1901,31,31.5,32,31.9,32.2,31.8,31.6,31.7,31.6,31.8,31.4,30.7
1902,30.9,31.5,32,31.9,32.2,31.9,31.6,31.7,31.6,31.8,31.4,30.8
1903,31.1,31.4,32.1,32,32.3,31.7,31.6,31.7,31.6,31.8,31.3,30.4
1904,30.8,31.3,32,31.8,32.2,31.8,31.6,31.7,31.6,31.8,31.3,30.6
1905,31.1,31.6,32.1,32,32.2,31.8,31.6,31.8,31.6,31.9,31.5,31
1906,31.2,31.6,32.1,32.1,32.3,31.9,31.7,31.8,31.7,31.8,31.3,30.7
1907,31,31.5,31.9,31.9,32.2,31.8,31.6,31.7,31.6,31.8,31.4,30.5
1908,31,31.5,32,31.9,32.2,31.8,31.6,31.7,31.6,31.8,31.3,30.7
1909,31,31.5,32,31.9,32.2,31.8,31.6,31.7,31.6,31.8,31.3,30.6
1910,31,31.4,31.9,31.9,32.2,31.8,31.6,31.7,31.6,31.8,31.4,30.6
1911,31.2,32.3,32.5,32.4,32.5,32.5,32.6,32.1,32.2,32.2,32.5,31.6
1912,32.3,32.5,33.2,32.6,32.6,32,32.1,32.1,32.2,32.3,32.1,31.5
1913,31.7,32.4,33.1,32.1,32.6,31.8,32.1,32.3,32.2,32.5,32.2,31.7
1914,31.7,32.6,32.7,32.4,33.3,31.9,32.3,32.6,32.6,32.7,32.7,32.1
1915,31.9,32.4,32.6,32.6,32.9,32.5,31.9,32.7,32.2,32.5,32.5,31.5
1916,31.5,32.4,32.5,32.6,32.4,32.1,31.4,31.9,32.3,32.5,32.3,31.4
1917,31.1,31.4,32.1,32.3,31.6,31.9,31.9,31.7,31.9,32.2,32.3,31.1
1918,30.1,30.4,32.3,31.8,32,31.4,32.1,32.3,32.1,32,32.3,30.8
1919,32,32.6,33,32.7,33,32.6,31.9,32.6,32.3,32.4,32.1,31.2
1920,31.6,32.1,32.8,32.5,32.7,32.6,32.3,31.9,32.3,32.4,32.6,30.7
1921,31.6,31.7,32.5,32.4,32.1,31.8,32,32.3,32.3,32,31.9,31.6
1922,32.1,32,32.1,31.7,32,31.8,31.9,31.7,32.2,32.2,32.6,31.8
1923,31.4,32.1,32.4,32.6,32.4,32.2,31.7,31.7,31.5,32.2,32.1,31.4
1924,31.5,31.8,31.8,32.3,32.1,31.7,32.1,32.6,31.6,31.6,31.3,30.8
1925,31.5,31.1,31.8,32.3,33,32.8,32.1,32.8,32.6,32.1,32.3,31.3
1926,31.4,32.8,33.4,33.2,32.9,32.5,32.5,32.6,32.3,32.4,32.4,31.5
1927,31.3,32,32.8,32.1,32.7,32.3,32,32.6,32.4,32.1,32.1,31.7
1928,31.9,31.5,32.4,32.3,32.9,32.5,32.5,32.4,32.6,32.4,32,31.5
1929,31.7,31.3,31.7,32.7,32.7,31.8,32.5,32.6,32.2,32.3,31.7,31.4
1930,31.8,32.3,32.1,32.8,32.3,32.3,33,33.5,32.5,32.3,32.1,31.7
1931,31.9,33.2,33.3,32.7,33.1,32.5,32.3,33.2,32.3,32.4,32.1,30.7
1932,31.2,32.3,32,32,32.3,31.8,32.2,32.3,32.1,32.4,31.6,31.6
1933,31.3,32.1,32,32,32.7,32.4,32.1,32.4,32,31.8,31.5,31
1934,30.3,31.1,31.4,31.7,32.5,31.8,32.2,32.3,32.5,32,32,31.8
1935,32.1,32.4,32.9,32.3,32.1,31.6,32.1,32.1,32.3,32.4,32.2,31.7
1936,31.7,32.9,32.3,32.5,32.6,31.8,32,32.2,32.1,32.1,32,31.9
1937,32.1,32.2,32.9,32.2,32.2,32.4,32.4,32.9,32.3,32,32.1,31.3
1938,31.8,32.8,32,32.1,32.1,32.6,32.3,31.8,32.1,32.5,32.1,31.6
1939,31.8,31.8,32.7,32.2,32.7,31.9,32.3,32.3,31.7,31.6,32.3,30.9
1940,31.8,32.1,33.2,32.5,32.5,32.4,32.3,31.7,31.9,32.7,32.4,31.9
1941,32.3,32.8,33.1,32.8,32.9,33.2,32.9,32.4,32.7,32.9,32.1,31.6
1942,31.1,31.5,32,31.8,32.2,31.8,31.5,31.7,31.6,31.8,31.5,30.7
1943,30.9,31.7,32,31.9,32.3,32,31.8,32,31.8,31.8,31.4,30.6
1944,31.1,31.6,32.1,32,32.3,32,31.6,31.7,31.6,31.8,31.5,30.5
1945,31,31.6,31.9,31.9,32.3,31.8,31.6,31.7,31.7,31.7,31.6,30.8
1946,30.9,31.2,31.7,31.6,31.9,31.6,31.6,31.6,31.4,31.7,31.3,30.9
1947,31.2,31.5,31.6,31.4,32,31.4,31.4,31.4,31.6,31.6,31.3,30.3
1948,31.1,31.5,32.3,32.9,32.7,32.6,32,32.5,32.4,32.7,31.7,32
1949,32.2,32.1,33,32.1,32.1,31.8,31.8,32.4,32.2,31.9,31.8,31.3
1950,31.9,32.3,32.2,31.7,32.2,32.1,32,31.9,31.9,31.7,32,31.2
1951,29.6,29.8,30.9,31.5,31.8,31.9,31.5,31.7,31.6,31.4,31.2,30.5
1952,30,30.2,31.3,31.3,31.3,31.8,31.4,30.7,31.6,32.1,30.5,30.4
1953,30.2,29.8,30.7,30.6,31,31.9,31.3,32.2,31.5,31.7,31.7,30.3
1954,29.9,30.7,30.8,31,31.5,31.5,31.3,31.6,31.6,31.1,30.5,29.9
1955,29.7,31,31.7,30.9,32.6,31.5,31.3,30.7,31.3,31.3,31.1,30.3
1956,29.7,30.3,31.1,31.3,31.7,31.9,31.1,31,31.4,31.2,30.4,29.9
1957,30.8,31.3,31.4,31.4,31.4,32,31.3,31.2,31.3,31.3,31.3,29.5
1958,31.5,31.1,31.6,32.2,31.7,32.1,32.3,31.4,31.6,31.9,30.7,31.1
1959,31.1,31.7,31.9,31.1,31.9,31.3,31.1,31.1,31.2,31.5,30.9,30.8
1960,30.6,30.7,31.8,31,32.2,31.5,31.2,31.9,31.4,32,30.9,30.1
1961,30.6,31.2,31.4,31.2,32.1,31.3,31.6,31.5,31.6,31.5,30.8,30.3
1962,30,31.2,30.8,31.1,32,31.4,31.7,30.8,31.2,31.3,31,30.4
1963,30,30.7,32.4,32.7,32.1,31.7,31.5,31.8,31.6,31.1,31.2,30.2
1964,31.1,30.4,31.5,31.3,31.8,31.5,30.6,31.2,31,30.9,30.8,29.8
1965,30.7,31.2,31.5,30.9,31.4,31.4,31.1,31.3,31.1,31.5,31.5,30.6
1966,30.4,31.4,31.6,31.5,32,31.1,31.1,31.4,31.7,31.4,31.2,30.2
1967,30,30.2,31.7,31,31.3,31.1,31,31.4,31.3,31.4,30.1,29.5
1968,30.5,32,31.2,31.5,32,32,31.6,31.5,31.4,31.1,31.4,30.3
1969,31,31.6,32.1,32,32.1,31.4,31.4,31.1,31.5,31.5,30.8,30.1
1970,31.1,31.9,32,32,31.9,31.5,31.3,31.6,31,31.4,31.1,30.2
1971,29.7,30.2,31.1,31.4,32.3,31,30.9,30.5,31.3,32,30.8,29.6
1972,30.8,31.1,31.8,31.2,32,31.3,32,32,31.5,32.1,31.3,30.1
1973,31.5,32,31.9,31.4,31.7,31.4,31.9,30.8,31.2,31.3,31.4,29.9
1974,30.5,30.3,31.8,31.3,31.4,31.2,31.1,31.9,31.2,31.9,31.3,30.5
1975,31,30.8,31.2,31.4,31.8,31.2,30.8,31.4,31.5,31.8,30.6,30.1
1976,30.9,31.9,31.8,30.8,31.9,31.7,31.4,31.7,31.6,31.6,31.1,30.9
1977,31.6,30.9,32.3,32.9,32.4,31.9,31.5,31.4,31.8,32.2,31.4,32.4
1978,31.4,32.4,32.3,32.3,32.4,32.3,31.7,31.6,31.6,31.9,31.3,30.9
1979,31.9,32.1,32.7,31.8,33.1,31.8,31.3,31.9,31.9,32.1,31.1,31.8
1980,31.8,32.3,32.1,31.6,32.2,32.1,31.9,31.2,32,32.2,31.3,30.7
1981,31.1,31.6,32.7,31.5,32,32.4,31.8,32.8,31.5,32,31.8,31
1982,31.6,32.1,32.1,31.4,32.1,31.8,31.7,31.7,32,31.6,31.5,31.1
1983,31.8,33.4,33.8,33.4,32.9,32.5,31.8,32.2,31.9,32.5,31.5,30.1
1984,30.1,30.1,31.2,32,32,31.8,31.6,31.8,31.7,32.4,31.7,30.5
1985,32.1,31.7,31.6,32.1,32.6,32.7,31.8,32,31.8,31.8,31.4,31.4
1986,30.4,31.8,31.2,32,32.4,32,32.6,32.7,32,32,31.9,31.7
1987,30.7,32.6,32.9,32.7,32.3,32.4,32.6,32.1,32.2,32.7,32.4,31.1
1988,31.9,32,32.1,32.2,33,32.4,31.9,31.5,31.7,32.4,31.4,31.3
1989,31.4,31.7,31.3,31.5,32.2,32.6,31.9,32,31.4,31.8,32.1,31.1
1990,31.5,32.5,33.3,32.6,32.8,32.2,31.7,32.4,32.1,32.4,31.9,31.3
1991,31.9,32.4,32.9,32.5,32.5,33.1,32.9,32.8,32.3,32.4,31.4,30.1
1992,31.8,32.5,33.1,33.2,32.6,32.1,31.8,32.5,32.4,32.2,31.3,30.5
1993,31.4,31.9,31.8,32,32.6,32.4,32.1,32.8,32.5,32.2,31.9,31.1
1994,31.8,32.3,31.6,32.3,32.1,32.3,32.7,32.4,31.9,32.1,31.7,31.2
1995,31.2,30.9,32.3,32.1,32.9,32.7,32,31.3,32.8,33.2,32.1,29.7
1996,30.8,31.1,32.5,32.1,33,32.4,32.5,32,32.5,32.1,32.1,30.7
1997,31.5,32.1,32.6,31.9,33.1,33.1,32.6,32.5,32.6,32.4,31.8,31
1998,32,33.8,33.1,32.8,34.5,32.9,32.9,32.2,32.4,33.4,32.4,31.1
1999,30.8,31.8,31.8,32.8,32.5,32.1,32.1,31.9,32.4,32.1,32,31.2
2000,30.7,31.4,31.8,32,33,31.9,32.7,32,32.3,32.8,32,31.3
2001,30.9,31.2,32.4,32,32.9,32.6,33,32.1,32.7,32.8,32.1,31.4
2002,31.9,33.2,33.2,32.7,33.3,33.2,32.9,32.8,32.3,33.3,32.1,32
2003,31.3,31.9,32.9,32.1,33.1,33.1,32.2,32.7,32.4,32.7,32.2,31.3
2004,32.5,32.5,32.5,32.8,33.4,33.1,32.1,32.8,32.4,32.4,32.3,31.3
2005,31.8,33.5,33.1,32.7,32.7,33.2,32.3,32.6,32.5,32.1,31.8,30.9
2006,30.8,32.1,32.7,32,32.7,32.4,32.5,32.4,32.4,32.7,32.1,31
2007,30.5,32,31.9,32.1,33,32.7,32.1,32.2,32.6,31.8,31.8,30.6
2008,31.4,31.5,30.9,32,33,32.1,31.9,32.1,32.5,32.5,32.1,31.2
2009,31.4,31.8,31.5,32.4,33.6,33.2,32.3,32.3,32.6,32.7,31.3,30.8
