1901,31.7,33.9,32.5,32,31.3,29.7,28.2,28.3,29,30.3,31.9,32.4
1902,32.3,33.4,33.1,32.6,31.3,29.7,28.2,28.3,29,30.3,31.9,32.4
1903,32.9,34.2,33.5,32.5,31.2,29.4,28.2,28.4,29.1,30.4,31.9,32.2
1904,32.9,34,33.3,32.3,31.2,29.4,28.2,27.9,28.8,30.3,31.7,32.3
1905,32.2,32.7,33,32.4,31.5,29.1,28.2,28.2,29.1,30.2,32.5,32.9
1906,32.5,33.9,33.8,34.2,31.5,30.1,28.3,28.1,29.8,30.7,32.3,32.9
1907,32.5,33.4,33.6,32.4,32,29.7,28.4,28.6,29.2,31.1,32.2,31.9
1908,32.3,33.4,33.4,32.7,32.1,29.9,28.7,27.5,29.1,30.2,31.6,32.4
1909,33,34.8,35,32.9,31.2,29.4,27.8,27.9,29,29.7,32.2,32.7
1910,32.5,34.3,33,32.2,31.5,31.1,28.7,28.3,29.4,30.3,31.9,32.4
1911,32.4,34,33.9,32.6,31.3,29.3,28.2,28.1,28.9,30.3,32.4,32.2
1912,32.8,34.2,33.6,33.6,31.9,30.4,28.7,28.9,29.6,30.3,31.7,32.4
1913,32.5,33.8,32.4,32.3,31.6,30.5,29.2,29.4,30.1,30.3,31.9,32.4
1914,34.3,34,33.5,32.5,32.2,30.4,29.2,28.5,29.6,30.8,33.2,32.7
1915,32.8,34.2,33.6,32.5,31.3,29.7,28.2,28.3,28.8,30.1,31.7,32.1
1916,33,34.4,33.6,32.4,31.2,29.7,28.2,28.3,29,30.2,31.9,32.6
1917,32.7,34.2,33.6,32.5,31.4,29.8,28.2,28.3,29.1,30.4,32,32.5
1918,33.2,33.9,33.5,32.5,31.1,29.7,28.2,28.4,29.1,30.3,31.8,32.4
1919,32.8,34.2,33.7,32.5,31.3,29.8,28.4,28.3,29.1,30.4,31.6,32.4
1920,32.9,34.3,33.7,32.5,31.3,29.7,28.3,28.3,29,30.3,31.9,32.3
1921,32.4,34.2,33.7,32.6,31.4,29.8,28.3,28.3,29.1,30.3,31.9,32.6
1922,32.9,34.1,33.4,32.5,31.2,29.6,28.2,28.3,29,30.5,32.1,32.5
1923,33.1,33.7,32.9,31.4,30.8,29.5,27.5,27.8,28.9,30.3,31.5,32.9
1924,32,33.7,33.5,32.2,31.2,29.7,27.7,27.9,28.3,29.7,31.4,32.3
1925,31.8,33.7,33.3,32.3,30.4,28.9,27.9,27.7,28.4,29.8,31.2,31.7
1926,32.6,34.1,33.4,32,30.8,29.2,27.9,28.6,29.7,30.3,31.7,32.7
1927,32.8,34.2,32.6,32.2,30.9,29.7,27.7,27.7,28.4,29.6,31.9,32.9
1928,32.7,33.6,32.9,31.4,30.4,29.4,28.1,27.7,28.7,29.8,31.6,32
1929,33.1,33.5,32.5,30.9,30.8,29.9,28.8,27.7,28.7,29.5,30.7,31
1930,33.1,35.4,33.5,32.4,31.1,29.6,28.6,28.4,29.5,29.3,33.1,33.9
1931,33.1,34.7,33.1,33.4,31.5,29.7,29,28.5,28.6,30.6,32.7,33.6
1932,33.4,34.9,33.9,33.3,31.5,29.4,28.2,29.3,29.3,31.1,33.3,33.9
1933,34.4,35.6,34.6,33.1,30.7,29.9,28.5,28.2,29.5,30.1,33,33
1934,33.8,34.6,33.5,32.4,31,29.5,27.9,27.9,28.5,30.2,33.1,33.5
1935,34.2,35.6,35.2,33.1,31.1,29.2,28.1,27.9,28.6,29.8,31.7,32.4
1936,32.4,33.5,34.8,31.8,30.5,29.2,27.8,27.8,28.6,30.1,31.7,31.9
1937,33.3,34.7,34.4,32.9,31.9,30.3,28.8,28.1,29.4,31.5,32.9,33.7
1938,33.5,35.1,33.5,33.3,32.4,30.6,28.7,28.3,29.4,30.9,33.4,32
1939,33.6,35,34.4,31.6,31.5,30.1,28.8,28.5,28.9,30.4,32.3,33.3
1940,32.7,34.2,33.8,32.6,31.4,29.7,28.3,28.3,29,30.3,31.8,32.5
1941,34.1,34.3,34.8,33.4,32.9,30.5,28.8,28.6,29.7,31.8,33.1,33.5
1942,33,35.2,34.2,33.2,31.6,30.7,28.4,28.1,29.7,30.6,32.7,33
1943,32.8,34.4,33.6,32.5,30.5,28.7,28,28.3,28.9,30.5,32.8,33.6
1944,32.5,34,33.8,32.2,32.7,30.1,28.7,28.1,29.7,30.8,32.3,33.3
1945,33.3,33.9,33.3,32.5,31.7,30.2,28.4,27.9,29.5,30.1,32.1,32
1946,33.6,34.2,34.1,33.2,31.2,29.4,28,27.9,28.6,28.5,32.1,32.1
1947,32.7,35.7,33.2,32.7,32.4,30.8,28.6,28.7,29.1,30.6,31.8,32.6
1948,32.8,34.8,33.1,31.8,30.7,28.9,27.9,28.1,29.2,30.5,31.9,32.6
1949,33.2,34,34.2,32.7,32.4,30.5,28.5,28.2,29.5,31.3,32.8,32.3
1950,33.4,33.5,33.1,32.5,31.9,30.7,27.8,27.8,29.1,29.8,31.6,32.5
1951,32.8,33.5,33,32.9,30.9,30.4,28.3,28.4,29.5,30.1,32.1,33.9
1952,33.4,34.4,33.2,32.5,31,30.2,28.2,28.1,28.8,30.2,31.4,32.5
1953,32.8,33.4,32.6,33.2,30.9,29.3,28,27.9,29,29.9,31.8,32.4
1954,32.4,33.3,32.5,32,31.1,29.3,27.6,27.5,28.9,29.9,31.9,33
1955,31.8,34.3,32.5,32,30.9,29.2,27.7,27.9,28.7,29.6,31.9,32
1956,32.3,33.5,32.5,32.4,31.2,29.3,27.5,27.6,28.7,30.3,31.5,32.2
1957,31.8,33.8,32.9,32.4,31.1,29.5,28.4,28.5,29,29.7,31.4,32.8
1958,32.9,33.7,33.7,32.7,30.7,29.3,27.7,28.4,28.7,30,31.6,33.1
1959,32.5,33.8,33.1,32.9,30.8,29.6,28.5,28.6,28.6,30.3,31.7,33.1
1960,32.6,34.1,33,31.8,31.1,29.7,28.2,29,29,30.2,31.4,33.1
1961,32.2,34.2,34.3,32.5,31.4,29.4,27.2,28.2,28.6,30.2,32,32.4
1962,33.2,34.3,32.7,32.4,31.1,29.1,28.1,28.2,28.3,29.9,30.9,32.1
1963,32.1,33.2,32.8,32.4,31.1,30.9,28.9,29,29.9,30.5,32.2,32.6
1964,32.8,34.6,33.9,32.8,30.9,29.8,27.8,27.5,28.1,29.8,31.5,31.7
1965,31.8,32.8,33.6,32.5,31.5,29.2,28.4,28.5,28.9,30.6,31.8,32.1
1966,32.9,34.4,33.6,32.7,30.9,29.9,29.3,28.4,28.8,30.6,31.7,32.1
1967,33.3,34.4,33.5,31.9,30.3,28.9,27.5,27.8,28.6,29.7,31.4,32.1
1968,31.8,33.5,32,32.5,31.2,29.4,29,29.7,29.3,30.6,31.7,32.6
1969,33.1,35.2,33.1,33.4,31.8,30.8,28.5,28.7,28.6,30.7,31.7,32.6
1970,31.9,34.2,33.9,33.1,31.2,30.2,27.9,28.4,28.9,30.5,32.7,32.7
1971,32.1,32.9,32.8,32.1,31.6,29.6,27.8,27.4,28,29.8,31.6,32
1972,33,33.6,33.1,31.4,30.8,29.5,28.6,28,29.1,30.4,32.3,32.5
1973,33.2,34.7,33.6,33.1,31.7,30.4,29.1,28.3,28.9,30.2,32,32
1974,32,33.2,33.1,31.7,30.7,29.3,27.9,28.2,28.2,29.3,31.6,32.2
1975,33.5,33.2,32.5,32.1,30.9,29.4,27.9,26.9,27.8,29.8,31.1,32.2
1976,31.9,32.4,32.1,31.5,31,28.5,27.7,27.1,29.4,29,30.2,31.9
1977,31.6,33.7,34.4,32.9,31.7,29.2,27.8,27.8,28.4,30.1,31.8,32.3
1978,33.8,34.2,32.7,31.4,30.6,29.2,27.5,28.1,29.1,29.8,31.5,32.7
1979,32.6,33.9,33.9,32.6,30.7,29.2,28,27.9,28.7,30.3,31.2,32.6
1980,32.7,34,33.4,32.9,30.8,30.3,28,28.3,29.2,29.8,31.6,31.3
1981,32,34.5,33.8,33.1,31.8,30.5,27.6,28.3,29.3,30.5,31.9,32.8
1982,32.8,34,33.5,32.7,31.3,28.8,27.1,27.6,28.8,30.1,31.4,32.5
1983,33.1,36.2,35.8,33.9,31.6,29.1,27.7,27.9,29,30.5,31.6,31.5
1984,34,34.6,33.6,32.3,30.8,29.7,29.4,29.3,29.2,30.3,31.5,32.3
1985,32.8,35.2,33.7,32.7,30.8,29.7,28.5,28.9,29.7,31.5,32.3,32.4
1986,32.8,34.3,32.7,33,32.4,29.6,27,27.8,29,29.7,31.6,32.6
1987,33.8,35,33.6,34.2,32.5,30.8,29.5,29.7,30.2,30.6,33.1,33.4
1988,33.4,34.6,33.7,32.7,31.7,29.5,28.4,28.2,29.1,31.5,33,31.9
1989,33.9,35.2,33.4,32.1,31.6,30.1,28.4,29,29.5,30.6,32.6,32.8
1990,32.4,34.4,36,32.5,31.4,30.7,27.7,27.8,29.5,30.6,32.2,32
1991,32.6,33.9,33.2,32,31,30.5,28.5,28.1,29.6,29.7,31.9,32.2
1992,33.1,35.8,34,33,31,29.5,27.7,27.9,28.4,29.9,32.1,33.3
1993,33.4,35.2,33.1,33,32,29.6,27.8,28.6,29.5,31.1,32.9,33.1
1994,32.7,33.8,33.7,32.2,31.5,30.1,28.1,28.2,29.1,30.1,32.1,32
1995,33.9,34.3,32.6,32.8,32.1,30.3,28.6,28.7,29.5,30.2,32.3,33.5
1996,32.1,34.5,33.3,32.6,30.9,30.1,29.1,28.5,28.6,30.3,31.9,32.6
1997,33,35.4,32.7,31.2,31.3,29.6,27.3,28.6,30.4,31.6,32.6,32.9
1998,33.6,36.1,35.9,33.7,31.9,31.3,28.5,28.2,29.8,31.3,32.7,33.4
1999,32.8,34.7,33,32.4,31.6,30.3,28.7,28.6,28.9,29.8,32.5,33.9
2000,33,34.3,34.6,32.8,32.1,30.2,28.4,27.9,29.8,31.2,32.9,33.8
2001,33.4,34.7,34,32.5,31.5,29.8,28.7,27.9,28.4,30.5,33,33.6
2002,32.6,34.8,33.6,32.4,31.9,30,28.9,28.8,29.2,29.8,32.7,33.2
2003,33,35.6,34.5,32.8,32.2,29.7,28.4,28.5,29.6,31.1,33,33
2004,32.8,34.2,34,32.2,30.9,29.7,27.8,28.4,29.5,30.8,32.5,33.6
2005,33,35.4,34.1,33.2,31.5,29.3,27.9,28.3,29.7,30.9,32.6,33.5
2006,33.7,34.9,33.8,33.2,31.6,30.8,29.1,28.7,29.2,30.8,32.3,32.7
2007,32.7,35,33.8,32.4,31.7,29.8,28.6,29.1,29.5,30.5,33,33.1
2008,32.1,34.5,33.6,32.8,31.5,30.1,28.5,28.6,29.6,30.9,33.1,33.6
2009,33.7,34.2,34.3,32.7,32,30.4,28.3,28.1,29.6,30.2,32.2,34
