1901,31.5,31.1,29.9,24.2,23.7,21.5,22.9,23.1,26.3,28.8,29.4,32.3
1902,31.2,33.2,30.5,27.3,24.8,23.5,22.8,20.4,26.1,26.7,30.3,31.8
1903,31.5,31.6,30.5,25.8,22.1,21.5,21.3,22.7,26.5,26.2,29.4,30.6
1904,30.6,30.1,30.6,27.2,21.3,20.5,23,22.8,25.2,26.2,29.5,30.4
1905,30.4,29.8,30.3,25.4,22.8,22.1,20.6,23,24.9,28.7,28.3,30.9
1906,33.4,32.9,31.7,27.2,25.5,21,22.8,23,24,27.9,30.2,30.6
1907,32.1,32.1,32,27.3,21.8,21,21.8,22,25.6,27.5,29.9,32.9
1908,32.4,31,30.2,26.8,23.4,22.5,23.2,22,25.1,27.5,29.9,31.9
1909,32.5,30.6,30.1,27.5,20.7,20.1,22,25.9,25.6,27,28.5,30.2
1910,32.5,30.3,29.7,28.1,23.2,22.3,21.2,24.4,24.8,27.1,30,31.3
1911,33.1,31.9,29.3,26.8,24.1,19.6,21.5,22.5,24.3,26.8,30.5,32.5
1912,32.9,33,31.3,27.5,24.4,22.7,20.8,23.3,24.1,28.2,30.5,32.8
1913,29.6,30.1,28.5,26.9,23,19.4,24.6,22.8,24.2,26.9,29.3,30.3
1914,31.3,30.2,30.4,27.2,22.7,23.4,25.2,22.2,23.8,26.8,28,29.9
1915,31.6,32.7,27.7,27.9,24.9,17,20.7,23.7,22.9,26.4,27.5,30.4
1916,30.7,28.8,27.2,26.7,22.8,19.7,18.3,21.7,26,26.4,29.4,30.3
1917,33.3,30.5,28.9,24.5,21.2,19.9,19.5,21.5,25.1,25.2,27.9,32.1
1918,32.2,29.1,28.6,25.9,21.4,19.4,20.2,22.7,24.7,27,29.9,30.8
1919,32.8,29.8,30.4,27.5,25,21.1,23.4,21.4,21.5,27.1,28.5,31.8
1920,32.1,31.3,31.2,28.2,23.6,20.3,18.7,21.5,24.2,27.4,30.5,31.2
1921,31.9,31.1,29.3,26.2,25.9,18.5,20.4,23.3,24.2,27.4,29.4,34.2
1922,32.1,30.9,29.6,27,22.9,19,23.4,23.3,24.6,24.6,30.3,31.4
1923,32.8,31.7,31.6,28.3,20.8,21,19.7,23.9,25.2,27.1,29.4,32.4
1924,31.6,31.4,30.6,24.9,21,21.2,20.5,21.2,23,26.1,27.7,33
1925,31.5,32.5,30.8,27.5,22.8,18.6,20,26.1,24.9,26.6,29.9,32.8
1926,33.4,32.5,33.2,27.2,22.5,23.1,21.2,24.6,26.9,28.6,31,31.9
1927,32.8,32.6,31.1,26.9,23.3,19.8,21.9,23.5,25.6,28,30,30.9
1928,33.6,31.7,30.7,28.3,23.2,19.5,20.6,22.5,23.5,27.7,30.9,32.1
1929,33.9,31.9,30.6,27.9,23.1,19.5,20.6,22.6,23.7,27.6,30.7,32.2
1930,32.1,31.1,30.9,28.4,24.3,26.1,21.6,22.6,24,26.9,29.7,32.2
1931,33.2,33.5,31.6,26.8,21.2,19.1,22.4,24.4,23.5,28.4,29.1,33
1932,33.8,31.6,31.3,28.2,22.4,20.6,25.3,22.1,25.4,28.4,31.1,32.2
1933,33.7,32.7,32.2,29.5,25.6,21.3,19.5,24.7,26.1,30.1,30.6,33.6
1934,33.8,30.8,32.4,25,24.9,24.4,22.3,23.8,25.9,27.2,31,32.5
1935,34.2,32.8,33.2,26.7,23,24.1,21.6,23.7,23.6,26.5,29.7,32.4
1936,33.9,31.8,32.3,26.7,26.8,22.9,21.6,21.1,26,28.8,30.4,33
1937,33.5,31.9,30,25.7,22.8,23.4,22.3,25.8,24.9,26.9,30.3,32.9
1938,32.8,31.4,31.5,25.9,24.2,23,22.9,23.2,26,27.7,30.6,33.1
1939,35.9,33,29.7,27.4,25.2,23,21.2,25.7,24.7,29.3,28.7,30.5
1940,32.1,32.2,30.7,27.8,25.1,23.3,25.1,23.4,25.8,26.9,29.6,34.1
1941,34.3,32.1,30.8,27.5,22.4,19.9,23.3,26.1,23.3,29.3,29.5,31.7
1942,34.3,33.9,30.5,28.2,21.7,19.1,20.5,26,26,29.6,33.3,34.7
1943,34.7,34.4,32.6,27.5,25.3,21.4,23.6,21.3,27,30.1,30.9,33.9
1944,34.9,35.4,30.9,28.1,25,23.5,24.1,27.2,29.3,29.8,31.3,34.9
1945,35.5,33.8,31.2,30.5,24.8,20.5,24.3,28.5,25.4,30.9,30.4,32.6
1946,31.7,33,30.3,26.9,24,20.3,20.3,26,27.5,28.3,31.7,31.5
1947,33.3,33.2,31,27.7,24.9,24.2,20.7,22.9,25.5,26.9,30.8,32.7
1948,35.4,32,30.7,27.5,23.9,24.1,23.2,22.6,26.9,28.1,29.7,34
1949,33.8,32.6,32.6,26.8,24.8,23.1,23.2,24.2,25.5,26.5,32.1,33.3
1950,32,31.6,29.4,28.6,27,23,23.1,26.6,25.1,27.7,30,32.9
1951,32.7,30.7,29.6,25.1,26.1,22.9,24.5,24.3,26.6,29.3,31.1,32.5
1952,34.8,32.5,32.4,25.4,26.6,18.3,24.3,26.1,24.7,28.1,30.3,33
1953,33.6,32.9,33.1,26.8,24.9,22.4,19,27.9,28.2,27.5,31,33.6
1954,33,33.4,31.3,28.5,22.4,22.2,22,24.7,25.1,27.4,32.5,32.2
1955,34.3,34.3,29.7,27.4,23.2,22.5,18.5,23.9,25.6,26.1,31.2,32.8
1956,32.3,31.8,31.1,26,20.6,19.6,21.5,23,26.1,28.6,30.8,33.2
1957,33.3,31.1,32.3,26.6,26.7,21.7,20.1,24.4,23.2,30.2,30.6,33.6
1958,34.6,33.9,30.8,27.2,23.1,24,24.9,21.5,25.5,27.8,30.2,32
1959,33.2,33,31.8,28.7,24.5,22,25.4,22.4,26.2,28.7,30.1,30.9
1960,34.3,32.3,30.9,27,21.9,22.9,23.5,24,25.9,29.3,30.6,33.6
1961,34.9,32.1,29,25.7,24.9,21.3,22.8,28.1,24.9,30.1,31.1,32.7
1962,32.9,32,32,26.9,22.8,23.2,18,23.3,27,26.5,32.8,34.8
1963,34.2,32.6,31.9,29,25.1,21.6,24.9,26.1,25.6,29.6,30.6,32.9
1964,35.8,33.2,31.1,27.6,25.4,20.3,22.3,23.6,25.6,28.1,30.9,32.1
1965,33.2,32.3,29.6,27.8,24,24.1,21.7,23.9,24.1,29.3,30.2,30.7
1966,32.3,30.4,30,28.5,24.7,24.1,23.7,23.8,24.9,28.2,32.8,33.7
1967,31.9,30.4,29.8,28.4,26.4,20,22.6,25.5,25.8,30.5,29.8,35.4
1968,32.8,32.9,31,26,23.6,22.7,24,24.1,24.6,28.5,30.9,33.9
1969,31.9,33.3,31.1,26.8,24.9,21.4,24.8,22.6,28,27.6,30.3,32.7
1970,34.7,32.2,31.4,30.5,25.6,21.3,22.4,22.7,25.2,27.5,28.6,32.2
1971,31.2,30.2,29,25.5,21.8,18.6,23.3,23.2,27.4,26.6,31.3,32.9
1972,33.1,32.7,31,26.1,26.3,24.1,21.6,21.2,26.6,27.3,28.5,30.4
1973,32.5,32.3,30.5,28.7,22.9,21.2,19.7,20.5,23.7,27.6,29.1,30.8
1974,32.1,30.5,29.4,27.1,23.7,18.9,24.4,22.5,24.6,26.8,30,30.5
1975,31.7,31.4,28.5,26.8,23.3,22.4,20.4,21.1,23.8,26.7,28.4,31.5
1976,31.5,31.1,29.2,26.7,22.6,21,22.4,23,22.9,28.1,29.8,31.9
1977,30.7,33,31.4,27.9,23.2,22.9,24.6,22.7,27.7,29.9,29.5,32.3
1978,33,31.8,33.2,27.4,24.3,22.3,24.3,21.9,25.4,29.2,29.7,32.7
1979,35.3,33.1,29.4,25,21.7,20.9,22.1,24.5,22.3,27.9,29.1,30.6
1980,32.4,31.9,31.8,29.2,24.6,20.1,21.9,24.3,23.8,28,28,31.1
1981,31.3,31.4,31.6,27.6,26.8,19.7,21.8,26.4,23.7,27.9,29.9,31.2
1982,33.6,30.7,30.4,28.4,24.9,21,23.6,24.2,25.5,27.4,27.6,30.2
1983,32,31,29.6,26.1,22.7,17.8,19.2,22.3,23,27.8,28.5,33.2
1984,32.3,33.3,30,24.7,25.1,19.4,22.7,20.4,25.3,30.2,29.1,30.1
1985,33,31.5,31.3,26.4,24.8,22.4,21.9,21.2,23.5,28.3,33.2,35.2
1986,35,32.5,29.4,27,24.4,23.5,22.3,24.1,24.6,27.4,29.8,31.1
1987,31.7,29.8,30.8,26.5,19.8,20.9,24.2,21.9,24.4,27.1,30.4,30.7
1988,32.9,30.4,33.7,26.6,19.7,19.6,20.1,24.5,24.1,27.7,30.7,32.8
1989,31.1,31.4,29.3,26.1,23.4,20.3,20.5,23.5,22.1,27.2,29.8,32.1
1990,31.6,30.7,31,26.4,22.2,18.5,18.2,24.3,22.7,28.3,30.6,31.4
1991,32.1,31.6,30.8,27.5,24.3,21.7,21.8,24,26.1,27,28.7,31.2
1992,31.9,30.9,28.3,26.1,22.6,22.4,17.9,21,23.4,26.6,28,31.8
1993,31.8,32.4,30.5,28.6,23.8,21.6,20.3,23.3,23.4,27.6,29.4,32.2
1994,33.5,29.3,28.8,26.7,25.8,25.2,22.4,24.3,24,28.5,28.6,32.9
1995,31.3,30.2,29.2,25.6,22.3,23.4,23.6,25.2,25,26.9,32.2,33.2
1996,32.7,30.4,29,27.1,23.8,18.3,20.9,25.5,23.8,26.7,29.9,30.7
1997,32.9,31,30.7,27.5,24.6,20.6,24.4,24.3,26.3,27.3,29,31.8
1998,32.4,29.4,28.3,25.1,22.9,21.3,23.6,21.2,23.1,27.7,30,30.2
1999,31.8,31.5,31.8,26.1,22.4,20.4,19.4,24.8,27.8,28.4,29.4,32.5
2000,33,31.5,30.6,27.7,22.3,21.3,18.8,24.5,24.9,28.4,28.8,31.1
2001,32.3,30.8,30.6,27.6,20.7,21.8,24.2,27.3,25.8,29,31.1,32.1
2002,32.8,31.7,31.8,28.5,24.9,20.5,21,25,25.5,29.1,30.4,31.7
2003,32.9,31.3,30.2,27.6,23.6,24.9,22.5,21.9,26.7,29.4,30,30.1
2004,32.9,31.8,32,29.7,19.8,22.3,21.9,23.2,25.6,28.2,27.8,31
2005,32.8,32.1,32.4,26.8,24.4,20.1,21.7,25.3,21.6,26.3,30.7,32.4
2006,33.4,31.8,30.2,26.9,22.1,20.7,25.7,25.2,25.2,29.5,30,33.3
2007,30.8,31.5,30.2,28.7,20.3,21.9,19.9,21.3,27.8,28.9,29.2,31.9
2008,31.8,30.4,30.8,26.5,23.1,19,25.7,24,24.1,27.9,30.9,32.6
2009,31.1,30.6,32.3,29.9,24.7,19.7,19.1,24,23.5,28.3,31.5,30.8
