1901,31.7,33.7,33.3,32.3,31.2,30,28.4,28.3,29.6,30.5,31.2,31.3
1902,32.5,33.3,33,32.5,31.6,30.5,28.6,28.2,29.2,30.5,30.9,31.3
1903,32.7,33.7,33.7,32.6,31.7,29.9,28.3,28,29.6,30.6,31.1,31.1
1904,32.4,33.5,33.1,32.1,31.4,29.8,28,27.9,29.2,30.3,30.9,31.1
1905,32.5,32.9,33.3,32.5,31.7,29.6,28.2,28.1,29.2,30.6,31.2,31.6
1906,32.9,33.9,34,33.4,31.7,30.3,28.2,28.1,29.3,30.1,30.8,30.7
1907,32.5,32.9,33.6,32.3,31.8,30.2,28.6,28.3,29.4,30.8,31.2,30.9
1908,32.4,33.2,33.2,32.6,31.3,30.2,28.4,27.9,29.1,30.1,30.9,31.5
1909,32.8,34,34.3,32.3,31.3,29.6,28.1,27.8,29.5,30.2,31.3,31.4
1910,32.5,34,33.6,32.9,31.9,30.9,28.3,28.1,29.3,30.2,31,31.5
1911,32.9,33.8,33.6,32.7,31.3,29.3,28.1,27.7,29.4,30.4,30.7,30.6
1912,32.4,33.4,33.5,32.8,32.1,30.3,28.5,28.3,29.3,30.2,30.4,31.3
1913,32.5,33,32.5,32.4,31.7,31.2,28.8,28.7,29.4,30.2,30.5,30.6
1914,33.1,33.4,33,32.3,32,30.4,28.5,28,29,30.3,30.8,30.9
1915,32.2,33.5,33.8,32.7,31.4,30.1,28.3,28.3,29.3,30.2,30.9,30.9
1916,32.9,33.7,33.6,32,31.3,29.9,28,28,29,30,30.6,31.2
1917,32.8,33.1,33,32.3,31.3,29.9,28.5,28.1,29,30.2,30.3,31.1
1918,32.7,32.7,32.9,31.9,30.9,29.6,27.8,27.7,29.5,30.2,30.9,30.8
1919,32.6,33.7,33,31.7,30.7,29.7,27.9,27.9,29,30.3,30.9,31.4
1920,32.9,33.8,33.3,32,31.2,29.9,28,27.9,29.1,30.1,30.7,31.1
1921,32,33.5,33.3,32,30.7,29.3,28.3,28.2,29.5,30.6,30.8,31.3
1922,32.9,33.6,33.4,31.8,31.2,29.9,28.2,27.7,28.8,30.1,30.8,30.9
1923,32.9,32.8,32.9,31.6,31.2,30,28.7,27.9,29.2,30,30.8,32
1924,32.7,33.9,34,31.8,30.9,29.6,27.8,28.1,29.9,29.8,30.7,29.9
1925,30.9,32.8,32.9,33.2,32.6,30.7,28.4,27.6,28.2,29.5,28.5,29.3
1926,32,34.6,34.3,32.9,31.2,28.6,27.3,28.6,29.7,31.1,30.7,31.1
1927,32.2,33.8,31.9,32,31,28.9,27.6,27.8,29.5,29.5,30.5,30.8
1928,32.5,32.5,32.7,31.7,30,29.8,28.3,27.3,28.5,28.6,29.9,30.8
1929,32,33.5,33.1,32.4,30.9,28.6,27.5,27.5,28.9,29.8,30.5,29.8
1930,31.4,33.8,32.3,31.9,31.1,28.8,27.7,27.2,29,29.6,29.9,31.6
1931,31.9,33,33.5,32.2,31,29.9,28.1,28,28.6,30.2,30.7,31.6
1932,32,34,33.3,32.6,31.4,30.1,27.5,28.5,29.2,30.5,31,30.1
1933,32.5,33.4,31.7,31.9,31.6,29.5,28.9,28.8,29.2,29.7,31.1,31.6
1934,31.8,32.5,32.7,32.6,31.1,29.6,28.3,28.8,30.2,30.4,31,31
1935,32.7,34.1,33.1,32.6,31,29.4,27.9,27.7,29.5,29.8,30.4,31.2
1936,32.4,34.5,33.5,32.1,30.7,29.4,27.7,27.9,29.2,30.6,31.3,31.2
1937,33.2,34.4,33.8,33,31.6,30.3,28.2,28.2,29.3,30.4,31.1,31.9
1938,32.6,34.6,33.3,32.8,31.5,30.2,28.2,27.7,29.2,30.8,31.2,31.8
1939,32.9,33.4,33.2,32.7,31.4,30.2,29,28.6,29.3,30.1,30.9,31.1
1940,32.2,32.6,33.2,32.6,32,30.3,28.4,28.4,29.6,30.2,30.6,30.9
1941,33.3,33.6,33.9,32.8,31.9,30.1,28.4,28.7,29.7,31.1,31.5,31.3
1942,31.9,33.2,33.7,33,31.6,29.9,28.1,27.3,29.9,30.5,31.4,30.8
1943,31.9,33.3,33.6,32.4,31.5,29.7,28.1,27.6,29.2,30.2,30.2,30.9
1944,31.9,33.2,32.8,32.5,32.2,30,28.8,28.6,29.3,30.4,31.9,31.8
1945,33.3,33.6,33.8,32.7,31.7,30.7,28.1,28.2,29.1,30.2,31.3,31.6
1946,32.7,33.2,34,32.6,32,29.6,28,27.7,28.7,29.8,31.5,31.6
1947,33,32.9,33.6,31.9,32.3,30,28.7,28.2,29.1,30.3,30.6,31.3
1948,32.3,33.1,33.7,32.1,31.7,29.4,28.2,28.2,28.9,30.6,30.7,31.5
1949,32.6,33.1,33.4,32.5,31.7,29.9,28.6,28.2,29.6,30.3,30.9,31.2
1950,32.4,33.6,33.4,32.2,31.6,29.7,28.2,27.9,28.8,29.5,30.9,31.2
1951,32.9,32,32.1,32.4,30.9,29.7,28.2,27.7,29.1,29.7,31,32.5
1952,33.7,34,33,32.1,30.8,29.7,27.2,26.8,28.6,29.6,30.6,31.9
1953,34.4,32.9,32.6,32.4,30.7,28.9,27.6,27,29.1,30.2,31,32.2
1954,34,33.6,32.6,31.5,30.7,28.9,27.3,26.7,29.1,29.3,30.6,32.3
1955,33.6,33.7,33.2,32.2,31.6,29.8,28,28.2,29.5,30.1,31.4,30.7
1956,32.7,33.5,32.7,31.8,31.4,29.9,27.2,27.7,29.8,30.3,30.8,30.7
1957,31.4,33.2,33.2,32.4,31.4,30.5,28.7,28.9,29.7,30.5,31.2,32.3
1958,34,33,33.8,32.4,32,29.8,27.7,28,29.6,31,30.9,31.3
1959,32.4,33.3,33.6,32.7,31.2,30.6,28.2,28,28.9,30.5,31,30.7
1960,33,33.9,33,31.4,31.7,29.7,28.4,28.7,29.9,30.4,30.7,31.3
1961,32.1,33.5,34.7,32.5,32.1,29.8,28,27.2,29.6,30.5,31.4,31.6
1962,33.2,32.9,32.9,32,31.2,29.1,28.4,27.8,29.2,30,30.4,29.9
1963,32.7,32.8,32.4,32.4,31.4,30.6,29.3,28.7,30.4,30.4,31.1,31
1964,32.3,33.2,33.8,32.5,31.1,29.7,28.2,27.5,29.1,29.7,30.9,31.4
1965,31.9,32.9,33.6,31.8,31.3,29.7,27.8,27.7,29.5,31,31.2,31.2
1966,32.6,33.1,34,32.1,31.5,30.1,29.1,28.5,29.4,30.1,30.9,31.1
1967,31.4,33.3,33.4,32.4,31.5,29.7,27.7,28.1,29.1,30.4,30.7,31.3
1968,32.1,32.6,32.8,31.8,30.9,30,28.8,29.1,29.9,30.5,31,31.8
1969,33,33.9,33.5,32.7,32,30.2,28.2,28.2,29.9,30.4,30.7,32.1
1970,33.2,34.2,34.1,32.8,31.4,30.4,28.5,28.8,29,30.9,31.2,31.2
1971,31.3,32.1,32.3,31.9,30.8,29.3,27.6,27.5,28.3,29.8,30.4,30
1972,31.8,33.1,32.6,31.6,30.6,29.2,28.5,27.9,29,30.1,30.9,30.9
1973,31.7,33.5,33.2,32.6,31.8,29.6,28.5,28.4,29.3,30.3,30.3,30.1
1974,31.2,32.8,32.6,31.9,30.9,30,28.1,28.1,28.8,30,30.4,30.6
1975,31.2,32.7,33,32.1,30.6,29.6,27.8,27.7,28.9,30,30.3,30.9
1976,31.6,32.3,32.2,31.6,30.4,28.8,27.5,27.4,29,28.8,29.8,30.1
1977,32.4,32.6,32.8,32.3,30.7,29.4,27.5,27.8,29.1,29.6,30.9,30.9
1978,32.7,33.4,32.5,31.1,30.5,29.1,27.3,28.3,28.9,29.7,30.4,30.7
1979,32.2,32.4,33,32.6,31.3,29.5,28.3,28.4,29.3,30.1,30.6,29.9
1980,32.7,32.7,32.5,32,30.8,29.7,27.9,28,29.3,30,30.4,31
1981,31.1,33.9,32.9,32.7,30.9,30.1,27.8,27.9,29.9,30.6,30.9,31.5
1982,31.3,32.8,30.7,32.2,30.8,29.3,27.9,27.4,29.7,29.9,30.6,29.7
1983,31.8,33.7,34.2,33.4,31.5,29.8,28.4,28.4,29.4,30.5,31.1,31.2
1984,32,32.5,32.9,32,31.2,30.1,28.2,28.9,29.6,30,30.9,30.8
1985,32.2,33.2,33.2,32.2,31.2,29.5,27.4,28.5,27.7,30.4,31.5,30.7
1986,32.1,33.4,32.7,32.6,31.3,29.8,27.3,28.1,29.4,30,29.9,29.2
1987,32.7,33.5,33.5,33.5,32.2,30.5,29.6,29.1,30,30.7,31.3,30.5
1988,32.1,34,34.8,32.7,31.9,30.2,28.7,28.2,29.3,30.7,30.7,29
1989,32,32.4,33.2,32.3,32,29.9,28.4,28.6,29.1,30.3,31.5,31.2
1990,31.9,32.7,34,32.3,31.7,30.5,27.6,28.6,29.7,30.3,31,30.4
1991,32.2,33,30.7,32,30.8,30.5,28.2,28.1,29.6,29.4,29.6,29.4
1992,31.3,33.4,33.2,32.3,31.2,29.8,27.9,29.6,29.2,30.1,29.8,31.4
1993,31.4,33.6,32.4,32.2,30.6,30.1,28.4,28.8,29.4,30.5,30.1,29.9
1994,32.1,33,33,32.5,31.5,30.1,27.9,28.4,29.6,29.6,30.2,29
1995,30.8,33,32.8,32.3,31.6,30.2,28.5,28.7,29.7,30.3,31,30.7
1996,32.8,33.1,32.7,32.5,31.6,30.1,28.5,28.6,29.5,29.9,30.3,30.7
1997,33.1,31.7,33.2,32.6,31.4,29.6,28.5,28.8,30.2,30.6,30.7,29.8
1998,32.2,34.6,35.5,33.5,32.2,30.7,29.2,28.2,29.7,30.3,31.5,30.3
1999,32.2,32.6,33.3,32.6,31.5,30.3,28.4,28.1,29.2,29.5,30.2,29.7
2000,32.8,32.4,33.8,32.5,31.6,29.9,28,28.5,29.6,30.1,31.2,30.4
2001,31.8,32.9,33.8,32.7,31.7,29.8,28.3,28.3,29.4,30.8,31,30
2002,32.1,33.5,33.5,32.4,32.3,30.4,29.1,28.5,29.7,30,30.1,31
2003,33.1,34.4,33.4,33,32.4,29.8,28.3,28.8,28.5,30.8,30.4,30.3
2004,33.2,33.8,33.6,32.3,31.8,29.7,28.7,28.6,29.7,31,31.4,31.4
2005,32.3,34.3,34,33.1,32,30.5,28.6,28.2,30.1,30.7,31.8,32
2006,32.1,34.1,33.5,32.8,31.3,31.1,29,28.9,29.8,30.3,31.2,31
2007,32.5,34.4,34.4,32.6,32,30.6,28.8,28.1,29.6,30.7,31.2,31.6
2008,31,33.6,33.5,32.5,31.5,30.1,27.9,28,29.3,29.7,31.3,31.1
2009,31.4,34.5,33.7,33,31.8,30.1,28.6,28.4,29.3,30.1,31.1,32.1
