1901,31,31.7,31.8,31.9,32,31.3,30.9,31.7,32.2,32.3,31.7,31.4
1902,31,31.7,31.5,31.6,31.6,31.2,31,31.7,32.1,32.2,31.6,31.4
1903,31.2,31.5,31.5,31.7,32,31.7,31.1,31.6,32.1,32.3,31.7,31.3
1904,31,31.2,31.4,31.3,31.7,31.3,30.9,31.3,31.9,32.1,31.8,31.4
1905,31,31.3,31.5,31.8,31.6,31.4,31,31.7,32.1,32.2,32,31.4
1906,30.9,31.3,31.6,31.6,31.8,31.2,31,31.7,32.1,32.3,31.9,31
1907,30.5,30.9,31.2,31.4,31.5,31.3,31.1,31.6,32.1,32.2,31.8,31.4
1908,31,31.3,31.5,31.5,31.8,31.4,31.2,31.9,32.2,32.3,31.7,31.2
1909,30.8,31.1,31.9,31.4,31.7,31.1,31,31.4,32.2,32.3,31.4,31
1910,30.6,30.9,31.4,31.3,31.4,31.2,31,31.5,32.5,32.1,31.8,31.5
1911,30.7,31.1,31.2,31.5,31.4,31.4,31,31.8,32.2,32.3,32,31.4
1912,31.1,31.6,31.9,31.5,31.8,31.3,31.2,31.7,32.2,32.2,31.8,31.4
1913,30.8,31,31.2,31.1,32,30.9,30.7,31.3,32,32.6,31.5,31
1914,30.8,31.2,31.5,31.3,31.5,31,30.9,31.4,32.1,32.2,31.8,31.6
1915,31,31.2,31.9,31.3,32.6,32.2,32.1,32.8,32.9,33.5,32.4,31.9
1916,31.1,31.2,31.5,32.2,32.4,31.9,31.5,31.7,32.6,32.2,31.7,30.9
1917,30.3,30.4,31.2,31.5,31.8,31.1,31.2,31.5,32.1,32.6,31.8,31.2
1918,30.7,31,30.7,31.1,30.9,30.9,31.2,32.1,32.6,32.6,31.6,31.2
1919,30.9,31.4,31.5,31.3,31.9,31.3,30.8,31.6,32,32.1,31.6,31.2
1920,30.8,31.4,31.6,31.6,31.9,31.2,30.9,31.5,32,32.1,31.6,31.2
1921,31.1,31.3,31,30.9,31.4,31.1,30.7,31.3,32.1,31.7,31.5,31.1
1922,30.7,30.8,30.8,31.8,31.2,30.6,30.6,31.4,32,32,31.2,30.5
1923,30,30.4,30.8,31.3,31.7,30.9,30.9,31.4,32.5,32.2,31.9,31.1
1924,30.8,31.4,32.4,32.2,32.1,30.8,30.5,31.9,31.7,31.9,31.6,30.9
1925,30.1,30.5,30.7,31.6,31.8,31.3,30.7,31.4,31.9,32.6,31.8,31.6
1926,31.2,32,32,32.5,32.6,32,31,31.6,31.8,32.3,31.7,30.9
1927,30.6,30.5,31.3,30.7,31,30.7,30.2,31.5,31.8,32.2,31.9,31
1928,30.6,31.2,31.4,31.4,31.7,31,30.9,31.4,32,32.3,31.7,31
1929,30.5,31.3,31.5,31.1,31,31,30.9,31.5,32.1,32.6,31.6,31
1930,30.6,31.1,31.8,31.6,31.7,31.1,31,31.6,32.1,32.2,32.1,31.6
1931,31.3,31.7,32.6,32.2,32.5,31.8,31.2,31.8,32.2,32.6,31.9,31.3
1932,30.9,31.2,31.7,32.2,31.6,31.4,31,31.8,32.5,32.3,32,31.5
1933,31.4,31.1,31.6,32.1,32.6,31.9,31.9,32.3,32.6,32.9,32.1,31.5
1934,30.8,30.5,31,32.3,32.9,31.7,31.6,32.6,33.1,33.2,32.6,32
1935,31.3,31.6,31.5,31.7,31.9,32.2,31.7,31.9,32.9,32.9,32.2,31.4
1936,31.1,30.9,32,31.9,32.5,31.9,31.9,32.6,32.9,33,32.7,31.5
1937,30.7,31.2,32.3,32.4,32.1,31.8,31.5,32.3,32.8,32.9,32.6,32.1
1938,31.5,31.6,31.3,31,31.2,31.1,31.2,32,32.7,33,32.1,31.9
1939,30.9,30.6,31,31.1,31.8,31.4,31.4,32.4,33.1,33.3,32.4,32.3
1940,31.7,32.6,32.7,32.6,33.2,32.4,32.1,32.7,33.6,33.4,32.5,32.3
1941,32.3,33.1,33.6,33,32.2,31.8,31.8,32.1,33.1,33.5,32.9,32.4
1942,32.5,32.1,33.5,33.3,32,32.2,32.1,33,33.4,33.4,32.9,32.3
1943,32.1,31.9,32,32.2,31.3,31.8,31.6,32.9,33.6,33.6,33.1,32.8
1944,32.6,32.2,32.5,32.4,32.6,32.2,32.6,33.4,33.8,33.8,32.9,32.3
1945,30.1,30.2,31.1,30.5,30.5,30.4,30.8,31.6,31.8,32.4,31.5,32.1
1946,31,31.9,32.1,30.8,30.9,30.9,30.9,31.3,32.1,32.8,31.9,32.4
1947,31.4,32.8,32.8,32.2,32.6,32,31.2,32.1,32.7,32.6,32.7,32.3
1948,31.4,31.6,31.9,31.2,31.8,31.5,31,31.7,32.8,33,32.6,32.3
1949,30.9,31.2,31.6,32.2,32.8,32.2,31.4,32.4,32.7,32.9,32.8,32
1950,30.5,31.6,31.9,31.3,31.2,30.9,30.6,31.6,32.3,32.2,31.9,31.6
1951,30.2,30.6,30.8,32.1,31.9,31.7,31.3,32.3,33.1,33.4,32.5,32.1
1952,31.2,31.9,32.4,32,32.5,32.2,32.2,32.6,33.4,33.8,32.8,32.9
1953,31.9,31.9,32.3,33.3,32.1,32.8,31.7,32.3,33.6,34.1,33.9,32.7
1954,31.7,32.6,33.4,31.8,32.5,32.1,31.4,31.7,33.1,32.4,32.4,31.5
1955,31.9,31.4,31,32.1,32.5,32.3,31.2,32.2,32.9,33.2,33.4,31.9
1956,30.4,30.9,31.1,31.4,32.2,31.8,31.3,31.9,33,32.8,32.2,30.9
1957,30.5,31.3,32.7,32.3,32.4,32.4,31.9,32.2,33.4,33.2,32.7,32.8
1958,32.6,33.8,35.6,32.5,32.1,31.9,31.6,32,32.9,33.3,33,32.2
1959,31.4,31.8,32.6,32.5,30.9,31.5,31.8,32,32.5,32.4,31.8,32.4
1960,31.6,32.3,32.2,31.7,31.4,31.2,31.1,31,32.1,32.9,32.3,30.1
1961,31,31.2,31.6,32.7,33.6,32.2,30.3,31.3,32.1,32,30.8,31.2
1962,30.9,30.8,31.5,32.5,31.3,30.9,31,32.1,32.9,32.7,32.4,32
1963,30.9,31.4,31.6,30.8,29.9,31.2,31.2,32.3,32.4,33.1,31.9,31.9
1964,31.3,32.5,32.6,31.7,32.9,31.4,30.6,31.8,32.3,32.4,31.9,30.7
1965,30.4,30.8,32.4,32,31.8,30.6,31.2,31.5,33,33.2,32,32
1966,32.3,32.2,32.4,32.8,32.5,31.2,30.9,31.8,32,32.5,30.9,30.3
1967,30.2,31.3,30.7,30.7,31.8,31.9,31.2,32.6,32.9,33.2,32.5,31.8
1968,31.2,31.7,31.8,31.2,31.1,31.2,31.8,32.4,32.8,33.4,32.7,32.1
1969,31.1,31.1,32.8,31.9,32.2,32.1,31.5,32.2,33.7,32.3,32.1,31.8
1970,31.2,32.1,32.1,32.4,31.8,31.9,31,32,32.1,32.8,32,31.2
1971,31,31.6,31.9,33,30.6,31.6,31.5,31.8,31.9,31.8,31.5,31.4
1972,30.2,30.7,31.4,30.5,31.6,32.3,31.4,32.4,33,31.7,32.6,31.9
1973,32.3,31.8,32.7,32.5,33.2,32.7,32.7,31.9,32.1,32.5,30.8,30.4
1974,29.8,30.6,30.8,31.4,31.5,33,31.8,31.7,31.7,32.2,31.7,31.2
1975,31,30.7,31.7,31.6,31.1,31.8,31.3,31.8,32.1,31.9,31.5,29.7
1976,29.6,30.1,30.3,30.6,31.8,31.7,30.5,31.9,33.3,32.8,32.6,31.8
1977,31.9,32.7,32.2,32.9,32.9,31.2,32.4,32.4,32.9,33.2,32.5,32.2
1978,31.5,32.5,32.4,30.9,32.7,31.1,31.2,31.6,33,32.7,32.5,31.5
1979,31.2,32.1,31.6,31.7,32.3,30.8,31,32.4,32.7,33.2,32.4,31.9
1980,31.6,31.5,32.5,33.1,31.9,31.9,31.6,31.7,32.5,32.9,31.9,31.7
1981,31.7,31.9,32.3,29.9,31.1,31,30.3,30.8,31.4,32,31.9,31.4
1982,30.4,31.1,31.2,30.1,30.4,31.7,32.2,32.3,32.7,32.8,33,32.5
1983,33,34.5,34.5,34.1,33,32.3,31.9,32,32.4,32.3,32.7,31.8
1984,31.3,31.5,31.2,31.3,32.3,31.9,30.6,30.9,31.5,31.8,32.1,30
1985,30.1,30.8,30.8,31.6,31.5,31.7,31.5,31.5,32.5,32.1,30.9,30.3
1986,31.1,31.5,32.1,32.7,32.3,32,32,32.3,32.1,32,31.2,31.5
1987,31.8,33.3,33,34.2,31.7,32.6,32.3,32,33.4,33.3,32.6,32.6
1988,31.9,31.9,32.5,33.5,33.4,31.4,31.6,31.4,32.5,32.4,31.5,30.4
1989,30.1,30.7,31.1,32.1,32.4,32.6,31.6,33.1,33,32.6,32.1,31.8
1990,31.1,30.7,31.8,32.4,31.9,31.7,31.3,32.5,33.6,33.5,32.8,32.1
1991,32,33.4,32.3,31.6,32.5,32.4,32.1,32.3,32.4,32.9,31.7,31
1992,31.4,32,33,33,32.1,31.8,30.9,32.4,33.2,33.7,32,31.5
1993,31.5,32.1,32.5,31.9,31.3,32.1,32,32,32.8,33.8,31.6,32.4
1994,31.5,32.1,32.4,32.3,33.4,32.9,31.4,32.1,32.7,33.1,32.3,32.7
1995,32.5,32.9,32,31.8,33.1,31.7,31.7,32,33,32.4,32.3,32.4
1996,32.1,32.3,32.7,33,32.4,31,30.6,31.8,32.7,32.5,31.5,31.3
1997,31.2,31.5,31.9,32.5,32.8,32.3,31.4,32.2,33.4,33.4,33,33.1
1998,33.5,33.4,33.2,32.1,31.9,31.8,32,33.4,33.1,33.2,32.3,32.4
1999,31.3,31.6,32.6,31.2,33.5,32.9,31.7,31.8,33,32.7,31.5,29.9
2000,30,30.6,31.3,33.3,32.7,32.1,32.4,33,32.4,32.6,31,32.5
2001,31.7,32.1,33.8,33,33.9,33.2,32.9,32.2,33.7,33.8,32.8,32.1
2002,31.9,32.1,32.5,31.4,32,31.3,32.3,33,33.4,34,33.5,33.5
2003,32.7,33.1,33.6,32.8,33.5,32.6,32,32.6,33.1,34.1,32.4,32.8
2004,31.6,32.5,32.6,32.3,32.6,31.7,31.6,31.8,32.1,32.5,31.4,32.6
2005,30.4,29.5,33.5,33.1,32.1,32,31.1,32.2,33.3,33.1,31.3,31.3
2006,32,31.5,31.9,30.5,31.5,31.6,31.4,31.7,33,32.9,32.6,31.8
2007,31.6,33.3,32.6,32.2,32.8,32.1,31.5,32.3,32.8,32.1,32.5,32.4
2008,31,30.9,31.5,31.4,32.2,32.2,31.3,32.5,32.9,32.1,32.1,30.7
2009,32.3,30.1,30.3,31.9,32.5,33.5,32.2,32.4,33.8,34.6,33.1,33.9
