1901,31.2,31,31,31.5,32,33.2,33.7,34.1,33.6,32.6,31.8,31.5
1902,31.2,31.5,31.6,32,32.1,33.4,33.9,33.9,33.5,32.3,31.5,31.6
1903,30.9,30.5,31.1,32.4,33,33.4,33.9,33.9,33.3,32.4,31.7,31.5
1904,30.8,31.2,30.9,32,32.3,32.7,33.1,33.1,33.1,32.1,31.4,31
1905,30.9,30.6,30.4,31.3,32.3,33,33.6,34,33.5,32.4,32,31.2
1906,31.4,30.7,31.3,31.5,31.5,32.2,33.3,33.8,33.3,32.5,31.8,31.3
1907,31.1,30.7,31.6,31.9,33,33.6,33,34,33.6,32.8,31.7,31.4
1908,31.5,32.1,31.6,32.2,32.9,33.5,34.1,34.4,33.9,32.7,31.6,31.5
1909,31,30.9,32,32.1,32.9,33.7,33.9,34,33.5,32.7,31.9,31.4
1910,30.8,31.3,31,31.3,31.8,32.9,33.8,34.1,34,32.9,31.9,31.3
1911,30.4,31.1,30.7,31.7,32.6,33.6,33.9,34.1,33.8,32.8,32.1,31.6
1912,31,30.4,31.2,31.9,31.9,32.8,33.1,34.2,33.2,32.7,32,31.3
1913,31.3,30.7,31,31.7,31.8,32.7,33.5,33.6,33.4,32.7,32.3,31.4
1914,31.4,31,31.5,32,32.1,32.9,33.8,33.3,34,32.9,32.3,32.2
1915,31.9,32.1,31.1,33.3,34.3,34.1,34.8,34.8,33.8,33.3,32,31.5
1916,31.1,31.6,31.1,31.9,32,32,33.2,33.8,33.3,32.6,31.7,31.1
1917,30.1,29.6,30.3,31,30.9,31.5,32.9,33.5,33.4,32.6,31.8,30.9
1918,30.4,30.3,31.6,31.8,32.5,32.7,33.6,33.4,33.4,32.9,32.4,31.6
1919,31.3,32.1,32.8,31.6,33.8,34.3,34.2,33.6,33.3,32.5,31.9,31.5
1920,31.5,31.8,31.3,31.9,32.1,32.1,32.9,33.6,33.5,33.3,31.9,31
1921,30.9,30.4,30.7,31.3,31.5,31.8,32,33.5,33.2,32.6,31.6,31.6
1922,31.4,31.3,31.2,31,31.4,32,32.1,32.9,33,31.9,31.2,30.7
1923,30.8,30.2,30.7,30.6,31.5,32.4,32.8,33.7,33.3,32.9,32,31.5
1924,31.8,30.6,31,31.1,31.3,31.6,32.6,32.7,32.9,31.7,31.5,30.7
1925,30.1,29.9,30.4,31.1,32,32.8,33.7,33.9,33,32.4,31.6,31.5
1926,31.1,31.3,31.5,31.8,31.9,32.6,33.4,34.1,33.8,32.2,31.9,31
1927,30.6,30.5,30.4,31.2,31.7,32.2,32.8,33.5,33.3,32.1,31.8,31.7
1928,31.2,31.6,31.4,31.4,32,33.2,33.4,33.5,33.2,32.3,31.5,31
1929,31.1,30.6,30.6,30.8,31.5,32.6,33.1,33.6,33.3,32.4,31.4,30.6
1930,30.7,30.8,31.5,31.5,32.6,33.2,33.7,34.2,33.3,32.2,31.8,31.6
1931,31.5,31.3,31.5,32.2,32.7,33.5,34.3,34.1,33.2,32.4,31.6,31
1932,30.7,30.9,31.3,32.5,32.8,33.3,34.2,34.2,33.2,32.4,32.1,31.1
1933,31.1,30.8,31.1,31.5,32.1,32.7,33.7,34.1,33.8,32.5,31.5,31
1934,30.8,30,29.9,31,31.3,31.9,33.1,33.7,33.6,32.3,31.8,31.1
1935,31.3,30.2,30.8,31,31.6,32.2,33.2,33.9,33.3,32.8,31.9,31.7
1936,31.2,31,31.6,32.2,32.8,32.5,32.9,33.8,33.6,32.8,31.9,31.5
1937,31.8,31.2,31.8,31.6,32,32.7,33.6,34.4,33.9,32.8,32.5,32.2
1938,31.3,32,30.9,31.3,31.9,32.8,33.9,33.9,33.6,32.6,31.2,31.3
1939,31.3,30.7,30.9,31.3,32.4,33,33.6,33.9,33.4,32.3,31.9,31.7
1940,31.1,31.5,31.2,31.4,32.1,32.2,33.2,33.5,33.5,32.6,31.8,32
1941,31.5,31.7,31.7,32.3,32.9,33.7,34,34.4,33.3,33,32.1,31.8
1942,32,31.4,32.2,32.8,33.3,33.4,33.7,33.9,34,32.8,32.1,31.2
1943,31.1,30.8,31.1,31.5,32.7,33.2,33.6,33.3,33.2,33,31.8,30.9
1944,30.7,31.1,31.2,31.2,31.9,32.9,33.5,34.6,33.4,32.8,32.2,31.7
1945,31.1,30,31.5,31.5,31.4,32.1,32.9,34.1,33.7,32.4,31.8,31.3
1946,30.2,30.4,31.2,31.6,32.6,33,33.8,33.6,33.5,32.4,32,31.3
1947,30.9,30.7,30.9,31.4,31.7,32.8,33.6,35.2,33.5,32.7,31.5,31
1948,31.2,31.4,31.1,31.5,32,32.8,33.4,33.8,33.2,32.7,31.8,31.7
1949,30.6,30,30.5,31.1,31.5,32.5,32.7,33.6,33.5,32.7,31.5,31.4
1950,30.7,30.3,29.9,30.8,31.6,32.6,32.4,33.2,33.6,32.2,31.4,31.3
1951,30.7,30.8,30.5,30.9,31,32.1,32.4,34,33.6,32.5,32,31
1952,31.8,30.6,30.6,31,31.8,32.2,32.9,33.5,33.6,32.5,31.5,30.8
1953,31.2,30.8,31.1,31,32.3,32.5,33.1,34.1,33.4,32.3,31.9,31.2
1954,31.1,30.7,30.6,32.6,32.2,32.8,33.1,34.7,33.4,33.1,31.3,31.2
1955,30.5,30.5,31.2,30.8,31.6,32.5,33,33.4,33.7,32.5,31.2,31.6
1956,30.7,29.8,30.6,30.7,31.8,31.9,33,33.3,33.3,33,31.5,31.1
1957,29.9,30.5,29.7,30.5,32.3,33.4,33.1,34.2,33.5,32.8,32,31.8
1958,31.2,31.3,31.1,31.8,33.1,33.2,33.5,33.7,33.4,32.7,31.8,32.6
1959,30.8,30.7,30.8,31.9,32.6,32.5,33.1,34,33.4,32.6,31.6,31.5
1960,30.6,30.7,30.4,31.8,32.3,32.3,33.2,33.9,33.7,33,31.8,31
1961,31.3,30.8,31.6,32,32.4,32.6,33.8,34.6,34.7,32.8,32.2,31.2
1962,31.4,31.4,31.2,31.4,32.6,32.7,33.9,35.2,34.7,33,32,31.8
1963,31.3,30.7,30.7,31.4,32,33.1,33.3,34.7,34.8,34,32.5,31.2
1964,30.6,30.8,30.9,31.1,31.7,32.6,34.1,34.7,34.5,32.5,32,31.5
1965,30.9,30.8,30.8,31,32.4,32.9,34,34.9,35.1,33.7,32.6,32
1966,31.6,31.2,31.7,32.1,33.3,32.9,33.9,35.3,34.4,33.6,32.2,31.9
1967,31.7,30.8,30.9,31.3,32.4,32.5,33.2,34.3,34.2,32.8,31.8,32.1
1968,31,30.7,30.8,31.7,32.2,32.3,33.8,35.2,34,32.8,31.8,31.8
1969,31.4,31.7,31.7,32.3,33,33.4,34.2,35.1,34.2,33.6,32.6,31
1970,31.6,32.2,32,32.7,33.1,33.5,34.5,35,34,33.3,32.6,32.4
1971,32.2,30.3,30.7,30.9,31.8,31.6,32.5,33.1,32.6,32.2,31.3,31.7
1972,30.5,30.2,29.7,31.3,31.6,31.9,32.8,33.4,33,32.4,32,31.7
1973,31.7,31.2,31.4,31.6,31.8,31.9,31.2,33.2,33,33.4,32.5,30.9
1974,30.6,30.5,30,31,30.8,31,31.4,32.2,32.8,32,30.8,30.5
1975,29.6,29.5,29.5,30.3,31.4,32.2,31.2,31.6,32.9,32,30.9,31.2
1976,30.2,30.1,30.9,30.8,31.4,31.4,32.3,34.9,32.7,32.2,31,31.1
1977,30.4,29.8,30.7,30.9,31.7,32.1,33.1,33,32.9,32.4,31.7,31.2
1978,31,31.2,30.8,31.4,31.9,31.7,32.8,33.2,33,32.8,31.9,31.4
1979,31,30.8,31.3,31.6,31.9,31.9,32.6,33.4,32.7,32.5,31.6,31.3
1980,30.8,29.8,30.8,31.4,32.6,32.9,33.7,33.5,33.7,32.8,31.7,31.2
1981,30.7,31.1,31,32.2,32.2,31.8,32.3,32.8,32.5,32.1,31.7,31.6
1982,30.5,30.7,31.2,31.5,32.1,32.5,33.3,33.4,32.9,32.4,31.6,31.3
1983,31.9,31.7,31.3,32.6,33.2,33.1,33.9,33,33.5,32.1,31.9,31.1
1984,30.6,30.5,30.8,30.7,31.9,32.1,33.1,33.6,33.2,32.1,31.7,31.7
1985,30,30.2,30.8,30.7,31.8,32.4,33.4,33.6,33.6,32.2,31.4,31.9
1986,30.6,30.4,30.7,31.1,32.4,32.4,33.6,33.7,33.5,32.4,31.8,31.4
1987,31.4,31.2,30.8,32.4,32.9,33.6,34.4,34.3,34.2,33.4,32.4,32.3
1988,31.6,31.6,31.4,31.7,32.6,32.7,33.8,34.3,34.2,32.5,31.6,31
1989,31,31,30.6,31.1,31.7,32.8,33.5,34,33.4,32.5,32.1,30.8
1990,31.7,30.8,31.5,32.5,32.6,33.2,33.8,34.3,33.8,32.8,32.2,31.7
1991,30.9,31.5,31.9,31.8,32.4,33.3,33.6,34,34,32.3,31.9,31.4
1992,31.1,30.9,31.2,32.1,33.1,33.1,33.7,34.4,32.8,32.5,31.4,31.1
1993,31.2,30.7,30.9,31.7,32.7,33.1,34,34.1,33.4,33,32,31.7
1994,30.9,31,30.8,31.6,32.5,32.8,33.6,34.4,34.2,33,32.2,31.6
1995,31.2,30.8,32,31.7,32.3,33,34,35.2,35,33.7,32.2,32
1996,31.5,31.6,31.4,31.5,32.6,33.5,34.1,34.9,34.5,33.2,32.2,31.5
1997,30.8,31.1,31.2,31.6,32.7,33.4,34.3,35,34.6,33.9,33.1,32.4
1998,32.2,32.6,32.1,33.4,33.8,34.3,35.2,35.6,35.4,34,32.3,32.3
1999,31.7,32.2,31.5,32,32.2,33.3,34.2,35.3,34.2,33.5,32.4,32
2000,31.5,31,31.5,31.7,32.9,33.6,34.4,35.1,33.8,33.1,32.1,31.6
2001,31.4,31.1,31.3,31.9,32.9,33.2,34.3,34.9,34.5,33.1,32.4,32.3
2002,31.2,32,31.5,32.2,33.3,33.5,34.8,35.3,34.5,33.1,32.3,31.9
2003,32.2,31.5,31.5,32.4,33.2,33.9,34.5,35.2,34.6,33.6,32.6,32.6
2004,31.5,31,31.6,32.6,33.6,33.4,34.2,34.5,34.6,33.5,32.6,32.5
2005,32.3,32.1,32,32.8,33.1,34,34.8,35.7,34.9,34.3,33.7,31.9
2006,32.2,31.8,31.6,31.7,32.7,33.5,34.7,35.2,35.1,34,32.5,32.3
2007,32.5,31,31.8,32.1,33.3,33.6,35.1,34.6,35.1,34.1,32.5,32.1
2008,31,31.2,31.1,31.6,32.4,33.1,34.6,35.6,35.3,34.3,32.9,32.3
2009,31.7,31.2,31.3,31.5,32.1,33.7,34.6,35,35.5,33.6,33.1,32
