1901,6,4.2,5.7,9.2,12.2,14.1,17.3,16.3,14.7,11,7.5,6.2
1902,7.1,4.4,8.4,8.5,10,13.4,15.3,15.6,14.1,11.4,9.1,6.9
1903,6.9,8,7.8,8.2,11.8,13.7,15.5,14.9,13.9,11.7,8.7,5.7
1904,6.6,5.6,6.1,9.5,11,13.7,16.3,15.6,13.7,11.8,8,7.9
1905,6.5,6.8,7.9,9.2,11.5,14.4,17,15.2,13.4,9.1,6.6,7.7
1906,7.5,5.4,6.9,8.4,10.6,14.3,15.5,16.7,15.1,12,8.8,6.1
1907,6,4.9,7.9,8.7,10.6,12.6,15,15,15.2,10.8,8.6,7.4
1908,5.6,7.4,6.3,7.7,12.5,14.5,16,16,13.5,13.5,10.2,8
1909,6.4,5.6,5.6,9.9,11.9,13.4,15.6,16.7,13.4,11.8,6.9,6.3
1910,6.3,7,7.6,8.1,11.8,14.2,14.9,15.5,14.1,12.1,7.1,8.2
1911,5.7,6.4,6.7,8,13,14.9,18.1,18.2,15.2,11.5,7.6,8.3
1912,6.9,7.1,8.4,10.4,12.3,13.7,16,13.4,12.9,10.3,8.4,8.7
1913,7.2,6.4,7.4,8.7,11.5,13.6,15.8,16.7,15.1,12.9,9.8,7.2
1914,5.6,7.8,7.6,10.1,11.7,14.8,15.6,16.1,14.8,11.9,8.6,6.9
1915,6,5.8,6.6,9.1,12.4,14.3,15,16.2,14.6,11.4,6.3,7.8
1916,7.5,5.3,5.5,8.6,12.1,12.7,16,16.7,14.6,11.7,8.7,5
1917,3.7,3.9,5.9,6.9,12.6,14.6,16.5,15.7,14.5,9.6,9.7,4.6
1918,6.2,8.3,7.3,8.4,12.7,14,15.9,16.4,13.1,10.2,8.2,8.8
1919,5.5,5.7,6,8.4,12.6,14.4,15.4,17,13.9,10.1,5.4,8
1920,7.1,8.1,7.9,9.4,12.1,14.7,14.5,14.8,14.6,13,9.5,6.6
1921,9.1,7,8.3,9.5,12.1,16,18.5,15.8,15.4,14.1,9.8,8.7
1922,6.9,7.3,6.8,7.5,12.8,14.5,13.9,14.2,13.6,10.3,8,7.8
1923,7.1,8.2,8.4,8.9,10.6,14.1,17.3,15.9,13.4,11.2,5.8,7
1924,7.6,5.2,6.7,8.3,11.3,14.2,15,14.9,13.7,11.9,8.8,8.8
1925,7.9,6.7,6.6,8.5,10.9,15.8,16.2,16.2,13,12.5,6.5,6.2
1926,7.3,8.6,7.9,9.9,11.4,13.8,17.5,17.3,16,10.9,8.1,6.2
1927,6.9,6.9,8.4,9.2,12.8,13.6,16.2,16,13.4,12.2,8.2,6
1928,7.5,8.2,7.7,9.2,12.4,13.9,16.4,16,14.4,12.3,9.5,6.9
1929,4.6,5.4,8.1,8.8,11.5,13.9,16.3,15.8,16.5,11.3,9,8.1
1930,7.3,4.5,7.3,9.3,12,15.1,15.6,15.8,15,12.3,8.8,7.5
1931,6.5,6.4,6.6,9,11.3,14.6,15.1,15.7,13.5,11.5,9.9,7.8
1932,8.5,5.3,6.9,7.9,10.7,14.8,15.6,17.3,14.6,10.8,9.3,7.9
1933,5.6,6.1,8.7,9.4,12.5,15.1,17,17.7,16.4,12.1,8.2,4.5
1934,7,5.3,6.7,8.4,11.6,15.8,18.3,15.3,14.6,12,7.9,10.2
1935,6.9,7.4,7.4,9.3,11.3,14.1,17,16.5,14.8,11.2,8.5,6.2
1936,6.9,6,8.2,7.9,12.1,14.6,15.1,16.4,15.4,11.5,8.5,7.7
1937,7.7,7.9,5.6,10.3,12.1,14.4,15.8,16.8,14.4,12.2,8.5,6.1
1938,7.6,6.7,9.5,9.5,10.9,13.8,14.5,16.2,14.3,12,10.6,7
1939,6.9,7.6,7.8,9.3,12.2,15.1,14.8,16.3,15.2,10.5,10.9,6.2
1940,4.6,7,8,10,13,16.5,15.3,16.8,14.4,11.7,9,6.5
1941,4.4,5.9,7.5,7.8,9.8,14.8,16.1,15.5,15.5,12.5,8.9,8.2
1942,5.7,3.9,8,10.2,11.3,14.3,15.7,16.4,14.7,11.8,7.3,9
1943,7.9,7.8,8.4,11,12.2,14.3,16.5,16,13.6,12.1,8.8,6.7
1944,8.4,5.8,6.8,10.5,11.7,14.5,15.9,17.1,13.5,10.4,8.6,6.8
1945,3.6,8.2,8.7,10.7,12.2,14.5,16,16.4,15.5,13.7,9.9,8.8
1946,6.8,8.2,7.3,10.1,11.7,13.1,15.5,14.9,14.2,12.5,9.9,6.3
1947,5.4,2,6.7,9.5,11.9,14.7,16,18.8,15.8,12.9,10,7.4
1948,7.8,6.7,9.8,9.8,12.4,14,15.6,15.6,14.3,12.1,10.6,8.3
1949,8,7.8,7.6,10.1,11.3,15,17.4,16.9,16.7,13.5,9.1,8.5
1950,6.8,7.4,9.2,9.1,12.5,15.5,15.7,15.6,13.9,11.4,8.3,4.5
1951,6.6,5.6,6.4,8.2,10.4,14.2,16.4,15.3,14.8,11.9,9.9,7.9
1952,5.6,5.8,8.2,9.7,13.2,14.4,16.5,16.3,12.6,11.4,7.6,6.5
1953,5.7,5.7,7.2,8.9,12.7,14.2,15.5,16.1,14.3,11.6,9.8,9.7
1954,6.2,5.6,7.9,8.9,11.5,13.5,14.2,14.8,13.6,13,9.1,8.8
1955,6.2,4.3,4.9,9.9,10.6,14.3,17.6,18.7,15,10.8,9.1,9.2
1956,6.7,2.4,8.2,8.4,11.9,13.7,15.5,14.3,14.7,11.4,8.5,8.4
1957,7.1,7.4,10.4,9.8,11.5,15.2,16.5,15.9,13.7,12.3,8,6.8
1958,6.4,7.9,6.2,8.5,11.3,13.7,15.4,15.7,15.4,12.1,9.1,7.1
1959,5.8,7,8.6,10,12.6,14.9,16.7,17.1,16.2,13.8,9,8.1
1960,6.6,5.8,8.6,9.8,13,15.7,15.2,15.5,13.8,11.6,9.4,5.9
1961,6.6,8.7,8.7,10.7,11.7,14.2,15.5,15.7,15.2,11.8,8,6.2
1962,7,6.2,4.9,8.7,10.6,13.4,15.2,15,13.5,12,7.6,6
1963,2.4,3,7.5,8.8,10.6,14.3,14.9,14.9,13.4,12.2,9.9,5.3
1964,5.8,6.3,6.6,8.9,12.5,14,15.8,15.6,15.1,10.9,9.3,6.5
1965,5.6,4.3,7.2,9.1,11.6,13.7,14.7,15.2,12.6,12.7,7.4,7.7
1966,6.1,8.5,7.9,9.5,11.4,14.7,15.6,15.6,15.4,11.4,7.2,8.3
1967,6.7,6.9,7.6,9.3,10.5,14.2,15.8,15.5,13.9,11.6,7.8,7.1
1968,7.3,4.6,7.4,8.4,10.4,14.4,15.4,16.6,14.5,13.7,9.5,7
1969,7.5,3.9,6.6,8.9,11.3,14.1,16.2,16.1,14.9,13.9,7.7,6.6
1970,6.9,5.9,6.1,8,12.1,15.9,15.2,15.6,14.7,11.8,9.8,6
1971,7.1,6.5,6.4,8.7,11.5,13.3,17.2,16.2,15.6,13.3,8.3,7.9
1972,6.1,6.7,7.8,9.3,10.5,11.8,15.5,15.2,13.1,11.8,8.2,8.2
1973,6.9,6.4,7.2,8.3,11.6,14.6,15.5,16.8,15,11.4,9.4,7.4
1974,8.2,7,7.1,9.2,11,14.1,15.2,15.1,12.5,9.3,8.8,9.3
1975,8.2,7.7,6.6,8.8,11.2,15.1,16.9,17.5,13.6,11.6,8.9,6.7
1976,7.5,6.4,7.3,8.8,11.5,15.8,17.2,17.9,14,11.4,8.5,5.3
1977,5.4,7.2,8.4,8.3,11.1,13,16.4,16,13.9,13,8.1,8
1978,5.9,5.7,7.7,7.9,12,13.6,14.8,15.2,14.6,13.2,10.4,7.6
1979,3.7,4.9,6.4,8.6,9.8,13.7,16.1,15.2,13.8,12.6,9.2,7.9
1980,5.3,7.9,6.6,9.6,11.5,13.8,14.7,15.9,14.8,10.7,7.9,7.6
1981,7.4,5.6,8.9,9.2,11.3,13.7,15.7,16.9,15.2,10.2,9.4,5.8
1982,7,7.4,7.6,9.5,11.5,14.9,16.5,15.9,14.9,11.5,9.4,6.9
1983,8.1,4.4,7.8,7.7,10.6,14.6,19,18,14.6,11.5,9.7,8.3
1984,6.4,6.3,6.2,9.9,10.7,14.8,16.8,17.4,14.4,12.1,9,7.7
1985,3.8,6.1,6.6,9.6,11.5,13.7,15.9,14.7,15,12.2,6.8,8.8
1986,6.7,1.7,6.6,6.6,10.6,14.3,15.6,13.8,12.3,12.3,9.1,7.9
1987,3.6,5.9,6.6,10.5,11.1,13.2,16.3,16.3,14.6,10.9,8.5,8.1
1988,7.5,6.3,8.1,9.3,12.2,15.2,14.6,15.3,13.8,12.2,8.7,9.6
1989,8,7.7,8.9,7.8,13.9,15.3,18.9,17.1,15.1,13.2,9.2,7.7
1990,8.5,9,9.1,9.3,13.9,14.1,17.3,17.7,14.5,12.8,8.7,6.3
1991,5.8,4.6,8.8,8.8,12.2,13,16,16.9,15.9,10.9,8.7,7.3
1992,6.1,7,8.4,9.1,13.2,15.4,16.5,15.6,13.4,9.5,9.7,6.7
1993,8.4,6.9,7.9,10.3,11.6,14.9,15.5,15.5,13.4,9.7,7.5,8
1994,7.5,6.8,8.9,8.6,11.4,14.2,16.4,16.1,13.5,12.1,11.5,9.1
1995,7.6,8.5,7.3,9.7,12.1,15.2,17.6,18.3,14.3,14,9.5,6.3
1996,7.6,5.3,7,9.3,9.8,14.7,16.4,16,14.4,12.7,8.3,5.4
1997,4.8,8.4,9.5,10.5,12.5,14.4,16.3,18.1,15.3,13.2,10.3,8.2
1998,7,8.2,9.2,8.6,13.6,14.5,15.5,16.5,15.4,12.4,8.5,7.9
1999,7.8,7.5,8.2,10.2,13.2,14.1,17.3,16.9,15.6,12.1,9.3,7.4
2000,6.6,8.2,8.4,8.6,12.6,14.7,16.2,17,15.3,11.3,8.4,8.1
2001,6.1,6.7,7.9,9.2,12.6,14.6,16.5,16.7,14.2,13.9,9.2,5.9
2002,8.3,8.6,9,9.7,11.9,13.7,15.4,16.2,14.8,11.9,10.3,8.2
2003,6.2,6.4,9,10.6,11.9,15.4,17.1,18.2,15.1,10.8,9.9,7.3
2004,7.6,6.4,7.4,9.5,12.2,15.7,15.5,17,15.2,11.4,9.9,7.4
2005,8.2,5.6,8.6,9.6,11.7,15.9,17,16.5,15,13.4,8.4,6.8
2006,6.3,5.7,6.9,9.4,12,15.9,18.4,16.5,16.3,14,9.8,8.2
2007,8.1,8.3,8,11.2,12.4,15,15.5,16.1,14.4,12.3,9.4,7.6
2008,8.1,7.6,7.8,9,13.5,14.7,16,16.1,13.5,10.8,9,5.8
2009,5.9,6,8,9.6,12.1,15.4,16.1,16.2,14.1,13.1,9.9,5.9
