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