1901,31,31.5,31.6,31.8,32.6,32.4,32.3,33.1,33.4,32.8,32,31.3
1902,30.9,31.5,31.2,31.5,32.1,32.3,32.4,33,33.2,32.7,31.8,31.3
1903,31.2,31.3,31.2,31.6,32.6,32.9,32.5,32.9,33.2,32.8,31.9,31.1
1904,30.9,30.9,31.1,31.1,32.2,32.4,32.2,32.5,33,32.5,32.1,31.3
1905,30.9,31.1,31.2,31.7,32.1,32.5,32.5,33.1,33.2,32.6,32.2,31.3
1906,30.8,31,31.3,31.5,32.3,32.3,32.4,33.1,33.2,32.9,32.2,30.7
1907,30.3,30.7,30.8,31.5,32.1,32.4,32.6,32.9,33.1,32.5,31.8,31.2
1908,31.1,31,31.3,31.5,32.6,32.7,32.6,33.3,33.3,32.7,31.7,30.9
1909,30.6,30.7,31.7,31.3,32.3,32.1,32.4,32.6,33.3,32.7,31.4,30.6
1910,30.4,30.5,30.9,31.3,31.9,32.2,32.4,32.7,33.6,32.5,32.1,31.3
1911,30.5,30.8,30.9,31.7,32,32.7,32.4,33.1,33.3,32.8,32.3,31.1
1912,31.2,31.5,31.6,31.5,32.4,32.4,32.7,33.1,33.3,32.6,32,31.3
1913,30.7,30.7,30.9,30.9,32.6,32,32.1,32.7,33.1,33.2,31.7,30.8
1914,30.7,30.9,31.2,31.3,32.1,32,32.4,32.9,33.3,32.7,32.2,31.6
1915,31,30.9,31.9,31.2,33.2,33.2,33.4,34.1,33.8,33.9,32.5,31.7
1916,30.8,30.9,31.2,32.1,33,33,32.9,33,33.5,32.5,31.7,30.6
1917,30.1,30,30.9,31.5,32.3,31.9,32.5,32.7,33.1,33.2,31.7,30.9
1918,30.7,30.6,30.4,31.1,31.1,31.7,32.6,33.4,33.6,33,31.8,31.2
1919,30.9,31.4,31.4,31.1,32.6,32.5,32.2,32.9,33,32.5,31.8,31.2
1920,30.8,31.2,31.4,31.8,32.7,32.5,32.4,32.9,33.2,32.5,31.8,31.1
1921,30.9,31.2,30.6,30.7,31.7,32.4,32.2,32.5,33.1,32.3,31.8,31
1922,30.6,30.5,30.6,31.8,31.9,31.6,32,32.9,33.1,32.4,31.3,30.4
1923,29.9,30.2,30.8,31.2,32.5,32.2,32.4,32.9,33.6,32.7,32.2,31.1
1924,30.9,31.1,32.2,32.1,32.7,31.8,31.9,33.3,33,32.5,31.9,30.8
1925,30.2,30.2,30.5,31.8,32.3,32.6,32,32.8,33,33.1,32.3,31.4
1926,31.2,32,31.8,32.5,33.4,33,32.4,32.9,33.1,32.6,31.8,30.8
1927,30.6,30.4,31.1,30.8,31.7,31.9,31.7,32.9,32.9,32.8,32,30.9
1928,30.5,31.3,31.4,31.3,32.5,32.2,32.3,32.6,33.1,32.8,32,30.9
1929,30.6,31.1,31.2,31.1,31.5,32.1,32.4,32.7,33.1,33,32,31.1
1930,30.5,30.9,31.6,31.6,32.4,32.2,32.4,33,33.1,32.7,32.4,31.7
1931,31.4,31.6,32.6,32.2,33.2,33,32.6,33.1,33.2,32.9,32,31.2
1932,30.8,31,31.7,32.1,32.1,32.6,32.4,33.2,33.6,32.9,32.3,31.5
1933,31.6,30.9,31.4,32,33.3,33.3,33.5,33.7,33.8,33.4,32.4,31.8
1934,31.3,30.6,31.2,32.6,33.6,32.8,33,33.9,34.3,34,32.9,31.9
1935,31.3,31.4,31.4,31.8,32.6,33.4,33.3,33.3,34.1,33.5,32.5,31.6
1936,31.3,31,31.8,32,33.1,33.1,33.3,34,34.1,33.6,33,31.3
1937,30.4,30.9,32.1,32.3,32.8,32.7,32.9,33.3,33.6,33.1,32.8,31.7
1938,31.5,31.3,31.1,31.1,32,32.5,32.8,33.1,33.8,33.4,31.8,31.3
1939,31,30.5,30.8,31.2,32.5,32.4,32.7,33.8,34.1,33.6,32.6,32
1940,31.7,32.4,32.5,32.6,33.7,33.3,33.5,34.1,34.6,33.8,32.6,32.3
1941,32.2,33.1,33.5,33.1,32.9,33,33,33.3,34.1,34,33.3,32.6
1942,32.5,30.9,33.4,33.2,32.8,33.3,33.5,34.3,34.3,34,33,32.2
1943,31.9,31.6,31.8,32.2,32.1,32.7,33.1,34,34.6,33.9,33.2,32.3
1944,32.4,31.9,32.3,32.2,32.8,32.9,33.8,34.5,34.7,34,32.7,31.8
1945,30.1,30,30.8,30.4,30.9,31.7,32.5,33.1,33.2,32.9,31.9,32.3
1946,31.1,31.5,31.8,30.9,31.6,32.1,32.6,32.9,33.5,33.3,32.1,32.5
1947,30.9,32.7,32.7,31.8,33,33.4,33,33.5,34,33.5,33.2,32.2
1948,31.2,31.3,31.6,31.2,32.3,33.1,32.7,33.5,34.1,33.3,32.8,32.4
1949,30.5,30.8,31,32.4,33.4,33.3,32.9,33.7,33.6,33.1,32.9,31.6
1950,30.3,31.1,31.8,31.3,31.9,32.1,32.1,32.8,33.3,32.7,31.8,31.4
1951,30.8,30.6,31,31.8,32.7,33,33.1,33.9,34.4,33.5,32.6,31.6
1952,30.8,31.7,32.2,32.3,33.1,33,33.6,34.3,35,34.7,33.3,32.8
1953,32.1,32.1,32.2,33.2,33.1,33.7,33.5,33.8,34.8,34.4,33.9,32.8
1954,31.9,32.3,33.1,32.1,33.2,33.4,33.5,33.4,34.6,33,33,32
1955,32.6,31.8,31.9,32.5,33.1,33.4,32.7,34.7,34.3,33.9,33.6,32.4
1956,31.1,30.8,31.3,31.9,33.2,32.5,32.9,33.4,34.3,33.5,33.1,31.4
1957,31,30.8,32.8,32.3,32.6,32.6,33,33.4,34.5,34.3,33.2,32.1
1958,32.2,33.5,34.5,32.3,33,33.7,32.9,33.5,34.5,34,33.1,32.1
1959,31.8,32.1,31.9,31.9,31.8,32.4,32.9,33,33.5,32.7,32.3,32
1960,31.8,32.2,32.3,31.8,32.5,32.5,32.7,32.5,33.4,33.3,32.7,30.8
1961,31.4,31.7,31.4,31.9,32.8,32.4,32,32.7,33.2,33,30.8,30.9
1962,31.1,31.4,31.5,32.6,32.5,32.9,33.1,33.4,34.1,33.6,32.7,32
1963,31.2,31.5,31.7,31.8,31.6,32.7,32.5,33.7,33.9,33.8,32.4,32.6
1964,32.2,32.3,32.3,32,32.9,32.5,32.4,33.6,33.8,32.9,32.1,30.7
1965,30.4,30.5,31.7,32.1,32.3,32.2,32.8,32.9,34.1,33.6,32.1,31.5
1966,31.9,32,32.2,32.6,32.9,32.5,32.8,33.5,33.4,32.8,31.1,30.4
1967,30.4,31.2,31.3,31.1,32,32.6,32.5,33.5,33.6,33.6,32.5,31.6
1968,31.2,31.6,32.2,31.8,32.6,32.9,33.4,33.6,33.8,33.7,32.7,32
1969,30.8,30.9,32.5,32.7,33.3,33.5,33.3,33.7,34.5,33.3,32.3,31.8
1970,31.8,32.6,32.3,32.9,33.3,33.3,33,33.5,33.8,33,31.9,30.6
1971,30.7,31.3,32,32.1,32.3,33,32.8,33.2,33.1,32.6,32.3,31.5
1972,30.4,31.4,31.6,31.6,32.4,33,32.4,32.9,33.5,33.4,32.7,31.7
1973,32.3,31.9,32.1,32.6,33.3,33,33.3,33.1,33.1,32.7,31.2,30.3
1974,30.4,30.7,31.2,31.3,31.3,32.5,32.8,33.3,33.1,32.8,31.7,31.2
1975,30.9,31.4,31.8,32,32.3,33,32.8,33.2,33.5,32.4,32.2,29.7
1976,29.8,30.3,30.1,31.1,32.5,32.9,32.4,33.5,33.6,33,32.8,31.6
1977,31.9,32.2,31.3,32,32.6,32.7,33.4,33.6,33.9,33.5,32.8,32.5
1978,31.9,32.2,32.2,32.1,33.3,33.1,33,33.2,34.1,33.7,32.9,31.6
1979,31.5,32.8,31.8,32,33,32.8,33,33.6,34.1,33.7,32.6,31
1980,31.1,31.3,32,32.6,32.9,33.2,33.1,33.1,33.8,33.3,32.2,31.1
1981,31.3,31.3,32.3,31.3,32.2,32.5,33.2,33.3,33.3,33.4,32.9,31.9
1982,31,31.1,31.8,31.4,31.9,32.8,32.9,33.6,33.6,33.2,32.4,31.3
1983,31.4,32.6,32.5,32.5,32.9,34.3,33.6,33.4,33.9,33.2,32.8,31.7
1984,31,31.2,31.7,31.8,33,32.5,32.1,32.5,32.7,32.3,32,30.3
1985,30.2,30.4,30.4,31.1,32,32.5,33.2,33.3,33.6,32.5,31.5,30.8
1986,30.8,31.6,32.1,32.1,32.6,33.5,33.3,33.8,33.4,32.9,31.9,31.8
1987,31.3,31.8,31.8,32.9,33,33.8,33.3,33.9,34.1,33.3,32.7,32.6
1988,32,31.7,32.6,32.7,33.4,33.5,33.5,32.7,33.1,32,32.2,30
1989,30,30.3,31,32,32,32.8,32.8,33.9,33.4,33,32.4,32.1
1990,30.9,30.8,31.5,32.2,33.1,33.4,33.9,34,35.3,33.8,33.2,32.3
1991,32.2,32.5,32.3,32.6,33.6,33.6,33.8,33.6,33.8,33.3,31.8,30.9
1992,31.1,31.8,32.1,32.3,33.2,33.4,32.8,33.9,34.3,34,32.2,31.6
1993,31.2,31.6,32.1,32.6,33.3,33.6,33.9,33.9,33.9,34.1,32.2,32.4
1994,31.8,31.5,32.3,32.7,33.3,33.9,33.2,33.7,33.9,33.4,33.2,32.4
1995,32.6,32.8,32,32.7,33.8,33.6,33.6,33.7,34.8,33.6,33,32.3
1996,32.3,32.3,33,33.4,33.2,33.2,33.1,33.8,34.6,33.2,31.7,31.6
1997,31.6,31.7,32.1,32.4,33.8,33.6,33,33.4,34,33.6,32.7,32.5
1998,32.6,31.9,32,32.2,33,33.1,33.3,34.3,33.9,34.1,32.6,32.2
1999,31.6,31.7,32.9,32.3,34.3,34.3,33.9,33.4,34.7,33.2,32,30.9
2000,30.7,31.6,31.7,33.2,33.7,34,34.3,34.2,34.4,33.3,32.5,32.9
2001,32.3,32.4,33.1,33.5,34.6,34.2,33.8,33.2,34.4,33.2,32.3,31.2
2002,31.6,31.6,31.9,31.8,32.9,32.8,33.3,34.1,33.7,33.6,32.6,31.4
2003,31.6,31.5,31.8,31.9,32.6,32.2,32.1,33,33.4,33.5,32.3,30.8
2004,30.8,31.6,31.6,31.9,32.7,32.9,32.8,33.2,33.7,33,31.3,31.2
2005,29.9,30.4,32.7,31.9,32.8,33.2,32.8,33.7,33.9,32.7,31,30.7
2006,31.1,31,31.5,31.7,32.8,33,32.8,33,33.9,33.2,32.3,31.6
2007,31.2,32.9,32,32.2,33.4,33.5,32.7,33.9,33.7,32.6,32.7,31.5
2008,31,31,31.4,31.5,32.9,32.7,32.8,33.7,33.8,32.2,31.6,30.6
2009,31.5,30.2,30.3,31.8,32.6,33.2,33.3,33.4,34.2,34.4,33.2,32.5
