1901,31.6,33,34.8,35.1,33.5,32.3,31.2,31.1,30.7,30.4,30.2,30
1902,31.1,33.1,35.1,35.1,33.9,32.8,31.5,31.3,30.6,30.6,30.5,31
1903,31.7,32.6,35.7,35.8,34,31.9,31.2,30.8,30.2,30.2,29.3,27.9
1904,29.7,32.1,34.4,34.5,33.4,32.2,31.2,31.3,31,30.8,29.7,29.1
1905,32.5,33.6,34.7,35.5,33.7,32.3,31.4,31.7,31,30.8,30.6,32.4
1906,32.7,34.2,35,36.1,34.5,32.8,31.7,31.8,31.3,30.4,29.6,30.3
1907,31.4,33.1,34.2,34.8,33.2,32,31.3,31,30.9,30.7,30.5,28.7
1908,31.4,32.7,34.3,34.9,33.4,32.2,31.3,31.1,30.9,30.6,29.4,29.9
1909,31.4,33.2,34.6,35,33.2,32.4,31.1,31.4,31,30.9,29.7,29.3
1910,32,32.4,34,34.8,33.7,32.2,31.4,31.3,30.3,30.3,30.1,28.8
1911,30.9,32.4,34.5,35.2,33.7,32.3,31.4,31.7,31.2,30.8,31.4,31.2
1912,31.8,33.2,35.9,35.5,35.1,33.1,31.1,30.7,30.6,30.2,29.1,29.8
1913,30.8,33.2,35.1,35.6,32.8,32,30.6,30.8,30.7,30.3,29.4,29.8
1914,30.4,33.2,34.9,35.7,34.8,32.2,31,30.9,30.5,30.1,30.4,30.7
1915,31.3,33.9,35.1,35.5,33.8,32.6,31.3,31.5,30.4,30.2,29.4,28.1
1916,30,32.5,35.2,35.2,33.5,31.8,31.2,31,30.3,29.9,28.7,28.8
1917,31.1,32.6,33.7,35.5,33.7,31.7,30.8,30.6,30.1,29.6,29.2,28.9
1918,29.8,31.1,33.8,34.2,33.1,32.2,31.7,31.1,31,30.6,30.8,30.9
1919,31.8,33.4,35.7,35.5,33.9,31.9,31,30.9,30.5,30.3,29.7,30.2
1920,29.8,32.9,34.9,35.1,34.1,32.3,31,31.5,30.7,29.9,30.5,30.2
1921,30.6,32.3,34.8,34.7,33.2,32.1,30.5,30.8,30.1,30.1,29,29.6
1922,31.6,33.2,33.8,35.1,33.8,32.1,30.4,30.9,31,30.1,29.3,29.2
1923,30.6,31.8,34,34.2,32.6,31.6,30.2,30.2,30.2,30,30.2,30.3
1924,31.5,32.9,34.7,34.7,33.7,32,30.3,30.9,30.8,30,30.5,28.2
1925,31.4,32,34.4,34,33.6,31.9,31,31.1,30.6,29.8,30,28.6
1926,31.3,33.1,34.5,35.8,34.6,32.6,31.2,30.7,30.7,30,29.9,30.1
1927,31,32.9,35.2,34.3,33,31.9,30.8,30.8,30.6,29.9,30.2,30
1928,33,32.5,35.4,34.7,33.7,32,31.2,31.2,30.5,29.4,29.6,31
1929,32.3,32.9,33.9,34.6,34.5,32.3,30.9,31,30.6,30.3,29.7,31.1
1930,30.4,32.8,33.8,35.4,33.8,32.5,31,31.2,30.7,30.4,30.5,30.7
1931,32.4,33.4,35.8,36.3,34.3,32.8,31.4,31.3,30.6,29.2,29.6,30
1932,30.6,32.6,33.8,35.2,34.4,32.6,30.9,31.5,30.3,30.2,30.3,29.5
1933,30.3,33.8,34.4,35.4,34.2,32.9,31.1,31.6,30.8,30.2,29.2,30.1
1934,30.1,31.9,33.9,34.3,34,32.6,30.8,31.2,30.9,29.5,30.5,29.5
1935,32.3,33.9,35.7,35.6,33.6,32.7,31.2,31.3,30.5,30.8,31,30.1
1936,30.9,33.2,33.6,35.7,34,32.5,31.3,30.9,30.9,29.5,30.5,31.6
1937,32.7,33.8,36.3,36,33.3,32.2,30.8,31.2,30.3,30,29.8,30.8
1938,32.4,33.7,34.5,34.8,33.2,32.1,30.9,31.3,30.6,30,30,30.4
1939,31.8,34,34.8,35.3,33.7,32.3,31.7,31.4,30.9,31.2,30.5,27.4
1940,31.1,33.4,35.1,36.2,34.2,32.7,31.4,30.9,31.4,31.9,31.4,31.4
1941,34.8,34.6,36.1,36.9,34.8,32.3,31.4,31.6,31.8,30.8,31.3,31
1942,31.1,33.5,35.4,35.5,33.5,32.3,31.2,31.3,30.7,30.2,30.2,30.1
1943,31.2,33.1,35.1,34.3,33.5,32.1,31.1,31.4,30.3,30.3,29.8,29.6
1944,32.1,33.7,35.2,35.7,33.8,32.4,30.9,31.1,30.9,30.5,30,29
1945,31.8,33.7,34.3,35,33.6,32.4,31.4,31.7,30.9,30,31.1,30.9
1946,31.6,32.4,35,34.5,33.1,32.1,30.9,30.9,30.7,30.7,30.4,31.6
1947,34.1,33.6,35,34.2,34.3,32.3,31.1,31.6,31.2,30.6,30.1,30.7
1948,31.6,34,35.7,35.3,34.6,32.5,31.6,31.4,30.9,30.8,29.7,30.5
1949,31.2,33.5,35.5,35,34.4,33.1,31.6,31.4,30.7,30.4,30,30.9
1950,32.1,32.9,36,35.2,33.6,31.6,30.6,31.5,30.1,29.9,29.7,28.5
1951,31.6,33.5,34.9,35.2,33.2,31.9,31.2,31,31.4,30.3,30.5,29.6
1952,31.6,33.9,34.6,34.7,33.9,32.3,31.1,30.8,30.7,29.7,30.1,28.7
1953,32,33.4,35,35,33.6,32.1,31.4,31.3,30.7,31.7,29.9,29.4
1954,33.4,33.6,34.8,35.6,33.6,32.7,31.9,31.6,30,30.8,30.2,29.9
1955,30.6,34.3,35.7,34.9,33.7,31.5,31.3,31.7,31.2,30.7,28.9,29.6
1956,30.7,33.6,35.4,34.5,32.7,32,31.3,30.8,30.7,30.7,29.4,29.1
1957,31.8,33,34.1,35,35.5,33,31.4,31.3,30.6,30.3,31.3,31.4
1958,32.6,33.2,36.6,36.6,35.1,32.6,31.1,31.5,30.2,29.7,29.4,29.7
1959,31.9,34.5,33.8,35.8,34.6,34.1,31.3,31.3,30.7,30,31,31.2
1960,32.1,32.6,35.1,35.9,34,31.9,31.6,31.2,30.8,30.5,30.6,29.5
1961,30.8,33.1,35.4,35.3,33.2,32,31.1,31.3,30.5,30.3,30.4,30.6
1962,30.1,32.6,34.6,34.8,34,32.3,31.1,31.4,30.5,30.9,30.7,29.9
1963,28.8,32.4,34.5,35.8,34.6,32.7,31.3,31.2,31,31.1,31.4,30.1
1964,32.4,33.4,35.3,35.8,32.4,32.3,32.2,30.9,30.6,30.6,28.7,28.7
1965,30.6,33,34.2,35,33.4,32.1,31,31.7,29.7,31.4,31.2,31.6
1966,33.1,33.7,35.1,34.6,31.9,32.4,30.8,30.6,30.2,31.2,30.3,30.6
1967,29.7,32.6,34.7,34.6,33.4,32.5,30.4,30.8,29.8,29.6,30.4,28.9
1968,31.1,32.6,34.7,34.4,33.4,32.3,31.4,30.6,30.2,30.2,31.2,31.6
1969,33.1,32.8,35.2,35.5,34.3,32.5,30.6,31.6,30.9,31.1,29.3,28.8
1970,31.3,32.3,35.3,34.1,33.3,32.4,30.9,30.5,30.1,29.5,29.7,30.2
1971,29.7,31.6,33.5,35.1,34.4,31.1,30.9,31,31.2,29.4,28.5,30
1972,29.9,32,33.5,33,34.1,31.8,30.3,30.3,30.4,31.3,30.5,30.4
1973,31.5,33.6,35.3,36,34.1,33.1,31,31.6,31,30.2,28.9,29
1974,30.5,31.5,33.4,34.1,33.6,32.1,31.9,31,31.6,30.1,30.2,29.7
1975,31,33.1,34.2,35.1,33.5,31.4,31.1,30.9,31,29.6,30,27.9
1976,30.4,32.7,34,34.9,33.4,32.3,31,31.3,30.3,30.3,28.8,30.1
1977,31.9,32.1,34.9,34.8,34.3,33.6,31.3,31.3,30.2,31,30.5,30.8
1978,32.8,33.4,35.4,34.3,32.9,32.5,30.8,30.3,29.5,29.6,30.3,31
1979,33.3,34.5,36.5,34.7,32.6,32.1,30.7,30.9,30.7,30,30.6,31.1
1980,32.7,33.8,35.5,35,33.5,31.9,30.8,30.8,29.8,30.1,30,29.7
1981,30.3,32.8,34.2,33.5,33.1,31.2,30.8,31.5,32,30.2,29.8,28.6
1982,31.2,33.1,34.8,33.6,33.6,31.5,30.8,30.5,29.8,30.9,31.4,29.1
1983,31.4,33.7,35.4,36.9,35.3,32.3,32.2,31.9,31.8,30.4,29.3,29.3
1984,30.5,33.1,34.4,35.4,33,31.3,31.2,30.5,30.2,29.9,30.2,30.5
1985,32.3,33.9,34.8,33.9,32.7,31.4,30.8,31.2,30.1,30.4,30.9,30
1986,31,33.6,34.6,34.8,32.8,32.4,31,31.3,31,30.8,30.4,30.7
1987,32.5,34,35.6,35.9,34.1,32.9,31.7,31.9,30.9,32,31,29
1988,32.9,33.6,35.1,34.8,33.4,32.1,32,31.3,31.7,29.3,29.7,30
1989,33.1,33.5,34.1,35.4,33.5,32,31.6,31.4,31.1,30.6,30.9,30.9
1990,32.8,33.9,33.8,35.8,33.5,32.1,31.5,31.9,31.1,30.3,30.6,31.1
1991,33.5,34.5,36.1,36.6,35.1,33.2,31.5,31.1,30.9,30.4,30.9,31.2
1992,31.2,33.2,36.1,37.1,35.1,33.2,31.8,31.3,31.5,30.1,30.4,31.3
1993,31.8,33.4,35.1,35.1,34.6,33.7,31.4,31.5,31.3,31.2,31.4,29.9
1994,32.9,34.4,34.2,36.2,34.4,32.3,31.3,31.6,31,31.2,31.9,32.2
1995,32.8,33.1,35,36.6,34.7,34,32.2,32.5,31.6,31.5,30.6,30.4
1996,32.5,32.6,35.5,34.5,33.1,32.7,32,32.2,30.8,31,30.4,29.4
1997,31.7,32.5,35,34.6,34.4,33.6,31.6,32,32.1,32.6,32.3,32.9
1998,34.2,34.4,36.8,36.3,35.3,33.7,32.4,32.3,31.7,31.8,30.9,30.3
1999,31.8,33.5,34.7,34.7,32.8,31.9,31.1,32.2,31.7,31.5,30.1,28.4
2000,32.4,32.6,34.8,34.7,33.6,31.8,31.7,32.3,31.8,30.8,30.6,31.4
2001,33,34,33.7,36.7,34.3,32.2,32,32.1,32.1,32.2,29.6,30.7
2002,32.1,34.2,34.7,35.2,33.5,33,32.2,31.3,31.1,31.5,31.8,32.1
2003,32.3,33.9,34.7,36.2,34.5,32.9,31.6,32.1,31.7,31.7,32.3,30.4
2004,32.7,31.8,35.3,35.5,34.5,31.8,31.3,31.4,31.6,31.3,31.7,31.2
2005,32.3,34.9,34.5,35.7,33.1,32.9,31.8,31.6,32.2,28.6,31.3,29.6
2006,32.6,34,34.5,35.4,33.9,32.7,31.4,31.6,31.7,31.3,32,31.5
2007,32,33.6,35.3,35.8,32.6,30.8,31.7,31.1,31.4,30.9,29.8,31.8
2008,32.1,32.4,34.6,35.8,32.8,32.3,32.4,32.1,31.3,32.2,30.2,30
2009,30.8,34.1,34.3,35.1,33.5,32.5,32.1,32.6,31.8,31.9,31.3,32.5
