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