1901,7.7,6.5,7.5,6.5,5.8,2.8,2.5,3.4,5.6,3.1,6.6,6.8
1902,7.8,9,6.4,5.5,5,4.4,3,1.8,2.7,4.7,6.3,6.7
1903,8,7.9,7.9,5.9,3.6,3.5,2.9,3,3,4,7.2,7.7
1904,8.3,7.6,6.1,5.8,5.2,2.7,2.2,2.2,2.5,4.9,5.9,7.7
1905,8.1,7.8,7.9,5.5,5.2,3.9,3.2,3.2,3.9,5.4,5.6,6
1906,7.5,7.1,8.3,5.5,4,4.3,3.1,3.1,4,4.9,4.6,6.3
1907,8.1,9.4,6.3,6.3,5.6,4,3.5,4.2,4.2,5.9,6.6,6.1
1908,9.6,8.4,7.6,4.5,4.8,5.4,3.2,3.6,4.3,5.4,7.2,8.2
1909,7.5,7.6,8,7.5,5.3,3.5,2.7,3.1,4.2,5.6,7.3,7.6
1910,8.7,8.4,8.2,5.4,5.8,3.3,3.2,5.1,5.4,7.2,8.5,6.8
1911,8.2,8.2,8.9,6,5.9,3.3,2.9,4.4,4.5,6.3,8,7.9
1912,8.2,9.5,8.5,7.5,4.7,4.4,2.7,4.1,4.6,8.2,9.5,7.6
1913,8,8.6,6.8,5.9,4.8,4.1,4.2,3.9,4,6,8.2,8.6
1914,8.2,7.3,9,6.7,5.4,4.8,3.3,4.6,3.8,3.8,5.5,8.1
1915,8.2,8.7,7.2,5.9,5.3,4.1,3.6,4.4,4.6,6,7.5,8.6
1916,9,9.9,8.3,6,5.3,4.1,3.9,4,4.5,4.8,4.9,8.6
1917,8.5,9.3,8,6,4.5,4.2,3.4,4.4,4.9,6.2,6.4,8.1
1918,9.3,8.3,8.4,7.1,6.2,4.5,3.4,5,4.9,5.3,5.8,7.8
1919,7.8,10.1,8.1,7.2,5.1,4.7,3.5,4.2,4.8,5.4,6.2,6.4
1920,7.5,9.6,7.4,6.4,5.1,4.2,4.3,4.6,5.1,5.2,6.2,7.6
1921,9.1,9.8,8.2,6.6,5.4,5.7,4.7,3.8,5.7,5.1,7.9,7.7
1922,8.8,9.4,7.7,6.7,5.9,4.1,4.4,3.8,4.5,5.7,5.8,7.9
1923,7.9,7.9,7.1,6.7,5.2,4.2,4.3,4,4,5.4,5.6,7.6
1924,7.3,8.3,8.3,6.6,5.2,4,3.4,4.4,4.8,4.7,6.4,6.8
1925,8.4,8.5,7,6.8,5.8,4.8,3.4,2.9,3.7,4.3,5.8,6.6
1926,7.8,8.3,8.1,7.3,4.9,6.4,4.6,3.7,4.4,5.5,5.3,7.3
1927,8.1,7.6,7.3,6,4.7,3.2,3.1,3.7,3.6,5,6.2,8.6
1928,9.6,9,9.2,8.5,6.1,4.8,4.5,4.8,3.3,2.6,4.7,6.9
1929,7.9,9.7,6.9,6.5,5.3,3.4,2.2,2.9,3.1,4.4,5.3,6.3
1930,6.4,8.6,7.9,6.2,5.5,4.1,4.6,3.6,3.6,5.4,5.4,7.8
1931,7.1,7.7,8,6.3,6.4,4.6,2.9,3.4,2.8,4.1,5.5,6.1
1932,7.8,7.7,7.7,7.2,5.3,4.5,3.5,4,4.2,4,5.7,6.4
1933,7.2,6.9,7,5.6,5.1,4.5,3.7,2.6,4.3,5,5.8,7.6
1934,8.5,8.7,8.8,6.6,6.3,3.3,3.3,4,3.9,4.4,6.8,7.6
1935,8.2,9.7,7.1,7.1,4.9,4,3.6,4.2,3.7,4.1,6.2,7.9
1936,9,9.2,8.1,5.3,4.6,3.1,3.4,2.8,2.6,4.4,5.4,9.1
1937,7.5,9.1,8.2,5.2,4.5,2.2,3.2,3.9,4.7,6,7,7.6
1938,8.1,9.3,8.3,6.7,5.7,2.7,2.4,3.3,4,5.3,6.5,6.2
1939,7.4,8.1,7.6,7.4,7.1,4.4,2.8,2.9,3.6,4.9,6.4,6.5
1940,7.6,6.4,8,5.4,4.7,4,2.7,3.6,4.3,4.7,5.6,7.8
1941,7.7,7.7,7.3,6.5,5,4,2.8,2.8,3.4,4.2,5.6,7.2
1942,7.7,8.3,8.4,6.4,4.6,4.2,2.7,3.3,4.6,6.1,7.4,7.9
1943,8.5,8.1,6.7,4.9,3.6,2.2,2.2,1.9,4.4,4.4,5.7,6.9
1944,9,7.8,7.6,4.9,5,3,3.1,2.4,3.5,4.2,5.7,7.6
1945,8.5,8,6.1,5.1,4.6,4,2.6,3.5,3.7,4.9,6.8,7.4
1946,7.8,7.8,8.8,5.9,4.5,2.8,3,1.8,2.8,4.3,5.2,7
1947,8.2,9.6,9.4,6.5,6.8,3.5,2.9,2.4,3.4,4.8,5.9,7.9
1948,8.1,9.4,6.1,5.9,4,3.3,2.4,3.7,4.4,4.1,5.7,6.1
1949,7.7,6,7,4.7,4.3,2.2,3.4,3,3.3,4.8,7,6
1950,7.4,7.9,7,5.6,4.3,3.3,4,2.9,4.7,6.3,6.4,8.1
1951,10.4,9.4,8.4,4.8,4.9,3.2,2.8,2.1,3.9,4.6,5.3,6.8
1952,7.5,7.2,7.6,5.4,4.9,2.8,3,2.5,3.9,5.1,6,7.6
1953,8.7,9.3,7.9,6.1,5.4,2.2,1.9,2.3,3.2,4.7,5.3,6.3
1954,8.6,7.8,6.9,6.3,4.9,3.7,2.8,2.7,3.9,4.3,5.8,8.1
1955,8.3,8.5,7,6.1,4,3,2.8,3,3.4,5.3,4.7,8.4
1956,8.5,10.8,9.9,7.6,5.9,3.7,2.2,2.4,4.3,4.8,4.6,6.2
1957,6.5,8,7.4,6,4.6,4.2,2.7,3.9,3.5,3.8,5.4,6.8
1958,7,8.5,6.5,5.3,5.5,3.3,1.7,2.6,3.1,4.1,6.5,6.7
1959,8.9,9.1,7.5,7.4,4.8,3.5,3.3,2.4,3,4.4,7,8.7
1960,9.2,7.7,8.5,5.8,4.4,3.1,3.1,2.1,4,4.9,5.2,8.3
1961,9.7,9.2,8.7,7.2,5,3.8,3,3.7,4.1,6.2,6.4,8
1962,8.8,8.4,8.2,6.2,4.7,4.6,3.1,2.3,3.4,3.6,5.3,7.5
1963,9,7.8,7.3,5.4,3.3,3.1,2.7,2.8,3.6,6.4,5.7,6.9
1964,7.1,8,6.6,7.1,4.8,3.9,2.2,3.1,4.1,5.2,5.7,5.8
1965,7.1,7.6,6.9,4.9,3.9,3.6,2,3.4,4.2,4.4,4.6,8.1
1966,8,8.6,8.4,5.9,4.9,2.7,2.3,2.3,4.3,4.8,6.4,6.8
1967,7.5,8.2,6.9,5.6,4.8,4,3.2,2.9,3.4,4.6,4.9,6.2
1968,7.8,8.6,8.8,6.6,4.1,3.1,2.7,2.8,3.6,3.6,5.7,7.2
1969,8.1,10.5,8.6,6.1,5.2,2.9,3.7,3.6,2.7,4.4,6.8,6.2
1970,9.2,8.1,8,7.1,4.3,4.5,2.7,2.2,2.1,4.2,6.5,7.3
1971,10.3,10.9,9.6,7.6,5.2,3.9,3.1,2.5,3.6,4.6,5.9,8.4
1972,9.1,11.4,7.9,7.2,5.5,4.2,2.4,3.4,5,5.3,6.4,7.1
1973,8.7,9.8,7.5,7.5,6,3,3.4,3.2,4.5,5.9,6.6,9.2
1974,9.7,9.9,10,7.5,5.9,4.6,3,3.1,4,5.7,5.9,7.7
1975,8.1,8.9,7.8,6.2,5.3,4.1,3.8,3.5,4.6,5.4,7.6,7.9
1976,9.4,9.9,8.9,7,5.2,3.7,3.1,2.4,4,4.2,7.3,8.3
1977,9.6,9.4,9.3,6.4,4.9,3.9,3.3,3.6,3.8,5.3,5.8,7
1978,8.4,8.6,7.5,6.4,6.1,3.6,2.6,2.8,4.6,5.6,6.8,7.7
1979,9.6,9.7,8.8,6.2,4.4,5,3.7,2.6,4.1,5.6,7.2,7.2
1980,8.3,8.2,7.3,7.3,7.2,5.1,4,5,5.4,5.9,6.5,8.4
1981,10.4,10.4,8.9,7.5,5.7,4.6,3.2,3.6,5.1,5.5,6.5,7.9
1982,9.2,9,8.1,6.6,5.4,3.3,2.4,4.4,3.1,4.5,6.3,7.3
1983,7.8,9.8,8.3,6.1,5.8,3.2,2.7,4.6,3.7,5.3,6.5,8.2
1984,8.7,8.8,7.7,6.5,5,5.1,3.3,3.6,3.9,5.3,7.1,7.1
1985,8.4,7.9,9,7.9,5.9,3.4,3.1,3.8,4.4,5.6,7.4,9.6
1986,9.2,8.4,8.6,6.6,5,3.3,3.1,3.5,4.2,5.1,6.3,7.5
1987,7.6,7.7,6.5,7,5.7,4,2.8,3.5,4.5,4.8,7.5,7.5
1988,9.9,8.3,7.9,7.2,6.5,5.6,4.7,4.1,5.3,4.8,7,8.8
1989,10.1,9.9,9.3,8.5,4.9,2.6,2.9,3.3,4.9,5.1,7.3,8.6
1990,8.7,9.7,8.9,7.6,5,3.9,3.1,2.5,4.2,5.1,6.4,7.1
1991,8.9,7.7,6.6,5.6,5,4.8,3.5,2.1,3.6,4.8,5.3,7.4
1992,7.3,7.7,7.9,6.6,5.2,2.8,3.1,3,3,5.4,6.5,8.8
1993,9.1,9.3,7.9,6.9,5.3,2.4,3.9,3.9,4.3,4.5,5.1,7.3
1994,6.3,9.3,7.6,6.3,3.9,3.1,3.5,2.2,2.1,4.3,4.9,7.7
1995,9.1,9.4,7.6,5,4.8,3.3,2.3,3,3.3,4.1,5.9,6.1
1996,8.7,8.2,7.8,4.8,4.8,3.4,3.4,2.4,2.7,4.4,5.1,6.3
1997,8.5,9.1,6.4,4.9,3.8,3.6,2.3,2.3,3.7,3.5,4.5,6
1998,8.2,7.9,6.5,5.5,3.8,3.8,3.3,2.1,4,4,5.5,7.5
1999,9.7,10.7,8.5,6.3,6.6,4.7,3.8,4.4,5.6,6.2,6,8.3
2000,9.1,10,8.5,6.9,5,4.8,4.1,3.7,4.4,4.9,8.8,7.5
2001,10.2,10.2,9.2,6.7,5.3,4.3,4.8,3.9,6.1,6,6.6,6.8
2002,9.2,9.1,8.1,7.7,6.2,4.6,4.2,4.2,3.9,5.3,6.8,8.2
2003,9.5,9.6,8.3,7.2,6.5,4.3,3.8,3.7,2.7,4.1,6.4,8.3
2004,7.6,8.4,7.6,6.2,4.4,3.8,2.8,2.9,4.3,5.4,6.6,8
2005,8.5,8.4,7.7,7.2,5,5.3,4.6,3.8,5.1,6.5,7.9,9
2006,9,9,8.1,4.9,3.8,3.9,3.7,4.8,4.6,5.3,5.8,7.2
2007,9.7,10.5,8.7,7.4,7.6,3.3,3.8,4.5,4.8,5.3,7.7,9.1
2008,9.6,8.2,8.1,6.8,6.2,4.8,2.8,3.6,4.4,5.7,6.2,7.3
2009,8.8,8.9,8.5,6.8,6,4.7,3.8,4.9,4.7,4.9,7.6,8.3
