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