1901,32.7,35,36.4,37.5,34.9,34.2,33.7,33.3,32.2,32,31.5,31.2
1902,31,34.4,36.2,36.9,35.5,34.9,33.7,33.2,32,31.9,31.2,32.1
1903,32.7,33.4,37.4,38.2,36.1,33.2,33.3,32.5,31.7,31.4,29.8,27.7
1904,29.3,32.2,35.7,36.2,35.2,34.1,33.4,33.4,32.7,32.3,30.3,29.6
1905,33.1,35.4,36.7,38.2,35.4,34.1,33.6,33.8,32.8,32.4,31.8,34.2
1906,34.2,35.8,36.9,38.9,36.8,34.7,34,33.7,33.2,31.8,30.4,31.2
1907,31.8,34.3,35.2,36.9,34.8,33.7,33.3,32.8,32.4,31.8,31.3,28.9
1908,31.7,33.8,35.9,37.3,35.2,34,33.3,32.9,32.4,32,29.7,30.6
1909,31.9,34.2,36.1,37,34.9,34,33.1,33.2,32.5,32.3,30.2,29.6
1910,32.7,33,35.1,36.9,35.2,33.6,33.5,33.2,31.8,31.7,31,29.2
1911,31.2,33.2,35.8,37.5,35.5,34.1,33.4,33.7,32.7,32.2,32.7,32.2
1912,32.4,34.2,37.1,37.5,36.7,34.7,33,32.5,32.1,31.4,29.5,30.4
1913,31.2,34.2,36.1,37.8,34.4,33.6,32.4,32.6,32.2,31.5,30.1,30.3
1914,30.8,34.4,36.1,37.8,36.4,33.8,32.8,32.4,32,31.2,31.2,31.4
1915,31.8,35.1,36.3,37.2,35,34.1,33,33.2,31.8,31.5,29.9,28.1
1916,29.9,33.4,36.6,37.2,35.3,33.5,33.4,32.8,32,31.1,29.3,29.2
1917,31.4,33.5,34.8,37.5,35.6,33.2,33,32.4,31.6,30.7,30.1,29.3
1918,31.1,32.1,35.1,36.1,34.5,34,33.9,33,32.7,32,31.9,32.2
1919,32.5,34.4,37.2,37.2,35.4,33.5,33.1,33,32,31.6,30.6,31.1
1920,30,33.9,36.3,37,35.8,33.9,33.1,33.3,32.3,31.1,31.4,31
1921,31.1,33,36,36.9,34.6,33.8,32.3,32.7,31.5,31.2,29.7,30.3
1922,32.3,34.3,35,37,35.7,33.8,32.4,32.7,32.6,31.4,29.9,29.8
1923,31.2,32.4,35.5,35.9,34.2,33.4,32,32,31.7,31.2,31.2,31.2
1924,32.2,33.8,36.2,36.4,35.2,33.7,32.1,32.6,31.7,30.8,31.8,28.6
1925,31.8,32.8,36,35.6,35.2,33.8,33,32.9,32.3,31.1,30.9,29.2
1926,32.1,34,35.7,37.7,36.2,34.4,33.2,32.6,32.3,31.3,30.8,31.1
1927,31.7,33.8,36.4,36,34.3,33.6,32.8,32.6,31.9,31.1,31.1,30.7
1928,33.5,33.6,36.1,36.2,34.9,33.3,32.8,32.8,31.8,30.8,30.3,31
1929,32.4,33.3,34.5,36.1,35.1,33.2,32.4,32.6,32,31.2,30.6,31.8
1930,32.4,33.3,34.8,35.7,35.1,33.8,32.5,32.5,32.7,31.5,30.9,31.1
1931,32.5,32.6,36.9,37.6,36.1,34.2,33.4,32.8,31.9,30.6,29.8,30.5
1932,30.4,34.1,35.6,37.2,36.2,34.7,33.1,34,32.4,31.7,31.7,29.7
1933,32.5,34.5,36.1,37.2,35.9,34.3,33.1,33.6,32.6,32,29.9,30.4
1934,31.2,32.9,35.8,37.2,36.4,34.7,33.2,32.9,32.6,31.6,31.5,28.8
1935,33.2,34.7,36.8,37.4,35.7,34.2,33,33.3,32.5,32.5,32,31.9
1936,31.4,33.5,35.8,37.6,36.1,34,33.2,33,32.4,30.9,31.4,33.3
1937,33.4,35,37.6,37.1,33.5,33,32.2,32.6,31.5,30.9,30.2,30.2
1938,32,33.6,35.7,36.4,34.3,31.8,31.8,32.5,30.9,30.7,29.9,30.2
1939,32.1,33.7,35.4,37.1,34.8,32.8,32.2,32.4,31.4,31.2,30.5,27.2
1940,31.2,34.2,37,39,36.5,34.2,33.4,33.1,32.9,32.1,32.5,32.6
1941,36,36.1,38.2,39.3,35.9,34.5,34.1,33.6,33.3,32.2,32.4,32.7
1942,32.1,35.1,36.9,36.9,34.7,33.9,33,32.9,32,31.6,30.7,30.9
1943,31.9,34,36.8,35.9,35.3,33.8,33.2,33.2,31.6,31.4,30.4,30.2
1944,33.1,35.1,36.9,38.2,35.5,34,33,32.9,32.4,31.8,30.7,29.9
1945,33.2,35.3,35.6,37.3,35.7,34.3,33.5,33.6,32.7,31.4,32.4,31.9
1946,33.3,33.7,36.9,36.6,34.6,34.6,34.2,33.5,32.7,32.2,31.9,33.5
1947,35.3,35.7,36.5,36.2,37.3,34.8,33.1,33.7,33.2,32.7,31.4,31.9
1948,31.8,34.6,36.4,36.4,34.9,34.2,33.1,33.3,32.5,31.2,29.6,31.9
1949,30.6,33.8,36.4,36.3,35.6,34.7,33.3,33,32.4,32.1,31,31.9
1950,33,35.2,37.1,36.6,34.9,33.4,33.3,33.9,32.4,31.1,31.3,29.2
1951,31.8,34.2,36.6,37.7,35.6,32.5,33.1,33.1,32.4,31.9,31.6,30.7
1952,33.3,35.4,35.6,37.5,36.4,34.6,33,32.6,32.3,31.1,31.4,30.2
1953,31.7,33.3,35.8,36.9,35.4,33.5,33.3,32,32.3,32.4,29.9,30.3
1954,33.8,34.5,36.1,37.9,34.5,34,33.7,33,31.5,31.8,31.1,30.4
1955,30.9,34.2,35.9,35.9,34.5,32.6,32.9,32.3,31.8,31.3,29.2,30.2
1956,31.5,34.6,36.9,35.5,33.7,33.3,32.2,32,31.6,30.9,29.6,29.1
1957,32.6,33.7,35.6,36.4,38,34.1,33.1,33.1,31.7,30.9,31.6,32.3
1958,32.9,33.8,37.2,37.6,38,35,33.1,32.8,32.2,31.8,30.9,31.1
1959,33,36.1,35.7,37.7,35.5,35.4,32.6,32.8,32,31.4,31.9,33
1960,33,34.5,38.2,39,36.5,34.5,33.3,33.5,32.5,31.3,31.8,30.4
1961,32.2,33.7,36,37.9,33.9,33.7,32.9,32.7,31.8,31.3,30.9,31.2
1962,31,33.8,36.2,38.3,35.5,34.1,32.9,32.7,31.2,31.4,31.8,31.5
1963,29.6,34.2,36,37.3,38.6,34.3,32.7,32.9,32.2,31.6,31.9,31.1
1964,33.9,34.5,37,38.3,33.9,33.7,33,32.6,31.8,31.4,29.3,29.6
1965,31.2,33.8,35.4,36.9,35.2,32.5,33.7,33.5,31.9,31.9,31.6,31.8
1966,33.1,34.6,37.7,38.1,34.6,33.8,33.2,32.9,31.8,31.9,31.5,31.7
1967,30.5,33.4,36.4,36.8,35,35,34,33.3,32.5,31.3,31.3,30.4
1968,32.1,33.5,36,35.8,34.7,33.9,33.4,33.5,32.6,32,32.9,33.9
1969,33.9,35.4,36.9,37.5,36.2,34.3,32.2,32.2,31.4,31.6,29.8,29.9
1970,32.4,34,36.5,35.9,35,33.4,32.4,31.8,32,30.9,30.6,30.6
1971,30.7,32.9,34.6,36.6,34.7,33.5,32.3,32.6,32.2,31,29.9,31
1972,31.5,35,35.6,35.7,38,34.5,34.1,33.4,32.3,32.8,31.5,31.2
1973,33,35.9,36,38.5,35.6,34.2,33.7,32.9,31.9,31.9,30.5,29.9
1974,31.8,33.6,35.7,36.3,34.5,33.2,33.2,32.7,32.6,31.9,31.5,31
1975,30.8,34,36.1,37.3,34.6,33.5,33.1,32.9,31.5,31.8,30.8,28.8
1976,32.2,33.5,35.7,37.4,33.5,34.6,33.6,32.4,32.4,32.3,29.7,31
1977,32.9,33.2,34.8,36.7,35.3,36.1,34.6,34.4,32.6,33,31.6,31.2
1978,33,33,37.6,37.9,35.6,34.4,32.6,32.6,32.1,31.7,31.5,31.8
1979,34.1,35.4,37.9,37.5,36.4,33.8,34.8,33.5,32.9,32.7,32.2,31.9
1980,33.2,35.1,37.8,39.2,38.1,33.9,33.6,32.8,31.8,31.4,31.6,31
1981,31.8,34,35.9,35.8,34.4,33,32.4,31.9,32.1,31.7,29.7,29.1
1982,31.5,34.1,35.4,35.2,35.2,33,32.6,31.6,31.5,31.9,32.2,29.2
1983,31,34.1,35.8,37.5,36.5,34.2,33.7,32.3,32.2,30.8,29.1,29.9
1984,30.5,33.5,35.3,36.2,35.1,33.3,32.5,33.1,32,31.2,31.4,31.4
1985,32.8,35.2,36.5,36.9,34.3,32.6,31.9,32.6,31.5,30.9,31.2,30.7
1986,30.9,33.7,35.1,36.5,33.8,34.2,33,33.1,32.6,31.9,31.1,31.2
1987,32.4,34.1,35.4,37.4,36.3,34.5,34.9,33.9,32.2,32.2,31.2,28.9
1988,33.1,34.4,36.7,35.9,33.5,33.6,32.9,32.5,32.7,31.2,29.5,30.4
1989,32.4,33.4,34.3,37.8,35.4,33.5,33.4,33.4,32.8,32,31.5,31.2
1990,33.1,34.4,35.6,37.8,35.2,34,33.6,33.6,32.8,31.7,31.4,31.6
1991,33.8,35.1,37.4,37.5,37.3,34.3,34.5,33.2,33.4,32.3,32,31.9
1992,31.2,34.1,37.1,39.2,38.4,35.1,33.9,33.5,33.7,31.1,30.9,32
1993,32.2,33.7,36,37.2,36.9,35.6,35.2,33.5,33.2,32.6,33.1,31.2
1994,33.6,36.2,35.7,37.8,35.2,33.4,32.6,32.9,33.4,32.2,32.1,33
1995,32.7,33.5,36.3,37.6,35.6,34.6,33.4,32.5,32.8,32.2,31.5,30.8
1996,33,32.6,36.2,36.1,34.5,33.8,33.2,33.2,31.9,32,31.6,30.4
1997,31.9,33.9,35.8,36.2,36.4,36,33.4,33.7,32.9,33.1,32.8,33.6
1998,34.3,35.9,37.7,38.1,37,34.9,34,33.7,32.7,32.9,32,31.2
1999,32.4,33.5,36.7,34,33.1,33.2,33.4,32.9,32.8,31.7,31.6,28.9
2000,32.9,33.4,35.8,35.1,34.6,33.5,33.3,33.7,32.9,33,32.1,32.8
2001,33.9,35,34.9,38.2,34,33.5,32.9,32.6,32.7,32,30.5,31.6
2002,32.1,34.2,35.8,37.6,34.6,33.7,33.7,32.8,31.9,32.7,31.8,32
2003,32.1,34.2,35.3,37.5,36.2,33.6,32.6,33,32.1,32.8,33.7,31.7
2004,32.9,32.8,36.7,38.7,35.2,33.5,33.2,33.1,32.6,32.6,33.6,32
2005,32.4,35.4,35.9,36.7,36.2,34,32.9,33.3,32.2,32.6,31.4,30.3
2006,33.1,34.5,36.5,37,34.2,33.6,32.8,32.7,32.4,32.6,33.6,31.9
2007,32.7,34.2,36.9,36.8,34.1,33,32.9,33.1,32.5,31.8,30.8,32.9
2008,32.6,32.7,35.8,35.9,33.5,33.3,32.5,33,32.1,32.1,30.4,30.1
2009,30.6,34.9,35.6,36.2,34,33.1,32.3,33.7,32.8,32.3,31.7,32
