1901,6.9,7.4,8,9.4,9.2,7.8,7.7,7.5,7.1,8,8.4,7.6
1902,6.8,7.3,7.9,9.2,8.9,7.9,8.1,7.9,7.3,8.1,8.4,7.6
1903,7.1,7.6,8.1,9.5,9.2,7.8,7.9,7.6,7.1,8,8.2,7.5
1904,6.7,7.4,8,9.5,9.2,8,7.7,7.5,7.1,8,8.4,7.6
1905,6.9,7.4,8,9.4,9.2,7.8,7.8,7.5,7.1,8.1,8.6,7.7
1906,6.8,7.6,8,9.4,9.4,8.1,7.8,7.7,7.2,8,8.2,7.2
1907,6.7,7.5,8.1,9.5,9.3,7.9,7.8,7.5,7.1,8,8.3,7.1
1908,6.8,7.2,8.2,9.6,9.7,8,7.8,7.5,7.4,8.6,8.1,7.2
1909,6.6,7.2,7.8,9.1,9.1,7.7,7.8,7.6,7.1,8,8.3,7.6
1910,6.8,7.4,8.1,9.6,9.4,7.9,8.1,7.7,7.1,8,8.4,7.8
1911,7,7,7.9,9.3,8.9,8,7.2,7.3,6.8,7.7,8.2,7.1
1912,6.6,7.3,7.8,9.1,8.8,7.4,7.1,7,6.5,7.7,8.4,7
1913,6.5,7,7.6,9.1,9.1,7.4,7.7,7.5,7.1,8,8.4,7.6
1914,6.9,7.4,8,9.4,9.2,7.8,7.7,7.5,7.1,8,8.4,7.7
1915,6.9,7.4,7.9,9.6,9.1,7.6,7.5,7.4,7,7.9,8.5,7.4
1916,6.7,7.6,7.7,9.1,9.2,7.7,7.5,7.5,7.1,8,8.5,7.5
1917,7,7.6,8,9.2,9.2,7.7,7.6,7.4,7,8,8.5,7.7
1918,6.8,7.7,8,9.2,9.3,7.7,7.7,7.5,7.1,8,8.4,7.6
1919,6.9,7.4,8,9.4,9.2,7.8,7.7,7.5,7.1,8,8.4,7.6
1920,6.9,7.4,8,9.4,9.2,7.8,7.7,7.5,7.1,8,8.4,7.6
1921,6.9,7.4,8,9.4,9.2,7.8,7.7,7.5,7.3,8.2,8.9,8.1
1922,7.3,7.8,8.4,9.6,9.5,8.2,7.6,7.4,7.3,8.3,9,8.1
1923,6.9,6.8,8,9.1,9.2,7.4,7.7,7,6.5,7.4,7.9,7.1
1924,7.1,7.6,8.2,9.7,9.6,8.4,8,8.3,7.5,8.4,8.9,8
1925,7.1,7.3,8,9.4,9.5,8.4,8.4,8.1,7.4,7.9,8.4,7.5
1926,6.3,7.3,7.8,9,9.4,8.2,8.5,8,7.5,7.8,8.3,6.9
1927,6.5,6.8,7.7,8.3,8.2,7.1,7.3,8,6.9,8.4,8.4,7.4
1928,6.2,7.1,8.1,9.7,9.5,7.6,7.9,7.9,7.4,8.4,8.9,7.6
1929,6.4,7.4,8,8.9,8.9,7.1,7.4,6.8,6.4,8,8.4,7.2
1930,7,7.3,8.1,9.4,8.7,7.2,7.3,6.8,6.5,7.2,7.7,7.6
1931,7,7.5,8,9.3,9.6,8.1,8,7.7,7.4,8.3,8.4,7.7
1932,6.9,7.9,8,9.4,9.2,7.8,7.7,7.5,7.1,8,8.4,7.6
1933,6.9,7.5,8.1,9.7,9.4,8,7.8,7.7,7.3,7.9,8,7.4
1934,6.4,6.6,7.3,9.5,9.4,8.1,8.1,7.7,6.9,8.1,8.4,7.8
1935,7,7.7,8,9,8.9,7.9,7.2,7.2,7.2,8.2,8.2,7.5
1936,7,7.5,8,9.4,9.2,7.9,7.3,7,6.8,7.9,8.3,7.4
1937,6.9,7.4,8.1,9.8,9.7,7.8,7.5,7.4,7.3,8,8.8,7
1938,6.8,6.8,8,9.4,9.2,7.6,7.3,7.1,6.7,7.9,8.2,7.3
1939,6.2,7.2,8.2,9.6,9.5,7.7,8.2,7.8,7.5,7.9,8.5,7.4
1940,7.5,7.9,8,8.3,9.8,8.1,8,7.7,6.9,8,8.9,7.6
1941,7.1,7.9,8.3,9.8,9.9,7.9,7.5,7.7,7,7.9,8.2,7.5
1942,7,8.4,8.1,10,9.4,8.3,7.4,7.4,6.3,8.2,9,8.1
1943,6.7,7.2,8.3,10.3,10.2,7.9,7.7,7.3,6.8,8.1,8.7,8.3
1944,5.9,7.3,7.8,9.7,9.5,8.3,7.7,7.8,7.7,8.2,9.5,8.4
1945,7.2,7.2,8.3,10.9,10.3,7.5,7.9,7.5,7,8.3,8.9,7.9
1946,7.2,7.6,8,10.1,10.2,8.1,7.8,7.2,6.8,8,8.9,8.7
1947,8,7.7,8.4,9.4,9.1,8,8.1,7.3,6.5,7.9,8.9,7.6
1948,6.9,7.3,8,9.9,10.3,7.4,7.1,7,6.5,7.7,7.1,7
1949,6.7,7.4,7.9,10.5,10,8.1,7.8,8.1,6.7,8,8.9,8
1950,6.7,6,8,9.6,9.1,6.9,7.3,7,6.1,6.7,7.5,7.3
1951,7.6,8.2,8.3,8.6,9.2,8.1,7.9,7.3,7.9,8.5,9.1,8
1952,7.2,8.3,9.3,10.3,10.3,8,7.8,8,8.1,8.5,8.4,7.7
1953,7.6,7.2,8.2,10,9.6,8.8,7.8,8.2,7.1,7.8,8.6,7.9
1954,7.2,8.4,9.1,9.8,9.6,7.7,7.8,7.5,7.2,7.9,7.7,7.8
1955,7.6,7.2,8.1,9.2,9,7.8,8,7.9,7.3,8.1,8.2,8
1956,6.1,7.2,8.3,9.5,9.2,7.8,7.1,7.6,6.6,8,7.5,7.2
1957,7.5,6.8,8,9.8,9.7,8,8,7.7,7.8,9,9.3,9
1958,8,8.2,8.7,9.5,9.7,7.7,7.7,7.9,7.9,8.5,8.9,8.5
1959,7.9,8.7,8.3,9.8,9.6,8.1,8,8.1,8.1,9.6,9.6,9
1960,7.7,8,9.1,9.9,9.7,8,8.2,8,7.5,8.4,9.2,8.1
1961,7.1,8.3,8.5,9.6,10.2,8.4,8.8,8.3,7.8,8.1,9.4,8.7
1962,7.5,6.5,8.2,9.5,9,7.7,7.2,7.8,7.6,8.3,7.7,8
1963,7.1,7.5,8.1,9.5,9.6,7.5,7,6.5,6.3,7.9,9.4,8.5
1964,6.8,8.1,8.5,9.9,9.2,7.5,6.5,6.6,5.9,6.7,7.7,6.7
1965,6.3,6.7,7.2,9,8.8,6.7,7,7.1,7.3,7.8,8.5,7.3
1966,7.4,8.8,8.8,9.1,8.9,7.9,8.4,7.7,7.5,7.6,7.7,6.6
1967,5.7,7.1,8.1,9.4,9.3,7.6,7.8,6.9,7,7.8,8.5,8.3
1968,5.5,7.2,7.2,8.4,8,6.8,6.5,6.4,6.4,7.7,7.8,7.9
1969,6.7,7.2,7.7,9.3,8.3,6.9,7.4,6.5,7,8.3,8.5,7.1
1970,8.4,8.2,9.3,9.3,8.8,7.2,6.8,7.1,6.6,8.1,8.2,7.6
1971,6.6,5.9,6.4,9.2,8.5,6.2,6.9,7.4,6,7.2,7.9,7.1
1972,5.7,6.5,7.2,9.8,9.5,8,8.3,7.7,7.1,8.9,9.1,8.3
1973,7.4,8.1,7.7,10.3,9.5,8,6.7,7.7,7.1,8,8.6,6.6
1974,6.2,6.2,7.7,9.2,8.6,7.9,7.8,6.6,5.8,7.2,7.4,6.8
1975,6.5,6.9,8.5,9.4,8.9,8.1,7.8,7,6.7,7.4,7.5,6.4
1976,6.4,8.2,8,9.2,9.8,8.1,7.5,7.4,6.7,7.9,8.5,7.5
1977,8.2,8.1,8.6,9.2,8.5,7,7.4,7.2,7,8.3,8.1,7.5
1978,6.2,7,7.5,9.2,8.3,7.7,7.4,7.7,7.1,8.3,8.1,8.1
1979,7.9,7.7,6.3,9.3,9.6,8.1,7.9,8.6,7.6,6.7,8.4,9.1
1980,6.6,6.9,8,9.8,9.7,7.4,7.4,7.6,7.6,8.1,8.4,6.8
1981,6.9,7.7,8.7,9.3,9.2,7.6,7.1,8,7.3,7.8,8.1,7.2
1982,6.7,7.4,7.6,9.4,9.4,8.5,8.2,7.6,7.7,8.2,8.6,7.4
1983,7.2,7.5,8.1,10.3,9.8,9.1,8.2,8.5,7,8.9,8.6,6.5
1984,5.7,5.9,7.4,8.2,9.9,8.1,8.5,7.8,7,7.4,8.7,7.9
1985,6.8,8.2,7.4,9.2,9,7.5,7.8,7.4,7.4,8.3,9,8.1
1986,7.4,7.3,7.6,9.6,9.5,7.7,7.5,7.3,7.3,8.6,9,8.5
1987,7.1,7.4,9.3,10.4,9.6,8.2,8,8.1,8.2,8.8,9,7.6
1988,8.7,8.5,9.3,9.8,9.2,9,7.8,8.1,7.5,8,8,7.2
1989,7.9,6.1,7.9,8.8,8.9,7.8,7.7,7.9,7.8,8.4,8.5,8.2
1990,6.8,8.7,8.8,9.5,9.7,7.3,7.3,8.2,6.9,8.1,9.1,8.1
1991,6.9,7.4,8.3,9.2,9.2,8.3,7.2,6.8,6.6,8,7.4,6.9
1992,6,7.8,8.7,10.6,9.4,9.4,8.7,7.1,7.9,8.4,8.3,7.6
1993,6.1,6.1,7.4,10,10,8.5,7.6,8.1,7.3,8.5,9.7,7.8
1994,5.2,7.6,6.1,9.1,9.5,8.2,8.6,8.3,7.7,9.4,8.9,8.2
1995,6.8,7.5,7.3,9.4,9.9,9.5,8.7,8,8.2,9.4,9.5,8.4
1996,8.1,8.1,8.4,9.9,9.8,7.9,8.1,7.7,7.1,8.5,8.5,7.8
1997,8.1,8.2,7.6,9.8,9.9,9.1,8.5,8.3,8.9,8.7,8.1,8
1998,7.3,8.1,8.9,9,8.4,8.5,8.5,8.2,7.5,9.7,9.9,8.2
1999,8.4,7.8,8.7,10.1,8.5,9.5,8.1,9,8.6,8.3,9,7.5
2000,6.2,6.8,9.4,11.3,10.6,8,9.5,9.7,7.6,8,10.4,7.8
2001,8.1,9.7,9.8,9.3,9.4,8.1,7.7,8.6,8.5,9.1,8.8,8
2002,7.6,8.9,9.7,10.8,10.8,9.3,8.7,9.2,9.3,10,9.3,9.3
2003,7.9,8.1,9.3,11.1,11.1,9.4,8.7,8.4,8.3,9.3,10.4,10.1
2004,9.6,9.4,8.9,10,10.3,8.7,8.6,8.7,7.6,7.8,8.9,7.7
2005,6.4,8.9,9.5,10.9,9.6,8.8,7.9,8.2,8.2,8,9.2,9.5
2006,7.4,8.5,9.3,10.1,10.9,7.8,8.9,8.3,6.9,8.9,10.1,9.1
2007,8.4,8.5,8.3,10.1,10.3,8.2,7.2,8,9,7.8,8.6,8.9
2008,7.9,8.4,8.3,9.7,9.3,8.3,7.6,8.8,8.4,8.3,7.8,7.3
2009,7.5,8.3,9.3,11,9.9,8.8,8.4,9.3,8.8,9.5,9.5,10.2
