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