1901,30.5,32.1,31.6,31.7,30.9,29.2,28.1,27.6,28.7,30,31.1,31
1902,30.7,31.9,31.9,32.4,31.2,29.4,28.2,27.3,28.5,30,31,31.1
1903,31.8,32.5,32.3,32.1,31.2,29.1,28.2,27.5,28.8,30.2,31.1,30.7
1904,31.7,32.4,32.2,31.9,31,28.8,28,27.2,28.3,29.9,30.6,30.8
1905,31.3,31.1,32,32,31.2,28.9,28,27.3,28.6,30.1,31.2,31.4
1906,32.3,32.3,32.5,33,31.6,29.8,28.1,27.4,28.5,29.7,30.6,30.4
1907,31.3,31.4,32.5,32,31.5,29.5,28.5,27.5,28.6,30.4,31.3,30.7
1908,31.1,31.7,32,32,31.1,29.9,28.6,27.2,28.5,29.7,30.9,31.6
1909,32.2,32.8,33.6,32,31.2,28.8,28.1,26.9,28.6,29.7,31.6,31.4
1910,32.5,32.8,32.3,32.3,31.7,30,28.3,27.5,28.5,29.7,31.1,31.2
1911,31.7,32.5,32.4,32.2,30.9,28.5,28,27.1,28.5,30,30.7,30.4
1912,30.9,31.9,32,32.2,31.5,29.4,28.2,27.7,28.5,29.6,30.1,31
1913,30.8,31.7,31.4,31.9,31.4,30.2,28.6,28.2,28.4,29.8,30.7,30.7
1914,32.5,32.2,31.9,31.9,31.7,29.5,28.5,27.5,28.2,29.7,30.7,30.6
1915,31.4,32.3,32.5,32.1,31,29.2,28.1,27.5,28.3,29.5,30.7,30.5
1916,32.1,32.7,32.3,31.5,30.9,29.1,28,27.4,28.3,29.6,30.7,31.4
1917,31.7,32.2,32,31.9,31.1,29.4,28.2,27.5,28.6,29.9,30.7,31.3
1918,32.3,31.3,31.9,31.8,30.5,29,27.9,27.4,28.8,29.8,30.8,30.8
1919,31.7,32.4,32.3,31.7,30.7,29.4,28.2,27.4,28.5,30.1,30.6,31.1
1920,32.1,32.6,32.6,31.9,31,29.1,28.1,27.4,28.4,29.8,30.9,30.9
1921,30.9,32.4,32.4,32,30.8,29.2,28.3,27.6,28.8,30,31,31.5
1922,32,32.3,32,31.7,30.9,29.2,28,27.3,28.2,30,31.2,31.1
1923,32.4,32,31.4,31.2,30.8,29.3,29.2,27.4,28.5,29.5,30.7,31.9
1924,31.8,33.5,33.1,30.8,30.4,29.2,27.8,28,30.5,29.6,31.2,30.8
1925,30.9,31.5,32.1,32.8,31.7,29.1,28.3,27.1,28,29.1,29.8,30
1926,31.2,34.3,33.9,33.1,31.1,29,27.7,28.3,29.3,31.5,31.3,31.2
1927,32.3,33.4,31.3,31.9,31,28.2,28,27,29,29.7,31,30.7
1928,32.6,31.6,31.8,30.7,29.4,29.5,28.6,27.1,28,28.8,30.4,30.7
1929,32.2,32.3,32.1,32.1,30.7,28.5,27.8,27.3,28.4,29.7,30.9,30.2
1930,31,32.6,31.9,31.8,31.1,29,27.9,27.1,28.5,29.6,30.6,31.6
1931,31,32.1,32.7,32.1,31.1,29.9,28.4,27.9,28.3,30.2,31.3,31.9
1932,32.6,33.2,32.4,32.3,31.4,29.2,27.6,28.1,28.2,30.4,31.8,31.4
1933,32.3,33,31.6,31.9,31,29.1,28.8,27.6,28.7,29.8,31.7,31.5
1934,32.2,32.4,32,31.9,30.9,28.5,28.2,28.7,30,30.6,31.4,31.3
1935,32.8,33.3,32.7,32.2,31.1,28.9,28,27.1,29.1,29.5,30.8,31.5
1936,32,33.5,32.5,31.7,30.7,29,28,27.6,28.6,30.4,31.7,31
1937,33,33.3,33,32.6,31.4,29.5,28.4,27.8,28.9,30.2,31.4,32.2
1938,32,33.4,32.4,32.5,31.4,29.7,28.2,27.3,28.6,30.5,31.4,31.7
1939,32.1,32.6,32.1,32.4,31.3,29.4,28.9,28,28.5,29.9,31.2,31.2
1940,31.4,31.9,32.6,32.3,31.6,29.5,28.2,27.7,28.7,29.9,30.8,31.3
1941,32.1,33.6,33.5,32.4,31.1,29.9,28.5,28.6,30.1,30.8,30.8,31.1
1942,31.6,33.2,33.3,32.4,31,29.1,28,27.5,30,30,30.8,30.8
1943,31.7,32.8,31.9,32,30.2,29,27.5,27.2,28.9,30.1,30.2,30.9
1944,31.1,32.4,31.9,32.4,32.3,29.6,28.6,28.3,29.3,30.7,31.6,31.4
1945,31.9,32.8,32.6,32.3,31.5,29.4,28,28.1,29.4,29.8,31.1,31.6
1946,31.9,33.1,32.9,32.4,31.1,28.4,28,27.1,28.7,29.3,30.9,31.2
1947,31.9,32.1,32.4,31.3,31.3,29.1,28.2,28,28.8,29.7,30.2,30.5
1948,31.8,31.7,33,31.5,30.5,28.5,28,27.7,28.6,30.1,30.2,30.9
1949,31.9,32.8,32.3,31.8,30.9,29.3,28.7,27.9,29.2,30.1,30.5,31.2
1950,31.8,33,32.7,31.5,30.9,28.8,28.3,27.5,28.4,29.3,30.6,30.4
1951,32,31.9,32.4,32.9,31.1,29.6,29,27.9,29.6,30,31.4,32.6
1952,32.7,33.4,33,33,31.3,29.6,28.9,27.6,29.4,30.3,31.1,31.3
1953,31.1,31.9,32.2,33.1,31.5,29.2,28.9,27.8,29.7,31,32,31.9
1954,31.4,32.6,32.4,32.1,31.6,28.7,27.8,27.7,29,30.1,31.2,31
1955,31.1,32.2,31.4,31.8,30.8,29,28.2,27.3,28.6,29.9,30.8,30.3
1956,30.9,30.9,31.6,31.9,30.6,28.8,27.8,27.1,28.9,29.7,30.8,30.8
1957,30.7,32,32.1,32.3,30.7,28.8,27.8,27.6,28.7,29.5,30.6,31.5
1958,32.5,32.5,32.5,31.8,30.6,28.3,27,26.9,28.1,29.9,30.4,30.8
1959,31.9,32.2,32.3,32.6,30.7,29.5,28.2,27.4,28.4,30.1,31,30.6
1960,31.4,32.5,31.6,31.1,31.2,29.1,28.5,27.6,28.8,30,31,30.7
1961,31.5,32.8,32.9,32,31.8,29.5,27.9,27.3,28.1,29.9,31.2,30.8
1962,32,32.5,31.3,32,31,28.7,28.6,27.1,28.5,30,30.3,31
1963,31.6,32.2,32.7,31.8,31.3,29.7,28.6,29.1,30.1,30.3,31.3,31
1964,31.1,33,32.1,31.8,30.4,28.7,28.4,27.8,28.2,28.7,29.8,29.8
1965,29.9,30.7,32,31.1,30.7,29.1,27,27,28.8,30,30.9,30.2
1966,31.3,32.4,32.6,31.7,31.4,29.3,29.2,28.1,28.8,29.8,31.3,31.4
1967,31.9,32.4,31.9,31.9,31,29.3,28,27,28.4,29.3,30.8,30.4
1968,30.9,31.5,31.6,31.8,31.1,29,28.8,28.6,29.6,30.8,30.5,30.8
1969,31.7,33.2,33.2,32.7,31.5,29.1,27.9,27.7,28.5,29.6,30.6,31.3
1970,31.7,32.9,32.5,32.4,31.1,29.5,28,27.8,28.9,30.3,30.8,31.2
1971,31.3,31.1,31.5,31.8,30.8,29,28.6,26.8,27.6,29.1,30.2,30.1
1972,30.8,31.6,31.4,31.3,30.3,28.9,27.9,26.4,27.7,29.6,30.6,31
1973,31.6,32.7,32.6,32,31.6,29.1,28.5,27.6,28.5,29.8,31.6,31
1974,31.2,31.7,31.6,31.6,31,29.3,28.5,28.1,27.9,29.1,30.6,30.5
1975,31.9,32.2,32.2,31.4,30.6,29.5,28.6,27,28.2,28.9,30.5,31
1976,31.1,31.1,32.2,31.6,30.2,27.9,27.1,26.7,27.5,28.4,29.7,30.4
1977,30.6,32.1,32,32.1,31.1,28.5,27.7,26.6,28.5,29.6,31.2,30.2
1978,31.8,31.8,31.5,31.2,30.7,28.3,27.3,27.1,27.9,29,30.7,30.7
1979,31.5,31.7,32.2,32.4,31,28.8,27.9,27.6,29.1,30.1,31,30.8
1980,31,31.6,31.8,32.3,30.4,28.8,27.4,27.7,28.6,29.6,30.8,30.7
1981,31.2,32,32.4,32.3,30.4,29.4,27.6,27.6,28.9,30.3,31.5,31.2
1982,32.1,32.1,31.5,32,30.5,28.8,27.1,26.5,28.2,29.5,30.6,30.6
1983,31.4,33,33.3,32.9,31.2,28.6,27.4,27.9,28.9,30.8,31.3,31.1
1984,32.2,32.9,31.9,32,31.3,30.3,27.8,28,29,30,31.5,30.8
1985,31.5,32.5,31.7,31.9,31.1,29.1,27.9,27.8,28.4,30.5,31.4,31.4
1986,31.7,32.6,31.6,32.6,31.6,29.5,27.9,27.4,28.7,29.4,30.3,30.9
1987,31.9,31.7,32.5,32.9,31.9,29.5,29,28.3,29.1,30.3,32.2,31.5
1988,31.9,33.6,32.6,33.3,32.3,29.8,29.2,27.9,28.8,31.1,32,30.8
1989,31.6,33.5,32.5,32.6,32,30,29,28.4,28.5,29.9,31.9,31.4
1990,31.2,32.2,33.5,32.3,31.3,29.2,27.8,27,28.8,30.9,31.1,31.2
1991,32.2,32.4,32.4,31.5,30.7,30.1,29,27.3,28.5,28.7,30.5,31.2
1992,31.6,32.8,32.1,31.9,31.1,29,27.3,27,28.9,30.2,30.3,31.2
1993,31.1,32.6,31.5,32.2,31.8,29.4,28,27.1,29.2,30.5,30.9,31.3
1994,31.5,33,32.5,32.1,31,29.4,27.2,27.2,28.5,29.7,30.9,31.3
1995,31.9,33.1,32.6,32.7,31.7,30.2,28.8,28.2,28.9,30.1,31.4,31.1
1996,30.8,31.7,32.4,32.5,31.7,29.8,28.7,28,28.5,29.6,31.9,30.6
1997,31.4,32.6,32.1,31.8,30.9,29,28,27.4,29.5,31,31.6,31.7
1998,32.1,34,33.5,33.2,32,30.2,28.5,27.5,28.9,30.6,31.9,32.3
1999,32,32.5,32.6,32.5,31.6,30.3,28.9,28.1,28.3,30,31.3,31.3
2000,31.8,32.3,33.2,31.5,32.1,29.7,28.3,28.6,28.7,29.9,31.8,32
2001,30.9,32.3,32.3,32.8,31.1,29.4,28.2,27.7,28.5,30.7,31.7,30.4
2002,32.6,31.5,32.3,32.2,31.9,29.7,28.3,27.6,28.7,29.9,30.6,31.6
2003,31,32.7,31.9,32,31.7,29.4,28.6,28.4,28.8,30.9,31.1,31.4
2004,31.9,32.3,33.4,31.7,30.9,28.9,28.3,27.4,28.6,30.4,31.2,31.7
2005,31.5,33.1,32.7,32.5,31.1,29.3,28.3,27.6,29.6,31,31.6,31.9
2006,30.4,32.4,32.4,33.3,31,30.8,28.7,28,28.9,31,29.9,31
2007,30.4,34,33.2,32,32.1,29.3,29,27.8,29.4,30.2,31,32.4
2008,30.3,31.9,32,32.5,31.2,29.6,28.4,27.9,28.9,29.9,30.1,30.7
2009,31.1,32.5,31.9,32.1,31.6,29.7,28.5,27.8,28.8,29.5,31.8,30.3
