1901,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1902,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1903,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1904,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1905,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1906,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1907,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1908,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1909,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1910,31.2,31.6,31.3,30.7,30.4,29.9,30.1,30.9,31.5,31.6,31.4,31.5
1911,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.7,31.5,31.6
1912,31.2,31.6,31.4,30.9,30.4,30,30.1,31,31.5,31.7,31.5,31.5
1913,31.2,31.7,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.6,31.5,31.6
1914,31.4,31.7,31.4,30.8,30.4,29.9,30.2,30.9,31.6,31.7,31.5,31.6
1915,31.3,31.7,31.4,30.9,30.9,30,30.2,31.1,31.5,31.8,31.2,31.5
1916,31.3,31.6,31.4,30.9,30.4,29.6,30.2,30.9,31.6,31.5,31.3,31.3
1917,31.1,31.5,31.1,30.4,30,29.6,30.1,30.5,31.1,31.3,31.2,31
1918,30.8,31.3,31.5,30.7,30.3,30,30.1,30.7,31.5,31.7,31.5,31.5
1919,31.2,31.7,31.3,30.8,30.4,30,30.1,30.9,31.5,31.6,31.4,31.5
1920,31.2,31.6,31.3,30.8,30.4,29.9,30.1,30.9,31.5,31.7,31.4,31.4
1921,31.1,31.4,31,30.5,30.2,29.7,29.5,30.6,31.3,31.6,31.1,31.5
1922,31.2,31.5,31.1,30.7,30.3,29.7,30,30.8,31.5,31.6,31.3,31.3
1923,30.6,31.5,31,30.4,29.9,29.9,29.5,30.7,31.4,31.7,31.5,31.2
1924,31.8,31.9,31.6,31,30.2,29.4,30,30.6,31,31,31.2,31.1
1925,30.7,31,30.7,30.6,30.4,29.8,30,30.7,31.3,31.9,31.5,31.8
1926,31.5,31.9,31.7,31.1,30.4,29.9,30.1,30.9,31.5,31.4,31.5,31.1
1927,30.8,31.2,31,30.6,30.1,29.7,29.7,30.6,31.2,31.1,31.3,31.6
1928,31.1,31.5,31.1,30.8,30.2,29.8,29.9,30.6,31.2,31.4,31.2,31.2
1929,31.2,31.6,30.9,30.7,30.2,29.8,29.7,30.7,31.4,31.5,31.3,31.3
1930,31,31.4,31.4,30.7,30.2,29.9,29.9,30.7,31.2,31.4,31.5,31.5
1931,31.6,31.9,31.6,31.1,30.4,30,29.8,30.8,31.3,31.7,31.4,31.2
1932,30.8,31.6,30.9,30.6,30,29.7,30,30.7,31.3,31.4,31.6,31.3
1933,30.9,31.2,30.8,30.6,30.2,29.5,30,31,31.7,31.2,30.8,30.9
1934,30.9,30.8,30.6,30.6,30.2,29.9,29.9,30.8,31.3,31.1,31.1,31.4
1935,31.3,31.2,31.3,30.6,29.8,29.5,30.1,30.6,31.2,31.7,31.4,31.6
1936,30.7,31.7,30.9,30.4,30.4,30,30,30.8,31.6,31.6,31.7,31.6
1937,30.8,31.2,31.2,30.7,30.4,29.9,30.1,31,31.7,31.6,31.7,31.7
1938,31.3,31.6,30.8,30.2,30,29.6,30.2,30.5,31.6,31.7,31.4,31.4
1939,30.7,31.1,30.5,30.1,30.2,29.8,30.2,30.5,30.9,31.8,31.7,31.8
1940,31.3,32,31.8,30.6,30.6,30.2,30.3,30.4,31.3,31.8,31.8,31.8
1941,30.9,32,31.8,31.1,30.6,29.5,30.8,31,31.3,33,33.3,33
1942,31.6,31.3,31.6,31.1,30.1,29.7,30.8,30.9,31.3,32.3,32.4,31.3
1943,31.8,31.3,31.7,30.9,30,29.8,31.3,30.6,31.6,32.2,32.4,31.9
1944,31.3,31.5,30.8,30.7,30.6,30,31.7,31.3,31.7,32.5,32,32.3
1945,31.3,31.7,31.5,30.5,29.9,29.2,30.7,31.1,32,32.1,31.9,32.2
1946,30.8,31.5,31.4,30.5,30.2,30,30,30.4,31.1,31.9,31.9,31.8
1947,31.1,32.1,32.2,30.6,30.2,29.7,30,30.2,31.1,31.4,31.6,31.7
1948,31.3,31.3,30.9,30.2,30.6,29.7,30.3,30.6,31.5,32.1,31.7,31.7
1949,31.8,31,31.6,29.6,30.2,29.6,29.8,30.5,31.3,31.6,31.6,32.2
1950,31.2,31,30.6,30.7,30.4,29.4,29.5,30.3,31.4,31.6,31.5,31.3
1951,30.7,30.2,30.8,29.8,30.1,29.5,30.2,30.3,31.3,31.9,31.5,31.4
1952,30.6,31.8,31.6,30.3,30.2,29.2,29.9,30.2,30.8,31.8,31.9,31.6
1953,30.8,31,30.7,30.5,30.5,29.7,29.7,30.5,31.9,31.9,31.9,32.3
1954,31.1,32.4,30.9,30.7,30.3,29.9,29.6,31,31.7,31.2,31.4,31.3
1955,31.3,31.3,30.9,29.9,30.2,30.1,29.3,30.3,31,31.7,31.4,31.5
1956,30.5,30.5,30.6,30.3,29.9,29.8,29.8,29.7,31.1,31.2,31.4,31.7
1957,30.6,31.3,31.1,30.7,30.7,29.8,29.9,30.7,32.1,31.7,31.3,31.6
1958,32.1,32.2,31.5,30.7,30.5,30.2,30.3,30.6,32.4,32.2,31.5,32.6
1959,32.5,31.6,31.5,31,30.1,30.2,30.6,31.4,31.7,31.4,32.3,31.7
1960,32.2,31.8,31.8,30.6,30.4,30.4,30.3,31.1,31.2,32.6,31.8,32.5
1961,31.4,32.1,32,31.8,31.4,30,31.5,31.9,32.7,32.5,32.5,31.9
1962,32.2,32.5,31.9,31.3,30.5,30.3,30,31.8,32.8,32.4,32.2,33
1963,32.3,31.7,31.4,31.2,30.8,30.5,31.3,32.3,32.8,32.9,32.3,32.2
1964,32.5,33.2,31.7,30.9,30.4,30.1,30.1,31.4,31.5,32,31.6,32.3
1965,31.8,32,31.8,31.1,30.9,30.3,30.6,30.9,32.2,32.9,31.5,31.8
1966,31.6,32.9,31.5,31.2,31,31,30.3,31,31.8,32.6,31.9,31.8
1967,30.6,31.5,31.4,30.5,30.7,30,30.8,31.4,32.4,31.6,33.1,32.4
1968,31.1,32.2,31,30.7,29.4,29.8,30.7,31.3,31.1,32.1,31.8,32.6
1969,31.1,31.9,31.7,31.7,31.5,31.4,30.5,31.3,32.2,32.2,32.3,31.8
1970,31.9,31.8,32.1,31.2,31.2,30.6,30.2,31.5,31,33.1,32.1,32.3
1971,30.9,30.6,30.6,30.8,30,29.7,30.7,31.1,31.7,31.6,31.5,32
1972,30.6,32,31.3,31.4,30.7,30.4,30.6,31,32,32.7,32.4,32.9
1973,32.1,32.5,31.7,31.6,30.5,31.1,29.8,30.5,31.1,31.9,30.9,30.7
1974,30.5,30.9,30.9,30.4,29.9,29.5,29.3,30.4,30.6,30.4,30.6,30.9
1975,30.8,31.3,30.8,31,30.3,29.6,29.2,30.3,31.2,31.1,30.9,30.5
1976,30.2,31.4,29.9,29.8,29.8,29,29.7,30.3,30.9,31.2,30.4,30.6
1977,31.7,31.1,30.5,30.3,29.6,28.6,30.1,30.4,30.7,30.6,30.6,31
1978,31.5,31.9,31,30.1,30,29.1,29.7,29.3,30.8,30.7,30.7,31.4
1979,31.6,31.9,31,30.3,30,28.7,29.7,30.6,31.5,31.3,31,30.9
1980,31.2,32.6,30.9,30.8,30.4,29.7,29.7,30.5,30.9,30.6,31.3,31.8
1981,31.4,31,31.5,30.5,30.5,29.7,28.9,30.1,30.8,31.5,31.1,31
1982,31.1,31.9,31.7,30.8,30.1,30.6,29.5,30.4,31.2,31.9,32,30.7
1983,32.3,33.1,31.8,31,31.3,29.8,30.3,31.1,31.6,30.8,31.3,30.9
1984,30.5,29.8,31.1,30.8,30.9,29.8,29.8,30.6,30.7,31.9,30.7,31.1
1985,32.1,31.3,30.8,30.8,30.1,29.3,29.7,30,30.7,30.9,30.5,30.8
1986,30.9,31.8,30.7,30.8,30.4,29,29.5,30.8,31.4,30.6,30.8,30.3
1987,31,31,31.5,30.8,30.1,29.8,30.8,30.3,31.2,32.4,32,32.1
1988,30.7,31.2,32.4,30.9,30.7,29.3,30.3,31.9,31.3,31.9,30.8,31.2
1989,30.3,30.6,31.4,30.6,29.5,29.4,28.8,30.8,31.5,31.8,31.1,31.6
1990,31.3,31.1,31.1,30.4,30.2,29.9,29.3,31.2,31.5,31.2,31.6,30.6
1991,31.5,31.7,31.3,31.9,30.8,30.1,30.4,29.2,31.2,31.2,30.9,31.3
1992,31.3,31.6,31,30.9,31,30,28.8,30.6,30.7,31,30.6,30.7
1993,31,31.2,30.8,30.4,30,30,29.6,30.4,30.7,31.1,30.2,30.9
1994,30.6,30.8,31.4,31.1,30.4,29.4,30,30.9,30.9,31.2,30.7,30.7
1995,31.7,32,30.8,30.9,30.4,30.9,30.7,30.9,31.3,31.3,31,31.3
1996,30.9,31.4,31.2,30.1,30.5,29.1,29.9,29.9,30.4,31,31.2,30.5
1997,30.7,30.1,30.6,30.7,30,29.9,30.7,30.7,30.7,31.3,30.6,30.9
1998,31,31.9,31,31.2,30.2,29.3,30.5,31,31.7,31.4,31.1,31.7
1999,31.3,30.4,31,29.7,29.8,29.9,30.1,30.3,30.6,31.3,31.2,31.4
2000,31.3,31.3,30.6,30.4,30.4,30.2,29.5,31,31.5,32.3,31.5,31.3
2001,30.5,30.8,31,30.9,30.5,29.3,30.2,30.9,31.6,31.8,31.7,31.4
2002,31.7,31.6,30.9,30.8,30.5,30.2,30.3,30.6,32.1,31.2,30.3,31
2003,31.9,32.1,31.8,30.6,30.7,30.1,29.9,30.4,31.1,31.2,31.4,31.5
2004,31.6,31,31.1,30.6,30.2,29.2,29.7,30,31.2,32.1,32.4,31.6
2005,32.6,31.4,31.1,30.4,30.8,29.9,30,30.9,31.4,31.3,31.6,31.6
2006,31.1,31.4,31,30.2,29.2,29.3,29.6,30.5,32,31.2,31.2,31.5
2007,31.4,32.2,30.9,30.8,29.6,29.4,30.2,30.8,31.4,31.1,31.2,31.5
2008,30.9,31,31.3,30.8,29.8,29.6,30.4,31.3,31.4,31.5,31.1,31.3
2009,30.5,31.1,30.8,31.5,30.2,30,31.5,31.4,32.1,32.2,32,31.7
