1901,33,36.2,38,39.8,40.8,36.6,32.7,32.2,32.7,33.6,32.2,31.1
1902,33,36.2,36.7,38.6,37.3,35.8,32.6,31.9,31.9,35.2,34.6,30.4
1903,31.2,36.2,39.3,38.8,39.2,35.7,33.6,31.6,31.8,34.5,35.4,31.3
1904,32.5,36.2,37.6,38.9,38.3,35,32.4,30.5,31.5,33.5,34.7,31.6
1905,32.9,35.4,37.6,37.9,37.7,35.9,32.6,31.3,32.8,34.2,33.5,32.3
1906,34,36,38.8,38.1,38.5,36.8,32.1,30.5,31.5,34,34.9,32.1
1907,32.6,34.7,37.3,37.7,36.8,34.5,31.9,30.3,31.4,33.2,32.3,30.4
1908,32.1,34.4,37.2,38.6,37.9,35.6,32.8,31.2,32.1,33.6,34.7,33.4
1909,32.3,34.7,38.4,38.3,39.2,36.2,33,31.3,32,33.9,33.5,33.1
1910,31.1,34.8,35.5,37.6,36.3,34,31.3,31.4,31.8,33.9,35.7,33.3
1911,31.4,33.9,33.7,36.2,35.4,33.1,32,31,31.9,34.1,34.1,32.3
1912,31.3,33.4,36,34.6,35.7,34.3,32.3,31.1,31.8,33.8,35,31.5
1913,31.9,34.2,36,37.1,35.6,35,31.5,31.2,31.5,33.8,34.9,33.3
1914,32.2,33.5,35.1,35.3,36.2,33.9,31.4,29.8,30.7,33.3,32.5,30.2
1915,32.3,33.3,34.6,36.4,36.1,36.3,32.9,31.1,31.8,35.2,34.7,33.4
1916,31.2,32.7,34.2,34.8,35.2,34.5,31.4,31.3,31.5,34,33.3,31.5
1917,34.1,35.2,38.4,38.4,38.4,35.3,33.8,31.3,31.5,33.4,32.8,31.2
1918,33.3,35.6,37.4,39.1,39.9,37.3,32.5,31.7,32.1,33.7,33.5,32
1919,33,37.1,39.1,38.4,38.5,37.1,33.3,32.3,32.5,34.3,36.4,32.4
1920,33.9,34.7,37.2,40,38.9,36,31.8,30.8,31.8,33.9,33.2,31
1921,31.5,32.6,34.7,37.2,36.4,34.9,30.9,30.5,32.2,33.9,33.4,30.6
1922,31.1,33.2,34.8,34.8,36,33.7,31.2,31.1,31.1,33.4,34,31.7
1923,31,34.3,34,36.3,36.7,33.9,31.4,30.7,31.6,33.5,33.2,32.4
1924,30.9,32.1,35.4,35.9,36.6,33.1,31.5,31.2,30.8,33.1,35.1,31.6
1925,30.9,32.6,34.2,35.6,37.4,33.5,31.8,30,30.6,32.3,34.6,32.6
1926,32.7,33.9,37.1,36.6,36.3,35.7,32,31.5,32.3,35.1,35.2,33
1927,31,34.8,34.1,36.8,36.4,34,31.1,30.8,31.5,33.3,34.9,32.1
1928,31.1,32,33.6,34.1,35.6,34.9,32.2,30.1,30.8,33.9,34,31.2
1929,32.2,33.1,33.3,34,34.6,34.4,32,30.3,30.2,32.4,33.2,32
1930,30.4,30.9,32.6,34.4,33.3,32.8,31.5,30.6,31.4,34,35.5,31.6
1931,31.4,32.9,35.3,36.5,36.1,33.1,31.5,32.3,31.5,34.8,34.7,31.9
1932,32.1,32.4,34.6,36.7,36.8,35.5,32.1,30.7,31.8,34.1,33.7,29.2
1933,31,32.9,36.2,37.7,36.7,34.2,31.5,30.9,31.7,32.9,32.6,31.5
1934,31.7,33.5,35.9,36.6,36.7,34.2,31.3,30.3,31.4,32.3,32.2,31
1935,31.6,32.4,33.7,35.9,36.4,34.4,32.1,30.3,31.7,32.3,32.7,32.5
1936,33.2,33.1,35.6,36.9,36.2,35.6,32.4,30.9,32.3,34.8,33.9,32.7
1937,33.1,35.9,37.3,37.2,37.8,36,32.3,31.7,31.9,33.7,35.5,34.1
1938,32.7,35.6,37.6,38.2,38.9,35.6,32.4,31.5,31.7,33.4,34.8,31.1
1939,32.3,33.4,36.1,37.5,37.5,35.8,32.3,30.8,31.7,33.1,33.9,32.4
1940,32.3,33.8,37.6,37,38,35.9,32.5,30.9,32.1,32.7,33.8,31.6
1941,32.3,34.5,36.8,38.2,38.4,34.5,32.4,32.1,32,34.4,35,32
1942,31.5,33.5,36.8,37.8,37.6,36,32.6,30.7,31.9,34,34.1,32.2
1943,31.2,34,36,38,38.7,36,32.2,30.6,31.4,33.3,33.9,31
1944,32.7,34.1,37.2,38.1,38.8,36.1,33,31.8,32.1,34.2,35.1,31.5
1945,33.2,34.9,38.9,39.9,38.3,35.3,32.4,31.2,31.8,34.4,34.6,33.7
1946,30.7,34.5,37.2,36.8,37.7,34.9,32,31,31.6,33.2,33.1,30.6
1947,30.5,32.8,37.5,37.9,37.1,34.3,32.2,31.2,31.5,33.6,33.1,31.9
1948,31,34.8,37.7,36.2,38,34.9,31.8,31,32,33.4,33.3,31.2
1949,31.1,34.3,35.6,38.5,36.2,34.9,31.5,30,32.1,33.9,33.8,32.4
1950,31.4,34.2,38.1,37.7,37.9,35,31.7,30.6,31.1,33.1,33.4,32.1
1951,32,33.2,35.6,37.2,38.2,34.8,32.1,31.4,31.5,32.7,32.9,30.2
1952,29.5,33.8,36.2,38.1,37.1,35.5,31.6,30.8,31,33.2,33.9,31.3
1953,32.6,33.4,36.3,36.5,36.9,34.3,31.2,31.1,31.5,33.1,33.6,31.7
1954,31.6,31,36.3,37.9,38.7,35.1,31.2,30.4,31.8,33.9,34.4,31.7
1955,32.8,34.5,35.4,38.5,38.6,35,31.2,30.6,31.1,33.6,34.2,31.6
1956,32.5,32.7,35.9,36.4,37.8,34.4,31.3,30.5,30.7,33,33.7,31.1
1957,30.3,34.9,35.8,36.8,35.9,34.3,31.6,30.8,31.2,32.6,33.5,31.8
1958,31.6,33.9,37.3,38.6,38.3,35.4,31.8,30,31.7,32.9,33.6,31.2
1959,31.5,33.9,35.7,36.6,37.1,34.3,31.5,31.8,31.4,33.4,33.2,30.4
1960,31.8,34.5,36.1,37.4,37.6,34.7,31.5,31.5,31.4,33.4,33.4,31.1
1961,31.8,34.3,36.2,38.5,38.4,35.1,32,30.6,31.4,32.7,32.9,31.2
1962,31.6,34.6,37.4,37,37.9,34.2,32.1,30.5,31.3,33.2,33.8,31
1963,32.4,34.7,37.6,36.9,37.3,35.2,32.2,31.2,31.9,32.8,33.5,30.5
1964,32,35.1,36.3,37.7,39.4,35.7,31.8,30.6,30.7,32.8,33.2,30.6
1965,29.6,32.6,36.9,37.1,37.8,34.5,32,31.1,31.3,33.3,33.7,30.1
1966,31.3,34.7,36.8,37.5,38.2,35,32.7,31.4,31,32.9,33.8,31.7
1967,32.2,33.4,36.1,36.5,36.9,34.7,31.6,30.7,30.7,32.8,31.3,29.9
1968,30.8,32.9,35.3,35.5,37.3,33.4,31.9,32,31.6,33.4,33.8,32.8
1969,33.8,35,38.1,41.2,39.8,35.7,32.2,31.2,31.8,33,34.1,32.2
1970,32.2,34.7,37.5,39.3,38,35.9,32.4,31,31.9,34.5,34,32.5
1971,32.9,33.7,35.5,36.8,37.1,34.3,31.7,30.6,31.6,34,33.3,32.4
1972,31.8,34.1,36.6,36.2,36.1,35,32.3,31.9,31.8,33.8,35.2,30.7
1973,33.5,33.9,36.8,37.8,37.1,36,32.1,31,31.8,34.3,33.8,32.2
1974,33,34.5,38.1,36.3,36.5,34.1,31.7,30.8,31.3,32.9,33,31.6
1975,33.3,34.7,35.8,37.4,36.4,34.7,31.2,30.8,30.7,32.9,32.9,32.1
1976,31.2,33.9,36.1,36.7,37,34.5,31.7,31.1,31.5,33.8,34.1,30.8
1977,32,35.4,37.6,38.1,36.7,35.3,32.3,31.4,31.9,33.2,34.7,32.5
1978,32.6,33.7,37,37.2,37.8,35.1,31.6,30.9,30.9,32.9,33.6,31.1
1979,30.7,35.6,36.3,37.9,37.7,34.5,32,31.3,31.4,33.6,34.7,32.4
1980,31.7,34.5,36.1,38.2,37,34.3,31.9,31.3,31.5,33.7,32.7,31
1981,32.7,33.3,37.6,37.7,38,35.7,31.9,31.4,31.9,34,34.4,32.9
1982,33.3,32.9,36.3,37.4,37.1,34.9,32.6,31.2,31.6,32.8,33.7,29.9
1983,33.3,34.8,38.3,36.9,37.9,35.4,33,32.2,32.4,34.9,34,32.7
1984,31.6,36,35.5,36.9,37.9,35.2,31.5,31,31.6,33.7,33.5,32.3
1985,30.6,34.4,36.9,36.9,35.5,34.1,31.4,30.8,30.8,33.7,33.8,30.5
1986,30.9,33.5,36.7,38.1,38,34.6,32.4,31.4,31.7,33.5,32.9,31.2
1987,32.1,34.3,37.4,38.9,38.9,36,33.5,32.2,32.4,33.6,34.6,32.4
1988,32.1,34.9,38,39,37.6,35.2,32.5,31.3,31.9,34.3,33.6,31.1
1989,32.1,34,36.6,38,37.8,35.3,31.9,31.2,31.8,33.7,33.8,32.3
1990,31.3,37.3,38.5,38.2,38.7,34.5,32.5,32,32.7,34.6,34.9,33
1991,31.7,33.9,36.9,37.9,36.1,35.2,32.3,31.4,32.2,34.3,35.5,33.3
1992,33.2,33.6,37.9,37.6,38,35.2,31.9,31.6,31.8,34.2,33.6,33
1993,32.6,34.5,36.7,37.8,38.9,35.3,32.3,31.6,32,33.9,32.1,32.3
1994,32.1,36.3,37.7,38.5,40.7,35.2,32.9,30.8,31.7,33.3,34.5,33
1995,32.9,35.5,36.1,37.5,37.6,34.9,32.1,31.6,32.1,34.2,35,31.2
1996,33.5,35,36.5,37.7,37.2,35.5,32.3,31.6,32.4,34.3,34.7,32.2
1997,34.1,38.5,38,37.8,39.4,35.5,32.6,31.9,32.2,34.5,36.1,32.9
1998,33.5,36.8,38.8,38.5,38.7,35.2,32.4,31.5,32.1,34.8,35.4,32.4
1999,32.3,34.8,36.2,37.3,38.5,35.6,32.8,31.5,31.9,33.1,34.8,32.9
2000,32.7,36.1,38.1,38.7,36.5,34.9,31.8,30.7,32,33,33,32.1
2001,33.1,36.2,38,37.7,36.4,35.2,32.2,31.9,32.2,34.6,34,34
2002,33.5,35.6,36.1,36.8,37.5,35.5,32.9,32,32.3,34.7,35.5,33.8
2003,32.7,33.4,37.7,38,37.3,34.7,32.1,31.5,32,34,34.6,33.5
2004,32.8,35,37.6,38,38.2,34.8,32.1,31.6,32.4,35.3,35.2,33.2
2005,33.8,34.5,38.3,38.8,40.2,36.6,32.8,32,32.4,34.6,35.8,34.6
2006,32.9,34.4,37.6,37.9,38.4,35.9,32.7,32,32.1,34.4,36.1,32.6
2007,33.2,35.4,37.8,37.8,38.2,34.9,32.2,31.5,32.1,35.2,36.3,32.5
2008,33.4,36,38.3,38.4,39,35.8,32.5,31.3,32.2,33.3,34.9,32.9
2009,31.5,33,36.5,37.4,37.6,35.4,32.9,31.6,32.2,34.7,33.2,34
