1901,27.3,27.3,26.6,24.7,23.1,21.3,22.7,22.5,22.8,23.9,24.2,25.4
1902,27.5,28.4,27.2,25.8,24.2,23.2,23.7,22.2,23.1,24.1,27.9,28.3
1903,26.8,28.6,28.5,24.4,22.4,23.2,21.6,23.1,23.6,24.6,26.2,28.1
1904,27.9,28,27.3,24.5,22,21.2,21.8,22.7,23.9,24.3,25.4,26.4
1905,27.3,28.7,26.1,25.1,24.5,22.7,22.4,23.3,23.8,25.8,25.6,28.1
1906,26.6,26.9,26.7,25.3,24.8,23.7,23.4,23.7,23.5,25.1,25.8,27
1907,27,27.6,27.4,25.1,22,23.1,21.5,21.7,24.6,23.9,25.5,27.8
1908,27.8,27.3,26.4,25.4,23.6,22.9,22.9,22.2,23.3,24.2,26.2,27.8
1909,28.3,29.2,27.4,24.8,22.4,22,23,22.9,23.2,23.3,25.2,26
1910,28.6,27.6,27.8,26.1,22,23.2,21.3,23.4,23.3,22.3,24.4,25.7
1911,28.7,27.1,26.2,24.9,22.8,20,20,22.3,23.3,23.7,27.7,28.2
1912,27.6,28.5,27.8,25,24.5,22.7,21.1,24.1,21.7,22.7,27.1,26.7
1913,27.4,27.9,28.2,26.1,23.4,21.1,23.7,22.8,24.3,23.9,25.1,25.4
1914,28.5,28.8,29.4,25.1,22.6,25.4,24.3,23.8,26.1,25.2,27.9,26.6
1915,28.9,28.6,28,26.9,26.9,23.4,23.5,24.9,24.2,24,24.7,27
1916,27.4,26.8,27.6,24.9,25.1,24.4,22.4,23.3,24.9,23.5,25.7,26.3
1917,27.9,27.6,26.7,24.2,22.5,20.5,21.6,21.5,23.8,24.1,23.7,27.1
1918,27.9,28.3,28.2,25.3,24.7,22,21.6,21.5,22.9,24.3,26.1,26.8
1919,26.6,27.3,27.1,26.4,25.8,24,22.8,23.2,23.6,25.3,27.5,27.8
1920,28.2,28.2,28,25.6,23.9,22.8,23,21.5,23.6,24.5,26.9,26.5
1921,28.3,29.1,28.5,25.6,23.5,22.5,21.7,24.4,23.5,23.4,25.2,26.5
1922,29.1,28.7,28.2,26,24.4,23.2,22.7,25,24.5,24,26.3,27.1
1923,29,28.3,28.4,27.5,24,23.2,20.9,23.6,24.2,24.6,26.5,28.9
1924,27.2,27.2,28.6,27.1,24.1,23,22.6,23,23.6,22.5,25.6,26.8
1925,27.9,28.1,26.7,26.2,24.9,21.3,20.7,25.2,24.6,22.9,25.6,28.2
1926,28.2,27,27.8,25.7,23.5,23.8,23.1,23.4,25.2,25.1,26.6,27.2
1927,28.1,28.1,28.3,26.5,23.8,21.8,22.4,22.6,23.6,24.8,26.4,27.3
1928,28.1,28.8,28.3,27.5,24.6,24.2,22.6,23,24.1,24.6,25.8,27.3
1929,28.3,28.4,27.5,24.4,22.8,23.2,22.4,24.1,24.4,26.2,24.6,28.9
1930,29.7,28.9,29.3,25.8,24.1,25.2,23.4,23.7,24.1,25.3,25.4,26.9
1931,28.8,27.1,27.8,26.5,23.5,22.7,22.7,22.5,22.9,24.4,25.4,27.7
1932,27.5,28.9,28.3,27.5,23.7,22.3,24.5,22.6,25,25.9,26.4,28
1933,27.8,28.9,27.8,24.7,23.6,22.4,21.7,23.5,23.7,24.9,24.9,25.4
1934,28.5,28.9,28.8,26.3,25.3,24.4,21.8,23.4,24.2,23.7,26.4,26.6
1935,27.7,28.5,29.1,25.3,22.2,24.2,24.6,23.3,24.3,24.9,26.1,28.7
1936,29.6,27.9,28,26,26.8,25.4,22.9,22.1,22.9,25,25.8,27.1
1937,26.6,29,27.9,25.9,23.1,23.7,23.2,25.2,23,24.3,25,25.6
1938,29.6,28.5,29.5,25.4,24.1,23.3,22,23.5,23.8,25,26.3,26.4
1939,28.5,28.5,29.3,26.2,25.1,23.6,22.2,23.6,23.3,24.1,26,26.7
1940,28.5,27.5,28.8,27.5,25.6,24.1,23.4,24.2,23.8,24.9,25.5,29.9
1941,29.2,29.5,28.6,28.1,26.2,23.2,22.7,26,22.8,24.7,27.2,27.9
1942,28.9,29.9,29.3,26.5,24.6,23.6,20.6,23.5,24.3,25.9,26.6,26.4
1943,28.2,29,29.5,24.5,24.5,24,23.2,22,23.8,24.4,26.2,26
1944,29.6,28.5,29.4,25.4,23.9,24.2,21.5,23.6,24.5,26.5,25.4,26.9
1945,28.1,29.9,27.8,26.1,23.5,22.7,22.8,24.7,23.7,25.5,26.2,26.2
1946,28.3,30.5,28.1,24.8,25.5,23.5,22.8,25,25.6,25.7,26.5,27.6
1947,29.6,29.1,26.9,26,25.1,24.2,21.8,22.6,24,23.1,24.2,26.3
1948,30.2,28.8,26.9,26.3,23.9,23.7,24.8,23,24.2,24.7,26.3,27.1
1949,28.7,28.2,29.3,25.6,23.7,24.2,22.5,23.7,24.5,23.9,25.3,27.2
1950,28,28.8,28.8,26.8,25.7,23.8,23.5,25.2,25.5,25.4,25.2,28.1
1951,28.8,28.7,27.8,24.9,24.6,23.3,21.6,22.7,25.1,25.6,26.6,25.6
1952,28.6,28.1,28.9,25.3,25,23.9,23.8,25.8,24.6,26.9,26.9,28.3
1953,30.8,28.6,30.3,26.3,24.9,24.4,22.1,25.2,25.9,26.6,26.7,27.3
1954,30.9,30.2,29.5,25.7,24.4,24.6,24.7,24.6,26.3,25.3,26.7,28.4
1955,29,30.1,29.6,26.6,24.2,23.8,23.9,23.7,25.3,23.7,24.9,27.3
1956,30.8,29.2,28.3,26.2,22.2,21.1,22.3,22.3,25.4,24.3,24.4,26.3
1957,29.3,28.8,28.1,26.1,23.7,23.1,22.9,24.3,24,27.1,25.8,28.3
1958,29.1,30.3,28.5,26,24.1,23.6,23.4,26.1,25.1,26.1,28.5,29.3
1959,29.7,29.8,28,29.5,25.2,23.4,25.3,24.5,25.8,26.4,26.5,27.7
1960,28,27.3,27.4,26.2,23,23.3,24.1,24.5,25.1,27.8,26.5,25.7
1961,29.1,28.9,28.5,27.3,24.4,23.7,24.2,26,26.8,27.8,27.6,28
1962,27.6,28.3,28.7,25.9,23.7,21.4,22,23.6,24.7,24.4,26.2,26.5
1963,29.7,28.3,29.4,26.3,24.4,23,23.9,24.7,26.2,25.8,27.1,26.8
1964,27.5,27.7,28.2,26,23.1,22.1,20.9,23.9,25.3,24.4,25.6,26.9
1965,27.2,28.9,27.8,26.7,24.4,24,23.5,25.6,26.2,26.3,26.8,29.6
1966,29.9,31.2,29.5,25.9,24.2,24.7,24.3,23.2,24,25.6,26,28.3
1967,28.4,29.1,28,26.3,25.3,23.7,23,26,25.3,26.7,25.7,26
1968,28.8,27.4,28.2,24.6,22.5,22.4,22.4,22.6,23.9,24.9,26.6,28.9
1969,29.8,29.7,28.3,26,25.1,23.9,22.9,23.8,25.3,24.1,26.9,26.3
1970,28.2,29.5,28.8,26.3,25.4,24.6,22.8,23.4,23.5,24.6,24.7,29.3
1971,31.2,29.9,29.2,26.2,24.2,22.6,23.4,23.9,24.5,24.6,25.4,28.1
1972,29.6,28.8,29,26,25.1,26.2,23.5,24.8,25,25.7,26.6,28.1
1973,30.3,30.5,28.1,28.1,24.4,24.8,24.4,23.2,23.6,25,24.8,28.3
1974,28.2,28.6,28.1,25.8,24.9,22.8,24.1,24.7,24.9,25.3,27.7,27.2
1975,28.7,29.7,29.5,25.2,23.7,22.7,22.5,26,25.7,25.6,27.2,29
1976,29.4,28.3,29.3,26.7,24.3,23.3,22.6,24.4,24,24.7,26.8,27.9
1977,28.9,29.7,28.9,26.2,25,24.3,25.8,24.8,24.7,25.8,26.2,26.8
1978,29.2,28.9,28,25.7,24.4,22.3,24.4,25.2,24.8,26.2,27.3,27.9
1979,26.7,28.3,27.3,25.9,25.4,23.1,22.7,25.2,24.3,26.8,26.4,28.2
1980,28.2,30,30.9,26.8,26.2,24.6,24.1,25.3,23.7,25.7,27.3,28.9
1981,30.3,30.6,29.7,26,26.1,24.2,22.3,24.3,25.7,25,27.6,28.1
1982,27.5,29.1,27.2,25,23.6,24.9,24.2,25,25.1,26,27.8,27.5
1983,29.1,29.7,28.6,26.7,25.9,24.2,23.8,23.4,22.8,25.2,27.5,27.9
1984,30.8,29.9,28.2,25.9,26.4,24.9,24.5,23.1,24.1,26.5,26.4,26.8
1985,27.3,29.7,29.1,28,24.4,22.3,23.4,25,24.1,25.9,26.6,27.2
1986,29.9,30,28.9,27.7,26.1,23.7,22.6,24.4,24.4,25.7,27.7,27.9
1987,30.1,29.4,28.4,27.5,25.3,23.1,25.7,23.9,24.1,25.4,26.9,28.5
1988,31.3,28.3,28.7,26.5,23.8,22,21.3,24.2,24.8,24.9,26.3,27.3
1989,29.2,28.8,28.8,27.7,24.1,23.6,22.4,24.3,24.7,23.7,27.1,27
1990,30.3,29.2,29.5,29,24.1,23.9,22,22.6,24.2,26.6,28.2,27.9
1991,28.2,28.9,28.4,27.3,25.6,25.3,23.2,24.3,24,25.6,27.5,28.8
1992,28.1,28.8,28.9,27.5,26.4,25.5,23.6,22.8,23.9,25.4,26.8,27.6
1993,29.5,29.5,30,28.4,24.5,23.8,25,23.5,25.3,26.1,29.8,28.4
1994,28.4,31.2,29.1,26.8,25.3,23.3,24.4,22.7,24.9,26,27.5,29.2
1995,31,28.9,28.9,27,24.1,24.2,24.9,26.8,25.2,24.5,27,27.4
1996,29.5,29.1,28.9,28,23.2,23.5,21.9,22.8,23.2,25.3,26.2,28.7
1997,28.6,29.2,28.4,26.8,23.8,23.4,24.5,24.6,25.7,27.6,28.6,29.8
1998,30.9,30.4,29.9,27.7,24.8,23.5,23.7,25.9,25.4,24.8,27,28.4
1999,29.6,29.2,29.6,26.4,23.9,23.8,23.4,23.5,25,23.5,26,27.5
2000,28.9,28.6,28.4,27,24.3,24,22.2,23.7,24.6,27.2,27.2,28.1
2001,30.7,30.7,30.1,28.6,25.4,24.7,24.6,24.9,25,26.4,27.6,28.1
2002,29.7,28.6,30.4,28.9,26.3,26,24,26.6,24.6,28.7,28,29.2
2003,28.5,31.3,29.4,27.8,25.3,25.8,24.8,23.8,25.1,26.4,27.5,28.9
2004,29.1,28.3,28.2,27.5,24.8,23.9,23.4,24.5,27.1,25.9,27.5,27.9
2005,29.5,29.3,29.3,28.5,26.1,25.1,24.2,25.9,24.9,27.5,26.6,27.4
2006,30.7,30.4,29.3,27.2,24.4,24,24.9,25.6,25,26.2,26.9,28.7
2007,29.6,29.9,30.5,28.1,25,25.3,24.2,25.1,26.3,27.4,27.1,28.9
2008,28.8,29.4,28.8,28.1,24.9,24.4,24.5,25.7,24.8,27.1,27,27.7
2009,29.4,30.2,30,27.2,26,23.8,24.7,25,26.4,26.3,29.5,28.6
