1901,8.7,10.8,11,9.6,12.5,14.5,15.8,16.4,14.9,15.6,12.3,8.7
1902,7.6,9.9,8.6,10.7,12.4,15,16,16.2,16.6,13.9,10.1,8.7
1903,8.7,7.2,9.3,10.4,12.8,16,15.1,16.4,15.7,15.3,11.8,9.3
1904,7.7,9.5,10,11.3,12.9,15.1,15.9,16.5,17.6,15.4,12.7,8.8
1905,9.4,11,11.9,11.6,12.1,14.2,16.7,16.2,15.9,14,11,8.2
1906,9.3,11.9,10.3,12.3,13.2,15.6,18.3,16.3,17.2,16.4,11.2,10.1
1907,8.3,12.5,9.9,12.8,13.4,15,16.5,16.1,15.3,15.1,11.9,10
1908,10,9.7,10.7,12.2,11.7,13.6,15.9,15.6,15.8,13.4,11.3,7.7
1909,9.9,9.1,8.9,11.7,11.7,14,15.1,15.5,16,14.8,11.1,8.1
1910,7.1,8.8,11.2,12.8,14.4,14,15.7,14,15.3,14.8,11.1,9.9
1911,9,8.1,10.8,10.9,11.9,14,16,15.9,15.1,14.5,11,8
1912,10.2,11.3,9.1,9.7,13.4,16.1,16.4,16.4,17.5,13.1,11.8,7.6
1913,6.9,9.5,9.4,11.1,12.8,15.1,16.9,18,17.9,14.3,12,8.5
1914,9.4,10.6,12.5,12.3,13.5,14.5,15.7,15.4,15.4,15.1,12.9,7.5
1915,8.9,10.1,12,12,12.5,14.7,16.1,17.5,16,13.8,10.9,8.7
1916,7,11.9,11,13,12.4,14.4,16.2,15.8,16.3,12.8,9.6,7
1917,6.7,9,8.3,10.7,11.4,15.1,17.3,16,17.9,15.5,12.3,10.7
1918,9,9.4,10.9,12.1,12,16.6,16.8,16.9,16.9,16.2,10.8,7.8
1919,8.8,9.2,9.2,12.2,13.6,15.5,16.4,16.7,16.1,13.2,10.8,9
1920,9.4,9.7,9.3,10.8,13,15.3,16.9,16.9,16.7,13.8,10.9,9.1
1921,8.2,10.5,11.4,11.3,12,17.1,16.9,16.9,16.4,15.6,12.2,10
1922,7,8.8,9.2,9.9,13.4,16.5,17.3,17.3,17.6,14.2,10,9.7
1923,8,9.5,11,11.2,13.8,14.3,16.7,17.8,17.4,14.7,13.5,8.9
1924,8.6,12.4,9.6,10.9,13.3,14.4,15.7,17.1,19,14.9,11.9,9
1925,8.8,11.4,11.4,12.4,15.3,16.1,17.6,16.6,16.3,15.7,11.9,10.9
1926,9.5,12.2,14.3,14.9,15.3,16.9,17.4,18.2,15.7,16.6,13.9,8.7
1927,9.9,11.2,10.3,11.5,14.3,16,16.3,16.4,15.8,15.4,12.8,8.9
1928,9.9,11,13,12.6,14.9,16.1,16.5,15.5,16.7,13.7,11.9,8.6
1929,7.6,8.7,9.9,10.1,13.6,16,16.1,16.4,16.1,16.1,11.7,11.3
1930,8.8,11.9,12,13.1,12.6,15.5,16.8,16.6,15.6,15.5,12,9.1
1931,10,12.4,12.9,13.5,15.9,17,18.5,17.2,16.7,14.2,10,8
1932,7.2,8.9,11,10.7,13.3,15.1,16.7,16.3,16.4,15.3,14.1,7
1933,6.5,8.1,10.3,10.6,11.4,14.4,15.6,16.9,15.1,16,13,8.9
1934,9.6,11.1,13.5,12.9,14.8,14.7,17.8,17.3,16.8,14.3,12.2,9.6
1935,9.3,10.9,8.2,12,13.3,16.2,17.2,16.9,16.8,14.5,10.5,9.4
1936,9.7,10,11.6,11.7,14.5,17.1,18.5,17.9,18,16.4,12.9,8.8
1937,5.8,8.7,10.2,11.7,14.1,15.6,17.7,17.2,17.7,16.4,12.5,10.5
1938,10.2,10.4,9.8,11.5,13.6,15.2,17.7,18.2,17.6,15.3,11.5,10.4
1939,9.4,8,9.8,12.3,14,15.5,17.3,17.9,19.2,16.2,12.9,11
1940,10.7,11.3,11.8,12.7,14,15.9,17.3,16.5,16.8,14.8,11.4,11.9
1941,10.7,12,12.9,11.5,15.7,15.6,16.1,18.1,17.1,14.4,13.1,10.4
1942,9.8,9.4,10.4,11.4,12.8,15.6,17.6,16.5,16.3,15,11.7,8.5
1943,8.8,10.9,11.4,12.2,14.3,14.9,15.8,16.9,18.4,15,13.2,9.9
1944,9.1,9.1,11.2,11,13.4,15,16.3,17.1,17.3,16.3,11.6,10.8
1945,9.3,11.2,9.2,12,13.8,16.2,18.6,18.2,18.7,15.9,11,9.6
1946,8.6,8.7,11.2,13,13.4,17.6,18,17.4,18.5,14.3,10.9,9.3
1947,7.2,11.3,12.7,13.6,15.3,17.7,19.2,17.9,17.5,15.7,10.2,9
1948,10.2,8.9,9.3,12,13.7,16.4,17,17.6,17,15.8,11.6,7
1949,6.4,7.7,10.4,13.4,14.5,16.2,16.1,17.2,18,13.9,14.1,8
1950,6.8,9.9,10.7,12.2,12.8,15.8,16.8,17.5,17.9,15.8,14.9,11.4
1951,8.4,9.9,10.8,11.7,14.5,14.9,17.3,17,17.9,15.8,12.4,8.6
1952,7.5,10.2,9,12.7,15.3,15.2,17.6,17.6,18.5,15.7,11.1,9.5
1953,10.9,9.7,10.5,11,13,15,17.1,17.2,17.7,15.3,12.3,9.6
1954,8.4,12,9.9,12.9,14.4,15.9,17.9,16.5,17.1,14.8,12.6,9.1
1955,7,9,11,10.3,14,15.4,16.1,16.8,16.1,15.3,11.2,10.3
1956,9.3,7.9,10.3,11.9,14.4,16.2,16.5,16.3,18.3,14.2,12.9,9.3
1957,7,11.7,12,13.1,14.6,17.8,18,17.4,18.2,15.8,11.6,9.9
1958,9.6,12.1,9.8,13.1,15.8,17.2,17.8,18.7,19.7,17.1,12.4,12.4
1959,10.4,9.7,13,13.8,14.3,17,18.4,18.5,17.3,17,13.2,10.1
1960,8.2,10.3,12.3,13,14.8,17,18.1,17,17.4,14.8,11.1,9.2
1961,10,11,10.7,12.8,13.8,17.2,18.4,19.2,17.9,15.7,11.1,8.4
1962,8.7,9.5,9.9,13.7,13.4,15.4,15.8,18.5,16.3,15.5,12.3,9.9
1963,7.7,13.4,10.6,11,14.1,15.6,17.4,17.6,19.4,16.3,11.6,9.1
1964,8.1,9.8,9.8,11.8,13.1,16.1,18,17.7,17,17.1,10.9,10.3
1965,9.5,10.4,11.1,12.7,13.7,14.6,17.2,19.5,16.8,17.8,12.7,7.8
1966,8.1,8.8,11.4,13.9,14.3,16.8,17.1,17.6,18.2,16.7,12.6,9.7
1967,9.6,10.8,10.8,9.2,15.4,14.9,18.2,18.1,19.6,17.1,13.5,7.9
1968,8.6,12.9,11.9,12.9,14.1,16.7,17.6,18,17.9,14.9,11.8,7.8
1969,8.5,8.9,10.7,12.1,15.2,16.4,17.3,17.3,17.8,15.9,13.3,10.3
1970,10.4,11.9,12.2,11.2,15.3,16.2,17.8,17.6,18,14.4,12.5,8.3
1971,8.8,9.8,11,11.3,13.4,16.3,17.5,18.8,18.5,14.1,10.5,6.9
1972,7.7,11.5,13,12.4,14.6,17.8,18.3,19.1,17.5,16.5,11.4,7.4
1973,8,11.3,9.9,12.8,14.9,18.2,16.9,17.3,17.5,15.2,10.7,9.6
1974,8.7,9.6,11.2,12.4,13.3,16.5,17.5,17.2,17.5,15.7,11.8,8.7
1975,9.2,10.3,10.7,9.8,14.3,15.3,16.9,17.5,17.6,14.7,11,9.3
1976,9.4,10.3,10.5,11.5,14.9,17.9,18,18.5,18.1,16.8,14.2,9.6
1977,9.1,12,10.1,12.9,12.9,16.4,17.6,19.3,17.4,16.1,12.8,11.6
1978,11,11.4,13.8,12,15.9,16.5,17.4,18,18.4,15.5,10.4,6.9
1979,8,8.8,11.5,13.2,15.4,16.9,18.3,18.3,20.4,16.3,11.7,9.8
1980,10.4,12.4,11.5,13.2,13.6,16.2,18.5,17.9,17.5,16.2,12.4,10.8
1981,11.4,11.9,11.4,13.5,15,18.9,17,17.4,17.1,14.1,13.4,10.6
1982,7.7,11.8,10.5,12.9,14.2,15.5,17.6,18.4,17.8,15.9,11.6,9.6
1983,10.3,11.7,11.8,12,15.1,16.8,18.5,19.8,20.2,17.3,12.1,10.8
1984,10.2,10.8,13,12.6,17.3,16.3,18.8,19.2,20.7,14.9,11.2,8.7
1985,8.7,11,10.1,14.6,14.2,17.5,19.6,18.2,17.4,14.9,10.7,10
1986,12.1,12.4,13.5,12.9,14.7,17.1,17.1,17.8,15.7,16,13.2,9.8
1987,8.8,11.5,11.7,14.5,16.2,16.7,17.3,18,18.1,17.5,12.1,9
1988,9.5,12,13,13.8,14.8,16.4,18.6,18.2,17.6,15.6,12.1,8.7
1989,8.4,9,12.6,14.4,14.6,17.3,18.1,16.9,16.8,15.3,12.6,10.2
1990,9.3,9.1,11.3,14.6,14.6,17.8,18.7,18.7,18.5,16.2,11.9,6.6
1991,9.1,12.5,9.5,12.2,13.6,15.1,17.3,18.7,17.7,16.7,12.9,9.5
1992,9.3,12.7,12.8,15.5,16.3,16.8,19.2,19,17.9,17.2,12.8,8.8
1993,8.8,10.2,13.5,13.5,15.7,17.9,16.9,18.7,17.3,16.5,11.9,9.7
1994,10.6,9.9,13.1,13.5,14.7,17,16.4,18.1,17.9,15.5,9.5,9
1995,11.1,13.1,12,12.9,13.9,16.9,18.9,18.4,18.5,16.8,14.6,11.4
1996,10.9,12.6,12.8,14.6,15.6,17,18.3,18,17.1,15.8,12.7,11.3
1997,10.3,11.1,13,13.9,17.9,17.2,18.3,19.9,20.4,16.5,13.7,9.6
1998,10.9,11.3,13,12.8,14.4,16.7,17.9,18.6,17.9,15,11.4,7.6
1999,9.2,9.7,9.7,11.4,13.1,15.5,17.2,17.7,17.1,16.4,13,10.2
2000,11,11.5,12,14,15.5,17.7,16.9,18,18.9,15.2,10.6,10.5
2001,9,10.1,12.7,11.5,17,17.5,17.9,17.7,17.4,16.4,13.2,10
2002,8.8,11.5,11.5,13.3,14.2,16.5,18.3,18.1,18,15.4,13.7,10.5
2003,12.1,10.9,12.7,12,15.1,17.3,17.9,19.3,18.9,17,11.5,10.2
2004,9.6,10.6,14.6,14.5,15.7,16.8,18.7,19.4,19.4,15.5,11.9,10.3
2005,9.9,12.3,13.4,13.1,16.3,16.8,18.4,18.1,16.9,15.9,13.6,11
2006,10.5,11.3,9.9,12.9,15.7,18,19.7,18.3,17.2,16,13.4,10
2007,8.9,11.4,13.4,13.6,15.1,16.7,18.5,18.6,18.2,15.7,12.8,9.1
2008,9.1,10.8,11.5,12.4,14.7,17,17.9,18.5,18.2,17.1,14.1,8.7
2009,10.8,10.7,11.5,13,15.4,17.4,17.5,18.9,18.8,16.3,12.9,9
