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