1901,31.3,32.1,33.1,32.5,31.9,31.3,30.9,30.8,30,30.7,30.5,30.4
1902,29.7,31.7,32,32.6,31.5,31.3,30.8,30.5,30.1,30.3,30.2,30.8
1903,30.7,30.8,32.6,33.3,32.1,30.3,30.4,30.2,29.9,30.2,29.3,28.2
1904,28.8,29.9,31.6,31.8,31.3,30.7,30.4,30.7,30.4,30.7,29.6,29.3
1905,30.7,31.7,32.4,33.2,31.3,30.7,30.7,30.9,30.6,30.8,30.5,31.8
1906,31.5,31.9,32.2,33.7,32.6,31.1,30.8,30.9,30.8,30.4,29.6,30.2
1907,30.1,31.1,31.3,32.5,31,30.6,30.4,30.2,30.4,30.3,30.1,28.8
1908,30,30.6,31.7,32.7,31.2,30.6,30.3,30.2,30.2,30.4,29.2,29.8
1909,30.1,31.1,31.8,32.3,31.1,30.6,30.2,30.4,30.3,30.6,29.4,29.2
1910,30.5,30.4,31.1,32.2,31.4,30.4,30.6,30.5,29.8,30.2,29.9,29
1911,30.2,31.2,32.1,32.7,31.7,31,31,31,30.7,30.7,31.6,31.2
1912,30.8,31.7,32.8,33.4,32.4,31.1,30.6,30.5,30.5,30.6,30,30.5
1913,30.6,31.8,32.7,33.2,31.9,30.6,30.4,30.8,30.5,30.8,30.3,30.5
1914,30.3,31.5,32.4,33.2,32.6,30.8,30.6,30.6,30.9,31.2,31.3,31.1
1915,31,32.2,32.8,33.3,32.2,30.5,31,30.4,30.8,30.7,30.3,29.3
1916,29.6,31.1,32.6,33.2,31.7,30.8,30.6,30.6,30.5,30.7,29.9,29.6
1917,29.9,31,31.6,33.1,31.4,30.7,30.5,30.3,30.2,30.3,30.1,29.6
1918,29.6,29.7,31.8,32.4,31.1,30.5,31,30.7,30.8,30.6,30.9,30.6
1919,31.4,31.8,32.7,33.3,32.2,30.9,30.7,31.1,30.9,31.1,30.4,30.5
1920,30,30.9,32.7,33,32,31,30.8,30.7,30.6,30.4,30.7,29.9
1921,30.6,30.7,32.4,32.9,31.4,30.5,30.3,30.6,30.2,30.4,29.7,30.3
1922,30.7,31.2,31.4,32.2,31.6,30.7,30.2,30.4,30.7,30.5,30,29.8
1923,30.1,30.3,31.9,32.4,31.3,30.7,29.8,30.3,30,30.5,30.5,30.8
1924,30.9,31,32.4,32.7,31.6,30.8,30.1,30.9,29.9,29.7,30.4,29.2
1925,30.2,30.3,31.8,32.3,31.8,30.8,30.8,30.6,30.7,30.3,30.4,29.6
1926,30.4,31.4,32.3,33.6,32.7,31.3,30.8,30.6,30.4,30.4,30.4,30.3
1927,30.3,31.2,32.5,32.3,31,30.7,30.6,30.6,30.7,30.3,30.3,30.3
1928,31.1,31.2,31.9,32.1,31.6,30.7,30.7,30.5,30.5,30.3,30.4,30.9
1929,30.7,30.7,31.4,32.5,31.6,30.4,30.7,30.6,30.7,30.1,30.1,30.7
1930,31,31.3,31.6,32.6,32.2,30.8,30.8,31.1,30.7,31,30.3,30.5
1931,30.8,31.6,33.4,33.5,32.4,31.1,30.7,30.9,30.5,30.1,30.5,30.1
1932,30.1,31.4,32.4,32.6,32.3,30.7,30.6,30.9,30.4,30.6,30.1,30
1933,30.7,31.8,32.5,32.8,32.6,31.3,30.6,31.2,30.7,30.4,29.8,30.2
1934,30.1,30.2,31.9,32.7,32.1,31,30.9,30.4,30.8,30.6,30.3,29.4
1935,30.8,31.6,32.8,33,31.4,30.7,30.7,30.7,30.6,31,30.4,30.6
1936,30,31.1,32.2,32.9,32.1,30.8,30.6,30.3,30.8,30.4,30.5,31.4
1937,31,32.2,32.9,33,31,30.7,30.4,30.8,30.6,30.3,30.5,29.7
1938,30.5,31.3,31.5,32.2,31.3,30.3,30.3,30.3,30,30.5,29.7,30.7
1939,31.9,30.3,31.6,32.3,31.8,29.9,29.9,30.6,30.4,29.9,30,28.2
1940,28.5,30.9,31.6,33.3,31.8,30.8,30.2,29.7,30.6,30.8,30.6,30.6
1941,31.9,31.8,31.9,33.8,31.8,30.5,30.6,30.2,30.6,30.5,30.6,30.6
1942,29.8,31.3,31.9,31.9,30.9,30.4,30,29.8,29.8,29.5,29.6,29.8
1943,29.6,30.9,31.8,31.8,31.3,30.5,30.3,30.7,30,30,29.6,29.2
1944,30.5,31.3,31.9,32.9,31.4,30.6,29.9,30.1,30.2,30.2,30,28.9
1945,30.3,31.2,31.1,32.1,31.2,30.4,30.3,30.5,30.2,29.7,30.7,30.5
1946,30.8,31.6,33.2,32.7,31.7,31,31.1,30.5,30.8,31,31,31.6
1947,31.8,32.3,32.7,33.2,32.7,31.2,30.7,30.1,31,31,30.8,30.7
1948,30.7,31.5,32.6,32.5,31.8,30.8,30.8,30.6,30.7,30.8,30,30.1
1949,27.9,31.5,32.9,32.8,32.3,30.6,30.4,31.1,30.6,30.2,30.4,30.9
1950,31.1,31.4,33.3,32.9,32,30.5,30.1,31.1,29.1,30.6,30.7,29.7
1951,29.6,30.4,31.7,32.7,30.9,30.8,29.9,30.3,30.2,29.9,30.1,28.7
1952,30.1,31,31.3,32.3,32.1,30.4,30.5,29.6,30.7,29.9,28.9,28.9
1953,29.3,29.8,31.3,32.3,30.8,30.7,30.2,30.5,30.2,31.1,29.7,29.4
1954,30.5,30.9,31.7,32.7,31.2,30.7,30.3,29.9,28.8,30,30,29.4
1955,28.9,30.6,32.2,32.1,30.8,29.6,30.1,30.4,31.3,29.6,28.3,29.2
1956,29.3,30.9,31.9,31.5,30.7,30.1,29.7,30,29.6,29.4,29.1,28.9
1957,29.7,30.5,31.4,33,32.3,30.9,30.1,30,29.6,29.9,30.7,30.2
1958,30.7,31.2,31.9,33.3,32.1,30.1,30.2,30.4,30.4,30,29.4,29.4
1959,30.4,31.3,31.2,32,31.9,31.2,29.7,30.1,30,29.8,30.4,30.4
1960,30.1,30.3,31.3,32.1,31.4,30.2,30.6,30.3,29.7,30.3,29.7,29.7
1961,29.4,30.6,31.1,31.7,30.1,30.3,29.8,29.9,29.4,29.8,29.9,29.9
1962,29.1,30,30.9,32.4,31.6,30.3,29.6,29.5,29.6,30.2,30.8,29.4
1963,28,30,31,32.1,32.6,30.4,30.6,29.8,29.8,29.9,30.3,29.9
1964,30.5,30.6,31.4,32.7,30.6,30.6,30.7,29.7,29.7,29.9,28.9,29.1
1965,29.1,30.3,30.8,31.8,31.1,30.3,30.2,30.5,29.3,30.3,30.4,29.5
1966,30.5,31,31.2,32.3,30.5,31.3,30.2,30.3,30.4,30.1,29.5,29.6
1967,28.8,30.6,31.5,32.4,31.2,30.6,30.1,29.6,30.7,30.1,30.8,29.9
1968,30.3,30.9,32.1,32.3,31.2,31,30,30,29.7,30.8,31.3,31.1
1969,30.4,30.7,32.4,33.2,32.5,30.4,30.5,31.2,29.5,31.1,29.6,30.1
1970,30.7,31.6,32.5,32.7,32.2,30.7,30.2,30.4,30.1,29.8,29.4,29.5
1971,29.5,29.9,30.9,32.6,31.1,29.5,29.6,30.2,30.2,29,29.6,29.8
1972,29.6,30.9,31.5,31.7,31.7,30.5,30.1,30.8,30.8,31.2,30.1,30.9
1973,31.3,32,32.4,33.6,32.1,30.7,29.9,30.5,29.8,30,29.3,28.3
1974,29.6,30,31.3,31.7,31,30.3,30.4,30,30.5,29.7,29.2,28.9
1975,28.9,30.1,31.1,32,30.9,28.9,30.3,29.8,29.7,29.4,29,28.1
1976,30.3,30,31.1,32.1,29.9,30,30,30.4,29.7,30.5,28.8,29.7
1977,29.6,29.9,31.6,33.1,31.9,31.1,30.6,29.9,29.5,30.7,29.4,29.8
1978,30.1,30.9,31.7,31.8,30.9,29.6,29.6,29.4,28.8,29.9,30.6,30.4
1979,31.3,31.1,32,32.1,31.5,31,29.8,30.6,30.8,30.8,30.2,30.7
1980,31,31.3,31.6,32.8,31.7,30.6,30,29.7,30.1,30.2,29.9,29.6
1981,29.7,30.5,32.6,31.7,30.9,30.1,30,29.9,30.8,30.3,28.9,29
1982,30.5,31.1,31.7,31.3,31.5,30.4,29.4,29.7,30.2,30.4,30.3,29.5
1983,30.1,31.7,32.7,33.8,32.1,30.8,30.3,30.2,30.1,29.7,29.3,29.4
1984,29.1,30,31.3,31.9,30.9,29.5,29.9,29.7,29.7,29.7,30.6,29.5
1985,30.4,30.8,31.2,31.8,31,29.6,29.8,29.8,29.4,29.6,29.8,29.7
1986,29.1,31,31.2,32.9,30.7,29.9,30,29.8,29.8,29.6,29.6,30.2
1987,30.5,31.4,32.3,33.7,31.7,31.1,31.4,30.5,31.5,31.2,29.9,29.2
1988,30.5,31.2,32.1,32.5,30.8,30.7,30.1,30.6,29.7,29.3,28.7,29.7
1989,30.3,30.8,30.7,31.2,30.2,30,30.4,29.5,30.6,29.2,30,30.3
1990,31,31.8,32.8,32.6,31.1,30.6,30.3,30.2,29.8,30.2,29.7,30.2
1991,31.2,31.1,32.1,32.5,32.1,31.7,30.7,30.4,29.7,30.4,30.6,30.2
1992,29.6,30.6,32.7,33.3,32.8,30.6,30.7,30.3,30.6,29.6,29.4,30.2
1993,30,30.8,31.2,32,32.3,31.4,30.1,30.9,29.8,30.3,30.2,29.4
1994,30.9,31.2,31.3,32.2,31.1,30.7,30.4,30.1,29.6,31.3,30.5,31.3
1995,30.6,31.1,32,33.2,32.3,31.5,31,30.1,29.4,30.4,29,29.6
1996,30.5,30.3,32.9,31.8,31.2,31.7,31,31,30.1,29.8,30,29.2
1997,30.2,30,32.1,32.2,31.9,31.4,30.5,30.2,31.3,31.1,30.4,31
1998,31.9,32.1,33.2,33.5,33.1,31.5,31.2,31.1,30.7,29.7,29.2,29.2
1999,29.4,29.7,31.2,31.2,31,30.4,29.7,30.4,31.1,29.7,29.8,28.2
2000,30,30.4,30.9,30.5,30.5,30.5,30.7,30.6,31.3,30.1,30.2,30.3
2001,30.3,31.8,31.3,32.6,31,30.2,30.4,30.5,31.3,30.3,30.1,30.2
2002,30.5,31.5,32.4,32.7,31.6,31.6,31,30.4,30.2,31.2,30.4,30.4
2003,30.8,31.7,32.3,32.4,32.2,31.5,30.1,31.4,30.7,30.2,31.5,30.2
2004,31.7,31.3,32.5,33.6,31.5,31.1,30.6,30.3,31.2,30.9,30.5,31.1
2005,31,32.6,32.7,33.8,32.4,31.2,30.9,31.6,30.6,30.3,30.2,29.2
2006,31,31.2,32.3,32.7,31.3,31.2,30.4,30.4,30.6,31,31.9,30.7
2007,30.6,31.4,32.6,32.5,31.3,30.3,29.9,30.9,30.4,29.5,30,30.7
2008,30.7,30.6,31.2,31.8,30.5,30.2,30.2,31.2,30.3,31.2,30.3,30.4
2009,29.6,31.4,31.7,32.3,31.5,31.6,30.5,30.9,30.1,31.1,31.4,31.2
