1901,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1902,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1903,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1904,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1905,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1906,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1907,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1908,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1909,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1910,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1911,27.5,27.5,27.3,26.6,25.7,24.7,23.9,23.9,24.4,25.3,26.2,26.8
1912,27.4,27.6,27.3,26.6,25.6,24.6,23.9,23.8,24.3,25.3,26.3,26.8
1913,27.3,27.5,27.3,26.6,25.7,24.6,24.1,24,24.5,25.4,26.3,27
1914,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27.1
1915,27.5,27.7,27.4,26.8,25.8,24.6,24,23.9,24.5,25.4,26.3,26.9
1916,27.4,27.8,27.3,26.6,25.8,24.7,24,24,24.5,25.4,26.4,27
1917,27.5,27.8,27.4,26.6,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1918,27.4,27.8,27.4,26.6,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1919,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1920,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1921,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.6,25.5,26.5,27.2
1922,27.7,27.9,27.5,26.8,25.9,24.8,24.1,24,24.6,25.5,26.5,27.2
1923,27.5,27.7,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1924,27.6,27.9,27.5,26.8,25.9,24.8,24.3,24.2,24.7,25.6,26.5,27.2
1925,27.6,27.7,27.4,26.7,25.9,24.9,24.4,24.2,24.6,25.4,26.3,27
1926,27.5,27.7,27.3,26.5,25.9,24.9,24.3,24.2,24.6,25.4,26.3,26.9
1927,27.5,27.7,27.4,26.4,25.6,24.5,24.1,24.2,24.7,25.6,26.6,27.1
1928,27.5,27.7,27.6,26.9,26,24.7,24.2,24.1,24.7,25.6,26.6,27.1
1929,27.5,27.9,27.6,26.7,25.9,24.6,24,23.9,24.4,25.4,26.3,27.1
1930,27.6,27.7,27.4,26.7,25.6,24.5,23.9,23.8,24.4,25.3,26.3,27
1931,27.5,27.7,27.4,26.7,26,24.8,24.2,24.1,24.6,25.5,26.3,27.1
1932,27.5,27.9,27.4,26.7,25.8,24.7,24.1,24,24.5,25.4,26.3,27
1933,27.5,27.7,27.4,26.8,25.9,24.8,24.1,24,24.5,25.5,26.3,27
1934,26.9,26.7,26.8,26.9,26.6,24.8,24.1,24.3,24.3,25.5,26.6,27.1
1935,27.9,27.6,27.5,26.1,25.8,24.1,23.4,22.9,24.6,26.1,26.5,26.8
1936,27.3,27.8,27.4,26.6,26.4,24.5,23.6,23.3,23.9,26.1,27.2,27
1937,27.6,28.1,27.6,27.3,26.6,25,23.9,23.9,25.1,25.9,27.3,27
1938,27.4,27.6,27.3,26.8,25.7,25,24.3,24,24.7,25.9,26.7,26.9
1939,27.1,28.1,27.2,26.8,26.5,24.2,24.2,24.4,24.6,25.8,26.6,27
1940,27.7,28.1,27.5,26,26.2,25.2,24,24.1,24.9,25.1,26.9,27.7
1941,27.7,28.3,27.9,27.3,26.3,24.1,23.7,24.1,25.2,25.8,27.2,27.9
1942,28.3,28.9,28.4,27.5,26.5,25.2,23.9,24.2,24.5,25.4,26.6,27.6
1943,27.8,27.8,27.9,27.6,26.6,24.7,23.3,23.9,24.1,25,26.9,27.9
1944,27,28.1,27.9,27.4,26.5,25.2,24.2,23.9,25,25.9,27.6,27.9
1945,28.1,28.1,28.2,27.9,26.8,24.1,23.9,24,24,26.2,26.8,27.8
1946,27.8,28.1,27.9,27.5,26.8,25.1,23.9,23.8,24.1,25.5,27.1,28.1
1947,28.6,28.4,28.1,27.2,25.7,24.6,24.3,23.6,24.6,25.3,26.5,27.1
1948,27.5,27.5,27.6,27.2,26.9,25.1,24.2,24.3,24.7,25.7,26.3,26.9
1949,27.3,27.1,27.3,27.1,26.4,24.8,24.5,24.8,25,26,26.9,27.3
1950,26.9,27.1,27.3,27,25.3,24.2,24.1,23.9,24.4,25,26,26.9
1951,27.5,27.9,27.4,26.4,25.7,25.1,23.9,24.2,25.2,26,26.7,27.5
1952,28.3,28.4,28.4,27.2,26.4,25.3,24.4,24.2,25,25.5,26.9,27.4
1953,28.5,28.2,27.7,27.1,26.2,25,24.3,24.1,24.5,25.6,26.5,27.4
1954,27.6,28.3,27.8,27,26.3,25,24.4,24.4,25.2,25,26.4,27.4
1955,28,27.6,27.6,26.5,25.5,24.4,24.1,23.6,24.6,25,26.4,27.5
1956,26.6,27.4,27.5,26.5,25.7,24.2,23.2,23.8,23.7,24.8,26.4,27
1957,27,26.9,27.3,26.9,25.6,24.7,24,24.3,24.6,25.9,26.3,27.2
1958,27.9,27.8,28,27.8,26.2,24.9,24,24.6,25.1,25.7,27,26.9
1959,27.9,28.1,27.8,27,26,25,23.8,23.7,24.5,25.5,26.9,27.5
1960,27,27.6,27.1,26.3,25.8,24.7,23.8,23.7,24.4,25.5,25.7,27.3
1961,28.3,28.4,27.8,27.3,26.7,25.3,24.4,24.3,24.8,25.7,26,27.4
1962,27.2,27.5,27.1,26.3,25.2,24.9,24.1,24.1,24,24.9,26.8,27.3
1963,27.3,27.4,27.4,26.1,25.3,24.4,24.3,23.8,24.2,25.5,26.2,26.7
1964,27.6,28.1,27.6,26.9,25.4,24.5,23.3,23.8,23.6,24.6,26.1,26.4
1965,26.7,27.2,27.7,26.3,25.5,23.9,23.8,23.9,24.7,25.7,26.5,27
1966,27.8,28.4,27.4,26.7,25.9,25.1,24.5,24,24.9,25.7,26.4,27.6
1967,28.1,27.8,28.1,26.7,26,24.9,24.5,24.2,24.6,25.1,26.3,25.9
1968,26.7,27.1,27,26.3,25.7,24.1,24,23.9,24.4,25.7,26,27.1
1969,27.2,27.5,27.3,27.4,26.1,24.9,24.7,24.1,24.7,25.5,26.7,27.4
1970,27.7,28.2,28,26.6,26.1,25.1,24.9,24.6,24.5,25.2,26.6,27.2
1971,27.5,27,26.6,26.3,25.3,24.1,23.8,22.7,24,24.6,26.4,27.1
1972,27.2,27.1,27.2,26.7,26.1,24.7,24.1,24.3,25,25.9,25.9,27.4
1973,27.9,28.2,28.6,27.1,26.2,24.9,24,23.4,24.4,25.7,26.6,26.7
1974,26.7,27.4,27,26.5,25.9,25,24.3,24.1,24.6,25.2,26.4,26.9
1975,27.5,27.7,27.7,26.1,26,24.8,24,23.5,24.1,24.5,25.9,27.5
1976,27.3,27.7,26.6,26.5,25.8,24.6,23.8,23.7,24.6,25.6,26.6,27.9
1977,27.8,28.1,26.3,26.9,25.6,23.5,24.2,24.3,24.7,25.5,26,26.8
1978,26.9,27.7,26.7,26.3,25.3,24.7,23.4,24.4,24.9,25.7,26,26.3
1979,27.4,27.4,27,26.5,25.6,24.4,23.7,24.4,24.6,25.1,26.7,27.8
1980,27.8,28.1,27.6,27.2,26.5,24.4,24,23.7,24.7,25.7,26.6,27.5
1981,28.2,28.2,27.3,26,24.9,24.2,23.3,23.8,24.2,25.2,26.5,27
1982,27.8,27.8,27.1,26.2,25.3,24.8,24,23.5,24,25,26.1,27
1983,28,28.3,27.7,27.4,26,26.1,24.6,24,24.5,25.7,26.3,27.1
1984,27.4,27.3,27.2,26.2,25.8,24.3,23.6,23.4,24.2,24.8,25.6,26.3
1985,27.5,27.4,26.8,26.5,25.7,24.5,23.9,24,24.4,25.1,26.3,27.1
1986,27.5,27.4,27.1,26.4,25.8,24.6,23.6,23.8,24.7,26.1,26.6,26.8
1987,28.3,27.9,28.2,27.7,26.5,24.9,23.7,24.7,25.1,26,26.9,27.7
1988,28.5,28.4,28.4,27.3,26.1,25.5,24.8,24.9,24.9,25.9,26.6,26.9
1989,26.6,27.3,27.1,26.2,25.2,24.3,24.1,23.6,24.4,25,25.9,26.6
1990,27.3,28.2,27.1,26.8,26.1,24.7,24.1,23.9,24.5,25.5,26.6,27
1991,28.1,28.1,27.8,27.5,26,25,24.4,23.7,24.4,26.2,26.6,27.1
1992,27.7,28.4,27.8,26.9,26.2,25.3,24.1,23.6,24.6,25.4,26.4,27.3
1993,27.3,27.2,27.3,26.6,26.5,24.9,23.7,23.7,24.3,25,26.5,27.3
1994,28.7,27.8,28.1,26.9,25.7,24.8,24.4,24.3,25,26.3,26.3,26.9
1995,28,27.8,27.5,26.9,25.8,24.7,24.8,24.2,24.8,25.6,25.9,27.4
1996,28.4,28.2,26.9,26.6,25.8,25.2,24.1,23.6,24.3,24.7,25.9,27.1
1997,28.4,27.7,27.4,26.8,25.7,25.2,24.5,24.4,24.9,25.6,26.8,27.2
1998,27.8,28.4,28.4,27.6,26.2,25.8,24.6,24.9,25.1,25.2,26.2,27.9
1999,28.6,28,27.1,26.6,25.8,24.8,24,23.8,24.7,25.1,26.4,27.4
2000,28.2,27.5,27.5,26.8,25.9,24.4,24.4,23.6,24.5,25.7,27.3,27
2001,27.4,27.8,28.1,26.6,26.4,25.1,24.5,24.1,24.6,25.9,27,27.6
2002,28.4,28,27.6,26.7,26.1,25.2,24.8,24.4,24.8,26.2,26.8,27.9
2003,28.4,28.2,28.4,27.7,27.1,26.1,24.1,24.6,24.7,26.7,26.9,27.1
2004,29.6,28.8,28.2,26.9,26.6,24.7,24.6,24.7,24.9,25,26.3,26.8
2005,27.8,28.5,28,26.8,26.2,25.5,24.2,23.8,24.9,25.4,26.6,27.7
2006,28.5,28.3,28.2,26.2,25.5,24.4,23.9,24.3,24.7,25.9,26.9,27.4
2007,28,28,27.4,26.6,26.1,24.8,24.3,24.3,25.2,25.7,26.6,27.3
2008,28,28.2,27.2,26.7,25.5,24.1,23.9,24.3,24.8,26.4,27,27.2
2009,28.2,28.2,27.6,27.4,26.1,25.8,24.4,24.5,25.3,26.1,27,28.6
