4,11.5,12,14,14.4,13.1,11,7.1,7.7
1972,5.5,6,7.2,8.7,10.7,12.4,14.6,13.6,11.9,10.9,7.4,8.1
1973,7.2,5.4,8,6.7,9.8,12.2,13.9,13.9,12.2,9.3,6.1,5.4
1974,6.9,6.4,7.2,9.5,10.8,13.3,14.3,14.9,12.6,9.4,7.9,6.8
1975,6.3,6.6,6.1,7.1,9.3,12.4,13.9,15.3,12.2,11,8,7
1976,4.8,6.1,5.8,8.1,10.9,13.5,15.2,15.7,11.7,11,8.5,4.3
1977,4.8,4.7,7.1,7,10.4,11.8,14.1,14.6,11.7,11,7,7.3
1978,4.8,3.6,6.8,7,11.1,12.6,12.9,13.7,12.2,10.7,8.1,4.9
1979,3.4,3.3,5,7.5,8.5,12.4,12.9,13.6,11.9,10.3,7.2,5.6
1980,4.5,5.5,5.4,8.8,10.7,13.8,14.4,14.1,13.3,8.7,6.7,6.1
1981,4.9,5.3,6.4,7.7,10.3,12.2,14,14.5,13.5,8.2,7,3.2
1982,4.8,6.6,6.9,8.5,11.1,12.9,14.8,14.5,12.3,10.6,7.9,5.7
1983,6.3,4.8,6.8,6.8,9.8,12.4,14.4,14.1,11.7,10.2,8,6.7
1984,3.9,6,5.5,8.5,10.4,12.9,14.4,15.6,12.3,11.1,8.3,7.6
1985,4.3,5.4,5.9,7.6,10,12.4,14.7,14.8,12,11.2,5.5,5.4
1986,4.3,4.2,6.7,7.3,10.9,13.1,13.9,13.6,11.2,10,8.1,6
1987,4.3,4.9,5.1,9.4,10.1,11.7,14.3,14.2,12.8,10.3,8.1,7.4
1988,5.9,5.7,5.7,7.2,10.8,13.2,14.7,14.4,12.8,10.2,7.7,8
1989,8.3,6.6,7.3,8.2,10.7,13,14.4,14.2,12.8,10.4,8.3,6.2
1990,6.9,6.8,7.6,8.2,10.9,12.9,14.5,15,12.5,10.5,7.8,6.4
1991,6.1,4.9,7.6,8.5,10.4,11.7,15.9,15.6,12.7,10.3,8,7.3
1992,7.4,6.9,6.6,7.9,11.9,14.8,14.4,14.4,12.2,9,7.4,6.4
1993,5.7,6.1,7.2,8.2,10.4,11.6,12.9,13.2,12.2,8.6,7.6,4.7
1994,5,4.6,5.7,7.8,9.8,11.8,15.4,14.5,12.2,9.6,9,6.6
1995,5.2,5,5.3,6.9,9.3,12.8,14,15.2,12.9,11.4,7.7,4.1
1996,6.6,4.2,5.7,8.5,9.1,12.5,13.6,14.9,13.3,10.7,5.2,4.7
1997,6.2,6.6,6.9,7.3,9.8,12.4,15.2,16.8,12.9,9.6,8.8,7.1
1998,6.1,7,6.4,7.7,11.1,12,13.5,13.2,13.1,9.2,7.1,6.3
1999,5.5,4.4,6.9,8.4,10.1,12,13.9,14.7,13.9,10.9,8.8,5
2000,6.5,6.5,6.9,7.3,11.3,11.6,13.3,14.3,13.1,11.2,8.7,6.4
2001,6.1,4.1,5.5,7.6,11.1,11.8,14.3,14.4,12.2,12.2,7.5,5.7
2002,6.7,5.5,6.9,9.2,11.1,14.9,15,16.3,14,9.5,8.6,7
2003,5.7,6.4,8.8,9.5,10.7,14.2,16.7,16.5,13.8,9.4,9.3,6.5
2004,5.6,5.8,8.1,9.7,11.2,12.9,14.1,15.9,13.6,10.5,8.4,7
2005,6.3,5.7,7,9.1,9.8,12.5,14.5,14.2,12.8,10.8,8.1,7.1
2006,7,6.3,4.4,7.9,10.6,13,16.2,15.4,15,11.6,9,8.4
2007,6.6,6.4,8.4,10.2,10.3,13,14.3,14.2,11.9,11.2,7.3,7.4
2008,6.3,7.6,6.3,8.8,12.1,13.1,15.6,15.9,14.3,10,7.7,6.8
2009,6.6,5.2,7.8,10.3,11.9,13.8,16.4,15.9,13.9,10.2,9.2,5.9
