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