1901,30.3,32,31.3,31.5,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1902,30.7,31.6,31.6,31.4,30.3,29,27.6,27.5,28.3,29.2,30,30.2
1903,30.9,32.3,31.9,31.6,30.2,28.6,27.6,27.4,28.3,29.2,30,30.2
1904,30.7,31.9,31.4,31.4,30.1,28.9,27.6,26.9,28.3,29.2,30,30.2
1905,30.6,31.6,31.7,31.9,30.5,28.6,27.6,27.4,28.3,29.1,30.3,30.5
1906,30.3,32.1,32.2,32.8,30.2,29.1,27.5,27.2,28.7,29.4,30.2,30.6
1907,30.5,31.8,31.8,31.6,30.7,28.9,27.7,27.7,28.4,29.6,30,29.9
1908,30.4,31.6,31.7,31.8,30.7,28.6,27.8,26.5,28.4,29.1,29.8,30
1909,30.7,32.4,32.6,32,30.2,29.1,27.3,27.5,28.3,28.9,30.1,30.2
1910,30,31.9,31.2,31.1,30.1,29.9,27.8,27.3,28.5,29.2,30,30.2
1911,30.3,31.9,32.1,31.8,30.4,29.1,27.6,27.4,28.3,29.2,30.1,30
1912,30.9,32.5,32.3,32.5,30.8,29.7,27.8,27.8,28.6,29.2,29.9,30.2
1913,30.6,31.8,31.1,31.3,30.3,29.1,28.1,27.9,28.9,29.2,30,30.2
1914,31.7,32.1,32,31.9,30.8,29.3,28,27.5,28.6,29.5,30.6,30.3
1915,30.7,32.2,31.9,31.7,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1916,30.7,32.2,31.9,31.7,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1917,30.7,32.2,31.9,31.7,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1918,30.7,32.2,31.9,31.7,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1919,30.7,32.2,31.9,31.7,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1920,30.7,32.2,31.9,31.7,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1921,30.7,32.2,31.9,31.7,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1922,30.7,32.2,31.9,31.7,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1923,31.4,32,31.5,30.9,30.3,29.1,27.3,26.8,28.3,29.4,30.4,30.7
1924,30.8,33.1,31.7,31.5,30.5,29,27,26.7,27.5,29.1,29.9,30
1925,29.2,31.4,31.5,31.5,30,28.6,27.5,26.8,28.2,28.8,30.3,30.2
1926,31.1,32.1,31.7,31.3,30,28.8,27.7,27.8,29.1,29.7,30.6,30.8
1927,30.8,32.5,31.2,31.4,30.6,29.1,27.5,26.8,28.8,29.3,30.3,30.9
1928,30.9,31.4,31.3,30.8,29.9,28.6,27.6,26.5,28.4,29.2,30.2,29.9
1929,30.2,32.1,31,30.6,30.3,28.4,27.1,26.3,27.7,28.9,29.9,29.1
1930,30.3,32.7,31.9,31.8,30.4,28.9,27.6,27.5,28.6,29.5,30.7,31.6
1931,31.1,33.2,31.6,32.8,30.7,29.1,27.8,27.4,28.2,30,31.1,31.5
1932,30.7,32.8,32.9,32.5,30.6,29.1,27.5,27.6,28.5,29.8,30.9,30.8
1933,31.4,32.8,32.5,32,30.1,28.7,27.5,27.1,28.4,29.1,31,30.8
1934,30.8,32.2,31.9,31.6,30.4,29.1,27.7,27.1,28.6,29.9,31.3,30.7
1935,31.7,32.9,33.1,32.1,30.7,28.7,27.7,27.1,28.3,28.9,30.7,30.8
1936,30.5,32.8,33.3,31.2,30.2,28.8,27,26.5,27.9,29.3,30.7,30.1
1937,30.6,32.4,32.4,31.8,30.3,29.3,27.5,27.4,28.5,30.2,30.8,31
1938,31.1,32.7,32.1,32.6,31.3,29.8,27.9,27.1,28.4,29.7,31.4,30
1939,31.4,33.1,32.8,31.2,30.4,29,27.8,27.4,28.3,29.8,30.6,31.4
1940,30.7,32.2,31.9,31.7,30.3,29,27.6,27.3,28.3,29.2,30,30.2
1941,32.8,32.8,33.4,32.7,31.5,30,27.6,27.6,28.9,30.1,30.6,31.2
1942,32.4,33.8,32.6,32.4,30,29.8,27.8,27,28.9,29.8,30.7,30.6
1943,31.3,32.3,32.1,31.8,29.5,28.1,27.2,27,27.9,29.7,31,31.2
1944,30,32.2,32.2,31.5,30.6,29.9,28.1,27,28.7,29.7,30.3,31.1
1945,32.1,31.8,31.5,31.6,30.1,29.8,28,26.8,28.6,29.3,30.3,29.7
1946,32.2,32.2,32.2,32.4,30.1,28.7,27.4,26.6,27.5,28.8,30.4,30
1947,31.1,34.2,31.8,32,30.8,29.9,28.1,27.8,28.5,29.7,29.9,30.7
1948,31,32.1,31,31.6,30,28.8,27.3,27.2,28.5,29.1,29.9,30.5
1949,31.2,32.3,32.7,32.2,31,30.1,28,27.3,29.1,29.6,30.5,29.7
1950,31.5,31.3,31.6,31.7,30.5,30.4,27.3,26.4,27.6,28.7,29.8,30.6
1951,30.1,31.1,31.5,31.6,29.8,29.3,27.3,27.6,28,28.9,29.5,31.4
1952,30.7,31.6,31.5,31.7,29.9,29.3,26.9,26.8,27.6,28.6,28.8,30.4
1953,30.3,31.3,31.2,31.1,29.3,28.6,26.9,26.9,27.9,28.7,29.3,30.1
1954,30.4,31.2,31.2,31.9,29.4,28.9,27.2,26.3,27.6,28.4,29.6,30.5
1955,30.2,31.4,31,31.4,29.5,28.6,26.7,26.7,27.6,28.3,29.1,29.9
1956,29.7,31.6,31.7,31.6,29.6,28.6,27.3,26.5,27.3,28.1,28.9,30.2
1957,29.8,31.3,30.9,31.9,30,28.9,27,27.5,27.8,28.5,29.5,30.8
1958,31,31.5,31.7,32.3,29.8,28.8,27.4,27.3,27.6,28.5,29.6,30.9
1959,30.3,31.6,31.5,32.2,29.6,28.8,27.2,27.5,27.7,28.9,29.4,30.8
1960,30.4,31.7,31.2,31.5,29.6,29.2,27.2,28.1,27.9,28.8,29.5,31.1
1961,29.8,31.7,31.9,31.8,29.8,28.4,26.6,27.9,27.8,29,29.7,30.7
1962,30.5,32.5,30.9,31.8,29.6,28.5,27.2,27.4,27.8,28.9,29.6,29.8
1963,30.9,31.5,31.3,31.9,30.3,30.5,28.2,27.7,29.1,29.5,30.3,30.7
1964,30.8,32.7,31.7,32.2,30,29.2,27.4,27.1,27.5,28.9,29.3,29
1965,28.9,31.1,31.6,31.5,30.4,28.7,27.9,27.7,28.2,29.7,30.9,30.8
1966,31.3,32.4,31.9,32.1,29.5,29.1,28.5,27.7,28,28.9,29.4,30.5
1967,30.5,32,31.7,32.2,29.9,28.6,26.8,26.7,27.8,28.1,29.4,30.3
1968,29.6,32.2,31.2,31.5,29.8,28.7,27.3,28.2,28.7,30,29.1,29.7
1969,31,33.7,31.5,32.2,30.3,30,27.4,28.1,28.4,29.1,30.2,30.7
1970,30.5,32,32.2,32.2,30.2,29.7,27.2,27.3,28.1,29,30.5,30.5
1971,30.5,32.1,31.8,31.4,31,29,27.6,26.7,27.9,28.9,29.7,29.2
1972,31.3,32.5,31.6,31.3,30.4,28.7,28,27,28.9,29.8,30.3,30.4
1973,30.8,32.9,31.8,32.3,30.8,29.2,28.7,27.3,28.7,29.4,30.6,30
1974,30.3,31.4,32,31,30.1,28.7,27.3,27,27.8,28.8,29.7,29.7
1975,30.5,31.7,31.3,31.1,29.9,28.7,27.7,26,28.2,28.9,29,29.5
1976,30.2,30.8,30.8,30.4,30,27.9,27.1,26.3,28.7,28.8,28.8,29.8
1977,30,31.9,31.8,31.8,31.2,28.3,27.4,26.7,28,29.4,30.4,29.7
1978,31.7,32.5,31.6,30.3,30.3,28.5,27.4,27,28.5,28.8,30.1,31.1
1979,31.7,32.5,31.9,31.5,30.6,28.6,27.6,26.5,28.7,29.5,30.1,30
1980,31.5,32.1,32,31.6,30.4,29,27.8,26.7,29,30,30.4,29
1981,30.6,33.1,32.1,32.1,30.2,29.5,26.8,27,28.5,29,29.9,31.2
1982,30.5,31.8,31.7,32.1,30.9,28.5,27,26.4,27.9,29,29.5,30.8
1983,29.6,34,33.2,32.1,30.7,28.9,27,27.1,28.5,29.2,30,29.5
1984,31.4,32.1,31.6,32.2,29.7,29.1,28.4,28.4,28.4,29,29.9,30.2
1985,30.7,32.6,31.9,31,30.1,28.8,28,27.7,28.8,29.5,30.4,29.4
1986,30.7,32.2,31.1,31.8,30.9,29,26.7,27.2,28.4,28.8,29.9,29.9
1987,32.1,33.2,31.6,32.5,31.2,30.1,28.6,28,29.3,29.1,31.2,31.2
1988,30.7,32.9,32.2,31.9,30.9,28.9,27.7,27.1,27.7,29.2,31,29.4
1989,31.1,32.9,31.9,30.9,30.9,29.7,27.7,28.3,28.4,28.7,30.8,30.7
1990,30.6,32.1,33.1,31.7,30.2,30,27.1,27,28.6,29.4,30.3,29.6
1991,31.1,32.1,32,31.5,30.1,29.9,27.9,27.1,28.9,28.7,30.2,30
1992,30.7,33.3,32.5,32.2,30.2,28.8,27.3,27.3,27.8,28.9,30.4,30.8
1993,30.9,32.7,32.1,32,30.9,28.9,27.5,27.6,28.9,29.7,30.9,30.6
1994,30.5,31.8,32.1,31.8,30.6,29.3,27.5,27.3,28.2,29.4,30.9,30.1
1995,31.9,32.1,30.9,32.3,30.9,29.7,28.7,27.7,28.7,29.9,31.3,31.2
1996,31.2,33.6,32.7,31.6,29.4,29.2,28.7,27.5,28.5,29.5,30,30.3
1997,30.9,32.4,31.6,30.6,30.3,29.2,27.2,28.2,29.7,30.3,31.2,30.6
1998,31.5,34.2,34,33,31,30.5,27.8,27.4,29,29.8,31.4,31.1
1999,31,32.8,32.8,31.9,30.4,29.5,27.8,27.6,28,28.6,30.6,31.3
2000,31,31.8,32.4,31.9,31.3,29.3,27.6,27.3,28.6,29.9,30.8,31.1
2001,30.7,32.2,32,31.5,30.6,29.3,28.1,26.8,27.5,28.4,31.3,31.3
2002,30.6,32.5,31.8,31.7,31.1,29.4,28.1,27.8,28.5,28.4,30.9,30.9
2003,31.4,33.8,32.3,32.3,30.9,29,27.9,27.6,29.1,29.9,31.1,30.7
2004,31.3,32.4,32.5,31.9,30.3,28.9,27.4,27.5,28.8,29.7,30.7,31.5
2005,31.2,34.1,33.6,32.2,30.7,28.6,27.5,27.6,29,30.3,30.6,31.3
2006,31.8,32.9,31.8,32,30.8,29.7,28.4,27.7,28.6,29.8,30.4,29.8
2007,30.7,32.9,32.1,31.3,30.7,29.2,28.1,28.1,28.8,29.4,31,30.9
2008,30.2,31.9,31.9,31.6,30.2,29.4,27.8,27.7,28.9,29.8,31.2,31.2
2009,31.5,32.8,32.5,32.7,31.4,29.6,27.8,27.6,28.9,29.5,30,31.4
