1901,31.7,31.5,30.2,24.2,24.1,21.7,22.9,23.3,26.6,28.9,29.7,32.5
1902,31.5,33.7,30.7,27.3,25.1,23.7,22.7,20.4,26.4,26.8,30.4,31.9
1903,31.8,31.9,30.6,25.8,22.4,21.6,21.3,22.7,26.8,26.2,29.5,30.6
1904,30.9,30.5,30.8,27.3,21.6,20.6,23.1,22.9,25.5,26.2,29.7,30.5
1905,30.6,30.1,30.6,25.4,23,22.3,20.5,23.1,25.1,28.7,28.4,31
1906,33.8,33.4,32.1,27.3,25.9,21.1,22.8,23.1,24.2,28,30.5,30.7
1907,32.5,32.6,32.3,27.4,22.2,21.1,21.9,22.1,25.8,27.7,30.2,33.1
1908,32.8,31.5,30.5,26.9,23.7,22.7,23.3,22.1,25.4,27.6,30.1,32.1
1909,32.8,30.9,30.4,27.7,21,20.2,22,26.2,25.9,27.1,28.6,30.4
1910,32.8,30.6,29.9,28.2,23.6,22.5,21.3,24.5,25.1,27.2,30.3,31.5
1911,33.4,32.4,29.6,26.9,24.5,19.8,21.6,22.6,24.5,27,30.7,32.6
1912,33.2,33.5,31.5,27.6,24.7,22.8,20.9,23.4,24.5,28.3,30.7,33.1
1913,29.8,30.3,28.5,27,23.2,19.4,24.7,22.9,24.3,27,29.5,30.5
1914,31.5,30.5,30.5,27.3,23,23.5,25.3,22.3,23.8,26.7,28,30
1915,31.8,33,27.8,27.9,25.1,16.9,20.7,23.8,22.9,26.4,27.6,30.5
1916,30.8,29.1,27.3,26.8,23,19.7,18.1,21.8,26.2,26.5,29.6,30.4
1917,33.7,30.9,29.1,24.5,21.6,20.1,19.5,21.7,25.4,25.2,28.1,32.4
1918,32.5,29.4,28.8,26,21.6,19.5,20.2,23,25.1,27.2,30.2,31
1919,33.2,30.2,30.7,27.7,25.2,21.2,23.5,21.4,21.7,27.2,28.7,32.1
1920,32.3,31.6,31.5,28.3,23.9,20.4,18.4,21.7,24.4,27.4,30.7,31.4
1921,32.2,31.5,29.4,26.3,26.4,18.6,20.5,23.4,24.4,27.6,29.7,34.6
1922,32.4,31.4,29.7,27.1,23.2,19,23.4,23.3,24.8,24.6,30.6,31.6
1923,33.1,32.2,31.9,28.4,21,21.1,19.7,24,25.5,27.2,29.6,32.6
1924,31.9,32,30.8,24.9,21.1,21.3,20.4,21.4,23.2,26.3,27.9,33.3
1925,31.7,33,31.1,27.6,23,18.7,20.1,26.3,25.1,26.7,30.2,33
1926,33.7,33.2,33.6,27.3,22.8,23.3,21.2,24.8,27.2,28.8,31.2,32.1
1927,33.1,33.1,31.3,27,23.7,19.9,21.9,23.7,26,28.2,30.2,31.1
1928,34.1,32.2,30.9,28.4,23.5,19.5,20.5,22.7,23.7,27.8,31.2,32.3
1929,34.3,32.4,30.9,28.2,23.5,19.6,20.5,22.7,23.8,27.7,31,32.3
1930,32.3,31.5,31.2,28.6,24.6,26.4,21.6,22.6,24.3,27,30,32.4
1931,33.3,34.2,31.7,27.1,21.5,19.2,22.6,24.6,23.9,28.8,29.5,33.5
1932,34.5,32.1,31.8,28.4,22.8,21,25.5,22.5,25.8,28.8,31.6,32.8
1933,34.6,33.3,32.5,29.7,26.1,21.7,19.7,25.4,26.5,30.5,31,33.8
1934,34.2,31.3,32.5,25.1,25.2,24.6,22.4,24,26.3,27.4,31.3,32.8
1935,34.5,33.3,33.6,27.1,24.2,24.3,21.7,23.9,23.9,26.7,30,32.7
1936,34.2,32.1,32.5,26.9,27.1,23,21.7,21.3,26.2,28.9,30.7,33.5
1937,34.1,32.6,30.4,25.9,23.1,23.6,22.4,26,25.2,27.2,30.6,33.2
1938,33.2,31.8,31.6,25.9,24.6,23,23,23.3,26.3,28,31,33.6
1939,36.5,33.3,29.9,27.4,25.7,23.6,21.6,26.1,25,29.4,28.9,30.8
1940,32.5,32.5,30.9,28,25.4,23.4,25,23.4,25.9,26.8,29.8,34.6
1941,34.7,32.4,30.8,27.7,22.9,20.5,23.4,26.3,23.7,29.7,29.9,32.1
1942,34.7,34.3,30.5,28.4,22.1,19.1,20.4,26,26.3,29.9,33.6,35
1943,35.3,34.9,33.1,27.7,25.6,21.5,23.4,21.6,27.3,30.4,31.1,34.2
1944,35.6,35.5,31.1,28.5,25.3,23.8,24.1,27.5,29.5,29.8,31.8,35.3
1945,36.2,34,31.4,30.7,25.4,20.8,24.2,28.6,25.8,31.1,30.6,33
1946,32.2,33.7,30.5,27.2,24.2,20.3,20.4,26.2,27.7,28.3,31.9,31.8
1947,33.8,33.7,31.2,27.8,25.2,24.4,20.7,23,25.8,27.2,31.2,33.1
1948,35.8,32.5,31,27.6,24.2,24.1,23.2,22.9,27.4,28.3,30,34.4
1949,34.4,33.1,32.8,27.2,25.2,23.1,23,24.5,25.7,26.6,32.5,33.4
1950,32.5,32.1,29.8,28.8,27.3,23.1,23,26.7,25.5,28,30.4,33.3
1951,33.2,31.1,29.7,25.1,26.4,23,24.7,24.5,26.7,29.3,31.3,32.6
1952,35,33,32.7,25.5,26.7,18.1,24.3,25.9,24.8,28,30.3,33.4
1953,34.1,33.6,33.5,27,25.2,22.4,19.1,28.1,28.6,27.6,31.3,33.9
1954,33.4,34,31.6,28.8,22.8,22.2,22.1,24.8,25.3,27.6,32.7,32.7
1955,34.9,34.8,29.9,27.6,23.6,22.5,18.6,23.9,25.9,26.3,31.7,33.1
1956,32.5,32.3,31.3,26.1,21.1,20,21.6,23.1,26.3,28.9,31.1,33.5
1957,33.6,31.5,32.6,26.8,27.1,21.8,20.2,24.6,23.6,30.3,31.2,34
1958,35,34.5,30.9,27.5,23.8,24.3,25.1,21.6,25.9,27.9,30.6,32.5
1959,33.6,33.6,32.2,28.6,24.9,21.9,25.4,22.4,26.4,29,30.5,30.7
1960,35,32.6,31.3,27.4,22.4,23,23.3,24.3,26.1,29.6,31,33.7
1961,35.4,32.7,29.2,25.9,25.4,21.4,22.6,28.5,25,30.2,31.4,32.8
1962,33.4,32.7,32.1,26.9,23.4,23.9,18.2,23.7,27.5,26.9,33.5,35.6
1963,34.9,33.2,32,29.3,25.7,22,25.2,26.3,25.8,30.2,31.3,33.7
1964,36.3,34.1,31.7,27.4,26.1,20.7,22.8,23.9,25.8,28.6,31.5,32.6
1965,33.7,32.8,30.2,27.9,24.3,24.3,22,24.1,24,29.6,30.3,31
1966,32.5,30.8,30.1,28.7,25.2,24.4,23.8,24.3,25.6,28.9,31.5,34.1
1967,32.2,30.3,29.9,28.6,26.5,20.5,22.6,25.3,26,31,30.1,36.2
1968,33.2,33.6,31.5,26.7,24.5,23,24.3,24.5,25.3,28.8,32.3,34.5
1969,32.4,33.9,31.3,27.2,25.5,21.9,25.1,23.1,28.7,27.7,30.7,33.3
1970,35.6,32.7,31.9,30.6,26.2,21.6,22.3,22.9,25.6,27.5,29.6,32.5
1971,31.6,30.6,29,25.7,22.2,18.5,23.6,23.2,27.7,26.8,32,33.4
1972,33.3,33.2,31.1,26.4,26.9,24.3,21.3,21.3,26.8,26.4,28.5,30.5
1973,32.4,32.5,30.6,28.5,23.1,21.7,19.4,20.5,23.9,27.3,29.2,30.9
1974,32.6,30.5,29.4,27.1,23.7,19.4,24.5,21.9,24.4,27.1,30.4,30.5
1975,31.9,31.9,29.4,27,23.7,22.5,20.8,21.8,23.9,26.7,28.5,31.6
1976,31.9,31.6,29.2,27.3,23,21.4,22.3,23.3,22.8,28.2,30.1,32.4
1977,30.8,33.4,31.6,28,23.4,23.1,24,22.7,28.1,30,29.7,31.7
1978,33.3,32,33.4,28,24.9,22.7,24.4,22,25.6,29.4,29.8,32.7
1979,35.7,33.6,29.2,24.7,21.8,20.8,21.9,24.5,22.3,28.1,29.1,30.6
1980,32.8,31.9,31.9,29.4,25.1,20.1,21.5,24.4,24.3,28.1,27.9,31.3
1981,31.3,31.3,31.8,27.5,27,19.8,22,26.6,23.6,28.1,30.1,31.2
1982,33.8,30.7,30.3,28.2,25.3,20.8,23.2,24.1,25.3,27.2,27.4,30.1
1983,32.2,31.1,29.7,25.8,22.4,17.5,18.5,22.3,23.2,27.9,29,33.7
1984,32.8,33.8,30,24.4,25.2,18.9,22.4,20.5,25.7,30,29.1,30.1
1985,33.2,31.5,32,26.4,25.3,22.4,21.7,20.9,23.5,28.2,33.5,35.5
1986,35.6,33.2,29.5,27.3,24.6,23.7,22.1,24,24.7,27.5,29.9,31.1
1987,31.7,30.1,30.9,26.2,19.9,21.1,24.1,22.1,24.7,27.2,30.5,30.7
1988,33.1,31,34.4,26.7,19.9,19.5,19.8,24.6,24.1,27.5,30.6,32.7
1989,31.5,31.4,29.2,26,23.8,20.6,20.3,23.8,22,26.9,29.8,32.1
1990,31.9,30.8,31.3,26.3,22.3,18.2,18,24.2,22.8,27.9,30.5,31.4
1991,32,32,30.6,27.4,24.5,21.6,21.6,24.3,26.2,26.8,28.8,31.2
1992,32.2,31.1,28.3,26,22.6,22.1,17.5,21,23.3,26.2,27.9,31.5
1993,32.1,32.8,30.9,28.6,24.2,21.7,19.9,23.5,23.7,27.3,29.4,32.7
1994,34.1,29.3,28.6,26.6,26.1,24.9,22.1,24,23.8,28.3,29.1,32.8
1995,31.4,30.4,29.7,25.8,22.8,23.4,23.5,25.1,25.3,26.9,32.6,33.4
1996,32.9,30.6,29.1,27,24,18.3,20.9,25.5,24.1,26.6,30.2,30.8
1997,33.2,31.2,31.4,28,25.1,20.5,24.2,24.3,26.2,27.3,29.1,31.8
1998,32.6,29.5,28.3,25.1,23.2,21.1,23.5,21,23.1,27.7,30.1,30.2
1999,32.1,31.9,31.8,26.1,22.9,20.3,19.2,24.8,28.3,28.5,30.3,32.5
2000,33.2,31.4,30.5,27.5,22.5,21.2,18.8,24.3,25.2,28.1,28.6,31.1
2001,32.8,31.1,30.6,27.3,20.7,22,24,27.3,25.7,29,31.1,32.3
2002,32.9,31.8,31.7,28.4,25.2,20.1,20.7,25.3,25.7,29.1,30.7,31.7
2003,33.1,31.7,30.2,27.8,24,25.1,22.3,22.1,27.1,29.5,30.4,30.2
2004,33.8,32.3,32.3,30,19.6,22.2,21.7,23.3,25.6,28,27.7,30.8
2005,32.9,32.3,32.5,26.7,24.4,19.3,21.7,25.4,21.9,26.2,30.4,32.4
2006,33.3,31.9,29.9,26.9,22.4,20.6,25.8,25.6,25.6,29.2,30,33.2
2007,30.2,31.3,29.7,28.7,20.4,21.8,19.9,21.2,27.7,29.5,29.2,31.8
2008,32.4,29.9,30.8,26.3,23.5,18.9,25.4,24.2,24.5,28.1,30.9,32.7
2009,31.3,30.5,32.4,30,24.9,19.5,18.9,23.8,23.5,28.3,31.5,30.6
