1901,30.7,33.2,32,31.5,30.4,29,27.9,27.7,28.5,29.7,31.4,30.7
1902,30.3,32.8,32.6,32.4,30.9,28.5,27.9,27.5,28.4,29.2,31.4,31.2
1903,32.1,33.5,33,32.1,30.8,28.8,27.9,27.8,28.8,30,31.4,30.7
1904,32.3,33.5,33.2,32,30.8,28.5,27.9,27.2,28.1,29.7,31,30.9
1905,31.1,31.2,32.1,31.4,30.8,28.4,28,27.4,28.9,29.5,32.3,32.1
1906,32.6,33,33.1,33.8,31.5,29.9,28.1,27.5,29.7,30.2,31.8,31.8
1907,31.7,32.3,33.2,31.9,31.7,29.3,28.3,27.8,29,31,32.1,30.6
1908,31.3,32.5,32.8,32.1,31.9,30.2,28.8,27.3,28.8,29.5,31.4,31.6
1909,32.8,34.4,35.3,32.4,30.8,28.3,27.6,26.5,28.5,28.9,32.3,31.9
1910,33.1,34.2,33.2,32.4,31.6,30.5,28.5,27.7,29.1,30,31.4,31.2
1911,32,33.6,33.5,32.2,30.7,28.3,27.8,27.2,28.3,29.5,32.2,31
1912,31.3,32.7,32.4,32.7,31.2,29.3,28.7,28.4,29.4,29.8,30.9,31.2
1913,31,32.9,32,32.1,31.7,30.6,29.3,29.1,29.8,29.6,30.7,30.8
1914,33.9,33.3,33.1,31.8,31.9,29.9,29.3,28,29.2,30.4,33.2,31.9
1915,31.5,33,33.3,31.6,30.7,28.6,27.9,27.7,27.9,28.8,30.8,30.2
1916,32.1,33.3,32.9,31.2,30.3,28.6,27.9,27.3,28,28.9,30.6,31.7
1917,32,33.5,32.5,31.6,30.7,29.1,27.9,27.7,28.3,29.4,30.7,31.5
1918,32.8,31.5,32.1,31.6,30,29,27.9,27.4,28.3,29.4,30.9,31.2
1919,32.2,33.4,33.4,32,30.8,29.4,28.3,27.7,28.7,30,30.8,31.2
1920,32.6,33.7,33.6,32,30.8,29,28.2,27.7,28.5,29.7,31.5,31.1
1921,31.2,33.5,33.3,32.3,31,29.4,28.1,27.8,28.8,29.7,31.4,31.9
1922,32.4,33.3,32.7,32,30.6,28.9,27.7,27.3,27.9,29.8,31.6,31.3
1923,32.7,33,32.1,30.5,30.3,29,27.5,27.3,28.3,29.6,30.8,32.1
1924,31.1,32.8,33.2,31.7,30.6,29.3,27.3,27.6,28.6,29,31.1,31.5
1925,31.5,32.9,32.9,31.8,29.8,27.9,27.6,26.9,27.7,29,30.2,30.3
1926,31.8,34.1,33.1,31.4,30.2,28.7,27.5,28.3,29.4,30.3,31.3,31.6
1927,32.9,33.9,31.8,31.7,30.6,28.7,27.1,26.9,27.9,28.8,31.7,31.8
1928,32.7,32.7,32.4,30.6,29.4,29.1,28.1,27.1,28.1,28.9,31,30.7
1929,33.4,32.9,32,29.9,30,29.5,28.8,27.8,29.1,28.7,30.1,29.5
1930,33.4,35.6,33.7,31.7,30.1,29.1,28.6,28,29.2,28.4,33,33.3
1931,32.1,33.8,32.6,32.5,31.3,29.5,29,28.5,28.4,30,32.3,33.1
1932,33.9,34.8,33.4,33.1,31.2,28.8,27.8,29.1,28.7,30.8,33.6,33.5
1933,34.5,35.7,34.6,32.9,30.2,29.6,28.6,27.7,29.3,29.3,33.2,32.3
1934,34.2,34.3,33,31.8,30.5,28.9,27.7,27.6,28.6,30,32.6,32.7
1935,34.3,35.2,35.2,33,30.8,28.6,27.9,27.4,28.2,29.2,31.4,31.3
1936,31.9,32.3,33.9,31.2,29.7,28.5,27.5,27.4,28.1,29.7,31.3,30.9
1937,33.9,34.6,34.6,33.1,31.8,29.8,28.7,28.3,29.3,30.7,32.7,33.4
1938,33,35.4,33.5,33.1,32,30.3,28.5,27.9,29.1,30.9,32.8,32.4
1939,33.2,33.9,33.5,32.7,31.6,29.5,28.9,28.2,28.5,30.1,32.4,32.2
1940,32,33.5,33.7,32.3,31.1,29.2,27.9,27.8,28.5,29.7,31.3,31.7
1941,32.7,34.4,34.8,32.9,31.8,29.9,28.7,28.6,30,31.2,32.2,32.1
1942,32.4,34.7,34.1,32.6,31,29.7,28.2,27.6,29.9,30,32.1,32
1943,32.5,34.2,32.8,32,29.7,28.5,27.7,27.6,28.6,29.9,31.7,32.3
1944,31.7,33.5,33.1,31.8,32.5,29.4,28.5,27.9,29.3,30.6,32.2,32.1
1945,32.5,33.7,33.1,32.3,31.2,29.3,27.9,27.7,29.3,29.5,31.7,31.4
1946,32.8,33.9,33.8,32.7,30.9,28.4,27.8,27.2,28.4,28.1,31.6,31.2
1947,32.3,34.6,33,31.9,31.4,29.5,28.1,27.9,28.6,29.8,31.1,31.1
1948,32.5,33.8,33.2,31.1,30.1,27.8,27.5,27.5,28.7,30.1,31.1,31.2
1949,32.6,33.8,33.6,31.9,31.1,29.5,28.2,27.6,29,30.6,31.9,31.4
1950,32.6,33.7,33.1,31.9,31.1,29.2,27.7,27.2,28.5,29.2,31,31
1951,33.4,34.5,33.4,33.1,31.1,30.4,29.3,28.7,29.5,29.5,31.5,31.6
1952,33,33.9,33.5,32.6,30.6,29.3,27.8,27,28,29.1,31.1,31.8
1953,32,32.7,32.3,32.5,30.4,28.6,27.3,27.2,28.7,29.7,31.9,31.9
1954,32.1,33.2,33,31.6,30.8,28.3,27,27.1,28.6,29.2,31.9,32
1955,32.1,33.8,32.7,31.6,30.5,28.4,27.1,27.4,27.7,29,32,31
1956,32.3,33.4,32.2,31.9,30.9,28.3,26.9,27.3,28.4,29.3,30.9,30
1957,31.3,33.3,32.8,31.7,30.1,28.6,27.7,27.3,27.9,28.5,30.4,30.8
1958,32.3,33.3,33.7,31.7,30.2,28.3,27.1,27.5,28.1,29.4,30.6,31.1
1959,31.9,33.4,33.2,32.2,30.1,29,27.7,27.4,28.2,29.6,31.3,31.3
1960,32.1,34,32.9,31,30.6,28.5,27.7,27.6,28.2,28.9,30.8,30.4
1961,31.4,33.2,33.9,31.4,30.9,28.2,26.6,27,28.1,29.8,31.4,31.2
1962,32.1,34.1,33.2,31.8,30,27.4,27.2,26.8,28.3,29.4,30.1,31
1963,31.9,32.3,32.2,31.5,30.3,29.2,28.6,28.1,29,29.1,31.1,31.7
1964,31.9,33.8,33.1,31.6,31.1,28.1,26.8,26.4,27.8,29.1,31,30.5
1965,31.6,32.2,33,31.7,30.6,28.4,27.8,27.7,28.8,30.2,31.7,31.9
1966,32.3,34.1,33.3,32.2,30.9,29,28.5,27.5,28.4,29.7,31.4,31.6
1967,32,33.7,33,32,30.6,28.4,27.6,27.3,28.1,29.6,31.5,30.9
1968,31.7,33,32.4,31.5,30.3,28.8,28.2,28.5,28.3,29.7,30.7,31.3
1969,32.5,34.1,33.3,32.6,31.5,29.4,27.9,27.6,28.4,29.2,31.1,32.8
1970,32.2,34.2,33.2,32.8,31.5,30.2,28.1,27.1,27.6,29.5,30.7,31.2
1971,31.6,32.2,31.8,31.5,30.9,28.4,27.3,26.3,27.4,29.7,31.5,30.8
1972,32.1,32.8,32.1,31,30.2,28.6,28,27.8,28.8,29.5,31.8,31.6
1973,33.1,34.4,33.9,32.3,30.9,29.1,28.6,27.2,27.6,29.7,31.7,31.3
1974,30.9,33.2,32.4,31.6,29.8,28.6,27.2,27.5,27,28.9,31,31.1
1975,32.2,32.5,32.4,31.3,30.1,28.8,27.3,26.5,27.3,29.2,30.6,30.6
1976,31.7,31.7,31.7,31.2,30.3,28.1,27.1,27.1,28.7,27.9,29.8,31.1
1977,31.4,33,33.7,32.8,30.9,28.8,27.5,27.7,28.6,29.7,32.2,31
1978,32.4,33.2,31.7,30.7,30.1,28.1,27.5,27.9,28.3,28.7,30.4,31.4
1979,32,33.2,33.1,32.1,30.3,28,27.4,27.6,28.4,29.3,30.3,30
1980,31.4,32.3,32.5,32.2,29.6,28.9,27.4,27.1,28.2,28.6,30.2,29.9
1981,32.4,33.5,33.3,32.3,30.3,29.4,27.1,27.8,29.1,30.4,31.6,32.4
1982,33.2,33.3,33.1,31.8,30,29.2,27.7,27.7,29.5,29.4,31.4,31.9
1983,32.4,35.2,35.2,33.6,31.4,28.8,28.3,28.3,29,30.7,31.9,30.2
1984,32.3,34.7,33.5,31.7,30.7,29.3,28.5,29.2,29,30.1,32,31
1985,32.5,34.6,33.2,31.5,30.3,29.4,27.8,28.3,28.6,30.5,31.9,29.8
1986,32.9,33.6,32.5,32.6,31.6,29.3,27.4,28.2,28.5,29.5,30.9,31.1
1987,33,33.8,33,33.5,31.8,30,29.3,29,29.4,30.3,33,31.6
1988,32.3,34.5,33.2,32.4,31.6,29.4,28,28,28.7,30.6,32.2,30.8
1989,32,33.8,33.3,32.6,31.4,29.6,28.4,28.4,28.7,29.4,32.3,31.6
1990,32.6,33.6,35.7,32.7,31.2,30.1,27.8,28.6,29.2,30.2,32.1,31
1991,31.8,32.8,32.5,31.1,29.9,29.7,27.5,27,28.8,28.7,30.8,30.8
1992,31.2,33.4,33.2,32.1,30.9,28.7,27.3,27,28,29.7,30.6,31.6
1993,31.7,34,32.4,32.1,31.3,29,27.8,27.8,28.9,30.2,31.6,31.5
1994,31.3,33.7,32.8,31.5,30.5,29.3,27.5,27.3,28.3,29.2,31.5,31
1995,34,34.6,32.8,32.2,31,29.4,28.1,27.8,28.8,29.9,32,31.6
1996,32.4,32.9,32.9,31.9,31.3,29,28.3,27.5,28,29.2,31.7,31.8
1997,32.4,34.4,32.7,31.4,30.4,28.7,27.8,28,29.6,30.5,31.5,31.4
1998,32.7,34.9,34.6,33,31.2,29.9,27.9,28.1,28.8,29.8,32.1,32.4
1999,32.2,33.4,33.2,32.1,31,29.9,28.4,27.7,27.9,28.8,31,32.3
2000,33.1,34,34.1,32.8,31.7,29.3,28,27.4,28.8,29.8,32,32.2
2001,32.4,34.6,33.6,31.7,31,29.1,28.1,27.7,28.7,30.1,31.5,32
2002,31.5,33.5,33.1,31.2,32.3,29.5,28.5,27.9,28.7,29.7,31.5,31.7
2003,32.1,33.9,33.8,31.7,31.4,29.1,28.3,27.8,28.9,30.1,32.4,31.9
2004,31.8,33.5,33.3,31.9,30,29.2,27.8,27.7,29.3,30.3,31.9,32
2005,32.3,34.2,32.6,32.4,30.6,28.6,27.7,27.2,28.6,29.7,32.1,31.9
2006,30.8,34,32.5,32.8,30.4,30.2,28.9,27.7,28.2,29.7,31.4,31.8
2007,31.1,33.9,33.7,31.8,31.2,29.1,28.1,28.3,28.6,29.9,31.7,30.9
2008,30.7,33.2,33.5,32.6,31,29.4,28.4,28.1,28.9,29.9,32,32
2009,32.6,33.6,33.6,31.7,31.6,29.8,28.2,27.7,29.1,29.4,31.1,32.2
