1901,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1902,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1903,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1904,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1905,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1906,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1907,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1908,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1909,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1910,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1911,28.2,28.5,28.4,26.4,24.8,24.1,23.2,23.8,25.2,26.7,27.4,27.3
1912,28,28.6,28.4,26.3,24.8,23.9,23.2,23.7,25,26.7,27.6,27.2
1913,28,28.4,28.3,26.3,24.9,23.9,23.6,24,25.4,26.9,27.6,27.6
1914,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.7
1915,28.2,28.7,28.5,26.6,25,24,23.5,23.9,25.3,26.9,27.7,27.5
1916,28.1,28.8,28.3,26.3,25,24,23.5,24,25.4,26.9,27.7,27.6
1917,28.2,28.8,28.5,26.4,25,24,23.5,23.9,25.3,26.9,27.7,27.7
1918,28.1,28.9,28.5,26.4,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1919,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1920,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1921,28.2,28.7,28.5,26.5,25,24.1,23.6,24,25.5,27,27.9,27.9
1922,28.5,29,28.7,26.6,25.2,24.3,23.5,24,25.5,27.1,28,27.9
1923,28.2,29.1,28.5,26.8,25,24.4,23.6,24.4,25.8,27.3,28,27.9
1924,28.3,29.2,28.8,26.7,25.2,24.1,24.2,24.1,25.8,27.3,27.9,27.8
1925,28.3,28.6,28.5,26.5,25.2,24.5,24,24.4,25.6,26.8,27.6,27.5
1926,28.5,28.8,28.4,26.2,25.2,24.3,23.9,24.5,25.5,27,27.9,27.6
1927,28.4,29.1,28.7,26.4,25,24.1,24.1,24.5,26.1,27.2,28.5,28.1
1928,28.5,28.9,28.9,27,25.3,24.2,23.9,24,25.7,27.3,28.3,27.8
1929,28.5,29.3,29.1,26.8,25.4,24.2,23.4,24.1,25.5,26.9,27.6,28.1
1930,28.3,28.8,28.3,26.4,24.7,23.9,23.3,23.9,25.4,27,28.1,27.6
1931,28.2,28.8,28.5,26.5,25.3,24.3,23.8,24.1,25.6,27.1,27.6,27.7
1932,28.2,29,28.5,26.5,25,24.1,23.6,24,25.4,26.9,27.6,27.6
1933,27.8,28.5,28.3,26.7,24.8,23.8,23.4,23.9,25.4,26.9,27.9,27.6
1934,27.3,27.4,27.6,26.6,25.5,24.1,23.4,24,25.2,26.6,27.6,27.5
1935,28.7,28.2,28.7,25.8,24.5,23.5,22.8,23.1,25.5,27.6,28,27.3
1936,27.5,28.3,28.1,26,25.4,23.8,22.7,23.3,24.7,27.5,28.8,27.4
1937,28,28.8,28.6,26.6,25.7,24.6,23.2,23.6,25.9,27.1,28.3,27.6
1938,28.4,28.5,28,26.6,24.8,24.6,23.5,24.2,25.7,27.2,27.9,27.5
1939,27.8,28.6,28.1,26.4,25.4,23.5,23.8,24.5,25.8,27.3,28,27.8
1940,28.3,29.2,28.2,25.6,25.4,24.5,23.4,24.1,26.1,26.9,28.7,28.6
1941,27.8,29.3,28.8,27.2,25.5,23.8,23.6,24.1,26.3,27.6,27.6,27.7
1942,28.9,29.8,29.1,27.1,25.3,24.4,23.3,24,25.7,26.9,27.8,28.3
1943,28.7,28.6,29,27.6,25.6,24.2,23.4,24.2,25.2,26.9,28.3,28.1
1944,27.6,29,28.9,27,25.5,24.3,23.5,23.8,25.7,27.1,28.7,28.5
1945,28.7,28.9,29.4,27.8,25.9,23.6,23.1,23.8,24.9,27.8,28,28.6
1946,28.6,29.1,29.1,27.2,25.8,24.6,23.2,23.6,24.9,27,28.4,28.9
1947,29.2,29.2,29.1,26.9,24.5,24,23.6,23.5,25.6,26.7,27.8,27.6
1948,27.9,28.3,28.6,26.8,25.8,24.1,23.3,24.1,25.2,27,27.6,27.4
1949,28.1,28,28.3,26.9,25.6,23.7,23.6,24.8,25.8,27.5,28.5,27.8
1950,27.3,27.8,28.1,26.7,24.2,23.2,23.3,23.6,25.2,26.1,27.2,27.4
1951,28.8,29.4,28.7,26.2,25,24.5,23.7,23.9,26.3,27.5,28.2,28.2
1952,29.1,29.6,29.6,27.2,25.7,24.5,23.9,24.2,26.1,27.1,28.1,28.2
1953,29.3,29.1,28.9,27,25.4,24.8,23.8,24.3,25.6,27.2,27.9,28.2
1954,28.7,29.5,29.3,26.8,25.4,24.2,23.9,24.3,26,26.7,27.6,28
1955,28.9,28.8,28.7,26.3,24.8,24.1,23.9,24.1,25.5,26.8,27.6,28.1
1956,27.4,28.5,28.8,26.4,25.1,24.1,22.9,24.2,24.9,26.7,27.6,27.7
1957,27.6,27.5,28.2,26.2,24.2,24.1,23.3,24,25.7,27.2,27.7,27.9
1958,28.6,27.9,28.6,27.5,25.5,24.3,23.5,24.3,26,27.4,28.1,27.3
1959,28.7,28.8,28.4,27,26,24.5,23.1,23.7,25.3,26.6,28,27.5
1960,28,29,27.7,26,25,24.4,23.3,24.3,25.1,26.8,27.8,28.3
1961,30.7,30.3,30.4,27.4,26.4,25.2,23.9,24.2,24.9,26.2,26.1,27.6
1962,27,28.5,28.5,26.8,24.6,24.8,23.8,24.2,24.9,26.7,28.2,27.6
1963,27.5,28,27.7,26.2,24.4,23.5,23.6,23.5,24.8,26.9,26.9,26.7
1964,27.9,29.2,28,26.3,24.7,24.1,22.9,23.7,24.7,26.1,27.8,27.2
1965,27.1,28.8,29.4,26.5,25.1,23.8,23.4,23.8,25.7,26.4,27.4,27.6
1966,28.3,28.9,27.9,26.1,25,24.1,23.9,24.3,25.7,26.9,27.7,28.6
1967,29.9,29.1,29.9,26.5,24.9,23.7,23.3,23.6,25,26.1,27.2,27.1
1968,27.6,28,26.8,25.6,24.4,23.4,22.7,23.4,25.3,26.9,26.3,27.7
1969,28,27.3,27.6,27.4,25.2,24.2,24.2,23.6,25.7,27.2,27.9,28.2
1970,27.9,28.7,28.5,25.8,24.8,24.4,23.9,24.3,25.2,27.3,28.4,27.6
1971,28,28.2,28.2,25.9,24.3,23.1,22.6,23,24.7,26.5,28.8,27.7
1972,27.6,27.3,28.5,26.9,24.7,23.7,23.2,24.4,25.7,25.9,28,28.7
1973,28.1,29,29.9,27.2,25.2,24.2,23.9,23.6,26.1,28.2,28.2,27.5
1974,29,29.5,28.7,26.8,25.4,24.2,23.8,24.5,25.2,27.9,27.9,28.2
1975,28.7,29.6,29.5,26.5,25.5,24.5,24.4,24.1,25.3,26.7,28.4,29.4
1976,28.8,29.4,28.9,27,25.2,24.6,24.2,24.9,25.7,27.4,29.1,29.7
1977,28.9,29.5,27.8,26.5,25.5,23.7,23.8,24.6,25.7,27.3,26.4,27.1
1978,27,28.1,26.9,25.5,24.4,23.7,23,24.5,26.6,27,27.1,26.4
1979,26.8,27.2,26.9,26.1,24.5,23.6,23.2,24.6,25.3,26,28,28.3
1980,28.5,28.4,29.3,27.5,25.5,24.2,23.2,23.5,25.9,27.7,27.6,27.6
1981,29.2,29.5,28.6,26.1,24.3,24.2,22.5,24.2,25.7,26.9,28.1,27
1982,28.9,29.6,29.2,26.4,24.4,24.2,23.7,23.9,24.9,26,27.4,27.8
1983,29.1,29.3,29.3,27.4,25.1,25,24,24.4,25.3,27.8,28.8,27
1984,27.3,28.7,28.6,25.3,25.1,23.5,22.3,23.1,25.6,25.8,26.3,26.9
1985,28.3,27.6,27.5,25.9,24.8,23.7,23.2,23.5,25.5,26.6,27.1,27.5
1986,27.9,29.5,28.1,26,24.5,23.7,23.4,24.5,25.8,27.7,27.5,27.3
1987,28.9,29.2,29.8,27.9,25.6,24.4,23.7,24.4,26.8,28,28.5,29
1988,29.3,29.9,29.4,27,25.9,25.4,24.5,25,25.7,27.9,28,27.2
1989,26.8,28.6,28.2,25.9,24.4,23.8,23.6,23.2,24.9,25.8,26.2,26.7
1990,27.2,28.2,26.9,26,25.4,24.3,24.2,23.9,25.2,27.2,27.1,27.5
1991,28.8,28.6,28.6,27.9,24.9,24.9,23.4,23.6,25.7,27.7,27.9,27.3
1992,28.5,29.2,28.8,26.2,24.8,23.6,22.6,22.8,24.6,27,27.4,27.7
1993,27.4,27.5,27.9,26.4,25.5,24.6,23.5,24,25.5,27,28.2,28.1
1994,27.9,28.5,27.8,26.4,24.7,24.4,23.5,24,25.9,27.2,26.9,27.1
1995,28.2,28.7,28.4,26.9,24.7,24.5,24,23.8,25.7,26.8,27.7,28.3
1996,29,29.7,28.4,26.4,24.8,24.8,23.9,24.4,25.9,26.5,27.5,27.4
1997,29,28.9,27.4,26.6,25,23.9,23.9,24.7,26.5,26.7,27.8,28.2
1998,28.6,29.5,29.2,26.6,25.1,25,24.3,24.4,25.2,27.3,28.2,28.6
1999,29.4,29,28.2,27,25.1,25,23.5,24.5,26.4,27.2,28,27.9
2000,28.3,28.9,28.9,27.8,26.4,24.1,24.4,24.7,25.9,27.6,28.7,27.3
2001,28.1,28.7,29.6,26.3,25.4,24.5,23.8,24.6,25.8,27.6,28.1,28.2
2002,29,29,29.3,27,25.7,24.7,24.2,24.2,26.1,28.1,27.8,28.8
2003,28.8,29.2,29.6,27.6,25.8,25.2,23.6,24.7,25.4,28.2,28.1,27.8
2004,30.4,30.4,29.4,26.7,26,24.3,24.3,24.9,25.9,26.4,27.7,27.5
2005,28.4,29.8,29.3,26.9,25.4,24.9,23.8,24,25.9,27,28.1,28.8
2006,29.7,29.7,29.4,26.2,25.3,23.2,23.8,24.2,25.1,27.4,28.1,27.4
2007,28.2,29.1,28.5,26.7,25.4,23.6,23.2,24.3,26.7,27.2,28.1,27.5
2008,28.9,29.2,28.3,26.5,25.2,23.8,23.4,24.6,26.1,27.5,28,27.6
2009,29.2,29.3,29,27.4,25.4,24.8,23.9,24.8,26.4,27.9,28,29.5
