1901,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1902,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1903,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1904,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1905,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1906,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1907,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1908,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1909,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1910,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1911,27.7,27.8,27.6,26.7,25.7,24.6,23.8,24,24.6,25.7,26.6,27.2
1912,27.6,27.9,27.6,26.7,25.6,24.5,23.8,23.9,24.5,25.7,26.7,27.2
1913,27.5,27.8,27.6,26.7,25.7,24.5,24,24.1,24.7,25.8,26.7,27.4
1914,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.5
1915,27.7,28,27.7,26.9,25.8,24.5,23.9,24,24.7,25.8,26.7,27.3
1916,27.6,28.1,27.6,26.7,25.8,24.6,23.9,24.1,24.7,25.8,26.8,27.4
1917,27.7,28.1,27.7,26.7,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1918,27.6,28.1,27.7,26.7,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1919,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1920,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1921,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.8,25.9,26.9,27.6
1922,27.9,28.2,27.8,26.9,25.9,24.7,24,24.1,24.8,25.9,26.9,27.6
1923,27.7,28,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1924,27.8,28.2,27.8,26.9,25.9,24.7,24.2,24.3,24.9,26,26.9,27.6
1925,27.8,28,27.7,26.8,25.9,24.8,24.3,24.3,24.8,25.8,26.7,27.4
1926,27.7,28,27.6,26.6,25.9,24.8,24.2,24.3,24.8,25.8,26.7,27.3
1927,27.7,28,27.7,26.5,25.6,24.4,24,24.3,24.9,26,27,27.5
1928,27.7,28,27.9,27,26,24.6,24.1,24.2,24.9,26,27,27.5
1929,27.7,28.2,27.9,26.8,25.9,24.5,23.9,24,24.6,25.8,26.7,27.5
1930,27.8,28,27.7,26.8,25.6,24.4,23.8,23.9,24.6,25.7,26.7,27.4
1931,27.7,28,27.7,26.8,26,24.7,24.1,24.2,24.8,25.9,26.7,27.5
1932,27.7,28.2,27.7,26.8,25.8,24.6,24,24.1,24.7,25.8,26.7,27.4
1933,27.7,28,27.7,26.9,25.9,24.7,24,24.1,24.7,25.9,26.7,27.4
1934,27.1,27,27.1,26.9,26.6,24.7,24,24.4,24.5,25.9,27,27.5
1935,28.1,27.9,27.8,26.2,25.8,24,23.4,23.1,24.9,26.6,26.9,27.2
1936,27.5,28.1,27.6,26.7,26.4,24.4,23.6,23.5,24.1,26.5,27.6,27.3
1937,27.8,28.4,27.8,27.4,26.5,24.9,23.8,23.9,25.3,26.3,27.6,27.4
1938,27.7,27.9,27.6,26.9,25.7,24.9,24.2,24.2,24.9,26.3,27.1,27.3
1939,27.3,28.3,27.5,26.8,26.5,24.1,24.1,24.5,24.9,26.1,27,27.4
1940,27.9,28.4,27.8,26.1,26.3,25.1,23.9,24.2,25.1,25.5,27.4,28.1
1941,27.9,28.5,28.1,27.4,26.3,24.2,23.7,24.2,25.4,26.2,27.4,28.1
1942,28.5,29.2,28.7,27.6,26.4,25.1,23.8,24.4,24.7,25.8,27,28.1
1943,28,28.1,28.2,27.7,26.6,24.6,23.4,24,24.3,25.4,27.3,28.2
1944,27.2,28.4,28.2,27.5,26.5,25.1,24.2,24,25.2,26.3,28,28.3
1945,28.3,28.5,28.5,28,26.8,24,23.7,24.1,24.1,26.7,27.1,28.3
1946,28.1,28.4,28.2,27.5,26.8,25,23.7,23.8,24.2,25.9,27.4,28.6
1947,28.9,28.7,28.5,27.3,25.7,24.5,24.1,23.7,24.8,25.7,26.9,27.5
1948,27.7,27.8,27.9,27.2,26.8,25,24.1,24.4,24.8,26,26.7,27.3
1949,27.6,27.4,27.5,27.2,26.4,24.7,24.4,25,25.2,26.4,27.3,27.6
1950,27.1,27.4,27.6,27,25.3,24.1,24,24,24.5,25.3,26.3,27.3
1951,27.9,28.5,27.8,26.6,25.7,25,23.9,24.2,25.5,26.5,27.2,28.1
1952,28.6,28.8,28.7,27.4,26.3,25.1,24.3,24.3,25.3,25.9,27.3,27.9
1953,28.8,28.5,28,27.2,26.1,25,24.2,24.2,24.7,26.1,26.9,28
1954,27.9,28.7,28.2,27,26.1,24.8,24.3,24.5,25.5,25.5,26.8,27.9
1955,28.3,28.1,27.9,26.5,25.5,24.5,24.1,23.9,24.7,25.5,26.8,27.9
1956,26.8,27.9,27.9,26.6,25.8,24.3,23.2,24.1,24,25.4,26.9,27.5
1957,27.4,27.3,27.6,27,25.6,24.4,23.9,24.3,24.9,26.3,26.7,27.9
1958,28.2,28.1,28.3,27.8,26.2,24.9,23.9,24.7,25.3,26.1,27.3,27.5
1959,28.3,28.6,28.2,27.2,26.1,25.1,23.8,24,24.7,25.9,27.2,27.8
1960,27.4,28,27.5,26.4,25.7,24.8,23.7,23.9,24.6,25.9,26.3,27.9
1961,28.5,28.7,28.2,27.4,26.7,25.3,24.4,24.4,25,26.2,26.4,27.8
1962,27.5,27.8,27.6,26.6,25.2,24.8,24,24.2,24.2,25.3,27,27.7
1963,27.5,27.6,27.6,26.2,25.4,24.3,24.2,23.8,24.3,26,26.7,27.3
1964,27.9,28.5,27.9,27.1,25.4,24.5,23.1,23.9,23.7,25,26.5,26.8
1965,27,27.6,28,26.5,25.5,23.8,23.7,24,24.9,26.1,27,27.3
1966,28.1,28.7,27.6,26.8,25.9,25,24.4,24.2,25.1,26.1,26.8,27.9
1967,28.3,28.2,28.4,26.8,26,24.7,24.3,24.3,24.8,25.4,26.8,26.8
1968,27,27.4,27.1,26.4,25.7,24.1,23.8,23.9,24.5,26.1,26.3,27.7
1969,27.5,27.7,27.5,27.4,26,24.7,24.4,24.1,24.9,25.9,27,27.8
1970,27.8,28.4,28.1,26.7,25.9,24.8,24.5,24.5,24.6,25.6,26.9,27.5
1971,27.6,27.3,26.9,26.3,25.3,23.9,23.6,22.9,24.1,25,26.7,27.4
1972,27.2,27.1,27.4,26.7,26,24.5,24,24.4,25.1,26.2,26.2,27.6
1973,27.9,28.6,28.8,27.1,26.1,24.7,23.8,23.5,24.6,26,27.1,27.1
1974,26.9,27.5,27.3,26.5,25.7,24.8,24.1,24.1,24.5,25.5,26.8,27.1
1975,27.7,27.9,28,26.1,25.9,24.7,24,23.5,24.3,24.9,26.2,27.9
1976,27.5,28,27,26.6,25.8,24.4,23.7,23.8,24.8,26,27,28.3
1977,28,28.5,26.7,27,25.6,23.3,24,24.4,24.8,25.9,26.3,27.2
1978,27.1,28,26.8,26.6,25.4,24.6,23.3,24.5,25.1,26.1,26.4,26.9
1979,27.5,27.7,27,26.7,25.8,24.5,23.8,24.8,24.9,25.1,27.1,28.5
1980,28,28.3,27.8,27.2,26.4,24.1,23.8,23.9,25,26.1,26.8,27.6
1981,28.3,28.6,27.7,26.1,25.1,24.1,23.1,23.9,24.4,25.5,26.9,27.3
1982,28,28.3,27.5,26.5,25.5,24.9,24.2,23.9,24.6,25.6,26.5,27.4
1983,28.2,28.5,28.2,27.4,26.1,26,24.4,24.2,24.7,26.2,26.8,27
1984,27.3,27.6,27.5,25.8,25.9,24.4,23.6,23.5,24.5,25.2,26.1,26.9
1985,27.8,27.7,27.2,26.6,25.7,24.4,23.8,24,24.7,25.6,26.7,27.5
1986,27.8,27.8,27.4,26.6,25.9,24.4,23.5,24,24.9,26.5,26.9,27.4
1987,28.5,28.3,28.6,27.9,26.5,24.9,23.7,24.9,25.4,26.5,27.2,28.1
1988,28.7,28.8,28.7,27.4,26.1,25.6,24.7,25,25.2,26.2,27.1,27.3
1989,26.9,27.4,27.4,26.4,25.3,24.2,24,23.8,24.6,25.4,26.6,27.1
1990,27.5,28.5,27.5,27,26.2,24.6,24,24,24.6,25.9,27,27.6
1991,28.2,28.4,28.2,27.6,26,24.9,24.2,23.9,24.7,26.4,27,27.3
1992,28.1,28.7,28.1,27,26.1,25.2,24,23.7,24.9,25.9,26.8,27.8
1993,27.5,27.3,27.5,26.8,26.5,24.9,23.7,23.9,24.6,25.7,27.1,27.7
1994,28.5,28.1,28,26.8,25.7,24.7,24.3,24.4,25.3,26.7,26.8,27.4
1995,28.2,28.1,27.7,27,25.9,24.7,24.7,24.3,25.1,26.1,26.5,28
1996,28.7,28.7,27.4,26.7,25.9,25.1,24.1,23.9,24.7,25.2,26.4,27.6
1997,28.7,28.1,27.6,27.1,25.9,25.2,24.5,24.5,25.3,26.1,27.4,28
1998,28,28.9,28.7,27.6,26,25.7,24.6,25,25.3,25.7,26.9,28.3
1999,28.9,28.3,27.5,26.9,25.9,25,24,24.2,25.1,25.6,26.9,27.8
2000,28.3,27.8,28,27.2,26.3,24.4,24.3,24.1,24.8,26.2,27.7,27.4
2001,27.6,28.1,28.5,26.7,26.3,25.1,24.3,24.5,24.9,26.4,27.4,28
2002,28.6,28.3,28.1,26.9,26.2,25.2,24.9,24.6,25.2,26.8,27.2,28.5
2003,28.6,28.6,28.8,27.7,27.1,26.1,24.1,24.7,24.9,27.2,27.3,27.6
2004,29.7,29.4,28.6,27,26.7,24.6,24.6,24.9,25.1,25.4,26.7,27.2
2005,28.1,29,28.3,26.9,26.3,25.4,24.1,24,25.1,25.8,27.1,28.2
2006,28.8,28.6,28.5,26.4,25.8,24.2,24.1,24.5,25,26.4,27.5,27.8
2007,28.3,28.6,27.9,26.9,26.2,24.6,24.1,24.4,25.7,26.1,27,27.7
2008,28.4,28.8,27.5,27,25.7,24.1,23.9,24.5,25,26.7,27.4,27.6
2009,28.4,28.8,28,27.6,26.1,25.7,24.4,24.7,25.6,26.7,27.4,29.2
