1901,9,9.7,10.2,10.9,11,9.8,10,9.8,9.5,9.9,9.8,9.3
1902,8.9,9.5,10,10.6,10.6,9.9,10.6,10.4,9.8,10,9.9,9.3
1903,9.4,9.9,10.4,11.1,11,9.9,10.3,9.9,9.5,9.9,9.6,9.2
1904,8.8,9.8,10.1,11,11.1,10,10,9.8,9.5,9.9,9.8,9.3
1905,9,9.7,10.2,10.9,11,9.8,10.2,9.8,9.5,10.1,10,9.5
1906,8.9,10,10.2,10.9,11.3,10.2,10.2,10,9.7,9.9,9.6,8.7
1907,8.7,9.9,10.4,11,11.2,10,10.1,9.8,9.5,9.8,9.6,8.5
1908,8.9,9.5,10.5,11.2,11.7,10.1,10.2,9.8,9.9,10.8,9.4,8.8
1909,8.6,9.4,9.9,10.4,10.8,9.6,10.2,10,9.6,9.8,9.6,9.3
1910,8.9,9.7,10.4,11.1,11.3,10,10.5,10.1,9.5,9.9,9.9,9.6
1911,9.1,9.6,10.5,11,11.3,10.1,10.1,9.9,9.5,10.1,10,9.4
1912,8.8,9.6,10.1,10.7,10.8,9.6,9.7,9.5,9.2,9.7,9.8,9
1913,8.8,9.5,10,10.7,10.9,9.6,10,9.8,9.5,9.9,9.8,9.3
1914,9,9.7,10.2,10.9,11,9.8,10,9.8,9.5,9.9,9.8,9.4
1915,9,9.7,10.2,11,11,9.7,9.9,9.7,9.5,9.9,9.8,9.2
1916,8.9,9.8,10.1,10.8,11,9.8,9.9,9.8,9.5,9.9,9.9,9.3
1917,9,9.8,10.2,10.8,11,9.8,9.9,9.7,9.5,9.9,9.9,9.4
1918,8.9,9.8,10.2,10.8,11,9.8,10,9.8,9.5,9.9,9.8,9.3
1919,9,9.7,10.2,10.9,11,9.8,10,9.8,9.5,9.9,9.8,9.3
1920,9,9.7,10.2,10.9,11,9.8,10,9.8,9.5,9.9,9.8,9.3
1921,9,9.7,10.2,10.9,11,9.8,10,9.8,9.6,10,10,9.5
1922,9.2,9.9,10.5,11,11.1,10,9.9,9.8,9.6,10,10.1,9.6
1923,9,9.2,10.2,10.4,11,9.4,10,9.3,8.9,9.3,9.2,8.8
1924,9.1,9.5,10.3,11.1,11.2,10.2,10.1,10.4,9.6,9.9,9.9,9.5
1925,9.1,9.7,10.2,10.9,11.2,10.1,10.3,10.1,9.7,9.8,9.8,9.2
1926,8.4,9.6,10,10.5,11,10.1,10.5,10,9.8,9.7,9.6,8.6
1927,8.5,9.1,9.7,10,10.2,9.4,9.6,10,9,10.1,9.2,8.9
1928,8.3,9.5,10,11,11.1,9.6,10,10.1,9.4,9.9,9.9,9
1929,8.5,9.6,9.9,10.5,10.6,9.3,9.8,9.2,8.9,9.9,9.8,8.9
1930,9,9.5,10.2,10.9,10.6,9.4,9.8,9.2,8.8,9.2,9,9.3
1931,9,9.7,10.2,10.9,11.2,9.9,10.1,9.9,9.6,10,9.8,9.4
1932,9,10,10.2,10.9,11,9.8,10,9.8,9.5,9.9,9.8,9.3
1933,9,9.8,10.1,11,11,9.8,9.9,9.9,9.6,9.9,9.4,9.3
1934,8.7,9.4,9.8,11,10.9,10,10.3,9.8,9.2,9.9,9.7,9.4
1935,8.7,10,10.1,10.6,10.6,9.9,9.5,9.4,9.4,9.8,9.3,9.1
1936,9.1,9.7,10,10.7,11,9.9,9.7,9.3,9.1,9.8,9.1,9.2
1937,9,9.6,10.1,11,11.3,9.7,9.8,9.7,9.5,9.8,10.2,8.8
1938,8.9,9,10.1,10.9,11,9.6,9.6,9.3,9,9.8,9.5,9.1
1939,8.4,9.7,10.4,11,11.1,9.8,10.5,9.9,9.7,9.8,9.8,9.1
1940,9.8,10.4,10.5,9.9,11.4,10.1,10.2,10,9.3,9.7,10,9.2
1941,9.5,10.7,10.5,11.4,11.7,9.9,9.8,9.9,9.1,9.7,9.4,9
1942,9.2,11,10.2,11.3,11.3,10.1,9.6,9.4,8.5,10.2,10.7,9.9
1943,9,9.5,10.5,11.7,11.7,9.8,9.8,9.3,9.1,10.2,10.4,10.5
1944,8.8,9.8,9.8,10.9,11,10.3,9.9,9.9,9.7,10.1,10.9,10.1
1945,9.4,9.7,10.9,12.5,11.5,9.4,10.3,9.5,9.2,9.9,10.2,9.4
1946,9.7,10.4,10.2,11.2,11.5,9.7,9.7,9,8.9,9.5,9.9,10.1
1947,9.7,10.1,10.3,10.3,10.7,9.8,10,9.4,8.6,9.9,10.6,9.3
1948,9,9.9,10,11.3,11.8,9.2,9.3,9.1,8.6,9.4,8.6,8.6
1949,8.9,10.2,10.3,12.2,11.7,10,9.8,10.1,8.7,9.6,10.3,9.8
1950,8.6,8.2,10.3,10.9,11,9,9.4,9.1,8.4,8.4,8.7,8.9
1951,9.6,10.2,10.6,10.4,11.1,10.1,10.1,9.5,9.9,10.1,10.3,9.4
1952,9.2,10.5,11.2,11.3,11.6,9.8,10,10,9.8,9.9,9.6,9.3
1953,9.4,9.6,10.2,11.2,11.3,10.5,9.9,10.1,9,9.4,9.8,9.3
1954,9,11,11.3,11.1,11.1,9.6,9.8,9.4,9.2,9.4,9.2,9.4
1955,10,9.3,9.9,10.5,10.8,9.7,9.9,9.7,9.3,10.4,9.3,9.3
1956,7.8,9.9,10.4,10.5,10.8,9.5,9.3,9.5,8.6,9.5,9.1,9
1957,9.3,8.8,10.1,10.9,11.3,9.7,10.2,9.6,9.7,10.4,10.5,10.7
1958,10.2,10.2,11.1,11.1,11.7,9.7,10,9.9,9.9,10.2,10,10.4
1959,10.1,10.7,10.3,11.2,11.5,10.1,10.1,10,10.1,11,10.5,10.3
1960,9.6,10.7,11.2,11.2,11.4,10.1,10.3,10.1,9.6,10.1,10.5,10.1
1961,9.2,10.7,10.8,11.6,12.4,10.6,10.8,10.5,9.4,9.7,9.8,9.4
1962,8.3,8.4,10,10.6,10.5,9.9,9.2,9.7,9.3,9.8,9.4,9.2
1963,8.9,9.5,9.4,10.5,11.2,9.2,9.3,8.8,8.4,9.6,10.6,9.7
1964,9,10.2,10.3,10.7,10.8,9.3,8.9,8.6,8.2,8.5,9.2,8.6
1965,8.5,8.6,10.2,10.2,10.2,9,9.6,9.4,9.2,9.2,9.8,8.9
1966,9.8,10.7,10.4,10.4,10.6,9.7,10.3,10,9.6,9.1,9.4,8.5
1967,8.7,9.8,10.3,11.2,11.1,9.2,9.7,8.7,8.9,9.3,9.6,10
1968,7.8,9.5,8.8,9.5,9.6,8.5,8.6,8.3,8.3,9.1,8.8,9.5
1969,9.2,9,9.2,10.8,10.3,9.2,9.3,8.5,9.4,9.9,9.4,9.3
1970,9.8,10.5,11.3,10.5,10.5,9.2,9.3,10.3,9.5,10.5,9.7,9
1971,8.4,8.7,9.3,10.6,10.4,8,8.5,9.7,8.2,9.7,10,8.5
1972,8.3,8.9,9.6,11.2,11.3,10.2,11.1,10,9.6,10.3,10,9.6
1973,9.4,9.8,10.5,11.2,11.1,9.7,9.2,9.9,9.6,10,10.1,8.7
1974,8.8,9.7,10.4,10.6,10.6,10,10.2,8.8,8.2,9.4,9.1,8.9
1975,8.8,9.9,10.2,10.9,10.6,9.9,10.2,9.3,8.9,9.4,9,8.4
1976,8.7,10,10.1,10.8,11.2,9.8,10,9.6,9.1,9.9,10.2,9.9
1977,10.5,10.2,10.8,10.8,10.7,9.6,9.7,9.8,9.8,10.1,9.3,9.6
1978,8.2,9.5,8.8,10.6,10.2,9.4,9.5,10.1,9.9,9.8,9.9,9.4
1979,9.2,9.2,8.4,10.4,11.1,9.8,10,10.7,9.8,9.3,10.1,10.4
1980,9.4,10,10.7,11.5,11.4,9.9,10,9.6,10,10.1,9.8,8.7
1981,9.5,10.3,11.3,11.2,11.2,10,10.1,10.4,10,9.7,9.7,9.1
1982,9.8,9.9,10.4,11.4,11.3,10.4,10.3,9.8,9.7,9.6,9.9,9.2
1983,8.9,9.8,11,12.4,12.1,11.5,11.1,11.5,9.9,11.1,10.6,8.5
1984,7.8,8.9,10.3,10.3,11.8,10.2,10.6,10.3,10.1,9.5,10,10.1
1985,10,9.6,9.9,10.4,10.8,9.9,10,9.8,10.2,10.4,10.5,10
1986,9.1,10.4,9.7,11.3,11.4,9.9,10.1,10.1,10,10.7,10.3,9.9
1987,9.3,10.4,11.5,12.2,11.4,10.8,11,10.7,11,11,10.6,10.2
1988,10.9,11.6,11.5,11.3,11.2,10.8,10.6,10.5,10.2,10.3,9.6,8.5
1989,8.8,8.5,10.1,10.3,10.3,9.2,10,10.3,10.1,10.6,10,10.7
1990,8.9,10.7,10.4,11.1,11.7,9.9,9.9,10.5,9.4,10.1,10,10
1991,9.2,10.3,10.2,10.6,10.8,10.3,9.6,9.1,9.2,9.9,8.6,8.1
1992,8.1,10,10.7,12.1,11,11.1,10.9,9.2,10.2,10.3,9.7,9.4
1993,8.2,8.5,9.6,11.5,11.3,10.7,10.3,10.8,9.6,9.9,11.6,9.3
1994,7.4,9.9,9.1,10.7,11.3,10.2,10.7,10.4,9.9,11.2,10,9.4
1995,8.7,9.7,9.4,11.4,11.5,11.8,10.9,10.8,10.9,11,11.1,9.9
1996,10.2,10,10.3,11.3,11.5,9.9,10.5,9.7,9.6,10.6,9.9,9.7
1997,10.1,10.4,10.8,11.3,11.9,10.7,10.9,10.7,11.5,11,10.2,9.5
1998,9.3,10.3,11.2,10.9,10.7,10.4,10.7,10.4,10,11.2,10.9,9.7
1999,10.3,10.5,10.8,11.5,9.6,10.8,10.3,11.1,10.4,10.3,10.3,9.2
2000,8.6,8.8,11.3,12.5,12.8,10.3,11.6,12,9.8,10.1,11.8,9.7
2001,10.4,12.4,12.1,11.6,11.9,10.4,10.5,11.3,11.1,11.4,10.6,9.8
2002,10.2,12.1,12,12.8,13,11.7,11.7,11.8,11.8,11.4,11.4,11.2
2003,11,10.5,12,13,13.2,11.4,11.3,10.7,11.3,11.3,12,12.2
2004,12.3,11.9,11.2,11.6,12.5,11.1,11.3,11.2,10.1,10,10.4,9.6
2005,8.3,11.4,12.3,12.8,11.5,11.1,10.4,10.7,10.9,10,11.8,11.4
2006,9.6,11.1,11.9,12.2,11.7,9.9,11.6,10.9,9.5,11.2,12,11.5
2007,11.1,11.7,11.1,12.3,12.6,10.1,8.9,10.4,10.9,9.5,10.1,11.2
2008,10.2,11.1,11.4,11.3,11.4,10.6,10.1,11.2,11.1,10.1,8.9,8.9
2009,9.6,11.2,12.1,12.7,11.8,10.6,10.8,11.6,11.4,11.5,11.6,12.3
