1901,27.7,27.1,26.9,26.8,24.9,22.8,21.9,22,24.4,25.5,25,26.1
1902,27.9,27.7,26.4,24.7,22.9,22.3,21.6,21.2,22.5,24.1,25.1,27.6
1903,27.8,28.2,26.9,25.6,24.2,23,22.6,22.2,23.4,24.9,25.5,26.8
1904,27.1,27.1,26.5,25.5,23,21.9,21.8,21.9,22.5,23.3,25,25.8
1905,26.6,27.3,25.8,24.5,23.6,22.7,21.3,22,23.1,23.7,25.1,27.9
1906,27.8,26.6,26.3,25.5,23.6,22.2,21.7,22.1,23.7,24.4,26.3,27.1
1907,28.3,27.3,28.2,25.8,23.9,23.4,22.1,21.7,22.8,24.9,26.1,27.4
1908,27.1,27.3,26.8,25.5,24.4,22.7,21.7,22.3,23.7,23.4,25.6,26.1
1909,27.8,27.9,26.1,25.8,23.8,23.4,23.3,22.6,24.1,24.6,26.4,27.2
1910,28.3,28.7,28.4,26.5,24.7,23.7,23.2,22.6,24,25.7,26.6,27.5
1911,27.1,27.1,26.6,25.3,23.7,22.6,21.8,22,23,24.1,25.5,26.6
1912,27.2,27.2,26.6,25.4,23.8,22.9,21.8,22,23,24.2,25.4,26.4
1913,27,27.1,26.6,25.3,23.6,22.6,21.9,21.9,22.9,24.2,25.6,26.4
1914,27.2,27.2,26.6,25.6,23.9,22.8,21.6,21.9,22.9,24,25.4,26.4
1915,27.5,27.9,26.6,25.4,23.9,22.8,22.1,22.2,23.3,24.5,25.8,26.7
1916,27.3,27.5,26.8,25.6,23.8,22.9,22,22,23.2,24.4,25.7,26.7
1917,27.5,27.2,26.6,25.4,23.8,22.7,22,22,23.3,24.5,25.6,26.5
1918,27.3,27.2,26.6,25.3,23.7,22.8,21.7,21.9,23,24.3,25.6,26.4
1919,27.3,27.3,26.6,25.2,23.9,22.7,21.8,21.9,23,24.3,25.4,26.5
1920,27.1,27.1,26.4,25.2,23.9,23,22.2,21.7,22.9,24.4,25.8,26.3
1921,27.1,27.2,26.6,25.4,23.9,22.9,22.2,21.6,23.4,24,25.5,26.8
1922,27.3,27.3,26.7,25.7,24.2,23.3,22.3,22.1,22.8,24.7,25.9,26.7
1923,27.2,27.2,26.4,25.2,24.3,23.1,21.2,21.5,22.9,24.1,25.4,26.4
1924,27.4,27.5,26.5,25.1,23.6,22.5,21.8,21.7,23,24.2,25.3,26
1925,27.1,27.3,26.8,24.9,23.8,22.8,21.5,21.7,22.4,23.6,25.1,26
1926,27.3,27,26.3,25.4,23.6,22.7,21.7,22,22.6,24.2,25.7,26.4
1927,27.6,27.4,26.7,25.5,24.1,22.6,22.1,22.2,22.9,24.1,25.9,26.6
1928,27.3,27.2,26.7,25.1,23.5,22.6,21.7,22,23.1,24.2,25.8,26.6
1929,27.9,27.5,26.8,25.4,23.8,23,21.8,22.1,22.9,24.3,25.7,26.6
1930,27.3,26.8,26.1,25,23.4,22.5,21.8,21.9,23,24.6,25.5,27
1931,27.3,27.3,26.8,26,24.2,22.8,22.4,22.1,23.5,23.8,25.8,26.5
1932,27.2,27,26.7,25.3,23.8,21.7,22.2,22.2,22.6,24.4,25.8,27.1
1933,28,27.7,26.9,25.8,24.4,22.9,22.4,22,23.2,24.3,25.8,26.3
1934,26.8,27.5,26.4,25.7,23.4,22.6,22,22.1,23.1,24,25.7,26.7
1935,27.8,28,26.4,24.7,23.2,22.6,22.6,22.2,22.8,24.5,25.3,26.7
1936,28.1,27.7,26.7,24.9,23.5,22.5,22.3,21.9,22.4,24.4,25,27.2
1937,26.8,26.9,26,25.3,24.1,22.2,21.9,22.4,23.4,24.8,25.9,27.1
1938,28,27.9,26.7,25,23.8,23.3,22.8,22.3,23.4,24.6,26.2,27.1
1939,27.7,27.7,26.4,25.6,23.8,23.1,22.3,22.5,22.9,23.9,25.3,26.5
1940,27,27,25.7,25.1,23.9,22.1,20.9,21.6,22.5,24.1,25.9,25.6
1941,27.7,27.9,27.9,25.2,23.9,22.3,22.4,22,24,24.7,26.3,27.5
1942,28.3,29,28.4,25.9,24.5,23.4,23.3,22.8,24,25.3,26.5,27
1943,27.9,28.1,26.9,25.3,24.6,22.9,22,22.3,23.3,24.8,26.5,26.4
1944,28.2,27.7,27.2,25,23.7,22.1,21.6,21.8,23.4,24,25.9,26.7
1945,28.1,28,27.2,26,23.1,22,21.3,22.2,22.6,23.6,25.6,26.3
1946,28.9,28.5,26.9,25.9,24.1,22.2,22.1,22.5,23.5,24.9,26.8,28.2
1947,28.2,27.7,26.6,26.1,24.3,23,22.3,23.1,24.1,24.7,26.3,27.5
1948,27.9,27.5,27.7,25.9,24.7,23.1,22.5,22.3,23.3,24.9,26,26.1
1949,27.1,28.1,27.2,25.4,23.9,23.7,23.2,22.3,23.2,25.2,25.8,26.9
1950,28.4,28.3,26.2,25.5,24.6,24.3,22.9,23.1,22.9,24.9,26,26.4
1951,27.7,27.9,25.8,25.3,22.4,22,21.2,21.6,22.4,23.9,26.4,27.1
1952,28.3,27.2,26.9,26.7,25.1,22.4,22.3,22.2,23.2,25.4,27.1,27.2
1953,27.3,27.6,25.8,24.9,23.9,22,20.6,22.9,24,25.5,27.4,27.3
1954,27.7,27.6,27.1,25.1,22.9,22.9,22.5,21.9,23.1,23.9,25.6,25.3
1955,27.2,28,27,25.8,24.5,22.3,21.7,22.5,23.1,25.5,26.3,26.9
1956,27.1,28.3,26.9,25.2,23.5,23.2,21.9,21.7,22.3,24.8,25.3,27.7
1957,26.9,27.5,26.3,26.1,23.2,21.6,22,22.7,22.2,24.2,26.1,26.4
1958,26.7,28,27.3,25.3,24.1,23.8,21.7,23,23.1,23.9,25,27.3
1959,27.4,27.1,26.6,24.3,22.6,22.1,21.7,21.6,23.6,24.3,26.7,27.5
1960,27.2,27.6,26.2,24.8,24.5,22,21.9,21.7,23.3,24.5,25.8,26.4
1961,26.3,27.2,26.7,25,22.8,23,21.6,21.1,22.5,24.1,26.1,26.6
1962,27.9,27.8,26.7,25,25.1,23.4,22.4,21.6,23.3,25.1,24.7,26.2
1963,27.1,28.2,27.5,25,24.1,23,21.4,22.1,22.2,23.1,25,26.1
1964,28.2,28.3,27.1,25.4,24,23.4,23.1,22.4,23.2,24.7,25,25.8
1965,26.9,26.9,25.5,24.9,23.4,22.5,21,21.1,22.6,23.1,24.9,25.7
1966,26.1,27.7,26,25.1,22.9,22.3,21.8,21.7,22.8,23.4,24.8,25.5
1967,26.9,26.8,27.4,24.9,23.5,23.7,22.1,23.1,22.5,24.4,25.3,26.5
1968,26.8,27,26.8,24.9,24,22,21.5,21.8,22.2,23.5,26,26.2
1969,26.6,26.1,25.7,25.7,24.4,22.5,22,22.2,23.1,23.8,25.6,27.3
1970,28.2,26.9,27.6,25.1,23.4,22.7,21.8,23,24,24.6,25.1,27.1
1971,27,27.7,25.9,24.1,23.3,22.1,21.3,22.8,23.9,25.5,25.8,26.8
1972,26.7,27.2,27.1,25.2,23.9,21.8,21.8,21.9,22.4,24.3,26.2,26.2
1973,28.3,28.2,27.6,25.5,24.3,23.9,22.7,22.8,23.6,25.1,26.8,27.1
1974,26.8,26.6,26.7,25.7,23.9,22.1,22,21.7,23.1,23.3,25.5,26.4
1975,27.6,26.7,26.8,25.2,23.2,22,22.2,22.3,23.7,24.3,25.6,26.4
1976,26.8,26.8,27,25.2,23.9,23.2,21.9,21.4,21.5,23.7,26,26.7
1977,26.8,27.2,27.2,25.2,24.2,22.7,21.9,21.4,22.3,23.4,25.4,26.1
1978,27.3,27.5,27.1,25.7,23.5,23.1,21.7,21.7,23,22.9,25.3,26.3
1979,26.9,26.6,27.1,25.1,23.3,22.5,21.9,21.4,22.7,24.3,25.8,27
1980,28.9,28.8,26.7,24.5,24.1,22.8,21.8,22,22.7,23.9,25.6,26.4
1981,26.7,28.1,27.2,25.9,23.9,23.4,21.9,22.2,23.2,24.3,25.1,26.5
1982,27.9,26.7,26.6,25,23.8,21.4,20.9,21,22.6,23.4,25,26.7
1983,28,26.9,26.8,26.5,25.3,23,22.2,22.2,24.3,24.4,26,25.3
1984,27,26.4,27.2,25.7,23.4,22.5,22.4,22.6,23.2,23.9,25.1,27.4
1985,28,28.4,26.8,26.8,23.4,22.3,21.4,22,22.6,24,25.6,26.7
1986,28.7,28,25.8,25.6,24.1,22.7,21.7,21.7,22.9,25.2,25.6,25.1
1987,27.3,26.7,26.2,25.5,24.7,23.4,22,22.9,23.1,25.2,25.1,26.7
1988,27,27.2,25.9,25.7,24.2,23.7,22.7,23,24.8,25.8,27.2,26.6
1989,27,26.8,26.6,25.5,23.8,23.6,22.5,21.8,23.2,25.1,26.5,27
1990,27.5,27.6,27.4,26.9,25.3,23.7,22.7,22.6,22.7,24.2,25.2,26.8
1991,28.1,27.9,25.6,24.9,22.9,22.7,22.3,22.7,23.7,24.1,25.2,26.7
1992,27.7,28,26.5,25,24.1,22.4,21.9,22.5,24,23.1,26.1,26.5
1993,27.4,27.2,26.8,24.9,24.3,23,23.4,22.3,23.3,24.9,26.2,26.4
1994,27.8,27.5,26.5,25.2,24,22.8,21.5,21.5,23,24.3,25.7,26
1995,27.7,27.9,27.2,25.9,24.4,22.8,22.9,22.4,23.6,25.3,27.2,28.1
1996,27.8,28.7,26.8,26.7,24.1,23.1,22.2,21.9,23.8,25.1,26.1,27.8
1997,26.4,27.5,27.2,25.8,24.4,22.6,21.5,21.7,23.5,24,26.6,28.1
1998,28.1,28.4,27.7,27,25.1,24.2,23.4,23.6,24.7,25.7,26.3,26.7
1999,27.6,27.5,27.5,26.1,24.7,22.8,23,21.5,23.6,25.3,25.7,25.5
2000,27.3,27.5,26.8,26,25,22.3,22.3,22.2,24.4,25.2,25.4,27
2001,28,27.3,27.9,25,24.4,22.9,22.1,22.4,23.9,25.4,26.8,28.1
2002,28.6,28.4,26.7,25.3,24.1,23.9,21.7,22.7,24.1,25.4,25.4,27.3
2003,27.6,28.3,27.4,25.3,24.6,23.7,22.3,21.8,23.8,24.9,25.5,27
2004,28.9,29.3,27.1,25.9,24.4,23.1,22.2,22.2,23.6,25,26.3,27.2
2005,28.3,29.1,26.4,25,23.5,23.1,22.3,21.5,23.5,25.1,26.2,28.1
2006,28.2,27.2,26.9,26.6,23.9,22.6,22.1,22.1,23.5,24,25.9,26.8
2007,27.3,28.3,27.2,25.5,24.6,25.1,21.9,23.4,23.5,25.2,26.3,27.5
2008,28.4,28.1,26.8,25.3,22.6,22.9,23.7,22.5,23.8,24.2,27,27.7
2009,28,28.2,27,26,23.3,23,22.3,22.4,24.2,24.9,26,27.4
