1901,9.2,9.8,9.4,9.2,8.8,7.6,7.1,8.6,9.3,9.2,9.4,9.3
1902,9,9.1,9.4,9.1,8.8,7.4,7.7,8.2,9.3,9.1,9.9,9.7
1903,9.5,10.6,9.5,8.5,8,7.1,7,7.7,9.1,8.7,8.9,8.3
1904,8.3,8.7,8.6,8.5,7.7,7.6,6.7,8.1,8.8,8.7,9.7,9.3
1905,9,9.8,8.9,9,8.5,8,7.4,8.1,8.8,9.3,9.7,9
1906,9.1,9.6,9.4,9.3,8.4,7,7,7.9,9.1,8.4,9.7,8.5
1907,8.7,8.5,9.6,8.5,8.3,7.5,6.8,8,9.1,8.8,9.7,9.5
1908,9.3,9.1,9.4,9,8.6,7.9,6.8,7.6,8.6,8.2,9.2,9
1909,8.6,8.8,9.4,8.3,8.6,6.6,6.7,7.5,9,8.8,9.2,8.8
1910,8.4,8.9,8.6,8.9,7.7,7.2,6.6,7.7,8.5,8.4,9.6,8.8
1911,8.6,9.7,8.4,8.9,8,7.3,7.3,8.2,9.1,9.3,9.9,10.2
1912,10.5,10.5,10.3,9.7,8.7,7.6,6.7,8,8.9,8.9,8.9,9.3
1913,9.3,9.5,9.5,8.6,7.9,7.1,7.3,8,8.6,9.3,10.2,9.8
1914,9.4,10.3,9.9,9.1,8.7,7.6,7.2,8.5,8.9,8.8,9.4,10.2
1915,10.4,10.5,10.8,10.3,9.2,7.4,7.3,8.4,8.6,9,9.2,9.8
1916,9.5,9.6,9.5,9.4,8.1,5.9,5.5,6.8,8.9,8.4,8.2,9.2
1917,9.1,9.2,9.9,9.1,8.1,7.4,6.6,7.7,8.1,8.5,9.6,8.3
1918,9.4,9.2,10.2,8.7,6.7,9.2,7.9,10.1,9.7,9.5,10.3,10.3
1919,10.3,10.7,10.3,9.5,8.9,7.8,7.1,8.2,9.2,9.6,9.8,9.4
1920,9.2,9.4,9.5,9.3,7.9,7.3,7.2,7.8,8.8,9,9.7,9.3
1921,9.4,9.2,9.8,8.8,8.5,5.1,5.8,7.3,8.4,8.8,10.1,10.3
1922,9.6,9.9,9.8,9.9,8.8,7.5,7.8,7.8,9.4,9.1,10.2,9.3
1923,8.9,9.5,9.6,8.8,8.8,7.9,7.7,8.6,9.8,9.1,10.5,9.8
1924,10.5,9.8,9.8,9.5,8.7,7.7,7.2,8.1,9,9.2,9.6,9.3
1925,9,8.7,9,9.2,9.2,8,7.1,9.3,9,10,10.4,10.3
1926,10.8,10.6,9.9,9.5,8.9,8.2,7.3,8.7,10,10.9,11.7,11.1
1927,10.5,10.4,10.6,9.4,8.7,7.8,7.3,8.7,10.3,11,11.6,11.4
1928,10.7,11,9.9,9.4,9.5,8,7.3,8.7,10,10.2,11.7,11.1
1929,10.8,10.6,10.5,9.4,9,8,7.3,8.4,9.7,10.2,11.2,11
1930,10.1,10.2,9.8,9.4,8.5,8,7.3,8.1,9.1,10.4,11.1,11.5
1931,10,9.8,9.9,9.7,8.6,7.7,7.1,8.5,9.7,10.6,11.8,10.7
1932,10.2,10.2,10,9.5,8.7,7.8,7.9,8.7,9.8,9.9,10.1,9.9
1933,9.7,10.2,10.1,9.4,8.6,7.6,7.1,8.2,9.7,9.8,10.1,9.8
1934,9.8,9.4,10,9.4,8.9,8,7.3,8,9.2,10.4,10.9,10.9
1935,10.1,10.3,10.4,9.3,8.2,7.8,7.3,8.1,9.7,9.6,10.5,10.2
1936,9.9,10.6,9.8,9.4,9,7.5,7.4,8.3,9.7,10.2,10.7,10.4
1937,10.2,9.8,10.5,10.5,9.5,9.1,9,10.1,10.6,10.5,11.8,11.1
1938,10.7,10.4,10.5,10.7,9.6,8.4,8.4,9.6,10.8,10.1,11.5,10.9
1939,10.3,10.4,10.6,11.4,9.8,9.6,9,8.6,10.2,11.1,11,10.5
1940,10.4,11.6,11.2,10.5,10.2,9.2,8.9,9.3,11.2,11.7,12.4,10.8
1941,11.2,11.2,12,10.8,10.8,8.5,8.7,10.1,11.4,12.2,13.2,12.3
1942,11.9,12.6,11.7,11.5,10.6,10.2,9.7,11.3,11.3,12.3,13.1,9.9
1943,12.5,11.7,12.1,12,11,10,9.8,10.4,10.9,11.8,13.1,11.8
1944,11.9,10.9,10.5,11.9,11.4,10.4,8.7,10.3,12.1,11.9,12,12.2
1945,11.9,11.4,11.5,11.9,11.1,7.8,9.4,10.7,11.7,11.3,12.6,11.5
1946,11.9,12.4,11.8,9.6,9,8.8,6.9,9.2,10.6,11,11.8,10.1
1947,11.6,11.8,11.7,11.3,10.7,8,7.1,8.4,9.8,10.2,10.7,8.9
1948,10.4,9.6,9,8.9,9.5,8.1,6.9,8.8,9.5,10,10.7,9.6
1949,11.4,9.3,9.8,8.9,7.7,6.6,6.7,6.9,8.8,9.2,10.2,9.9
1950,9,9.1,8.9,8.8,7.3,6.6,6.4,8.1,9.7,10,10.9,9.8
1951,8.9,8.4,8.5,8.1,8.8,8.3,8.2,9,10,10.2,10.5,9.5
1952,9.3,9.1,10.1,7.9,7.7,5.4,5.8,7.2,8.8,9.7,9.6,9.2
1953,8.8,9.4,9.1,9.1,7.9,7.2,6.1,8.4,10.3,9.5,9.8,9.5
1954,9,9,8.3,8,7.2,7,6.3,8.2,9,8.6,9.6,10.1
1955,9.1,8.9,8.7,8.6,7.3,7.1,6.1,7.5,8.9,9.3,10,9.4
1956,8.4,8.5,9.2,7.4,6.8,6.2,6.3,7.3,9.3,8.9,9.6,9.1
1957,8.6,8.9,9.5,9,9.1,8,6.7,8.3,9.2,9.9,10.6,10.2
1958,10.8,10.9,10.5,10.2,8.8,9,9.2,8.3,10.1,10.1,9.2,9.7
1959,9.4,9.8,10.1,10,9.1,8.7,8.5,7.1,8.6,9.4,10.2,9.9
1960,10.4,10.1,9.6,8.2,7.9,8.3,7.9,9.8,10.2,9.8,9.4,10.4
1961,10.6,9.8,10.2,9.8,9.9,9,9,9,9.9,10.3,10.5,9.5
1962,9.8,9.6,9.1,9.8,10,8.7,8.5,9.2,10.3,10.6,11.9,9.5
1963,9.3,9.1,9.7,9.9,9.5,8.8,9.1,10.1,9.6,10.6,11.1,11
1964,10.7,10.8,9.4,9.6,7.8,6.6,6.4,9.1,9.7,10.1,10.3,10.5
1965,9.9,9.5,9.2,9.2,8.4,7,7.1,9,9.9,11.1,11.7,10.9
1966,10.3,9.9,9.2,9.3,7.6,6.6,6.3,8.5,9.5,9.8,10.8,10.2
1967,9.9,9,8.6,8.9,8.1,6.5,5.8,7.6,9.3,9,10.4,9.5
1968,9.6,9.6,9.1,8.8,8.7,7.3,7.1,8.5,9.7,9.8,9.9,10.4
1969,10,10.4,10.5,10.1,9.5,8,7.1,8.1,9.7,10.7,11.3,10.4
1970,9.6,10.2,9.6,9.6,8.3,8,5.4,8.2,9.1,10.3,11,9.1
1971,9.4,9,9.4,8.8,8.1,7.3,7.4,8.1,9.9,9.5,10.7,9.6
1972,9,9.7,9.3,9.7,8.6,7.9,8.1,8.3,9.6,11,11.3,11.2
1973,9.9,10.6,10.5,9.7,8.7,7.7,7.1,8.3,9.1,10,10.6,9.8
1974,8.9,8.6,9.4,9,7.9,6.8,6.7,7.1,9.4,9.7,10.5,9.7
1975,8.9,9.7,9.2,9.5,7.9,7.3,7.6,7.9,8.9,9.5,10.3,9.5
1976,9.2,9.1,9.2,8.7,7.7,7.1,7.3,8.3,8.8,10.9,11,10.8
1977,10.4,9.5,10.2,10.1,8.6,7.4,7.8,8.8,9.9,10.2,10.5,10.4
1978,9.7,10.7,10.5,10,9.5,8,7.6,7.6,9.6,10.5,10.9,10.6
1979,10.7,10.5,10.1,9.7,9.4,8.3,7.6,8.6,11.1,10.9,11.6,10.6
1980,10.9,10.8,10.5,10,8.8,8.6,7.8,9.4,9.9,10.1,11.2,10.9
1981,9.3,8.4,9.2,9.1,9,8.3,7.3,8.1,7.8,7.8,9.2,10.1
1982,10.3,9.4,10.1,10.1,9.6,9.3,8.4,7.7,8.6,9.3,10.5,10.1
1983,12,11.1,11,11.4,9.2,9,8.9,9.4,9.9,9.1,11.2,10.1
1984,8.6,8.3,9.3,9.4,7.9,7.3,7.8,8,9,11,9.3,10.1
1985,10.1,9.2,10.8,7.8,8.6,4.4,6.2,7.7,8.3,9.9,9.1,9.2
1986,9.3,8.7,9.1,9.6,7.6,7.2,7.1,8.4,9.1,9.1,10.4,10.5
1987,10.5,9.7,10.9,10.7,8.7,7.8,6.9,9.2,10.5,10.8,10.6,10.7
1988,9.5,10.4,9.3,9.4,8.4,6.8,5.8,8.3,9.3,9.7,10.5,9.9
1989,8.4,9.1,9.1,8.2,7.8,4.7,6.4,7.8,9.1,9.3,9.4,9.4
1990,8.9,9.7,9,8.5,8.5,6.8,7.1,7.3,9.4,9.9,10.4,10.1
1991,8.8,10,9.9,9.5,8.9,8.1,7.1,7.9,9.1,10,10.4,10.4
1992,11,11.6,11.5,10.3,9.5,8.3,7,8.4,7.8,8.2,9.1,9.1
1993,9.4,10.9,11,9.4,9.1,8,7.9,7.7,9,9.5,10.2,10.1
1994,9.8,9.8,11,10,9.4,8,7.6,8.4,9.5,10.2,11.2,11.2
1995,10.9,10.9,10.2,10.8,9.7,8.4,9.1,9.8,10,10.5,10.8,10.3
1996,10.1,9.7,10.2,10.3,9.7,8,7.4,8.2,9.6,9.6,10.1,9.7
1997,10,9.5,10.2,9.7,9.3,8.6,8.5,8.2,9.7,10.7,10.9,11.3
1998,11.7,11.8,12.1,11.8,10.2,8.8,8.9,9.6,10.2,10.1,10.9,10.6
1999,10.4,9.9,10.1,9.9,8.8,8.3,7.6,8.8,9.4,9.6,10.9,10.3
2000,9.5,9.3,9,10.3,9.5,8,7.5,8.8,10,9.3,11.3,10.1
2001,9,9.7,9.5,9.8,9,7.9,7.7,7.8,9.8,9.9,10.9,10.4
2002,10,9.4,9.6,9.7,8.4,7.7,6.5,7.8,9.2,9.8,10,10.1
2003,10,10.1,10.2,9.2,8.5,7.4,7.2,7.3,9.5,9.8,11,10.3
2004,9.8,9.8,9.9,9.7,8.4,6.6,6.8,7.5,9.2,9.9,10.8,10.5
2005,10.6,9.8,10.1,9.9,9,7.6,7.5,8.6,9.2,9.6,9.9,9.8
2006,9.6,9.4,10.5,9.3,7.9,7.9,7.3,7.3,10,10.1,10.3,9.8
2007,10.7,9.9,9.7,9.7,8.8,7.3,7.5,8.6,8.7,9.2,10.3,9.9
2008,9.5,9.5,9.3,9.5,8.2,7.6,7.8,9,9.5,9.8,10.8,10.1
2009,9.8,9.8,9.8,9.8,8.5,8.1,7.7,8.9,10,10.3,11,10.1
