1901,10.1,10.5,9.8,7.5,6.4,4.2,4.3,5.8,8.8,9.5,9.5,9.6
1902,10.1,9.6,9.5,8.3,6.8,4.6,4.2,3.6,8.3,8.9,9.7,10.4
1903,10.6,11.3,9.2,7.1,4.9,3.6,3.9,4.3,8.1,7.9,8.5,8.9
1904,9,9.2,8.9,7.5,4.7,3.2,3.6,4.6,7.4,8.1,9.2,9.5
1905,9.7,10.3,9.1,7.3,6.4,4.5,3.8,4.7,7.4,9.9,9.9,10.1
1906,10.2,10.9,10.1,8.3,6.4,1.5,3.6,5,7.3,8.6,10,10
1907,10.1,10,10.4,7.1,4.7,2.6,2.9,3.9,7.6,8.5,10,10.6
1908,10.7,10.1,10.1,7.3,5.5,3.5,3.4,2.9,7.4,7,9.1,10.1
1909,10.6,10,9.2,7.5,4.2,1.8,2.8,4.4,7.7,8.3,9.3,9.7
1910,9.9,9.9,8.5,8.1,4.5,4,3.8,5,7.5,8.2,9.6,9.5
1911,9.6,9.9,8.2,7,4.3,1.9,2.4,3.6,6.9,8.4,9.9,10.8
1912,10.9,10.7,9.7,7.6,5.6,1.9,0.3,3.3,5.7,7.1,8.7,8.8
1913,8.5,8.3,8.5,6.6,2.9,1.6,1.5,2.8,5.4,7.5,8.4,9.2
1914,9.1,8.7,10.1,6.7,3.9,2.4,2.5,2.2,5,7.2,7.6,9.1
1915,10.7,9.8,9,8.2,5.7,1.5,3.2,3.1,4.8,7,8.9,9.5
1916,10.1,9.2,8.7,6.6,3.6,1.4,2.1,3.2,6.1,6.8,7.8,9
1917,9.1,7.8,8.6,6.7,3.5,1.8,0.2,3.8,4.1,7.4,8,8.9
1918,9.5,8.9,9.4,6.4,4.6,2.4,1.7,3.7,7.6,8.5,9.5,10.3
1919,11.2,11.1,9.6,8,6.9,2.3,3.1,3,7,9.2,10.2,10.5
1920,10.7,10.9,9.7,7.9,4.9,1.3,2,2.9,7.6,9,10.6,11.2
1921,11,9.5,10.1,7.3,5.2,1.5,1.5,4.1,6.7,8.9,9.6,11
1922,10.5,10.4,9.9,8,4.5,1.7,2.6,4,6.8,7.2,9.4,10.2
1923,10.6,10.5,9.4,7,4.1,2.1,2.2,4,6.7,8.8,8.9,9.9
1924,10.9,10.9,8.9,7.6,4.5,2.9,2.6,3.7,7.4,8.1,10.2,10.4
1925,10.1,9.6,9.1,7.9,5.3,2,2.1,4.2,7.5,8.4,10,10.7
1926,11.4,10.2,9,8.1,5,3.7,2.5,3.7,7.1,9.4,10.6,10.5
1927,10.5,10.1,9.7,7.2,4.2,1.7,2,3.9,7.4,9.5,10.7,11
1928,11.1,10.8,8.8,8.1,5.2,2.3,2.3,4.2,7.6,9,10.5,10.3
1929,11.3,10.2,9.5,7.4,4,2.2,2.4,3.9,7.4,8.2,9.8,10.6
1930,10.2,9.7,8.9,7.5,4.4,4,3,4.3,6,9.4,9.8,11.6
1931,12.1,11.6,9.8,8.2,5.3,2.8,2.4,4.9,7.1,9.8,11.1,10.7
1932,10.4,10.6,9.2,7.3,4.3,2.4,3.9,4.3,8,9.5,10.5,10.8
1933,10.4,10.2,9.8,7.1,5,1.6,1.4,4,7.6,8.3,9.5,10.9
1934,9,8.8,9.8,6.1,5.4,3.6,3.1,4.2,6.6,9,10.2,11.1
1935,10.6,10.6,10,6.3,4.4,3,2.9,3.9,7.4,9.4,10.2,11.3
1936,10.5,10.6,9.5,7.9,6.1,2.6,2.8,3.8,8,10.2,10.5,11.3
1937,10.7,10.9,8.3,6.1,5.2,3,2.8,5.6,8.2,8.7,11.5,11.2
1938,10.7,10.8,9.9,5.5,5.2,2.9,2,4.3,7.5,8.5,10.4,10.9
1939,10.4,10.4,9.6,7,5.3,3.2,2.6,4,7.8,9.5,10.7,10.9
1940,10.1,9.5,9,7.7,5.4,3,3.9,4.2,8.1,9.3,10.5,11.1
1941,8.6,8.3,9.4,9.1,4.1,1.6,2.3,2.7,5.5,7.6,9.2,10.8
1942,10,8.9,8.5,6,3.7,1.1,1.1,3.3,8.2,8.7,7.5,8.2
1943,9.2,7.9,9.1,8.2,5.5,2.7,5.1,5.2,6.5,9.6,10.1,9.9
1944,10.6,10.5,10.1,6.2,5.9,3.4,1.9,3.7,9.3,8.4,8.1,9.3
1945,10.1,9.3,10.2,7.4,3.1,4.4,4,7,7.8,7.9,9.1,9
1946,10.7,11.1,10.4,7.5,6.3,4.6,2.7,3.6,6.2,7.6,9.4,9.4
1947,9.4,8.5,8.7,8.3,4.5,3.3,2.8,3.8,7,7.3,9,9.3
1948,9.7,9.4,7.3,7.5,4.2,3.1,3.7,3.3,7.3,7.7,8.6,9.5
1949,8.4,9.5,8.6,6.6,2.8,2.2,2.9,4.5,8,10.9,9.1,8.5
1950,8.4,9.6,8.1,6.6,3,3.4,4.3,4.1,5.8,8.2,8.5,9.6
1951,9.9,9.5,10,7.3,4.3,2.4,3.7,3.3,6.8,8.2,9.3,8.4
1952,10.3,9.6,10.4,7.1,5.3,2.6,3.1,4.9,6.4,9,9.6,10.6
1953,10.2,10.5,9.7,7.4,5,2,1.8,4.7,8.1,9.2,10.7,10.4
1954,9.5,9.6,8.9,7.7,4.4,2.1,1.6,4.5,7.8,9,10.6,10.6
1955,9.8,10,9,6.8,3.8,3.3,1.6,3.4,7.4,8.1,9.9,9.6
1956,9.8,9,9.1,7.2,3.2,1.3,1.2,3.8,7.4,8.4,8,9.8
1957,9.3,9.9,9.2,7.3,6.1,2.5,0.5,4.5,6.3,8.5,9,10.9
1958,10.9,11,9.5,8.4,4.6,2.1,3.9,3.7,7,9.8,10,11.1
1959,11.1,10.1,9,8.5,5.2,2.1,2.6,3.4,6.5,7.7,8.5,9.4
1960,8.9,8.6,8.4,7,3,1.6,1.5,3.2,6.3,7.5,8.5,9.4
1961,9.6,9.8,8.8,7.8,5.5,1.9,2.1,4.1,8,8.8,9.3,9.9
1962,9.1,10.8,8.2,6.4,3.8,-0.2,1.1,3,7.4,8.1,9.6,8.9
1963,8.9,8.5,8.1,7.4,4.9,2.1,1.9,4.9,6.5,10.1,9.5,10.5
1964,10.1,9.6,8.6,8,5.7,2.5,2,5,7.1,9,9.2,10.2
1965,9.8,10.3,8.9,7.9,4.7,2.2,1.7,3.8,6.9,8.7,9.3,10
1966,11.1,10.7,9.6,7.5,4.7,2.3,2.6,3.5,6.9,9.8,10.4,10.6
1967,11,9.9,9.4,7.8,5.9,2.4,2,4.6,7.6,9.3,10.8,10
1968,10.1,9.6,9.4,6.7,3.9,3,3.3,5.1,6.1,9.4,10,11.5
1969,10.3,10.3,10.6,8.6,5.5,2.2,2.7,3.4,7.1,8.5,10.8,10.5
1970,10.6,9.4,9.3,8,4.9,3.6,2.9,4.5,7.5,9.6,10.6,10.3
1971,10.4,8.9,10.1,6.7,4.1,2.4,2.7,4.1,7.6,8.4,9.6,9.5
1972,9.6,9,9.6,6.7,5.1,2.5,3.8,4.4,7.6,8.8,11.4,10.7
1973,11.5,11,10.6,9.3,6.9,4.2,4.7,5.4,8.1,10,10.4,10.6
1974,9,9.2,8.9,7.2,5.2,3.4,2.7,3.9,6.9,8,7.2,9.8
1975,9.5,9.3,9.3,7.3,4.6,3.2,2.5,4.1,6.9,8,9.5,9.3
1976,8.9,9.1,8.2,5.7,4.4,2.3,3,3.8,6.2,8.1,8.5,9.9
1977,10,10.1,9,7.6,4.2,2.3,4.6,4.1,7.6,9.3,9.8,9.9
1978,9.8,10.1,9.1,7,4,2.8,3.8,3.3,6.8,8.7,9.4,9.4
1979,8.7,9.7,8.9,6.7,4,1.7,2.4,4.4,6.6,5.6,9.5,9.8
1980,10.2,9.6,8.6,7.6,4.1,2.4,3.6,4.3,6,8.9,9.5,9.7
1981,10.1,8.8,8.6,7.1,4.4,0.7,1.5,3.5,5.1,7.7,10.2,10.1
1982,10,10,8.8,7.6,4.2,1.7,4,4,6.6,9.3,9.6,10.3
1983,11.3,10.6,10,9.3,5.1,1.5,3.9,4.1,7.7,8.7,9.4,11.2
1984,9.7,9.8,10.2,8.2,6.9,3.2,3.5,4,7.1,10.3,10.1,10.7
1985,10.4,10.2,10,7.7,6.3,3.8,2.2,4.8,7.8,9.3,9.9,10.8
1986,11.2,9.8,9.7,8.3,6.1,4,1.4,5.9,7.3,8.7,10.4,11
1987,11.6,10.7,10,8,5.9,4.1,5,6.4,8.2,10.3,11.8,10.5
1988,11.9,11.4,10.4,8.5,6.5,2.6,2.5,6.8,8.2,10.1,10.4,11.4
1989,10.7,10.4,9.6,7.6,4.2,3.4,2.4,4.2,6.5,7.9,9,10.2
1990,9.9,9.5,10,8.1,5.5,3,1.5,4.4,6,9.1,10.5,10.7
1991,11.7,10.4,10.1,7.5,4.9,2.5,1.5,3.8,6.2,6.8,8.6,9.4
1992,9.9,10.1,9.3,7.6,6.6,3.9,2.6,3.9,6,9,9.3,10.2
1993,10.5,7.8,7.7,6.2,3.2,0.8,2.5,3.5,9,9,10.1,10.5
1994,10.3,10.3,8.5,7.9,6.2,3.5,2.8,4.3,6.9,9.4,10.3,10
1995,10.3,10,9.6,7.8,4.2,3.3,3.2,4.5,6.5,9.6,8.4,9.2
1996,9.1,9.7,9.3,8.6,4.9,2.2,2.2,3.9,5.8,8.4,8.3,9.4
1997,9.8,9.1,7.6,6.4,6.4,4.4,4.7,3.7,7.3,8,9.6,9.9
1998,12.6,11.3,9.6,8.8,5.7,2.5,3.8,2.3,5.6,7.3,8.5,9.6
1999,9.4,10,9,6.6,4,1.8,2.2,2.8,7.2,6.6,8.6,10.1
2000,10.6,9.1,9,8.2,3.5,2.4,0.7,4.1,5.6,8,9.5,8.9
2001,10.3,8.9,7.5,6.1,3.7,1.1,-0.8,3.3,4.6,6.1,9.9,9.4
2002,11.1,9.8,9.4,7.2,5.5,3,1.8,4.8,6.5,9.1,9.1,10.9
2003,10.3,10.7,10.2,6.5,5.4,3.2,2.8,3.5,5.7,8.3,9.1,10.7
2004,10.4,10.1,10,9.2,4.1,2.2,3.7,4.9,6.8,9.9,11.6,10.7
2005,10.2,10.4,10.3,9.2,5.9,2.8,3.3,4.2,5.3,7.1,10.5,9.2
2006,11.1,10.5,9.7,8.5,5,3.4,3.3,2.8,4.6,6.5,10.2,10.7
2007,9.8,10.7,9.5,7.7,4.7,4,2.4,3.9,6.8,8.3,10.4,9.8
2008,9.2,10,9.1,6.6,3.3,1.8,2.3,4.3,5.7,10.4,9.7,10.6
2009,10.1,10.4,10,7.3,5.6,2,3.1,3.7,6.5,8.2,10.7,11.3
