1901,31.5,31.6,29.7,23.9,23.3,21.6,21.1,21.4,25.3,27.4,28.9,32.1
1902,31.7,33.5,30.1,27,24.5,22.8,21.1,19,25,25.5,29.6,31.9
1903,31.6,32,30.4,25.3,22,21.1,20.1,21.4,25.7,25.1,29,30.9
1904,31.1,30.6,30.2,26.9,21.3,20.2,21.6,21.2,24.6,25.3,29,30.4
1905,30.8,30.5,30.1,25.2,22.1,21.4,19.2,21.5,24.3,27.3,28,31.1
1906,33.3,33,31.3,26.7,24.8,19.9,21.2,21.9,23.3,26.7,29.3,30.6
1907,32.4,32.6,31.2,26.4,21.2,20.3,20.2,20.5,24.1,25.8,29.2,32.8
1908,32.3,31.4,29.9,26.1,22.7,21.8,21.4,20.4,24.2,26.1,29.1,31.9
1909,32.6,31,29.3,26.7,20.3,19.4,20.5,24.1,24.7,25.5,27.7,30.2
1910,32.7,30.7,28.9,26.9,22.3,21.6,19.6,22.7,23.8,25.7,29.4,31.6
1911,33.1,32,28.7,26,23.3,18.8,20,20.9,23.1,25.3,29.7,32.1
1912,32.8,32.9,30.6,26.5,23.6,22,19.3,21.6,23.6,26.9,29.8,32.6
1913,30.5,31.6,28.3,26.8,23.1,19.3,23.1,21.7,23.7,25.8,29,30.6
1914,32.2,30.9,29.9,26.5,22.7,23.3,23.5,21.4,23.3,25.7,27.8,30
1915,31.9,32.9,27.5,27.3,24.2,16.8,19.6,22.3,22.5,25.4,27.8,31
1916,31.4,30,27.2,26.5,22.7,18.9,17.2,20.6,25.1,25.7,29,30.7
1917,33.3,31.2,28.5,24.5,20.8,19.7,18.4,20,24.3,24.4,27.7,32.3
1918,32.5,30.1,28.7,25.7,21.1,19.1,19,21.2,23.6,25.7,29.4,31
1919,33,30.6,30,26.9,24.9,20.7,21.7,20.2,21.4,25.7,28,31.8
1920,32.6,31.7,30.7,27.6,23.3,19.7,17.8,20.4,23.8,26.1,29.8,31.5
1921,31.9,31.6,29,25.6,25.1,17.9,18.9,21.7,23.7,26.2,28.6,33.8
1922,32.2,31.2,29.3,26,22.7,18.9,22.4,22,24.1,23.7,29.7,31.5
1923,32.9,32.3,31.2,27.4,20.7,20.7,18.4,22.3,24.4,25.4,28.8,32
1924,31.7,31.7,30.2,24.5,20.8,20.6,19.3,19.9,22.6,24.9,27.3,33.1
1925,32.1,33.4,30.8,26.7,22,18.3,18.6,24.2,24.2,25.4,29.4,32.7
1926,33.8,33.2,32.3,26.4,21.9,22.2,19.7,23.2,25.6,26.9,30.2,32.2
1927,33,33.3,31,26.4,22.8,19.6,20.6,22.3,24.4,26.3,29.4,30.9
1928,33.2,31.5,30.1,27.7,22.8,19.1,19.8,21.2,23.1,26.5,30.4,32.3
1929,34,32.2,30,27.4,22.6,19.3,19.8,21.4,23.5,26.2,29.9,32.4
1930,32.5,31.8,30.2,27.7,24,25,19.9,21,23.6,25.5,29.1,32.3
1931,33.7,33.9,31.3,26,20.9,19,21.1,23.2,22.8,27.1,28.5,33.3
1932,34.6,32.5,31,27.2,21.8,20.2,24.4,20.8,24.5,27,30.8,32.2
1933,31.8,32.4,30.9,27.9,24.9,20.6,18.1,22.9,24.6,27.8,29.6,32.9
1934,34,30.8,31.3,24.2,24.5,23.5,20.4,22.2,24.7,25.6,29.1,31.6
1935,33.6,32.5,32.6,25.7,22.2,23.5,20.3,22.1,23.1,24.8,29.2,31.4
1936,32.2,31.7,31.4,26.2,26.1,22.8,20.6,19.9,24.9,26.5,29.3,32.6
1937,32.9,32.8,29.1,25.8,22.3,23.2,19.5,24,24.1,24.4,28.3,31.4
1938,31.7,31.3,30.4,25.3,23.4,22.8,21.6,21.3,25.1,26,29.4,32.6
1939,35.5,33.2,29.8,26.6,24.5,22.9,20.2,24.6,23.7,28,27.8,29.5
1940,31.4,32,29.9,26.8,24.4,22.5,23.7,21.7,24.6,24.7,28.8,32.8
1941,33.3,31.1,28.9,27.9,23.1,22,22,24,22.9,26.8,28.7,31
1942,33.5,34.1,30.1,27.7,21.2,19.3,19.2,24.7,25.6,27.2,32.6,34.2
1943,34.7,35.7,31.3,27.1,24.5,21.6,22.2,20.1,26,29.1,29.8,33.2
1944,33,35.3,29.8,27.6,23.9,22.6,22.7,25.8,28.2,28.5,30.6,34.2
1945,35.5,34.7,31.1,30.8,24.8,20.1,23,27,24.3,29.3,28.9,31.2
1946,31.4,32.8,30,26.5,23.7,19.7,18.8,24,26.5,26.2,30.7,30.5
1947,32.7,33.7,30.3,26.5,23.9,23.3,19.4,21.3,24.4,25.8,30.6,32
1948,34.2,31.4,29.5,26.5,23.1,23.4,21.5,20.9,25.3,26,28.1,34.5
1949,33,32.3,31.1,26,24.2,22.6,21.4,22.7,24.3,25,31.2,33
1950,32.5,32,30.7,27.8,26.1,22,20.9,23.9,23.9,25.9,28.8,31.9
1951,32.5,30.8,29.1,24.6,25.3,22.7,23.2,23.2,25.9,27.2,30.2,32.6
1952,35.1,33.6,31.7,25.2,26.1,18.5,22.4,24.4,23.8,26.5,30.1,32.5
1953,32.5,33.2,32.7,26,24.3,21.8,17.3,25.8,26.2,25.5,30,32.7
1954,32.5,33.1,30.7,26.9,21.9,21.3,20.1,23.1,23.8,25,31.4,31.9
1955,33.7,33.7,29.2,26.1,22,21.1,17.3,22.3,24.4,24.6,31.1,32.4
1956,31.9,32.3,30.4,25,20.1,19.7,20,21.8,24.9,27.5,30.4,32.4
1957,33.6,32,31.7,26,26.7,21.4,19.2,22.8,22.6,28.1,29.8,33
1958,34.2,33.8,29.8,26.5,23.3,23.5,23.9,20.2,25.2,26.8,29.5,31.3
1959,32.7,33.1,30.8,27.6,23.2,21.4,24.7,21.4,25.3,27.2,29.6,31.5
1960,34.1,32.8,30.5,26.6,21.5,22.1,21.9,22.7,24.8,27.8,30.1,32.7
1961,34.4,32,28.4,24.8,24.4,20.6,21.2,26,23.8,27.7,30,32.1
1962,32.8,32.2,30.8,25.7,21.7,22,16.5,21.5,25.5,25.5,32,34.1
1963,33.2,32.6,31.2,27.6,24,21.6,23,23.8,24.2,26.2,27.6,30.5
1964,33.9,32.6,29.5,25.9,24.7,19.4,20.2,21.8,24.2,25.8,29,31
1965,33.7,33.6,29.3,26.6,22.6,23.7,19.7,21.6,22,26.7,28.4,29.2
1966,31.1,29.9,29,27,23.9,22.9,21.3,21.1,22.8,25.5,30.2,30.4
1967,31.6,32.1,28.7,28.3,27.2,18.8,20.9,23.5,24.3,27.7,29.1,35.1
1968,33.6,33.7,30.4,24.6,22.6,21.5,22.5,21.7,23.5,26.5,31.6,32.7
1969,31.1,32.1,29.8,26.6,23.9,21.2,23,20.8,25.8,26.7,28.7,32.5
1970,33.4,32.8,30.6,30,24.5,21.2,20.5,22.3,25.4,25.9,28,32.7
1971,31.6,30.6,29,25.4,21.9,18.4,22.3,22.7,27,26.5,32.7,34.7
1972,33,33.1,30.5,26.2,25.8,23.4,20.2,20.2,26,24.6,27.5,30.9
1973,32.1,32.1,30.1,27.8,22.6,21.1,18.7,19.8,22.9,27.1,30.1,31.3
1974,32.6,30.7,29.8,28.1,24.3,19.6,23.7,22.4,24.6,27.6,30.1,30.8
1975,32.3,33,29.1,26.4,23.8,22.6,19.7,20.9,23.2,25.9,28.5,32.6
1976,31.8,31.8,28.5,26.1,22.2,20.4,20.6,22.2,24.2,27.5,30.2,31.9
1977,31.1,32.6,31.2,27.7,22.4,22.9,23.3,21.6,27.9,29.5,29.7,32
1978,33.7,31.9,32.4,27.8,24.4,21.9,22.2,20.4,26,27.8,29.1,32.9
1979,36,33.5,29.1,25,21.7,21.6,21.7,23.8,23.2,26.4,28.7,30.8
1980,33.7,33.4,32.5,29.6,24.8,19.9,21.3,23.5,24,26.6,28.5,32
1981,31.8,32.4,30.7,28,27.4,20,21.2,25.7,23.4,27.9,30.8,32.4
1982,34.3,31.5,31.1,29,25,21.2,22.8,23.9,26.2,27,28,31.6
1983,33.2,31.9,29.5,26.3,22.3,18.9,17.9,21.9,23.6,28,28.9,34.4
1984,33.1,33.9,30.1,25.2,24.8,18.8,21.4,19.9,23.8,28.8,29.2,31.1
1985,34.6,32,30.8,26.3,24.5,22.3,20.8,20.8,23.8,28.3,33,35.5
1986,36,32.6,29.1,26,23.8,23.7,21.6,23.2,24.7,26.7,29.1,32.5
1987,33,31.8,31.6,26.3,19.6,20.9,22.9,21.2,23.6,27,30.6,31.8
1988,33.5,31.9,34.4,26.4,20,19,20,23.4,23.3,27.5,31,34
1989,32.8,33.8,30.1,26.2,23.8,20.2,19.3,23.3,22.5,27,30,32.6
1990,32.7,31.6,30.1,26,22.4,18.8,18.2,24.9,22.7,28.1,30.3,31.1
1991,33,33.4,32.1,27.8,25,21.9,21.2,23.4,26.2,27,29.1,32.1
1992,33,32.6,29.2,26.4,22.7,22,17.9,21.7,23.9,26.9,28.8,32.8
1993,32.9,31.7,30.9,28,23.9,21.9,19.6,22.9,23.8,27.4,28.8,31.8
1994,33.7,30.2,29.6,27,25,22.7,21.9,23.2,25.1,27.1,28.5,34.1
1995,32,31.3,29.6,26.2,22.2,22.5,22.2,24.5,23.8,26.5,32,34.2
1996,33.2,30.8,29.4,26.9,23.8,18.9,19.9,24.9,24.1,25.7,30.3,31.7
1997,34,32.2,30.6,27.3,24.4,20.9,23.5,23.9,26,25,28.7,31.3
1998,31.5,29.9,27.7,24.3,23.4,20.9,21.8,21,23.3,27.3,30.9,31.1
1999,33.1,32.3,32,25.4,21.9,20.4,18.5,23.7,26.3,26.4,29.5,32.9
2000,32.9,32.6,29.4,27.2,22,21.1,18,23.2,24.3,27.4,28.5,30.9
2001,31.2,32.1,30.8,26.9,21,21.2,22.8,26.2,24,27.2,30.6,31.7
2002,33.3,32.4,31.5,26.7,24.3,20.3,19.9,24,24.2,27,29.1,30.6
2003,33.4,32.2,29.6,27.2,23.3,24.4,21.2,21,26.1,28.5,29.1,29.2
2004,32.8,32.4,32.5,29.3,20.1,21.8,21,22.2,25.6,27.4,27.8,31.6
2005,33.7,33.2,31,25.6,24,23.6,21.3,23.7,21.5,25.3,31.1,32.3
2006,34.6,33.9,31.4,27.1,22,22.2,24.4,23.7,24.5,29.1,29.8,33.5
2007,31.8,32.7,30.9,28.2,20.3,21.2,18.2,19.9,26.5,28.1,28.8,32.8
2008,33.5,32.3,31.3,27.6,23.1,18.9,23.5,22.5,23.7,26.5,31.6,33.4
2009,32.3,32.5,32.3,30,25,19.8,18.5,24.3,23.3,27.6,30.1,30.9
