1901,28.8,29,28.6,27.3,26.1,24.8,24.9,25.5,26.4,26.2,26.4,27.5
1902,28.7,29.8,29.1,28,26.8,25.9,25.7,25.6,26.3,26.6,28.8,29.6
1903,28.3,29.6,29.7,27.5,26.3,26.1,24.6,25.8,27,27.1,27.9,29.3
1904,28.9,29.7,28.8,27.2,25.7,24.5,24,25.1,26.9,26.7,27,27.8
1905,28.7,29.6,27.9,27.2,27.2,25.6,24.8,26.1,27,27.5,27.6,29.1
1906,28.2,28.6,28.7,27.6,26.9,25.7,25.5,26,26.9,27.3,27.5,28.4
1907,28.3,28.9,29.2,27.8,26.2,26.2,24.1,25,27.6,26.8,27.3,28.9
1908,29.2,29.6,28.7,28.1,27.1,26,25.3,25.8,27,26.9,27.7,29.1
1909,29.3,30.1,29.8,27.8,26.4,25.5,25.1,25.8,26.7,26.4,27,28
1910,29.2,29.2,29.3,28,25.7,25.5,24.2,26.1,26.9,25.8,26.8,27.6
1911,29.1,29.1,28.1,27.6,26.7,24.7,24,25.4,26.7,26.6,28.6,29
1912,28.8,29.6,28.8,27.8,27.2,25.1,24.1,25.8,25.8,26,28.3,28.4
1913,29.1,29.5,29.5,28,26.7,24.9,25.1,25.9,27.4,26.9,27.5,27.5
1914,28.6,28.5,28.8,27.4,26,25.9,24.9,25.8,27.3,27.1,27.9,27.9
1915,29.1,29.3,29,28.2,27.6,25.1,24.4,26,26.8,26.5,27,27.7
1916,28.7,28.9,28.1,27.3,26.7,25.2,24,25.3,27,26.1,27.1,27.5
1917,28.6,29,28.5,26.9,25.5,23.6,23.4,24.4,26.3,26.3,26.6,27.9
1918,28.8,28.6,28.4,27.2,26.6,24.9,23.7,24.6,26.4,26.8,27.1,27.5
1919,28.3,28.4,28.3,27.6,27,25.3,24.3,25.1,26.5,27,27.7,28.3
1920,28.9,29,28.7,27.4,26.3,24.9,24.7,24.7,26.3,26.7,27.6,28.3
1921,28.9,29.4,29.2,27.4,26.5,24.5,23.5,25.7,26.4,26.4,26.7,28
1922,29.1,29,29.2,27.9,26.8,25.1,24.3,25.9,26.9,26.9,27.3,28.2
1923,29.1,29.1,29.3,27.9,26.7,25.2,23.5,25.4,26.9,26.9,27.7,29.1
1924,29,29.3,29.3,28.3,26.9,25.1,24.1,25,26.6,25.7,27.1,28
1925,28.7,28.9,28.5,27.9,26.9,24.6,23.6,26.2,27.1,26.4,27.6,28.5
1926,29.1,28.8,29,27.7,26.4,25.3,24.2,25.5,27.4,27.1,28.1,28.7
1927,29,29.1,29.3,28,26.7,24.7,23.7,25.5,27,27,27.9,28
1928,28.8,29.3,29.3,28.4,26.9,25.7,24.5,25.4,27.1,26.8,27.5,28.2
1929,29.4,29.5,29.5,26.9,25.7,24.9,23.8,25.7,27.8,27.3,26.9,28.5
1930,29.2,29.3,29.1,27.4,26.7,25.9,24.5,25.9,26.9,27.2,27.4,28.2
1931,29.3,29.2,29.6,28.2,26.7,25.2,24.7,25.1,26.4,26.7,27.1,28.5
1932,28.7,29.6,28.9,28.3,26.7,25.3,24.8,25.2,27.4,27.3,27.7,28.5
1933,28.9,29.3,28.5,26.8,26.2,24,23.5,25,26.6,26.8,26.6,27.6
1934,28.8,29.3,29.5,27.7,26.4,24.7,23.3,24.8,26.7,26.1,27.2,28.3
1935,28.7,29,29.2,27.3,25.5,25.2,24.8,25.2,26.5,27,27.3,28.6
1936,28.7,28.4,28.5,27.5,27.6,25.5,24,24.9,26.2,26.6,27.2,27.9
1937,28.3,29.7,28.9,27.4,25.9,25,24.4,25.7,26.1,26.6,27.3,27.7
1938,29.6,29.5,29.5,27.7,26.3,24.5,23.6,25.2,26.9,26.9,27.5,28.2
1939,28.8,29,30,27.5,27.5,25.2,23.6,25.6,26.4,26.5,27.6,28.3
1940,29.2,29,28.5,28.2,27.2,25,24.7,25.5,26.4,26.8,27.1,29.2
1941,29.7,30.7,28.7,28.7,27.6,24.4,24.3,26.4,26.3,27.3,27.9,29
1942,30.3,30.6,29.9,27.7,27.5,25.2,23.9,25.5,26.8,27.1,27.7,27.7
1943,28.7,29,29,26.9,27,25,23.8,24.4,26.1,27.9,27.2,27.6
1944,28.6,29.5,30.5,27.1,26.2,24.9,23.4,25,27.3,28,27.3,28.7
1945,29.5,29.7,29.7,27.7,27,24.3,24.2,26.2,26.3,27.2,27.6,28.5
1946,30,30.6,29.7,27.4,28.1,25.1,25.1,26.2,27.9,28,27.8,28.9
1947,29.4,30.4,28.8,27.2,27.9,25.4,24.4,25.6,27.3,26.8,26.3,28.7
1948,29.3,30,28.5,27.6,26.8,25,25,25.8,27.1,27.2,27.6,28.6
1949,28.6,28.2,29.6,27,25.7,25.1,24,24.7,26.7,25.6,26.9,28.1
1950,29.1,29,28.4,27.2,25.4,24.9,23.7,25.1,26.3,27.3,27.1,27.9
1951,28.7,28.7,29.2,26.7,26.2,24.1,23.4,24.6,26.9,27.3,27.4,27.7
1952,29.4,29.5,28.4,27.9,25.7,25.4,24.7,25.7,27.6,27.4,27.8,28.2
1953,29.7,29.5,28.5,27.6,26.4,25.4,24,25.5,27.1,27.2,27.4,27.9
1954,29.4,29.5,29.3,27.5,27.2,25.7,24.5,25.3,27.3,27.4,27.1,27.9
1955,28.7,28.5,29.2,27.2,26.3,24.6,24.4,26.1,27.4,26.6,26.6,28.2
1956,29.5,29,28.6,27.2,27.4,24.3,24.4,24.9,27,26.7,26.8,27.8
1957,28.6,28.9,28.2,27,25.9,24.7,24.5,25.6,27.3,27.1,27.1,27.9
1958,29.2,29.9,29,28.9,27.3,26,24.7,26,27.3,27.3,28.2,28.8
1959,29.3,30.4,29.7,29,27.1,25.3,25.2,26.5,27.5,27.4,27.8,28.6
1960,29.2,29.6,27.8,27.2,26.9,25.1,24.3,25.9,27,27.3,27.3,28.7
1961,29.4,29.5,30,28.3,26.9,25.5,24.6,25.9,28.6,27.1,28.4,28.4
1962,29.5,29.5,29.3,28.2,26.4,24.4,24.3,25.8,27.2,26.2,27.8,28.2
1963,29.8,29.5,31,28.5,26.5,24.7,23.9,25.7,27.4,28.5,28.7,28.6
1964,29.1,30.6,29.5,28.4,26.3,24.8,24.7,25.9,26.9,27.3,26.7,28.8
1965,28.9,29.7,30,28.5,27.6,25.6,25.2,26.5,28.2,27.4,27.8,29.3
1966,28.9,29.7,29.8,28,26.7,25.6,25,25.9,26.8,27.7,27.5,29.2
1967,30.1,30.2,30.1,28.3,26.8,25.9,24.6,26.1,27.5,27.6,27.5,28.1
1968,29.3,29.2,30.5,27.1,26,25.4,24,25.2,26.6,27,27.6,28.5
1969,29.6,30,30.5,28.1,27.1,25.8,25.3,26.5,27.9,28.1,28.5,28.1
1970,29.3,29.5,29.6,27.9,27.4,25.7,24.3,25.7,27.6,27.3,27.7,29.2
1971,29.8,30.2,30.2,28.7,27.2,25.9,25.1,25.9,27.2,26.9,27.4,28.9
1972,29.6,30,30.1,27.9,27.4,26.2,26.1,27,27.3,28.5,29.7,29.3
1973,31.1,30.8,30.4,29.3,27.8,26.9,25.9,27.1,28.3,28.1,27.8,29.4
1974,30.3,29.6,28.5,28.2,27.6,25.4,24.3,26.5,28.1,27.9,27.9,28.8
1975,29.2,30.1,29.8,27.3,26.3,25.4,24.5,26.1,27.5,27.4,27.8,28.3
1976,29.4,28.6,29.2,27.9,27.1,25.6,25.2,26.4,28,27,28,29.2
1977,29.3,29.8,30.5,28.5,26.5,25.4,25.4,26.6,27.6,27.4,28.5,28.8
1978,29.3,29.4,28.5,27.8,27,24.9,25.4,26.2,27.2,27.5,29.2,27.6
1979,27.8,28.4,28.2,26.8,27,24.9,24.8,26.4,27.4,27.9,27.9,29.4
1980,29.2,29.3,29.3,28.2,27.3,25.7,25,26.8,27.3,27.6,27.8,28.9
1981,29.4,29.7,28,27.4,26.8,25,24.2,26,27.1,26.6,28,28.9
1982,29,29.6,29.8,26.9,25.7,25.9,25.4,26.4,26.5,27.6,28.5,29.2
1983,29.6,30,29.2,28.4,27.7,26.2,25.7,26.2,27.4,27.5,28,28.9
1984,29.9,30.5,30.2,27.8,28.2,26.3,25.5,26.4,27.3,27.4,27.9,29.4
1985,29.4,30.3,29.7,28.3,27.8,24.7,24.5,26.4,27.2,27.6,28,28.3
1986,28.9,30.4,29.9,28.6,28.2,25.6,24.9,26.9,27.2,27.4,27.8,29.7
1987,30.6,31,29.3,29.2,27.3,26.6,25.7,26.7,27.8,28.5,28.3,29.6
1988,30.6,30.5,30,28.3,27.8,26.2,24.8,26.2,28.4,28.5,28,29.1
1989,30,31.2,29.8,29.3,27.6,26.2,24.7,26.9,28.5,27.7,28.9,28.6
1990,30,30.7,31,29.9,27.6,25.7,25.4,26.4,27.3,28.1,29.1,29.9
1991,29.6,29.7,29.5,28.2,27,25.9,25,25.6,26.9,27.5,27.9,28.8
1992,28.8,29,29.3,28.7,28.2,25.9,25.3,26.2,27.1,27.4,27.6,28.2
1993,29.7,28.7,30.1,28.7,27,25.7,25.5,26.2,28,28.1,28.7,29.1
1994,29.9,30.1,29.5,28.4,27.9,25.9,24.5,25.7,26.8,27.1,28.7,28.7
1995,31.5,29.7,29.8,28.6,27.2,24.9,25.1,27.6,27.1,27.5,27.7,28.3
1996,29.3,29.9,30,26.3,26.6,24.4,25.6,26.1,27.8,27.4,25.8,29.2
1997,30.1,29.7,28.5,27.5,25.6,24.5,23.9,27,28,27.6,28.5,29.1
1998,29.8,30.3,31.1,29.7,27.6,25.5,25.3,27.8,27.6,28.7,29,29.7
1999,30.4,30.6,29.8,28.8,27.1,26.1,26.1,25.8,27.6,27,27.5,29.3
2000,29.7,29.9,29.7,28.4,27.2,25.6,25.1,26.4,27.6,28.5,28.3,29.2
2001,29.8,30.6,29.5,29.4,28,26,25.5,26.2,27.5,27.1,28.5,29.4
2002,29.5,29.6,30,28.9,28.2,26.6,26.5,27.2,28.2,28.7,28.6,30
2003,30.6,30.7,30.3,29.2,27.7,26.1,25.7,26.8,28.1,27.8,28.7,30
2004,29.8,30.2,28.3,28.5,27.5,25.8,24.9,26.3,28.1,28.2,28.5,29.5
2005,30.3,31,30.2,29.1,27.8,26.3,25.1,27,28.3,28.8,27.9,28.9
2006,30.1,30.7,30.2,28.7,26.9,25.5,23.9,27.1,27.8,27.9,28.2,29.5
2007,30.5,29.9,30.4,28.9,27.1,25.6,25.7,26.5,27.7,28,28.6,29.1
2008,29.4,29.8,29.8,29.8,26.9,25.7,24.6,26.5,27.8,28.5,28.2,28.7
2009,29.9,30.3,30.4,28.7,27.3,25.9,26,27.1,28.9,28.3,28.9,30
