1901,30.9,32.6,31.8,32,31.2,29.7,28.5,28.1,29,30.3,31.4,30.9
1902,30.3,32.3,32.3,32.8,31.6,29.3,28.5,27.8,28.9,29.9,31.4,31.3
1903,32.1,32.9,32.6,32.5,31.6,29.4,28.5,28.2,29.3,30.7,31.4,30.7
1904,32.3,32.9,32.7,32.4,31.5,29.1,28.4,27.6,28.5,30.2,30.9,31
1905,31.5,31.1,32.2,32.2,31.6,29.2,28.4,27.9,29,30.4,31.4,31.5
1906,32.9,32.6,32.7,33.7,32.2,30.3,28.6,27.9,28.9,29.9,30.7,30.4
1907,31.4,31.3,32.8,32.4,32.1,29.9,29,28.1,28.9,31,31.9,30.9
1908,31.1,31.8,32.2,32.4,31.7,30.5,29.1,27.9,28.9,30,31.1,31.8
1909,32.8,33.3,34.4,32.4,31.7,29.1,28.5,27.2,29,29.9,32.2,31.8
1910,33.4,33.3,32.5,32.5,32.3,30.6,28.7,27.9,28.7,29.9,31.4,31.4
1911,31.9,32.8,32.7,32.5,31.4,28.9,28.3,27.6,28.8,30.2,30.8,30.2
1912,30.8,32,32.1,32.6,31.8,29.8,28.6,28.4,29,29.7,29.9,31.1
1913,30.7,32,31.7,32.2,32,30.7,29,29,28.9,30.1,30.8,30.9
1914,33.1,32.6,32.2,32.3,32.3,29.9,29,28.3,28.4,29.8,30.9,30.4
1915,31.5,32.4,32.8,32.1,31.5,29.3,28.4,28.1,28.4,29.5,30.7,30.2
1916,32.3,32.8,32.5,31.6,31.1,29.3,28.3,27.8,28.5,29.7,30.7,31.8
1917,32.1,32.8,32.1,32.1,31.6,29.8,28.5,28.1,28.9,30.1,30.8,31.5
1918,32.9,31,31.8,32.1,30.8,29.6,28.3,28,28.9,30,30.9,31.2
1919,32.2,32.8,33,32.3,31.4,30,28.8,28,29,30.6,30.8,31.4
1920,32.6,33.1,33.1,32.3,31.5,29.6,28.7,28,28.9,30.2,31.4,31.1
1921,31.1,32.9,33,32.7,31.6,29.9,28.7,28.2,29.2,30.3,31.3,32
1922,32.6,32.6,32.2,32.2,31.3,29.6,28.2,27.8,28.4,30.5,31.6,31.4
1923,33,32.5,31.7,31.4,31.3,29.7,29.3,27.9,28.8,29.9,31,32.2
1924,32.1,34.1,33.7,31.5,30.8,29.6,28.1,28.6,30.8,29.9,31.9,31.6
1925,31.8,32.1,32.7,33.2,31.6,28.8,28.8,27.8,28.7,29.6,30.9,30.6
1926,31.7,34.8,34.1,33.1,31.6,30,28.3,28.9,29.8,31.9,31.7,31.6
1927,33.3,33.9,31.8,32.4,31.6,29.1,28.5,27.5,29.3,30.3,31.6,31.2
1928,33.4,32.1,32.2,31.1,29.9,30,29,27.8,28.5,29.4,30.9,31
1929,33.3,32.8,32.3,32.2,31.3,29.5,28.5,28.2,29.3,30.1,31.4,30.6
1930,31.8,33,33.1,32.2,31.1,30,28.5,28.1,29.2,30,31.5,32.1
1931,31.7,33.1,33.1,32.6,31.8,30.4,29.2,28.7,28.9,30.7,32.2,32.7
1932,34.1,33.9,32.8,32.9,32,29.5,28.2,28.9,28.5,31.1,33,32.7
1933,33.6,34.4,32.9,32.6,31.1,29.8,29.1,28,29.3,30.1,32.6,31.7
1934,33.5,33.4,32.5,32.3,31.5,29,28.5,29.1,30.2,31.2,31.9,32
1935,33.9,34,33.8,32.8,31.6,29.4,28.5,27.7,29.5,29.9,31.4,31.9
1936,32.5,33.9,33.1,32,31.1,29.5,28.6,28.2,29,30.9,32.3,31.2
1937,33.9,33.9,33.7,33.2,32.1,30.1,29,28.7,29.5,30.8,32.1,33
1938,32.6,34.3,33,33.1,32.2,30.5,28.7,28.2,29.3,31.1,32.1,32.3
1939,32.7,33.2,32.7,33.2,32.1,29.9,29.4,28.7,28.9,30.4,32,31.8
1940,31.9,32.7,33.2,32.9,31.9,29.9,28.6,28.2,29,30.2,31.2,31.6
1941,32.4,34.4,34.4,33,31.6,30.5,29.1,29.3,30.8,31.4,31.2,31.5
1942,32.4,34.1,34,32.9,31.5,29.7,28.4,28.3,30.6,30.3,31.1,31.4
1943,32.6,33.8,32.1,32.3,30.3,29.3,27.9,27.9,29.2,30.5,30.5,31.6
1944,31.7,33.1,32.5,32.8,32.9,30.1,28.9,28.9,30,31.3,32,31.8
1945,32.3,33.6,33.1,32.8,31.9,29.8,28.4,28.8,30.1,30.1,31.5,31.9
1946,32.6,33.8,33.4,33,31.5,28.7,28.4,27.6,29.3,29.6,31.2,31.3
1947,32.4,33.1,32.9,31.9,31.6,29.9,28.5,28.8,29.4,30.2,30.6,30.9
1948,32.6,32.5,33.5,31.9,30.7,28.8,28.4,28.2,29.1,30.6,30.6,31.1
1949,32.6,33.7,33,32.2,31.2,29.9,29,28.2,29.7,30.7,30.9,31.4
1950,32.4,33.8,33.2,31.9,31.4,29.3,28.6,27.9,29,29.8,30.8,30.6
1951,31.2,32.8,31.7,33.4,31.5,30.1,28.2,28.4,28.6,28.8,30.4,31.5
1952,32.1,32.5,31.9,32.9,31.6,29.9,27.6,28,28.1,29.4,30.2,30.6
1953,30.6,31.4,31.7,33.3,31.7,29.6,28,28.3,28.5,29.8,31.3,31.6
1954,30.9,31.5,31.8,32,31.9,29.1,27,28.2,28.3,29.6,31.1,30.9
1955,30.5,31.7,31.2,32,31.2,29.3,27.4,27.5,28.1,29.2,31.1,30.3
1956,31.4,31.9,31.2,32.3,31,29.1,26.9,27.2,29.2,29.7,30.6,30.8
1957,30.8,32.5,32.6,32.5,31.1,29.2,27.9,28,28.3,29.1,30.6,31.2
1958,32.4,32.7,32.7,32.2,30.9,28.6,27.3,27.4,28.2,30.1,30.6,30.7
1959,32.4,32.6,32.7,32.8,31,29.8,28.5,27.6,28.9,30.5,31.2,30.9
1960,31.7,32.9,32,31.5,31.5,29.5,28.8,27.9,28.9,29.8,31.5,30.7
1961,31.8,33,32.6,32.2,32,29.5,27.7,27.6,27.9,30.1,30.9,30.8
1962,31.9,32.3,31.6,32.2,31.3,28.9,28.8,27.4,28.3,29.8,30.6,31.2
1963,31.9,32.3,33,32,31.6,30.3,29.2,29.5,29.8,30.8,31.9,31.5
1964,32.2,33.9,32.9,32.2,30.7,28.8,28.2,28.3,28.5,29.1,30.6,30
1965,32.1,31.9,32.7,31.5,31,29.4,27.8,27.6,28.7,29.8,31.3,31
1966,31.4,32.8,32.8,32.2,31.8,29.9,29,28.8,28.7,30.7,31.6,31.7
1967,32.1,33.2,32.3,32.3,31.3,29.6,27.4,27.7,28.3,29.5,30.7,30.7
1968,30.8,31.5,31.8,31.9,31.4,29.4,28.6,29.4,29.5,31.5,30.9,31.1
1969,31.6,33.3,32.4,33.2,32.1,29.4,27.8,28.2,28.2,29.2,30.6,31.2
1970,31.5,32.5,32.3,32.6,31.4,29.7,28,28.1,28.9,30.4,31,31.1
1971,31.1,31.1,31.4,32.2,31.3,29.4,28.3,27.1,28.1,29.6,30.4,30.2
1972,30.7,31.7,31.7,31.7,30.8,29.5,28.1,26.7,28.3,29.9,30.7,31
1973,31.8,33,32.7,32.5,32.1,29.6,28.9,28,28.8,29.9,31.9,31.1
1974,31.8,32.5,32.5,32.1,31.4,29.7,28.9,28.8,28.9,30.4,32,30.8
1975,32.3,32.8,32.6,32,31.2,29.9,28.9,27.4,28.5,30,31.1,31.1
1976,32,32.2,32.6,32.1,30.7,28.3,27.7,27.3,28.6,28.7,30.3,31.1
1977,31.7,32.8,32.9,32.3,31.7,28.9,28.5,27,29.1,30.3,31.7,31.1
1978,32,32.5,32,31.8,31.2,28.8,28.2,27.7,29,29.7,31.3,31.1
1979,32.3,32.9,33.2,32.9,31.6,29.1,28.7,28.3,29.5,30.4,31.6,31.7
1980,32,32.6,32.6,32.8,30.8,29.4,28.3,28.4,29.6,30.2,31,31
1981,32.3,32.6,32.8,32.8,30.9,29.8,27.8,28.4,28.9,30.8,32.1,31.6
1982,32.7,33.2,33,32.6,31,29.3,27.9,27.1,28.8,30.1,31,31.2
1983,32.1,33.8,33.9,33.4,31.8,29,28.6,28.6,29.4,31,31.9,31.4
1984,33,33.5,33.3,32.6,31.9,30.9,28.2,28.7,29.1,30.9,32.2,30.8
1985,32.4,33.1,32.1,32.3,31.6,29.6,28.2,28.4,29,31,31.7,31.6
1986,32.7,33.2,32.3,33.1,32.4,30,28.2,27.7,29,30,30.7,31.4
1987,32.5,32.3,33.1,33.3,32.5,30,29.4,28.9,29.4,30.7,32.9,31.9
1988,33.1,34.5,33.9,33.7,32.9,30.3,29.8,28.8,29.2,31.8,32.7,31.3
1989,32.2,34.3,33.2,33.1,32.5,30.6,29.6,29,29.2,30.6,32.5,32.1
1990,31.9,33.7,33.7,33,32.1,29.8,28.7,27.4,29.6,31.3,31.4,31.8
1991,32.5,33.1,33.4,31.7,31.2,30.6,29.2,27.9,29.2,29.6,31.2,31.3
1992,32.1,33.8,33.3,32.5,31.9,29.5,28.3,27.5,29.2,30.6,31.2,31.5
1993,31.6,32.2,32.4,32.8,32.6,29.8,28.9,27.7,29.5,31.2,31.9,32.2
1994,31.6,33.7,33.4,32.5,31.4,29.8,28.4,27.8,29,30.3,31.9,32.2
1995,33.1,34.3,33.3,33.4,32.4,30.7,29.4,28.8,30,31,32.6,31.6
1996,31.2,33.2,33.3,33,32.4,30.2,29.2,28.6,29.4,30.7,32.3,32.1
1997,33.1,33.3,32.6,32.2,31.4,29.3,28.9,27.9,30.2,31.5,31.9,32
1998,32.4,34.6,34.2,33.7,32.5,30.8,29.4,28,29.5,30.9,32.4,32.9
1999,31.5,33.4,33.7,33.1,32.2,30.9,29.1,28.7,29.2,30.3,31.4,32
2000,32.5,33,33.3,31.9,32.9,30.1,28.8,29.3,29.9,30.9,32.7,32.2
2001,32.1,33.1,33.1,33.3,31.7,29.8,28.6,28.2,29,31.1,32.5,31.5
2002,33,32.6,32.9,32.7,32.5,30.3,28.8,28.1,29,30.3,31.4,32
2003,31.9,33.2,32.9,32.4,32.3,29.7,28.8,29,29.4,31.1,31.9,32.1
2004,32.5,32.8,34,32.1,31.4,29.5,28.7,27.9,29,30.8,31.7,32
2005,32.5,33.6,32.7,32.9,31.5,29.7,28.5,28.2,29.7,31.2,32.2,32.4
2006,30.3,32.9,33.1,34,31.4,31.3,29.1,28.5,29.6,31.5,30.8,31.5
2007,30.8,34.6,33.4,32.4,32.5,29.6,29.4,28.7,29.9,30.7,31.6,32.7
2008,31.2,32.8,32.7,32.8,31.9,30.1,28.9,28.7,29.5,30.5,31.1,31.4
2009,32.4,33.2,32.6,32.5,32.4,30.3,28.9,28.2,29.3,30.1,32.6,31.1
