1901,31.1,33,32.2,32.2,31.5,30,28.7,28.6,29.5,30.6,32,31.8
1902,30.9,32.6,32.7,32.8,31.7,29.8,28.7,28.5,29.5,30.4,32,32
1903,32.4,33.3,33.1,32.6,31.7,29.7,28.8,28.7,29.7,30.9,32,31.6
1904,32.5,33.2,33.1,32.5,31.6,29.5,28.7,28.1,29.1,30.6,31.6,31.8
1905,31.5,31.4,32.5,32.3,31.8,29.5,28.7,28.4,29.7,30.5,32.8,33
1906,32.7,33,33.2,34.1,32.2,30.7,29,28.4,30.4,31,32.1,32.5
1907,31.6,32,33.1,32.4,32.5,30.2,28.9,28.8,29.8,31.7,32.4,31.2
1908,31.3,32.1,32.7,32.6,32.7,30.8,29.5,28.1,29.6,30.5,31.8,32.1
1909,32.7,33.8,35.1,32.9,31.7,29.4,28.5,27.8,29.5,29.9,32.7,32.4
1910,33.1,33.7,33,32.6,32.3,31.3,29.3,28.6,30.1,30.7,32,32
1911,32,33.3,33.4,32.7,31.6,29.4,28.7,28.3,29.3,30.5,32.4,31.6
1912,31.3,32.7,32.7,33.1,32,30.4,29.3,29.2,30.2,30.5,31.5,32
1913,31.1,32.5,32,32.5,32.3,31.1,29.8,29.8,30.5,30.5,31.7,31.8
1914,33.8,33.1,33,32.5,32.7,30.5,30,28.9,30.1,31.2,33.4,32.4
1915,32,33,33.3,32.4,31.7,29.8,28.7,28.6,29,29.9,31.6,31.3
1916,32.5,33.4,33,32.1,31.4,29.8,28.7,28.4,29.2,30.2,31.6,32.5
1917,32.2,33.3,32.9,32.4,31.7,30.2,28.7,28.6,29.6,30.5,31.7,32.3
1918,33,32,32.6,32.4,31.1,30,28.7,28.7,29.5,30.5,31.7,32
1919,32.3,33.2,33.5,32.6,31.7,30.3,29.1,28.6,29.7,30.9,31.4,32
1920,32.7,33.4,33.6,32.6,31.7,30,29,28.6,29.5,30.6,32,31.9
1921,31.5,33.3,33.4,32.9,31.9,30.3,28.9,28.8,29.7,30.6,32,32.6
1922,32.6,33.1,32.8,32.5,31.5,29.9,28.6,28.5,29.2,30.9,32.2,32.3
1923,32.9,32.8,32.3,31.2,31.2,29.9,28.3,28.3,29.4,30.5,31.5,32.8
1924,31.4,32.7,33.2,32.5,31.5,30.2,28.2,28.5,29.4,30,31.7,32.2
1925,31.8,32.7,32.9,32.5,30.7,29.1,28.5,27.9,28.8,30,30.9,31.2
1926,32,33.7,33.1,31.9,31.2,29.7,28.4,29.1,30.3,31.1,31.9,32.3
1927,33,33.7,32,32.3,31.4,29.7,28.1,27.9,28.9,29.8,32.2,32.5
1928,32.7,32.6,32.5,31.3,30.5,30.1,28.9,28.1,29.2,29.9,31.7,31.6
1929,33.3,32.9,32.2,30.7,31,30.3,29.5,28.7,29.8,29.7,30.8,30.4
1930,33.3,35.1,33.5,32.3,31.2,30,29.3,28.9,30.1,29.5,33.4,34
1931,32.2,33.6,32.8,32.9,31.9,30.4,29.7,29.2,29.3,30.7,32.6,33.3
1932,33.7,34.3,33.4,33.5,31.9,29.6,28.7,30,29.7,31.6,33.9,34.1
1933,34.4,35.2,34.3,33.3,31,30.3,29.2,28.6,30.1,30.3,33.4,32.8
1934,34,34.1,33.1,32.5,31.4,29.6,28.6,28.5,29.5,30.8,33,33.3
1935,34.1,34.9,35,33.4,31.6,29.5,28.7,28.2,29.2,30,31.9,31.9
1936,32.1,32.3,33.9,31.8,30.7,29.6,28.3,28.4,29.1,30.5,31.7,31.6
1937,33.7,34.2,34.4,33.4,32.7,30.8,29.6,28.9,30.1,31.6,33.1,33.9
1938,33.1,34.7,33.1,33.4,32.8,31,29.2,28.8,30.1,31.4,33.2,32.3
1939,33.1,33.7,33.5,32.4,32.1,30.5,29.6,29.1,29.4,30.5,32.5,32.7
1940,32.2,33.3,33.7,32.9,31.9,30.2,28.8,28.7,29.5,30.6,31.9,32.4
1941,32.9,34.1,34.7,33.4,32.7,30.8,29.5,29.4,30.8,32.1,32.8,33
1942,32.6,34.4,34.1,33.1,31.8,30.7,29.2,28.7,30.6,30.9,32.5,32.8
1943,32.6,34,32.9,32.6,30.6,29.3,28.7,28.6,29.6,30.8,32.3,33.1
1944,31.9,33.3,33.3,32.3,33.3,30.4,29.3,28.7,30.4,31.4,32.7,32.9
1945,32.7,33.6,33.2,32.7,32.2,30.4,28.7,28.6,30.3,30.5,32.2,32.1
1946,33,33.7,33.8,33.1,31.7,29.5,28.7,28.2,29.4,29.2,32.1,31.9
1947,32.5,34.3,33.1,32.6,32.3,30.7,29,29.1,29.7,30.8,31.7,32
1948,32.7,33.6,33.2,31.8,31,29,28.5,28.5,29.7,31,31.7,32.1
1949,32.7,33.7,33.6,32.5,32,30.5,29.1,28.5,30,31.4,32.4,32.1
1950,32.7,33.4,33.1,32.5,31.9,30.4,28.6,28.3,29.6,30.2,31.5,31.8
1951,33.2,34.3,34.1,33.9,32.2,30.6,29.3,28.2,30.4,30.6,32.2,33.1
1952,33.2,33.4,33.6,33.1,31.4,30.1,28.1,27.8,29,30.1,31.2,32
1953,31.8,32.8,32.3,33,30.9,29.5,28.5,27.8,29.6,29.9,31.8,32.2
1954,31.4,32.7,32.5,31.7,31.2,29.2,27.5,27.6,29.2,29.7,31.6,32.1
1955,31.5,32.9,32.2,31.8,31.5,29.3,27.6,27.7,29.2,29.9,31.8,31.4
1956,31.9,32.7,31.9,32.2,31.3,29.4,27.5,27.5,29.7,30.3,31.6,32
1957,31.6,33.1,33.5,32.1,31.5,30,28.6,28.5,29.3,29.7,31.4,32
1958,33.2,32.9,33.7,32.1,31.1,29.4,27.6,28,29.3,30,31.4,32.4
1959,32.4,33.2,33.5,33,31,29.9,28.7,28.2,29.4,30.8,31.9,32.5
1960,32.2,33.6,32.6,31.5,31.4,29.8,28.7,28.7,29.7,30,31.8,31.9
1961,32.7,33.4,33.5,31.6,31.8,29.2,28,28.2,29.2,30.6,31.5,32.2
1962,32.3,33.4,33.1,32.3,31.8,29.1,28.5,28.2,29.3,30.5,31,32.2
1963,32.4,33.4,33.3,32.3,31.6,30.6,29.3,29.5,30.3,30.8,32.3,32.6
1964,32.4,33.6,33.8,32.8,31.5,29.3,28.1,28.4,28.9,29.7,31.6,31.2
1965,31.5,32.9,33.5,32,31.7,29.6,28.1,28.2,29.5,30.7,31.7,32.1
1966,32.3,33.9,33.5,32.8,31.8,30.6,29.7,29,29.5,30.5,31.8,32.2
1967,32.2,33.8,33.2,32.8,31.5,29.6,28,29,29.4,30.2,31.7,31.8
1968,31.9,33.2,32.9,32.1,31.6,29.6,28.7,29.3,29.1,30.6,31.8,32.1
1969,32.2,33.9,33.3,33.2,32.5,30.5,28.4,28.7,29.3,30,31.8,32.4
1970,31.9,33.7,33.6,32.9,31.7,30.2,28.4,28.8,29.8,30.4,31.7,31.9
1971,31.8,32.3,33.1,32.6,32.5,29.8,28.5,27.5,28.6,30.7,32,31.6
1972,32.1,33.4,33.2,32.3,31.4,30.1,28.5,28.3,29.5,30.6,32.7,32.3
1973,33.1,34.2,33.5,33.4,32.6,30.7,29.5,29,29.6,30.9,32.4,31.6
1974,31.4,33,32.3,32.2,31.1,29.6,28.5,28.5,28.3,29.8,32,31.4
1975,31.9,32.3,32.6,32.4,31.3,29.6,28.2,27.4,28.1,30.2,31.4,31.9
1976,31.8,32.3,32.3,31.9,31.2,28.9,27.5,27.4,28.9,29.3,30.9,31.5
1977,31.9,32.9,33.3,32.9,31.8,29.6,29.3,28,29.4,30.8,32.3,31.9
1978,32.4,33.1,32.4,31.6,30.8,29.2,28.5,28.8,29.6,31.1,31.9,32.1
1979,32.5,33.1,33.2,32.7,31.6,29.7,28.5,29.1,29.9,30.7,31.8,31.9
1980,32.5,32.9,32.8,32.6,30.6,30.5,27.9,28.6,29.7,30.5,31.8,31.3
1981,32.2,33.1,33.1,33,31.7,30.8,28.5,28.8,30,30.9,32.5,32.9
1982,33,33.7,33.2,32.7,30.9,29.3,27.8,27.5,29.8,30.2,31.4,32.1
1983,32.5,33.5,33.9,33.3,31.7,29.3,28.3,28.4,29.6,31.1,32.1,31.6
1984,32.8,34,33.8,32.1,31.8,30.4,29.2,29.7,29.7,31.1,32.1,32
1985,32.3,33.5,32.9,32.4,30.7,30.1,28.7,29,30.2,31.3,31.8,32
1986,32.6,33.6,32.4,32.7,32.5,30,27.7,28.3,29.1,30.1,31.2,32.1
1987,32.6,33.3,33.4,33.9,33,30.8,30.3,29.7,30.1,30.8,33.2,32.8
1988,33,34.1,33.4,33,32.1,30,29,29,29.7,31.5,32.6,31.7
1989,32,33.1,32.8,32.3,31.3,29.9,29.1,29.2,30.4,31.1,32.8,32.4
1990,32.4,33.5,34.5,32.3,31.5,31,28.6,28.8,29.8,30.9,32.1,32.4
1991,32.4,33,32.9,31.8,31.6,30.8,28.9,28.3,29.6,29.8,31.7,31.9
1992,31.9,33.6,33,32.7,32.1,29.8,28.3,28.2,29.1,30.9,31.8,32.8
1993,32.3,34,32.7,33,32.2,30,28.3,28.7,30.1,31.6,32.6,32.9
1994,31.7,33.5,32.7,32.1,31.7,30.4,28.5,28.3,29.7,30.6,32.8,31.9
1995,33.4,33.9,32.7,32.9,32.6,30.8,29,29,29.9,30.9,33.1,32.9
1996,32.4,33.5,33.2,32.7,32.2,30.3,29.4,28.8,28.9,30.5,32.6,32.5
1997,32.6,34.2,32.2,31.8,31.5,29.8,28.1,28.7,30.7,31.4,32.4,32.5
1998,32.7,34.6,34.7,34.1,32.8,31.7,28.8,28.8,30,31.2,33.2,33.4
1999,32.5,33.5,33.5,32.9,32.7,31.2,29.2,28.7,29.2,30.1,32.5,33.5
2000,33.1,33.8,34,33.3,32.9,30.5,28.9,28.6,30.2,31.3,33.1,33.8
2001,33.4,34.5,34,32.9,31.9,30.3,29.1,28.5,29.8,31.3,32.8,33.2
2002,32.3,33.8,33.9,32.7,33.1,30.7,29.4,28.9,29.4,30.9,32.6,32.8
2003,32.5,33.7,33.9,32.6,33,30.2,28.7,29,30.3,31.5,33.2,33.2
2004,33,33.4,33.6,32.5,31.6,30.4,28.7,28.7,30.2,31.2,32.9,33.4
2005,32.4,34.1,32.6,33.5,31.9,30,28.4,28.4,30.1,31.3,33,33.3
2006,32.6,34.1,33.5,33.6,31.8,31.7,29.6,29,29.7,31.3,32.5,32.8
2007,31.4,34.1,33.4,32.4,32.2,30,29.1,29.4,30.1,30.9,32.5,32.6
2008,31.4,33.2,33.6,32.9,32,30.5,29.4,29.1,30.1,31,32.9,33.1
2009,33.5,33.9,33.7,32.4,32.6,31.2,28.8,28.4,30.1,30.4,32.7,33.5
