1901,31.4,31.2,31.4,31.5,31.3,30.9,30.4,30.6,31,31.5,31.9,31.6
1902,31.4,31.2,31.4,31.5,31.3,30.9,30.4,30.6,31,31.5,31.9,31.6
1903,31.7,31.3,31.6,31.6,31.2,30.9,30.4,30.4,30.9,31.2,31.8,31.6
1904,31.5,31.1,31.4,31.4,31.2,30.6,30.1,30.1,30.6,31.2,31.5,31.6
1905,31.6,30.9,31.4,31.6,31.2,31,30.1,30.1,30.8,31.4,31.7,31.8
1906,31.6,31.6,31.6,31.7,31.3,30.9,30.3,30.3,30.9,31.2,31.9,31.8
1907,31.4,31.3,31.2,31.6,31.2,31,30.2,30.4,30.6,31.1,31.7,31.7
1908,31.4,31.4,31.5,31.4,31.1,30.6,30.2,30.5,30.8,31,31.7,31.6
1909,31.6,31.5,31.5,31.7,31.6,31.1,30.8,30.8,31,31.6,32,31.6
1910,31.6,31.3,31.5,31.7,31.4,31.1,30.6,30.7,31.1,31.7,31.9,31.9
1911,31.7,31.2,31.6,31.7,31.2,30.8,30.2,30.6,30.5,31.2,31.9,31.9
1912,31.4,31.6,31.6,31.8,31.2,31.2,30.3,30.2,30.8,31.3,31.9,31.8
1913,31.7,31.3,31.6,31.5,31.4,30.9,30.3,30.3,30.5,31,31.9,31.6
1914,31.7,31.2,31.6,31.8,31.3,30.9,30.2,30.1,30.4,30.9,31.5,31.6
1915,31.4,31.4,31.6,31.4,31.4,30.9,30.5,30.5,31.1,31.4,32,31.9
1916,31.3,31.4,31.6,31.6,31.2,31,30.7,30.8,31,31.5,32.1,31.8
1917,31.6,31.4,31.4,31.7,31.4,30.9,30.7,30.6,31,31.5,32.1,31.4
1918,31.5,31,31.3,31.5,31,30.5,29.9,30.1,30.4,31.1,32,31.7
1919,31.4,31.4,31.5,31.5,31.2,30.4,29.9,30.1,30.6,31,31.9,31.6
1920,31.4,31.2,31.7,31.7,31.3,31.1,30.3,30.4,30.8,31.3,31.7,31.6
1921,31.5,31.5,31.7,31.3,31.2,31,30.4,30.3,30.9,31.4,31.7,31.7
1922,31.7,31.5,31.5,31.4,31,30.9,30.6,30.2,30.9,31.4,31.6,31.8
1923,31.7,31,31.1,31.4,31.1,30.6,29.8,30.6,30.3,31.3,31.8,31.9
1924,31.4,31.5,31.9,31.2,31,30.8,29.8,30.2,30.5,31.4,32,31.3
1925,31.7,31.4,31.3,30.8,30.4,30.4,29.6,29.8,30.2,30.3,31.3,31.7
1926,31.4,31.5,31.9,31.6,31.6,30.8,30.2,30.3,30.8,31.5,31.5,31.7
1927,31.3,31.7,32.2,31.6,31.2,31.2,30.1,29.6,29.9,30.6,31.3,31.6
1928,31.5,31.6,31.7,32,31,30.3,29.7,30,30.6,31.3,31.8,32
1929,30.9,30.5,31.4,31.6,30.4,30.6,30,29.5,29.8,30.8,31.6,30.8
1930,31.4,30.8,31,31.5,31.5,30.9,29.7,29.9,29.6,30.9,31.1,31.3
1931,31.8,31.2,31,30.4,30.8,30.1,29.3,30.6,29.6,31.5,31,31.6
1932,31.8,31.5,31.8,32,31.3,30.7,29.5,29.8,30.2,31,31.5,31.6
1933,31.9,31.5,31.8,31.6,30.9,30.7,30.2,30.4,30.5,31.1,31.5,31.5
1934,31.6,31.7,31.4,31.7,31.2,31.2,30.5,30.3,29.9,30.9,32.2,31.6
1935,31.7,31.7,31.5,31.4,30.8,30.8,30.5,29.9,30.5,31.2,31.3,31.6
1936,31.9,31.4,31.8,31.5,30.8,30.9,30.3,29.6,30.6,30.9,31.8,31.9
1937,31.7,31.6,31.8,31.6,31.4,31.1,30.5,30,30.5,31.2,31.8,32
1938,31.6,31.2,31.5,31.7,30.7,30.9,30.3,30.6,30.1,30.7,31.5,31.3
1939,31.5,31,31.2,31.4,30.7,30.7,30.5,30.4,30.3,30.9,31.7,31.9
1940,31.4,31.2,31.4,31.4,31.2,30.9,30.3,30.1,30.3,30.3,31.7,31.9
1941,31.3,30.8,31.2,31.1,31,30.4,29.1,29.4,29.7,31.5,30.8,30.9
1942,31.3,31.5,31.4,32,31.6,31.2,31,30.2,30.8,31.3,31.5,31.7
1943,31.1,31.2,31,30.8,30.5,30.3,30.3,30.2,30.6,30.9,31.3,31.4
1944,31.5,31.3,31.3,31.4,31.2,30.7,30.3,30.4,30.6,31.2,31.6,31.8
1945,31.6,31.4,31.5,31.4,31,30.8,30.3,30.7,31.1,31.4,31.6,31.4
1946,31.5,31.2,31.4,31.2,31.1,30.4,30,30.3,30.8,31.3,31.7,31.5
1947,31.4,31.4,31.5,31.6,31.1,31,30.5,30.7,31.2,31.4,31.9,31.5
1948,31.6,31.2,31.4,31.3,31.2,30.8,30.6,30.5,30.4,31.3,31.4,31.1
1949,31.9,31.4,31.3,31.4,30.7,30.3,30.4,30.2,30.7,31.4,31.5,31.2
1950,30.8,31,31.3,31.6,30.9,31.2,30.5,30.7,31.1,31.4,32.2,31.4
1951,31,31.8,31.4,31.3,30.9,30.5,30.5,30.6,30.9,31.4,31.7,32
1952,31.3,31.5,31.6,31.8,31.5,31,30.5,30.8,30.8,31.7,31.8,31.5
1953,31,30.9,31.5,31.3,31.1,30.8,30.2,30.4,30.7,31.7,31.9,31.6
1954,31.2,31.3,31.4,31.5,30.9,30.8,30.3,30.3,30.8,31.1,31.2,31.3
1955,30.9,30.9,31.1,31.2,31.3,30.9,30.5,30.6,31.1,31.5,31.5,31.6
1956,31.1,31,31.6,31.5,31.6,31.3,30.9,30.8,31,31.7,31.8,31.3
1957,31.4,30.8,31.4,31.3,31.1,31.1,30.4,30.5,30.7,31.3,31.9,31.7
1958,31.7,31.3,31.7,31.9,31.9,31.6,30.5,30.9,31.3,31.7,31.5,31.6
1959,31.1,31.2,31.2,31.2,31,30.4,30.1,30.2,30.6,31.1,31.7,31.7
1960,30.9,31,30.8,30.9,31.1,30.3,30.2,30.5,30.9,31.2,31.8,31.1
1961,30.8,31.4,31.5,31.3,30.8,30,30.1,30.1,30.4,30.6,31.6,31.5
1962,31.7,31,31.2,30.8,30.8,30.7,30.1,30.2,30.8,31.6,31.9,31.2
1963,31.5,31.2,31.2,31.3,31.2,30.7,30,30.3,30.9,30.8,31.3,31.5
1964,31.1,31.2,31.1,31.4,31,30.7,30.7,30.3,31,31.5,31.1,31.2
1965,30.6,30.9,30.7,31,30.7,30,28.6,29.5,30.5,31.1,31.3,31
1966,30.5,30.9,30.9,31.3,30.9,30.3,29.9,30.3,31,31.1,31.3,31
1967,30.6,30.6,30.8,31,30.7,30.2,29.9,30.3,30.7,30.9,31.5,31.4
1968,30.9,30.3,31.3,31.1,30.9,31,30.4,30.6,30.7,31.2,31.4,31.3
1969,30.8,30.9,31.4,31.6,31.4,30.8,30.3,30.4,30.7,31.3,31.7,31.6
1970,31.3,31.3,31.3,31.5,31.1,31.1,30.2,30.5,31.2,31.6,31.6,31.4
1971,31.4,31.2,31.4,31.5,31,30.8,30.3,30.8,31.1,31.7,32.1,31.7
1972,31.4,30.8,31.1,31.4,31.1,30.9,30.3,30.1,30.2,31.3,32,31.7
1973,31.5,31.6,31.5,31.6,31.5,31.5,30.7,31.1,31.3,31.5,31.7,31.6
1974,31.3,31.4,31.2,31.3,31.2,30.4,30.4,30.7,31.2,31.5,32,31.6
1975,31.4,31.2,31.2,31.5,31.5,30.9,30.8,30.8,31.1,31.6,32.1,30.7
1976,31.2,31.4,30.6,31.3,31.4,30.8,30.6,29.9,30.7,31.8,32.5,31.8
1977,31.3,31.5,31.5,31.4,31,30.5,30.3,30.4,30.9,31.3,31.9,31.8
1978,31.7,31.2,31.8,31.6,31.8,31.2,30.8,30.8,30.7,31.3,32,31.8
1979,31.4,31.5,31.7,31.6,31.4,31.2,30.5,30.6,31.2,31.7,32.2,31.7
1980,31.6,31.2,31.6,32,31.9,31.5,30.6,30.5,30.9,31.6,32,31.8
1981,31.5,31.3,31.5,31.6,31.7,31.2,30.9,30.9,31.6,31.4,32.2,31.9
1982,31.7,31.5,31.7,31.7,31.5,31,30.1,30.1,30.8,31,31.9,32
1983,31.7,31.7,31.3,31.8,31.2,31.3,30.4,31,31.4,31.9,32.4,32
1984,31.9,31.5,31.5,31.7,31.2,30.8,30.5,30.7,31.4,31.5,32.2,31.7
1985,31.4,31.6,31.9,31.1,31.6,30.6,30,30.5,31.1,31.8,32.3,31.8
1986,31.7,31.8,31.9,31.5,31.9,31.3,30.8,31.1,31.2,32,32,32
1987,31.8,30.9,31.8,31.8,31.5,31.6,30.5,30.8,31.7,31.9,32.8,32.5
1988,32.1,31.6,31.7,32.2,31.3,31.4,31.1,31.3,31.6,32.2,32.5,31.8
1989,31.6,31.7,31.4,31.7,31.6,31.4,31,30.9,31.5,31.8,32.5,31.8
1990,31.9,32.4,32.4,31.9,31.9,31.2,31.1,30.8,30.9,31.5,32.3,32.3
1991,31.7,30.9,31.7,32,30.9,31,30.8,30.7,30.7,31.2,32.1,32
1992,31.6,31.5,31.7,31.5,31.5,30.8,30.3,30.8,31.7,31.4,32.1,31.2
1993,31.3,30.9,31.7,31.6,31.5,31.2,31,30.5,31.4,32.3,32.4,31.8
1994,31.8,31.4,32,31.6,31.2,30.7,30.2,30.2,30.8,31.8,31.8,31.6
1995,31.5,31.3,31.5,31.6,31.1,31.2,30.6,30.7,30.8,31.1,32,31.5
1996,31.7,31.5,31.5,31.5,30.9,31.2,30.3,30.8,31.4,31.5,31.9,31.6
1997,31.3,31.2,31.3,31.4,31.2,31,30.4,30.5,30.9,31.4,31.8,31.7
1998,31.5,31.4,31.5,31.6,31.4,31.1,30.7,30.6,31,31.5,32.1,31.5
1999,31.5,31.3,31.4,31.4,31.1,31.1,30.5,30.5,30.9,31.4,32,31.5
2000,31.5,31.2,31.4,31.5,31.1,30.6,30.3,30.5,30.8,31.4,32.2,31.4
2001,31.4,31.2,31.5,31.6,31.2,31.1,30.4,30.4,30.9,31.5,32.1,31.5
2002,31.6,31,31.6,31.6,31.5,31.1,30.5,30.4,30.9,31.5,32,31.9
2003,31.3,31.3,31.4,31.7,31.5,31.3,30.7,30.6,31,32,32,32.3
2004,32.2,31.2,31.5,31.7,31.5,30.9,30.4,30.4,30.8,31.5,32,31.6
2005,31.5,31.5,31.5,31.5,31.2,30.9,30.5,30.5,31,31.5,31.9,31.6
2006,31.3,31.2,31.3,31.3,31.1,30.7,30.2,30.6,31,31.5,31.9,31.6
2007,31.4,31.2,31.4,31.5,31.3,30.9,30.2,30.4,30.9,31.5,31.8,31.6
2008,31.4,31.2,31.3,31.4,31.1,30.9,30.3,30.5,31,31.5,32,31.5
2009,31.4,31.1,31.5,31.5,31.3,30.9,30.3,30.5,31,31.5,31.9,31.6
