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