1901,31.8,34.2,33,32.8,31.9,30.6,29.2,28.7,29.8,31.1,32.1,31.5
1902,31.6,33.9,33.5,33.8,32.5,30.3,29.3,28.3,29.5,30.7,32,32.1
1903,33.5,34.7,34.1,33.4,32.5,30.4,29.2,28.6,30,31.4,32.1,31.6
1904,33.5,34.6,34,33.1,32.3,30.1,29.1,28.2,29.3,31,31.5,31.7
1905,32.8,32.8,33.7,33.1,32.5,30.1,29.1,28.4,29.6,31.2,32.1,32.2
1906,34.1,34.4,34.2,34.6,33,31.3,29.2,28.4,29.6,30.6,31.2,31.1
1907,32.7,32.8,34.2,33.2,33,30.9,29.8,28.6,29.7,31.9,32.4,31.5
1908,32.5,33.5,33.6,33.3,32.5,31.4,29.8,28.3,29.6,30.7,31.8,32.5
1909,34,35.1,35.9,33.2,32.4,30.1,29.1,27.7,29.7,30.6,32.8,32.5
1910,34.4,35.1,34,33.5,33.2,31.6,29.3,28.5,29.4,30.6,32.1,32.2
1911,33.3,34.6,34.2,33.4,32.2,29.7,29,28.2,29.5,30.9,31.4,30.8
1912,32.2,33.9,33.6,33.5,32.8,30.8,29.4,28.9,29.7,30.4,30.4,31.8
1913,32.2,33.7,33,33.1,32.9,31.8,29.9,29.6,29.6,30.8,31.2,31.4
1914,34.4,34.3,33.5,33.1,33.2,30.9,29.6,28.7,29,30.5,31.4,31
1915,32.6,34,34.3,32.9,32.3,30.1,29.2,28.6,29.1,30,31.3,30.9
1916,33.3,34.3,33.9,32.4,31.8,30.2,29,28.2,29,30.1,31.1,32.5
1917,33.4,34.4,33.3,32.8,32.1,30.5,29.3,28.6,29.5,30.7,31.1,32.2
1918,34,32.4,32.9,32.7,31.4,30.4,29,28.3,29.5,30.7,31.5,31.8
1919,33.4,34.6,34.2,32.9,32,30.8,29.3,28.5,29.7,31.3,31.4,32.1
1920,33.9,34.9,34.5,33.1,32.3,30.5,29.3,28.5,29.5,30.9,31.9,31.9
1921,32.4,34.6,34.2,33.4,32.3,30.6,29.4,28.8,30,31.1,32,32.7
1922,33.8,34.5,33.6,32.9,32.1,30.5,29,28.2,28.9,31,32,32
1923,33.9,34.1,33,32.2,32.1,30.6,30,28.4,29.5,30.5,31.6,33
1924,33.5,36.1,35.1,32.3,31.5,30.5,28.8,29.2,31.3,30.8,32.4,32.1
1925,32.6,33.7,34.2,34.3,32.9,30,29.5,28.3,29.3,29.9,31.1,31.1
1926,32.8,36.4,35.5,34.1,32.5,30.6,28.7,29.4,30.3,32.8,32.3,32.1
1927,34,35.3,32.9,33.2,32.2,29.6,29.1,28,30.1,30.8,32.2,31.5
1928,34,33.3,33.2,32,31,31,29.7,28.1,29.1,29.8,31.3,31.6
1929,34.2,34.6,33.7,33.4,32.1,30,29,28.5,29.9,30.9,32.2,31.2
1930,32.5,34.6,34.1,33,32.1,30.7,28.9,28.4,29.7,30.7,31.7,32.7
1931,32.8,34.5,34.7,33.3,32.5,31.2,29.7,29.3,29.5,31.4,32.6,33.5
1932,35.1,35.7,34.2,33.6,32.9,30.5,28.7,29.3,29.2,31.7,33.3,32.9
1933,34.5,35.8,33.7,33.2,32.1,30.6,29.9,28.7,29.9,30.8,33.1,32.5
1934,34.5,35,33.7,33.2,32.7,30.3,29.5,29.7,31,31.9,32.7,32.7
1935,34.9,35.9,35.1,33.6,32.4,30.2,29.1,28.1,30.5,30.4,31.8,32.8
1936,33.9,36.2,34.5,32.8,31.9,30.4,29.2,28.7,29.7,31.7,33.1,32
1937,35.1,35.7,35.2,34.1,33,31.1,29.6,29.3,30.2,31.6,32.8,33.8
1938,33.9,36.3,34.4,34,33.1,31.5,29.5,28.6,30,31.9,32.8,33.2
1939,34.1,34.8,34.1,34.1,33,30.9,30.1,29.2,29.7,31.2,32.7,32.6
1940,33.1,34.1,34.5,33.7,32.9,30.9,29.2,28.8,29.9,31,31.8,32.4
1941,33.5,35.4,35.4,33.7,32.3,31.2,29.7,29.8,31.5,32.2,31.8,32
1942,33.3,35.4,35.1,33.7,32.1,30.6,29.1,28.9,31.4,31.1,32,31.9
1943,33.5,35.1,33.4,33,31.2,30.4,28.6,28.5,29.9,31.2,31.1,32.3
1944,32.7,34.4,33.5,33.6,33.9,31.1,29.9,29.5,30.8,32,32.8,32.4
1945,33.5,34.9,34.2,33.6,32.7,30.9,29.2,29.2,30.7,30.8,32.1,32.5
1946,33.6,34.9,34.6,33.7,32.3,29.6,29,28.1,30,30.2,31.8,31.8
1947,33.5,34.7,34.1,32.7,32.7,30.8,29.4,29.2,30.1,30.9,31.3,31.5
1948,33.5,33.8,34.5,32.8,31.6,29.8,29.1,28.9,29.9,31.4,31.1,31.6
1949,33.5,34.9,34.3,33.1,31.9,30.6,29.7,28.8,30.4,31.3,31.6,32.2
1950,33.3,34.9,34.1,32.6,32.4,30.2,29.3,28.5,29.6,30.6,31.3,31.1
1951,32.9,33.1,32.9,34.3,32.2,31,29.3,29.2,29.8,30,31.3,32.6
1952,33.2,34.4,33.7,34,32,31.2,28.6,27.9,29.4,30.5,31.3,31.5
1953,32.4,33.3,33.3,33.8,32.6,30.4,28.9,28.2,29.8,30.8,32.4,32.3
1954,32.5,33.5,33.4,32.6,32.2,30,28,27.9,29.8,30.5,31.8,31.8
1955,32.3,33.6,32.5,32.6,32.1,30.2,28.3,28.5,29.1,30.2,31.8,30.9
1956,32.4,33.8,32.6,32.7,32.4,29.9,28.1,28.8,29.9,31.1,31.9,31.9
1957,32.2,34.5,34,34.2,32.6,30.1,29.2,30,29.3,30.7,32.1,32.8
1958,34.2,34.8,34.8,34.2,33.5,29.5,29.2,29.6,29.5,31.3,31.6,32.2
1959,33.6,34.3,34,34.1,31.9,30.8,29.1,29.3,29.6,31.6,32.2,31.5
1960,33,34.8,33.4,32.5,33.7,30.4,29.4,28.8,29.8,30.8,32.2,31.6
1961,33.7,35,35.1,33.5,33.2,30.4,29,28.7,29.6,31.7,32.6,32.7
1962,34.6,35.1,34.4,33.7,32.6,29.9,29.5,27.5,29.6,30.4,30.7,31
1963,33.2,34.1,33.9,33,32.3,31.4,30.4,30.1,31.1,31.1,32.7,32.6
1964,32.4,35.2,34.4,32.9,31.7,29.8,28.8,28.2,29,29.9,31,30.7
1965,32.3,33.4,33.9,32.5,32,30.1,28.7,28,30,31.1,32,31.7
1966,33.2,34.7,34.1,32.9,32.3,30.4,30,28.9,29.9,31.3,32.4,32
1967,32.8,34.1,33.6,33.1,32.5,30.5,28.5,27.9,29.4,30.8,32.2,31.8
1968,32.4,33.6,33.1,32.7,32.4,30.7,29.6,29.7,30.5,31.7,31.9,32.3
1969,32.9,34.8,34.4,34.6,33.4,30.9,29.1,28.8,29.7,31,31.8,32.3
1970,32.7,34.7,34.1,33.7,32.3,31.3,29.4,29,30.1,31.6,31.6,32.1
1971,32.4,32.6,32.8,32.7,32.3,30.2,29,28.1,28.5,30.5,31.4,31.1
1972,32.3,33.9,33,32.2,31.4,30,29.1,28,29.1,30.8,31.8,32
1973,33.1,34.8,34.2,33.5,33.4,30.6,29.8,28.7,29.5,31.1,32.1,32.2
1974,32.6,33.9,33.4,32.8,31.9,30.5,29.1,29.3,28.9,30.6,31.8,31.3
1975,33.5,33.7,33.5,32.6,31.8,30.8,29,28,29.2,30.3,31.7,31.5
1976,33.2,33.3,33.4,32.6,31.6,29.2,28.2,27.9,28.8,29.2,30.7,31.7
1977,32.5,34.4,34.7,33.8,32.5,30.1,28.7,27.9,29.6,30.5,32.3,31.9
1978,33,34.2,33.1,32.2,31.7,29.5,28.1,28.7,29,30.3,31.6,31.6
1979,32.8,34.3,34.5,33.8,32,29.9,28.8,28.8,30,30.7,31.7,31.2
1980,32.4,33.5,33.3,33.3,31.7,30.2,28.6,28.6,29.9,30.3,31.1,31.5
1981,33.4,34.1,33.5,33.4,31.6,30.6,28.2,28.4,29.6,31.4,32.4,32.1
1982,34.1,34.6,33.5,32.9,31.4,29.9,28.6,27.6,29.5,30.9,31.6,32.4
1983,33.9,35.5,35.5,34.4,32.4,29.8,28.8,29.1,29.9,31.9,32.4,32.1
1984,33.4,35.5,33.7,33.5,32.8,31.8,29.5,29.6,30.1,30.3,32.5,31.9
1985,33.2,34.8,33.4,33.1,32.8,30.6,29.1,29,29.3,31.3,32.3,32.7
1986,34.5,35,33.3,33.8,33,31.1,28.8,28.7,29.8,30.4,31.4,31.7
1987,34,34.6,34.3,34.4,33.6,31.2,30.4,29.5,30.6,31.4,32.8,32
1988,33.9,36,34.1,33.9,33.4,31,29.3,28.6,29.9,31.9,32.2,32
1989,33.1,35.3,34.7,33.8,33.4,31.2,29.5,29.1,29.5,30.5,32.9,31.7
1990,32.8,34.6,35.6,33.6,33,30.5,29,28,30,31.4,31.9,32.4
1991,33.3,34.5,33.9,32.7,31.6,31.3,29.3,28.4,29.7,30,31.2,31.2
1992,32.5,35.3,34.3,33.1,32.8,30.3,28.8,28.1,29.8,31,31.1,32
1993,32.7,34.3,33.2,33.4,32.3,30.7,29.3,28.7,30.2,31.4,32.1,32.1
1994,32.8,35,34.1,33.1,32.1,30.6,28.7,28.5,29.8,30.3,31.9,31.8
1995,34,35.8,33.8,33.6,32.9,31.5,29.7,29.4,30.2,31.3,32.3,32.2
1996,32.2,34.2,33.9,33.3,33.2,30.9,29.4,28.5,29.6,30.5,32.4,32.8
1997,34.2,34.5,34.6,32.9,32.5,30.1,29,28.8,30.7,31.7,32.3,32.3
1998,34,36.2,35.7,34.8,33.5,31.6,29.8,28.7,30.2,31.2,32.8,33.1
1999,33.4,34.3,34.6,33.5,32.7,31.7,29.4,29,29.4,30.2,31.1,32
2000,33.6,34.3,35.2,33.5,33.3,31,29.1,29.4,30,31.1,32.9,32.4
2001,32.5,35.1,34.1,33.1,32.6,30.6,29.4,28.8,29.7,31.4,32.9,31.8
2002,34,33.8,33.4,33.3,33.3,31.4,29.4,28.6,29.9,31,31.4,32.6
2003,32.8,35.1,34.1,33.1,33.1,30.6,29.8,29.7,30.2,31.8,31.9,31.6
2004,33.4,34.6,34.3,33.1,32,30.2,29.1,29,30.2,31.7,32.6,32.6
2005,32.9,35.4,34.4,33.6,32.7,30.9,29.5,29,30.9,31.5,32.7,33
2006,31.7,34.6,33.6,34.3,31.1,32.2,30.2,29.6,30.1,32.4,30.9,32
2007,33,36.5,35.5,33.8,33.5,31.1,30.1,28.9,30.7,31.3,32.1,33.1
2008,31.9,34.3,34,33.9,32.7,31,29.5,29,30.1,31,31.2,31.9
2009,32.7,34.6,33.6,33.7,33.2,31.1,29.9,28.8,30,30.7,32.6,31.5
