1901,28.1,27.6,27.9,26.1,24.2,22.1,21.5,22.3,23.9,25.8,28.2,27.4
1902,28.1,27.7,27.2,27.1,24.3,22.8,22.7,23.1,25.7,26.1,28.1,28.3
1903,28,28,27.9,27.2,25.4,23.2,21.5,23.3,25.6,26.9,27.3,27.3
1904,27.1,27,26.7,26.3,23.9,22.8,21.1,22.7,23.3,26.8,28.4,27.2
1905,28,27.6,26.9,25.6,24.5,24.3,21.4,23.6,25,27.9,27.6,28.1
1906,29,27.5,27.8,26.1,24.6,22.5,21.7,22.4,24.5,26,26.8,27.7
1907,28,27.3,27.1,26.3,24.4,22.4,20.5,22,24.5,27.4,27.5,27.7
1908,27.9,27.5,27.8,26.8,23.3,22.9,21.7,23.5,25.3,28,28.5,27.8
1909,27.7,27.9,27.6,26.4,24.1,21.8,22.3,23.1,25,26.4,27.8,27.9
1910,28.1,27.7,27.3,26.1,23.7,22,21.4,22.9,24.5,26.4,26.6,27.4
1911,27.4,26.9,26.8,25.3,23.9,21.7,21.2,22.5,24.1,27.2,27.9,29.3
1912,28.9,28.1,27.6,27.1,25.7,22.4,21.4,22.6,25.6,26.7,29.5,27.5
1913,27.6,27.6,27.6,26,24.9,21.9,21.8,23.5,25.3,27.9,28.4,27.5
1914,28.3,27.9,28.4,26.5,25,23.3,21.6,23.5,25.9,27.8,28.3,28.8
1915,28.4,28,27.8,27.4,24.5,22.9,23,22.9,25.3,28.4,28.7,28.4
1916,28.3,27.4,28.4,27,24.3,22.7,21.3,22.8,25.2,27.8,27.3,27.5
1917,28.1,28,27.7,26.4,25.5,23.3,22.5,23,24.4,26.3,27.9,26.7
1918,27.3,27.3,27.3,25.5,23.9,22.1,21.3,21.6,24.8,28.3,28.3,28.2
1919,28.3,27.7,27.9,26.6,23.1,22.3,21.2,22.9,25.3,26.2,28.1,28.5
1920,28.6,28.1,27.6,25.8,25.1,22.3,21.4,23.1,26.4,28.4,28.3,28.3
1921,28.3,28.3,27.9,26.1,24.2,22.8,21.6,22.5,24.9,27.6,27.7,27.6
1922,28.2,27.6,27.1,26.1,24.7,22.7,21.3,24.1,25.2,26.8,28.6,28.6
1923,28.6,27.9,27.9,27,24.7,22.7,22.2,22.5,25.3,27.4,29.5,28.2
1924,27.6,28.1,28.6,25.8,25.1,23.1,22,23.1,25.2,26.9,28,27.6
1925,27.5,27.5,27.5,27,24.2,23.6,22.3,22.5,24.8,26.8,28.2,28.6
1926,27.8,29,28.1,26.3,24.1,22.7,21.9,22.5,24.6,27,28.5,28.1
1927,27.8,27.9,26.9,26.1,23.7,22.1,21.9,22.5,24.5,26.8,28.2,28.2
1928,28.4,28,27.8,26.4,23.9,23.1,21.5,22.6,25.3,27.1,28.7,28
1929,28,27.5,27.5,26,24.2,23.1,22.5,22.5,25.7,28.2,29.3,28
1930,27.2,27.2,27.7,26.2,23.4,21.8,21.5,22.4,25.7,25.8,28.2,28.7
1931,27.9,28.3,27.7,26.5,25.5,22.6,22.3,23.8,25.2,27.6,27.7,27.9
1932,28,28.1,27.3,26.2,23.5,22.5,21.6,22.2,25.4,26.9,27.5,27.9
1933,27.7,27.6,27.3,25.7,23.9,23.1,22,22.5,23.6,26.7,28.5,27.3
1934,27.9,27.4,27.4,26.6,24.7,22.7,22.3,23.1,23.9,26.5,27.5,27.2
1935,27.3,26.8,26.9,25,24.3,21.5,21.2,21.1,24.9,27.1,27.1,27.1
1936,27.6,28.3,27.6,25.9,24.4,22.4,21.9,22.1,23.9,27.2,28.1,27.5
1937,27.6,28.2,27.5,26.2,24.3,22.4,21.6,22.3,25,26.5,28.3,27.6
1938,27.6,27.6,27.1,26.6,24.2,22.7,22.1,22.5,24.8,27.5,27.8,27.9
1939,27.6,28.6,26.9,25.9,24.4,21.9,21.5,22.8,24.1,26.9,27.7,27.5
1940,27.5,27.4,27.7,26.5,24.2,22.7,21.2,22.5,25.3,25.9,28.1,28.7
1941,27.4,28.1,27.1,27.3,25.1,23,21.9,23.3,25.5,28,28.8,28.9
1942,28.4,28.5,28.2,26.3,24.3,23.6,22.4,23.6,25,26,27.4,27.9
1943,27.3,27.5,27.2,26.9,23.7,22.1,22.2,23.7,23.7,27,28.5,27.5
1944,28.3,27.9,26.9,26,23.9,23,22,23.5,24.6,26.8,28.1,27.6
1945,27.6,27.7,27.8,26.2,24,21.6,21.5,22.3,23.6,26.8,27.1,27.7
1946,27.7,27.3,26.8,26.6,23.9,22.3,21.8,22,24.8,26.7,27.1,27.5
1947,27.9,28.2,26.8,27,24.2,22.7,22.3,23.1,25,27.2,28.7,28.5
1948,28.1,27.9,27.9,26.9,24.8,23.1,22.7,23,24.9,27.4,28.1,28.3
1949,28.9,27.7,27.3,26.2,24.6,22.4,22.3,23.4,25.2,26.7,28.5,28.2
1950,27.8,28.1,27.6,27,23.5,22.5,22.7,22.8,24.6,25.6,27.3,28.7
1951,27.1,27.5,27.1,26.4,24.2,22.3,20.9,22.9,24.5,27.3,27.5,28.4
1952,27.8,28.2,27.3,26.4,23.9,22.7,22.3,23.6,25.3,26.9,27.1,27.9
1953,27.9,28.1,27.4,26.8,24.1,22,21.3,22.7,23.2,26.4,28,27.9
1954,27.5,28,26.9,26,24.5,21.6,21.9,22.8,25,27.1,27.5,28.3
1955,28,28.2,27,25.9,23.9,22.2,22.4,22.4,24.3,26.6,27.6,28
1956,26.9,28,27.7,26.2,25.1,23.6,21.9,23.6,24.4,26.3,27,27.2
1957,27.9,28.3,27.4,26.6,24.5,22.9,22.8,23.6,26,27.6,29.3,27.7
1958,27.9,28,27.7,27.1,24.8,23.2,21.7,22.7,25.3,26.8,28.5,28.2
1959,27.6,28,27.6,26.5,25.8,23.3,22.8,23.4,24.6,26.3,27.1,28.3
1960,27.2,28,26.8,26.1,24.4,23.4,21.8,23.6,25.2,27.1,27.7,28.3
1961,28.1,28.3,28,27.4,25.7,23.5,23.1,23,25.3,26.8,27.2,27.2
1962,27.5,27.7,27,26.7,23.3,23,22,23.3,24.7,26.7,28,27.7
1963,27.2,27.2,26.7,26.1,23.1,21.6,22.1,22.3,24.6,26.2,27,28
1964,27.6,28.4,27.6,26,23.6,22.2,21,22.3,24,26.6,27.3,26.9
1965,26.8,28,26.9,25.8,23.5,21.3,21.3,22.9,24.3,25.1,27.4,27.7
1966,28.1,27.8,27.5,26.4,23.9,23.1,22.8,23.5,25,25.8,27.4,28.3
1967,27.9,28.1,27.3,26.8,24.8,23.8,21.9,23,24.4,26.8,27.2,26.8
1968,27.6,27.4,26.8,25.5,24,21,22.1,23.5,24.5,26.6,26.6,27.8
1969,28.3,28.5,28.4,26.9,24.3,22.8,22.3,23.5,24.4,27.4,28.1,27.8
1970,28.2,27.9,27.4,25.6,24.4,22.8,22.7,24,25.8,26.3,27.8,28.1
1971,27.5,27.1,27.4,27,24,22.1,22.2,23.2,24.7,26.2,26.9,27.9
1972,27.9,27.3,27.2,26.3,24.6,21.5,21.7,22.2,24.7,26.3,26.5,28.4
1973,28,28,27.7,26.2,23.8,22.3,21.6,22.6,24.6,26.7,27.5,27
1974,27.2,26.9,26.4,25,23.4,21.6,21.8,22.6,23.4,25.5,27.4,27
1975,27,26.6,26.6,25.8,24.1,22,21.1,21.7,23.3,25.4,26.8,27.5
1976,27.1,27.1,27.1,25.8,23.7,22.4,21.2,21.1,23.9,25.6,28,27.7
1977,27.4,27.8,26.8,25.6,23.8,21.8,21.7,22.5,24.7,26.5,27.7,28.2
1978,28.2,28.2,27.4,26,23.8,22.3,20.6,23.6,24.8,27.1,27.3,26.5
1979,27.5,27.2,27.3,25.9,23.3,22,21.4,22.7,24.8,26.9,27.1,27.2
1980,27.5,28.5,26.8,26.3,23.9,21.5,20.9,22.1,24.5,25.6,28.2,27.6
1981,28.3,27.8,27.2,25.4,23,21.2,20.5,22.1,23.6,24.4,27.2,26.5
1982,27.5,27.4,26.8,25.6,23,22.3,21.8,22.4,23.4,25.5,26.8,27.7
1983,27.8,27.9,28.3,26.5,25.6,23.7,22.7,22.1,24.6,25.6,28,28
1984,27.5,27.6,27.5,25.9,25,22.4,22.2,22.2,24.2,26.4,27,27.4
1985,28,28,27.7,25.9,23.6,21.8,21.6,22.5,25.2,26.2,26.9,27.6
1986,27.4,27.8,27.5,26.7,24.1,21.9,21.4,22.5,24.2,25.9,27,27.7
1987,27.4,28.4,27.8,26.3,24.7,21.9,21.4,23,25.4,25.4,28.1,29
1988,28.8,27.6,28.2,27.7,24.7,23.4,22.6,22.8,24.5,26.8,26.3,27
1989,27.2,27.1,27.2,26.3,24.1,22.4,22,23.2,24.6,26.3,27.9,27.7
1990,27.8,27.9,27.1,26.5,24.9,23.7,21.6,22.3,23.9,26.5,27.4,28
1991,28.2,27.8,27.5,26,24,22.2,21.8,22.5,24.6,25.4,26.8,26.9
1992,27.9,27.5,27.7,26.3,24.7,22.7,21.5,22.4,24.3,26.7,28.2,29.7
1993,27.7,28.1,26.5,26.8,25.5,23,21.6,22.7,24.2,26.7,27.5,28.9
1994,28.2,27.4,27,26.2,23.9,22.5,21.9,22.8,24.5,25.5,28.2,27.9
1995,27.9,28.3,27.7,26.8,24.8,22.3,22.4,23.5,24.5,27.7,28,27.8
1996,28.1,28.1,27.7,25.9,24.7,22.5,22.1,23.2,24.9,26.5,28.9,28.1
1997,28.6,27.4,28.2,25.7,23.1,23.6,22.4,22.7,25.3,26.2,27.8,28.5
1998,28.7,28.5,29.1,27,24.5,23.1,22,23.2,24.7,26.5,28.4,28.2
1999,28.1,28,27.9,26.7,24.4,22.9,22.1,23.1,24.7,25.3,27.9,28.3
2000,28.2,28.1,27.9,26.6,24.1,23.7,21.9,22.7,25.3,25,26.9,28.4
2001,27.8,27.9,28,26.4,24.8,22.5,22.2,23.3,24.8,25.9,28.8,28.3
2002,28.3,28.1,28.2,26.3,24.5,23.1,22.5,24,24.9,27.3,28.1,28.9
2003,28.3,27.8,28,26.1,24.8,23.2,21.7,22.4,24.9,27.2,28.4,28.4
2004,28.4,27.9,27.6,25.6,23.5,21.7,21.8,24,24.9,26.6,27.6,27.7
2005,28.3,29.1,28.7,27.3,25.3,23.7,21.9,23.7,25.4,27.4,28.8,27.8
2006,28.1,28.2,27.7,26.2,24.1,22.8,22.2,23.6,24.3,27,27.9,29.2
2007,28.2,28.3,28.1,27.1,24.5,23,21.9,23.2,25.5,26.9,28.6,28.7
2008,28.2,27.9,27.1,25.4,24.4,21.9,22.1,23.1,25.2,27.1,28.6,28.7
2009,28.8,28.5,27.5,26,24.2,22.5,21.9,22.9,25.3,26.9,27.9,28.6
