1901,27.6,27,26.8,26.7,24.6,22.2,21.1,21.2,23.7,25.1,24.4,25.7
1902,27.8,27.8,26.2,24.2,22.2,21.6,20.7,20.2,21.4,23.5,24.5,27.4
1903,27.6,28.4,26.8,25.3,23.8,22.5,22,21.5,22.5,24.6,25.1,26.5
1904,26.8,27,26.4,25.3,22.3,21.2,21,21.1,21.3,22.4,24.3,25.3
1905,26.2,27.3,25.4,23.9,23.1,22.1,20.4,21.2,22.1,23,24.5,27.9
1906,27.7,26.4,26.1,25.2,23.1,21.4,20.9,21.3,22.9,23.9,26,27
1907,28.4,27.3,28.4,25.6,23.4,23,21.4,20.8,21.7,24.4,25.8,27.4
1908,27,27.3,26.7,25.2,24.1,22.2,20.9,21.7,23,22.6,25.2,25.8
1909,27.9,28.2,25.9,25.6,23.3,22.9,23,22,23.4,24.1,26.2,27.1
1910,28.4,29.2,28.7,26.4,24.4,23.4,22.8,22,23.2,25.4,26.5,27.5
1911,27,27.2,26.5,25.1,23.3,22.1,21.1,21.2,22,23.6,25,26.2
1912,27,27.3,26.6,25.1,23.3,22.3,21.1,21.2,22,23.6,24.9,26.1
1913,27,27.2,26.5,25.1,23.3,22.1,21.1,21.1,22,23.6,25,26.2
1914,27.1,27.3,26.6,25.2,23.4,22.2,21,21.2,22,23.5,25,26.2
1915,27.8,28.2,26.8,25.4,23.6,22.5,21.7,21.7,22.1,24.2,25.7,26.8
1916,27.2,27.9,27.1,25.7,23.6,22.8,21.5,21.5,22.5,24.3,25.5,26.7
1917,27.3,27.4,26.2,25.4,23.5,22.2,21.3,21.4,22.6,24.2,25.3,26.2
1918,27.3,27.3,26.4,25.3,23.2,22.2,20.8,21,22,24,25.3,26
1919,27,27.5,26.5,25,23.4,22,21.1,21.1,22.1,23.9,24.7,26
1920,27.1,27.2,26.5,25.1,23.4,22.5,21.4,20.9,21.9,24.1,25.6,26
1921,27.1,27.2,26.5,25.1,23.5,22.4,21.5,21,22.6,23.4,24.7,26.7
1922,27.2,27,26.8,25.3,23.8,22.8,21.7,21.5,21.8,24.4,25.4,26.5
1923,27,27.3,26.2,25.1,23.8,22.6,20.5,20.9,22.1,23.6,25,26.3
1924,27.3,27.5,26.5,24.8,23.1,21.9,20.8,20.9,22.1,23.7,24.9,25.9
1925,27,27.3,26.6,24.6,23.4,22.2,20.9,20.9,21.5,23,24.6,25.7
1926,27.3,26.8,26.2,25,23.2,22.1,21,21.1,21.8,23.7,25.3,26.4
1927,27.8,27.5,26.8,25.6,23.9,22.1,21.4,21.8,22.4,23.5,25.3,26.5
1928,27.3,27.3,26.6,24.6,23.2,22.1,20.9,21.1,22.2,23.7,25.4,26.4
1929,28.1,27.9,27.3,25.3,23.4,22.7,21,21.5,22,24.1,25.4,26.6
1930,27.5,26.7,25.8,24.8,22.7,22,20.8,21.2,21.9,24.2,25,27
1931,27.1,27.4,26.8,26.1,23.9,22.1,21.8,21.3,22.4,23.1,25.6,26.7
1932,26.9,27,26.7,25.1,23.2,21.4,21.3,21.4,21.9,24.1,25.3,26.7
1933,28,27.9,27.2,25.6,24.1,22.6,21.8,21.5,22.3,23.8,25.4,26.3
1934,26.3,27.5,26.4,25.6,22.8,22,20.8,21.4,22,23.4,25.3,26.7
1935,28,28.1,26.5,24.6,23,22.2,21.6,21.2,21.8,23.7,24.1,26.6
1936,28.2,27.8,26.2,24.5,22.9,22.2,21.3,21.1,21.5,24,24.4,26.8
1937,26.4,26.7,25.8,24.9,23.8,21.6,20.7,21.2,22.2,24.2,25.5,27
1938,27.7,28.3,26.7,24.9,23.5,22.7,21.9,21.5,22.4,24,26.2,26.7
1939,27.8,27.6,26.4,25.3,23.3,22.7,21,21.6,22.1,23.4,24.6,26.1
1940,26.5,26.7,25.4,24.4,23.4,21,19.7,20.6,21.5,23.7,25.4,25.2
1941,27.7,27.9,28.5,24.7,23.4,22,21.9,21.3,23.7,24.6,25.9,27.6
1942,28.1,29.1,28.7,25.8,24.2,23,23.1,22.4,23.6,25,26.3,27
1943,28,28.4,27.1,25.2,24.2,22.8,21.2,21.6,22.5,24,26.2,26.5
1944,28.6,28.1,27.2,24.8,23.1,21.3,20.9,21.2,22.3,23.5,25.7,26.4
1945,28.4,28.2,27.1,26,22.4,21.1,20,21.2,21.8,22.7,25.1,25.9
1946,29.3,28.7,26.7,25.8,23.8,21.6,21.4,21.7,22.7,24.4,26.3,28.1
1947,28.2,27.9,26.3,26,23.9,22.2,21.2,22.5,23.3,24.3,25.9,27.7
1948,28,27.7,28.3,25.9,24.6,22.8,22.4,21.7,22.7,24.6,25.8,25.9
1949,26.9,28.6,27.4,24.7,23.7,23.5,22.7,21.6,22.3,24.9,25.4,26.8
1950,28.5,28.7,26.1,25.2,25,24.1,22.1,22.4,21.8,24.4,25.4,25.9
1951,27.2,26.9,24.9,24.5,22.4,21.5,20.7,21.2,21.7,23.1,25.9,26.4
1952,27.2,27.3,26.4,25.3,24.1,22.3,20.6,21.3,22.1,24.6,27.1,26.8
1953,26.9,27.5,25.3,24.6,23.8,21.8,20.3,22.4,21.9,24.5,27,27.4
1954,28.1,27.8,27.1,24.6,22.6,21.9,21.3,21,21.8,22.9,25.2,25
1955,26.4,28.4,26,25.8,24,21.6,20.5,21.7,22,24.6,25.2,26.8
1956,27.2,28.2,26.1,25.3,23.8,22.9,21.1,20.7,21.1,24.1,24.9,28.2
1957,26.6,27.8,26.5,26.1,23.2,20.9,21.1,21.9,21.6,23.8,26.1,25.6
1958,27,28.4,26.9,24.2,23.5,23.6,21,21.8,22,23.3,24.3,27.5
1959,27.8,26.4,26.1,23.6,21.9,21.1,20.7,20.5,21.8,23.2,25.9,27.8
1960,26.7,28.2,26,24.1,24,21.4,20.6,20.6,22.2,23.9,25.2,25.6
1961,25.6,26.9,26.5,24.8,22.2,22.2,21.1,20.6,21.7,23.5,25.4,27
1962,28.3,27.8,27,24.7,24.4,21.9,21,21.1,22.7,24.5,24.5,26.4
1963,27.1,28.7,27.2,24.8,23.3,22.6,20.7,21.2,21.3,22.4,24.6,25.9
1964,28,28.4,27.1,25,23.5,22.7,21.9,21.6,22.3,24.3,24.6,26.1
1965,27.2,27.3,25.4,24.6,22.9,21.8,20.4,20.4,21.6,23,24.9,25.6
1966,26.2,28.3,26.4,25.1,22.6,21.9,20.9,21.1,22.2,22.6,24.1,25.3
1967,27,27.3,27.3,24.3,23.1,23.1,21.6,22.1,21.7,23.9,24.9,26.9
1968,26,26.1,26.4,24.9,23.8,21.4,20.3,20.6,21,22.8,25,25.8
1969,25.9,25.6,25,24.7,23.4,22,20.4,21.2,22.4,22.9,25.7,27.3
1970,28.8,27.2,28.4,25,23.4,22.3,21,22.4,23.3,24.3,25,26.3
1971,26.7,28.2,25.6,24,23.3,21.8,20.3,22,22.7,24.8,24.9,25.9
1972,26.5,26.2,27.1,24.6,22.8,21.1,20.8,20.9,20.6,23,25.9,25.5
1973,28.6,27.7,26.8,24.8,23.9,23.4,21.7,22,22.7,24.7,26.8,26.6
1974,26.9,27.5,26.9,25.9,23.3,21.8,21.4,21,22.1,22.7,24.7,25.7
1975,27.3,26,27,24.6,22.9,21.8,21,21.5,22.3,23.5,25.3,26.3
1976,26.9,26.9,27.7,25,23.1,21.8,20.5,20.5,20.5,23,25.2,26.8
1977,26.2,26.4,25.9,24.4,23.6,22.1,20.7,20.4,21,22.7,25,25.4
1978,26.3,27.7,26.5,25.7,23.5,22.9,21.4,20.9,22.1,21.6,24.4,25.7
1979,25.8,26.4,27,24.4,22.9,21.9,20.7,20.4,21.6,23.4,25.2,26.6
1980,28.2,29,26,23.9,23.6,22,21,21,21.7,23.4,24.8,25.3
1981,26.3,28,27.4,25.9,23.8,23,21,21.5,21.8,23.2,24.7,27
1982,28.1,27.5,26.4,24.5,23.6,21.2,20.6,19.8,21.8,22.9,24.1,26.9
1983,28.5,27,26.9,27,24.5,22.4,21.5,21.1,23.1,23.9,24.8,24.7
1984,26.8,26,26.6,25.3,23.5,21.9,21.5,21.9,22.5,22.9,25,27.4
1985,28,28.5,25.8,26.5,22.9,21.7,20.6,21.1,21.7,23.1,24.8,26.4
1986,29.5,28.3,25.6,25,23.5,22.1,20.6,20.9,21.6,24.9,25.2,24.8
1987,26.6,26.2,26.3,24.8,24.1,22.1,21,22,22,24.6,24.9,26.2
1988,26.5,27.1,25.6,25.5,24.3,22.9,22,22.2,23.7,25.3,26.9,26.3
1989,27.3,26.7,26.1,25,23.3,22.9,21.6,21.3,22.5,24.5,26.1,27.2
1990,27.8,27.4,27.6,26.5,25,22.9,22.1,22.2,21.7,24.4,24.7,27
1991,28.1,28.2,25.4,24.5,22.7,21.9,21.9,22,22.8,23.9,24.6,26.9
1992,28.2,28.3,26.7,24.5,23.7,22,21.1,21.8,22.9,22.7,25.8,26.2
1993,27,27.1,26.8,24.1,23.4,21.9,21.9,21.2,22.2,24.3,25.8,26
1994,27.1,27,26,24.2,23.5,21.9,20.4,20.2,21.7,23.9,25.1,25.3
1995,28.3,28.4,27.9,26.1,23.8,22.4,22.1,21.3,22.9,24.7,26.6,28
1996,28.9,28.6,27,26.9,23.8,22.6,21.5,21.8,23.4,24.4,25.5,27.6
1997,25.6,27.2,27.1,25.3,23.7,22,20.5,20.9,22.7,23,26.4,28.8
1998,27.7,28.8,27.5,27.2,25.1,24,23.2,22.8,23.4,25.2,25.8,26.2
1999,27.6,28.1,28.2,26.2,24.6,22.4,22.1,21.1,21.8,24.4,25,25
2000,27,26.6,25.9,24.9,24.1,21.6,21.6,21.3,23,24,24.5,26.9
2001,27.6,27.1,28.1,24.6,24.2,21.5,21,21.8,23,24.8,26.8,28
2002,28.8,28.7,26.9,25.2,23.6,23.1,20.9,21.8,22.9,24.2,24,26.6
2003,27,28,27,25.1,24,23,21.2,21,22.8,24.3,24.4,26.8
2004,28.1,29.2,26.3,24.7,24.1,22.2,21,21.3,22.1,24.6,25.3,26.3
2005,28.1,28.6,26.3,24.7,23.5,22.4,21.3,20.7,22.6,24.1,25.3,27.7
2006,27.8,27.1,26.7,26.5,23.4,21.7,20.8,21.2,22.2,23,25.8,26
2007,26.8,28,26.8,25.1,24.3,24.2,21.4,22.3,22.9,24.3,25.5,27
2008,28.2,28,26.7,25.5,22.7,22.4,22.7,21.6,22.8,23.4,26.6,27.5
2009,28.1,28.6,27.4,26,23,21.9,21.4,21.7,22.8,23.7,24.8,26.6
