1901,29.9,31.9,31.2,31.3,30.4,28.9,27.5,27,28,29.7,31,30.3
1902,29.1,31.6,31.6,32,30.8,28.6,27.5,26.7,28,29.4,31,30.6
1903,31,32.1,31.8,31.8,30.7,28.6,27.6,27.1,28.3,30.1,31,30
1904,31.2,32.1,32,31.7,30.7,28.3,27.5,26.5,27.5,29.7,30.4,30.2
1905,30.2,30.1,31.4,31.4,30.7,28.5,27.5,26.7,28.2,29.7,31.5,31.3
1906,31.7,31.7,31.9,33.1,31.3,29.7,27.8,26.8,28.5,29.8,30.7,30.5
1907,30.2,30.7,31.9,31.7,31.4,29.2,27.8,27,28.1,30.7,31.4,30
1908,29.9,30.9,31.5,31.7,31.4,30,28.3,26.7,28.1,29.6,30.7,31
1909,31.7,32.5,33.9,31.7,30.9,28.3,27.5,26,28,29.2,31.8,31
1910,32.4,32.6,31.7,31.7,31.5,29.9,27.9,27,28.2,29.5,31,30.6
1911,30.7,32,32.1,31.7,30.6,28.3,27.4,26.7,27.8,29.7,31.1,30
1912,29.5,31.2,31.2,31.9,30.8,29.1,27.8,27.4,28.5,29.5,30.1,30.5
1913,29.5,31.2,30.9,31.5,31.3,30,28.3,28,28.5,29.6,30.6,30.3
1914,32.2,31.8,31.4,31.5,31.6,29.2,28.5,27.3,28.1,29.8,31.5,30.4
1915,30.6,31.8,32.1,31.4,30.7,28.6,27.5,27,27.4,28.9,30.4,29.6
1916,31.3,32.3,31.8,31,30.3,28.7,27.4,26.7,27.7,29.2,30.5,31.2
1917,30.8,32.1,31.6,31.4,30.8,29.1,27.5,27,28.1,29.7,30.6,31
1918,32,30.3,31.2,31.4,30,28.9,27.5,27,28.1,29.5,30.6,30.6
1919,31,32,32.3,31.7,30.7,29.4,28.1,27,28.2,30.1,30.3,30.6
1920,31.5,32.3,32.5,31.7,30.7,28.9,27.9,27,28,29.7,31.1,30.4
1921,30,32.1,32.2,32.1,31,29.4,27.8,27.2,28.3,29.7,31,31.3
1922,31.3,31.8,31.4,31.6,30.5,28.8,27.3,26.9,27.6,30.1,31.4,30.8
1923,31.8,31.8,31.1,30.6,30.4,28.9,28,26.7,27.9,29.5,30.5,31.5
1924,30.3,31.7,32.2,31.1,30.5,29.3,27,27.4,29.4,29.3,30.9,30.9
1925,31,31.5,32,31.8,30,28.1,27.5,26.4,27.4,29.2,29.8,29.8
1926,30.6,33.7,32.8,31.9,30.3,28.8,27.4,27.7,28.8,31.2,31.3,31
1927,32.3,33,30.9,31.7,30.7,28.6,27,26.4,28.1,29.2,31.3,30.8
1928,32.2,31.4,31.5,30.5,29.3,29.3,28.1,26.8,27.7,29.1,30.7,30.3
1929,32.4,32,31.3,30.2,30.1,29.3,28.2,27.3,28.6,29.1,30.2,29.3
1930,31.7,33.5,32.7,31.5,30.1,29.1,28.1,27.3,28.5,28.9,32.2,32.3
1931,30.7,32.5,31.7,31.9,31,29.6,28.4,27.8,28.1,30.2,32,32.2
1932,32.9,33.3,32.1,32.5,31.1,28.6,27.4,28.4,28,30.7,32.8,32.5
1933,32.9,34.2,32.8,32.1,30,29.2,28.2,26.9,28.4,29.5,32.3,31
1934,32.8,32.9,31.9,31.6,30.6,28.3,27.5,27.7,28.9,30.5,31.6,31.5
1935,33,33.5,33.5,32.3,30.8,28.6,27.6,26.6,28,29.3,31.1,30.6
1936,31.1,31.4,32.5,30.9,29.8,28.6,27.3,27,27.8,29.8,30.8,30.1
1937,32.9,33.2,33.2,32.6,31.4,29.4,28.1,27.8,28.7,30.5,31.9,32.5
1938,31.6,33.8,32.5,32.5,31.6,29.9,27.9,27.2,28.5,30.7,31.9,31.8
1939,31.8,32.5,32.1,32.6,31.4,29.2,28.6,27.6,28,30.1,31.8,31.3
1940,30.8,32.1,32.6,32.1,31.1,29.1,27.6,27.1,28,29.7,30.8,31.1
1941,31.4,33.6,33.6,32.4,30.9,29.8,28.2,28.1,29.7,31.1,31,31.1
1942,31.4,33.3,33.3,32.2,30.7,29.2,27.7,27.2,29.5,29.9,31,31
1943,31.5,33,31.6,31.7,29.5,28.4,27.2,26.8,28.3,30,30.5,31.2
1944,30.6,32.3,31.8,31.9,32.2,29.4,28,27.6,29,30.7,31.7,31.2
1945,31.4,32.9,32.3,32,31.2,29.2,27.5,27.5,29,29.6,31.2,31.2
1946,31.5,32.9,32.7,32.3,30.7,28.1,27.4,26.6,28.2,28.8,31,30.7
1947,31.4,32.5,32.2,31.3,31,29.4,27.7,27.6,28.4,29.8,30.5,30.4
1948,31.7,32,32.7,31.2,30,28,27.5,27.2,28.2,30.1,30.4,30.6
1949,31.6,32.9,32.3,31.6,30.6,29.3,28.1,27.2,28.7,30.3,30.7,30.8
1950,31.4,32.9,32.4,31.3,30.7,28.8,27.6,26.9,28,29.3,30.5,30.1
1951,30.6,32,31.4,32.4,30.7,29.2,27.4,27.2,28.1,28.7,30,30.8
1952,31.2,31.8,31.4,32,30.5,28.9,26.8,26.6,27.4,28.9,29.9,30.2
1953,29.8,30.9,30.9,32.3,30.5,28.7,27.1,26.8,27.8,29.1,30.8,30.9
1954,30,31,31.1,31.1,30.7,28.2,26.1,26.6,27.5,29,30.7,30.3
1955,29.8,31.1,30.6,31.2,30.5,28.5,26.4,26.4,27.4,28.8,30.7,29.8
1956,30.4,31.2,30.5,31.4,30.2,28.3,26.1,26.1,28.3,29.3,30.4,30.4
1957,30,31.9,31.9,31.6,30.4,28.7,27.1,27,27.5,28.7,30.2,30.5
1958,31.3,31.7,32,31.3,30,28.1,26.3,26.4,27.5,29.4,30.2,30.3
1959,31.2,31.9,32.2,31.9,30.1,28.9,27.5,26.7,27.9,30.1,30.7,30.5
1960,30.7,32.1,31.4,30.8,30.5,28.8,27.7,27,28.1,29.3,30.9,30.2
1961,30.8,32,32,31.4,30.9,28.6,26.6,26.4,27.4,29.7,30.4,30.1
1962,30.7,31.7,31,31.5,30.4,27.9,27.6,26.9,27.5,29.3,30.3,30.8
1963,30.9,31.8,32.3,31.4,30.8,29.6,28,27.8,28.7,29.8,31.5,31.1
1964,31.2,32.7,32.3,31.8,30.3,28.2,27.2,26.9,27.6,28.3,30.1,29.6
1965,30.9,31.4,32.1,31,30.4,28.7,26.7,26.7,28,29.5,31.1,30.4
1966,30.8,32.5,32.2,31.6,31.1,29.6,28.3,27.2,27.7,30.5,31.3,31.1
1967,31.1,32.4,31.6,31.7,30.8,28.7,27.1,27.2,27.6,29.5,30.6,30.5
1968,30.3,31.3,31.5,31.4,30.6,28.8,27.7,28.3,28.2,30.5,30.4,30.5
1969,30.7,32.5,32,32.6,31.3,28.9,27.2,27.2,27.7,29.1,30.5,30.6
1970,30.7,32.2,31.8,32,30.7,29.2,27.2,26.6,28,30.2,30.8,30.5
1971,30.2,31.3,31.2,31.8,31.1,28.8,27.7,26.1,27.6,29.7,30.8,30
1972,30.3,31.5,31.5,31.3,30.4,29,27.5,26.3,28.2,30,31.2,30.6
1973,31.2,32.8,32.3,32.3,31.6,29.2,28.1,27.3,28,30,32,30.6
1974,30.9,31.9,32,31.7,30.2,28.7,27.9,27.4,27.4,29.4,30.9,29.9
1975,30.8,31.5,31.7,31.3,30.4,29,27.7,26.2,27.3,29.5,30.7,30.4
1976,30.9,31.2,31.6,31.1,30.1,27.6,26.5,26.2,27.4,28.3,29.9,30.2
1977,30.5,31.7,31.9,31.3,30.8,28.2,28,26.2,28,29.8,31.3,30.3
1978,30.9,31.9,31.2,30.8,29.9,28.1,27.1,26.5,27.9,29.1,30.7,30.4
1979,31.2,32,31.9,31.6,30.7,28.3,27.4,27,28.5,29.6,30.8,30.5
1980,30.9,32.1,31.9,32.1,29.8,28.8,27.1,27,28.3,29.6,30.6,30.4
1981,31.1,32,32.1,31.7,30.1,29.1,26.9,27.1,28.1,30.2,31.6,31
1982,31.4,32.4,32.1,31.7,30,28.2,26.9,26.3,28.1,29.6,30.7,30.9
1983,30.8,32.6,33.1,32.3,31,28.2,27.5,27,28.4,30.3,31.1,30.9
1984,31.5,32.5,32.6,31.6,30.9,30.1,27.7,28.3,28.1,29.9,31.1,30.6
1985,31.1,32.2,31.9,31.6,30.5,28.6,27.5,27.7,27.9,30.2,31.3,30.6
1986,31.1,32.4,31.5,32.5,31.4,28.8,27.1,26.8,28,29.5,30.8,30.7
1987,31.6,31.9,32.3,33.3,31.5,29.5,28.7,28,28.7,30.2,32.6,31.2
1988,32,33.4,32.9,32.8,31.8,29.6,28.3,27.6,28.3,30.5,31.6,30.5
1989,30.9,33.3,32.2,32.1,31.4,29.7,28.2,27.6,28.2,29.9,32.2,31.5
1990,31.2,33.1,33.1,32.2,31.2,29.6,27.6,26.8,28.5,30.5,31.2,31.2
1991,31.4,32.3,32.5,31,30.6,29.9,28,26.7,28.1,28.9,30.7,30.4
1992,30.7,32.7,32.3,31.6,31.1,28.8,27.4,26.6,28,30.1,30.8,30.9
1993,30.8,32,31.7,32,31.6,29,27.7,26.8,28.6,30.7,31.5,31.5
1994,30.4,32.7,32.2,31.7,30.6,29.1,27.4,26.7,28.1,29.8,31.6,31.2
1995,32,33.3,32.3,32.6,31.5,29.8,28.3,27.6,28.7,30.4,32.2,31.2
1996,31,32.4,32.5,32.1,31.4,29.4,28.3,27.3,28.1,30,31.8,31.3
1997,31.7,32.7,31.6,31.3,30.5,28.5,27.8,27,29.2,30.7,31.5,31.2
1998,31.2,33.6,33.3,33,31.7,30.3,28.2,27.1,28.5,30.2,32,32.1
1999,30.7,32.6,32.8,32.3,31.4,30.2,28.1,27.4,28,29.5,31.2,31.5
2000,31.6,32.2,32.5,31.6,32,29.4,27.8,27.8,28.8,30.2,32.2,31.7
2001,31.5,32.5,32.6,32.3,30.8,29,27.7,27,28.1,30.6,32,31.3
2002,31.8,32.2,32.4,31.9,31.7,29.5,27.9,27.1,28,29.8,31.3,31.4
2003,30.8,32.4,32.5,31.7,31.6,29.1,27.9,27.7,28.5,30.5,31.9,31.6
2004,31.5,32.1,33,31.6,30.5,29,27.8,26.8,28.3,30.2,31.6,31.6
2005,31.4,32.9,31.9,32.2,30.7,28.9,27.4,27,28.6,30.5,31.9,31.7
2006,29.2,32.4,32.4,33,30.7,30.6,28.2,27.3,28.5,30.7,30.9,31.1
2007,29.9,33.7,32.4,31.6,31.5,28.9,28.3,27.7,28.7,30.2,31.5,32
2008,30.4,32.3,32.3,32,31,29.4,28.1,27.7,28.6,30.1,31.1,31.1
2009,31.8,32.6,32.2,31.7,31.7,29.8,27.8,27.1,28.5,29.6,32,31
