1901,30.9,31.7,31.4,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1902,30.9,31.6,31.4,30.9,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1903,31,31.7,31.5,31,30.9,29.8,28.8,29.1,29.6,29.8,30,30.3
1904,30.9,31.6,31.4,30.9,30.8,29.9,28.8,29,29.6,29.8,30,30.3
1905,31,31.7,31.6,31.1,31,29.8,28.8,29.2,29.6,29.8,30,30.3
1906,30.9,31.7,31.6,31.1,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1907,30.8,31.7,31.5,31,30.9,29.9,28.8,29.2,29.6,29.8,30,30.3
1908,30.8,31.6,31.5,31,30.9,29.7,28.8,28.9,29.6,29.8,30,30.3
1909,30.9,31.7,31.5,31.1,30.9,30,28.8,29.3,29.6,29.8,30,30.3
1910,30.8,31.6,31.4,30.8,30.8,30,28.8,29.1,29.6,29.8,30,30.3
1911,30.8,31.6,31.5,31,30.9,30,28.8,29.1,29.6,29.8,30,30.3
1912,30.9,31.8,31.6,31.1,31,30.1,28.8,29.2,29.6,29.8,30,30.3
1913,30.9,31.6,31.4,30.9,30.8,29.8,28.8,29.1,29.6,29.8,30,30.3
1914,31,31.7,31.6,31.1,30.9,29.8,28.8,29.1,29.6,29.8,30,30.3
1915,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1916,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1917,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1918,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1919,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1920,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1921,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1922,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1923,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1924,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1925,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1926,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1927,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1928,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1929,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1930,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1931,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1932,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1933,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1934,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1935,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1936,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1937,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1938,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1939,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1940,30.9,31.7,31.5,31,30.9,29.9,28.8,29.1,29.6,29.8,30,30.3
1941,32.9,33.4,33.4,32.2,31.6,30.6,28.4,29.1,30.6,30.9,30,30.3
1942,32.2,33.2,33,31.7,31.3,30.9,29.7,28.9,30.3,30.4,30.1,30.3
1943,31.7,31.9,32.1,31,31,29.9,29.1,28.9,30.1,30.1,29.8,30.4
1944,31.8,32.2,31.5,31,30.9,31.1,30,28.9,30.5,30.4,29.7,30.2
1945,32.3,32.4,33.1,30.8,31,30,29.5,28.9,30.1,30.2,29.8,30.1
1946,32,32.5,32.2,30.6,31.5,30.7,29.2,28.8,30.5,30.4,29.7,30
1947,31.9,32,32.1,31.3,31.8,30.9,29.4,29.8,30.2,30.3,29.9,30.3
1948,31.3,31.9,31.9,31.8,31.5,30.1,28.8,29.1,30.5,30.3,29.8,29.9
1949,32.4,32.1,32.5,31.8,31.4,30.3,29.3,29,30.6,30.2,29.9,29.5
1950,31.4,32.1,32,31.5,30.9,30.4,28.8,28.3,29.8,29.4,29.8,29.8
1951,31.5,31.5,31.5,31.7,31.1,30.5,29.3,29.5,30,29.5,30.1,29.6
1952,32.3,31.9,32.2,31.3,31.1,29.4,29.2,28.4,29.7,29.4,29.9,29.9
1953,32.5,31.4,32.2,30.3,31.1,29.7,29,28.3,29.5,29.7,29.5,29.9
1954,31.8,30.9,31.4,30.6,30.9,30.6,28.8,29,30.3,29.7,30.2,30
1955,30.8,31.5,31.5,30.6,30.9,29.6,28.7,28.8,29.6,29.9,30.2,30.1
1956,30.6,31.7,31.2,30.8,31,30,29.2,29,30.3,30,30.6,30
1957,31.2,31.6,31.5,30.3,31.3,30,29.4,28.7,29.2,30,30.8,29.8
1958,31.7,31.5,32.3,31,31.6,29.5,29,29.7,30.5,29.6,30.7,30.1
1959,32.6,31.6,32.1,30.4,31.2,30,28.8,29.5,29.6,29.3,30.1,30.2
1960,30.3,30.8,31.1,30.4,30.8,29.6,29.1,28.9,29.9,29.3,30.1,30.1
1961,31,30.9,30.3,30.5,31.3,29.3,28.5,29.3,29.6,29.9,30.1,30.2
1962,30,31.5,31.1,31,30.8,30.7,29,29.3,30.2,30.1,30.4,30.7
1963,31.3,31.7,31.3,31,30.8,29.7,29,29.3,29.9,29.4,30.1,30.5
1964,30.9,31.2,31.2,31.1,30.9,29.5,28.7,29.1,29.6,29.4,29.6,30.1
1965,30.7,31,31.2,30.7,30.9,29.9,29.1,28.9,29.9,30.3,30.1,30.3
1966,31.3,31.9,31.6,31,31.1,29.8,28.2,28.9,29.4,29.8,30,30.4
1967,30.8,31.9,31,31.4,30.8,29.7,28.9,28.8,29.7,29.7,29.9,30.6
1968,30.6,31.2,31.1,30.8,31.4,29.7,28.3,29.2,29.6,29.6,30,30.6
1969,30.7,31.9,31.9,31.3,31.4,30.1,28.9,29.3,29.7,30.2,30,30.6
1970,31.1,31.6,31.7,31.2,31.2,29.5,28.3,28.9,29.4,30.1,30,30.3
1971,30.5,31.4,31,30.4,30.8,30,28.7,28.8,29.1,29.4,29.6,30.1
1972,31.2,31.7,31.5,30.4,30.9,29.7,29.2,28.7,29.2,29.7,29.8,30
1973,31,32,31.7,30.8,30.4,29.9,28.4,28.9,29.2,29.5,30.1,29.7
1974,30.6,30.5,30.8,30.7,30.2,29,28.3,28.8,29,29.4,29.3,29.4
1975,29.9,31.1,31.2,30.6,30.4,29.2,28.3,28.5,28.9,29.3,29.6,29.1
1976,30.3,31.3,30.8,30.5,30.5,29.2,28.3,28.4,29.4,29.4,29.9,30.1
1977,30.7,32,31.8,31.1,31,29.5,28.6,29.5,29.8,30.1,30.1,30.4
1978,30.8,31.7,31.9,30.7,30.7,29.5,28.6,28.8,29.9,29.9,29.9,30.5
1979,31.5,31.6,31.5,31.1,30.9,30,28.9,29.3,29.7,30.1,30.2,30.3
1980,31,31.5,31.1,31.4,31.1,29.5,28.5,29.4,29.9,29.8,30,30.2
1981,30.8,32.1,31.8,31.7,30.9,29.9,28.7,29.2,29.7,29.8,30.1,30.7
1982,31.5,32.6,32.5,31.7,30.4,29.9,28.8,29.1,29.7,29.7,30.5,30.6
1983,30.4,32.8,32.9,31.5,31,30.2,28.9,29.1,29.9,30,30,30.3
1984,30.8,32.1,31.6,30.7,30.9,29.7,28.4,29.1,29.5,29.7,30,30.3
1985,31.5,31.6,31.7,30.6,31,29.8,28.5,29,29.4,29.6,30,30.3
1986,31.4,32,30.8,31.1,31.1,30,28.9,29.6,29.6,29.8,30,30.2
1987,31.4,31.4,32.2,31.7,31.6,30.6,29.6,29.7,30.2,30.3,30.3,30.9
1988,31.2,32.5,32.2,31,31.4,30.3,29.2,29.4,29.5,29.9,30.1,30.2
1989,29.4,31.4,31.4,31.1,30.8,29.4,29.1,28.7,29,29.6,30.3,30.3
1990,31.3,32.2,32.4,31.6,31.2,29.8,29.2,29.1,29.6,29.9,30.2,30.6
1991,30.6,31.8,32.1,31.4,31,30.5,29,28.8,30,30.1,30.8,30.4
1992,30.9,32,32.1,31.7,30.2,29.8,28.8,29.7,29.3,29.5,30.5,30.3
1993,29.8,30.1,32.1,30.8,30.9,29.6,29.5,29.7,29,29.2,30.9,31
1994,30.4,31.7,31.6,31.6,31,29.9,28.2,28.7,29.3,29.7,29.9,30.1
1995,30.9,31.6,31.8,30.7,31,30.3,29.2,29.6,29.8,31,31.4,31.1
1996,30.8,31.3,31.4,30.8,30.7,30,29.1,29.2,29.4,30.6,30.4,30.5
1997,31.6,31.4,32.5,31.6,31.8,30.5,29.8,30,31.3,31,31.9,31.2
1998,31.7,32.4,32.3,31.7,32,30.6,29.5,29.1,29.5,29.2,31.6,30.4
1999,30.6,31.6,31.8,31.1,30.1,29.9,28.6,28.2,29.4,29.5,30.3,30.4
2000,31.6,30.7,31.7,30.9,31.6,30,28.6,29.3,29.8,29.7,30.3,30.8
2001,31,33.7,31.2,31.5,30.9,30.7,29.5,28.7,30.4,29.6,30,31
2002,30.5,32.2,32,31.3,32.1,31,30,29.9,30.3,29.7,30.1,30.9
2003,31.1,32.2,31.6,31.6,32.2,30,29.2,29.9,29.7,30,30.4,32.2
2004,31.5,31.5,31.9,31.7,31.3,30,29.4,29.4,29.5,30.3,30.9,30.6
2005,30.6,33.3,32.3,31.8,30.8,30.9,29.8,30.1,30.2,30,30.5,32.4
2006,31.8,32.3,31.9,32.5,31,29.9,29.5,29.1,29.6,31.2,30.2,30.7
2007,31,32.6,32,31.3,31.5,30.1,29.2,29.8,29.7,29.7,31.2,31
2008,31.7,31.4,32.6,30.4,31,29.8,29.2,29.3,29.9,30.1,30.4,30.5
2009,31.1,32.1,32,31.6,32.4,30.3,29.3,29.7,30.1,30.9,31.2,31.9
