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