1901,29.8,29.3,31.1,32.8,33.5,32.3,31.5,30.7,31.4,30.8,30.2,28.8
1902,29.9,28.2,31.2,32.6,33.4,32.2,31.1,30.9,30.5,30.6,29.9,29.5
1903,29.5,28.7,31.2,32.4,33.6,33.4,31.7,32.1,31.6,30.4,29.6,28.1
1904,29,28.5,30.6,31.1,32.3,31.1,29.9,30.5,30,30.2,28.8,27.9
1905,29.5,29.3,31.3,32.3,33.1,31.2,29.9,30.7,29.8,29.9,29.1,29.2
1906,29.3,30.4,31.3,33.5,32.7,32,31.6,31.3,29.9,29.5,28.4,28.7
1907,28.6,29,30.8,32.2,33.3,32,30.8,29.8,29.9,30.6,29.8,28.1
1908,27.8,28.7,29.9,32.6,31.9,31.9,30.6,30.5,30.4,29.9,28.6,28.5
1909,29.3,29.6,31,32.7,33.3,32.3,29.9,31.7,29.9,30.3,29,27.8
1910,29,29.3,30.2,31.4,31.7,32,31.1,31.2,29.9,29.8,29.2,28.9
1911,29.7,28.6,30.6,31.6,32.6,31.9,29.9,30.3,30.8,30.7,29.6,29.6
1912,29.3,30.1,32.2,33.2,33.9,33.7,31.3,30.2,30.3,30.3,29.8,29.1
1913,29.5,29.7,31,31.9,32.3,32.8,30.4,30.4,30.2,29.8,29.7,28.8
1914,28.8,28.8,31.4,32.8,33.5,31.3,30.8,30.7,29.7,30.7,30.6,29.7
1915,29.6,30.6,31.7,33.8,33.6,33.5,31.8,30.9,30.9,30.3,29.8,28.6
1916,28.6,29.2,30.5,31.7,32.2,31.1,31.4,31.3,29.8,29.8,29.5,28.7
1917,28.9,29,30.6,32.3,32.6,32.3,29.8,30.9,30.4,29.7,28.9,28.3
1918,27,27.5,29.5,31,32.9,31.3,30.1,30.3,30.4,29.6,29.7,28.5
1919,29.7,30.1,31.8,33.6,33.9,31.6,30.5,29.2,30.3,30.1,29,28.7
1920,28.6,29.7,31.2,32.4,32.5,31.6,29.9,31.2,30.1,29.9,29.2,28.2
1921,29.1,28.9,30.8,31.7,33.2,31.5,30.9,30,30.3,30.6,28.5,28.4
1922,29.4,29.7,30.9,32.9,32.6,32.3,29.8,30.8,30,30.3,29.2,28.3
1923,28.5,29.1,30.1,32.3,31.6,29.9,30.4,29.7,30.2,30.2,28.9,29.2
1924,29.3,29.8,31,33.1,33.8,31.7,30.1,30.5,31,29.7,28.5,27.6
1925,29.7,28.3,30.6,31.9,32.5,30.4,30,30.6,30,29.4,29.2,27.9
1926,28.5,29.6,31.2,32.8,33.7,31,30.5,30.1,30.1,29.6,28.8,28.2
1927,28.4,29.8,31.1,32.6,32.4,31.3,30.3,29.9,31.1,29.9,29.6,29
1928,29.8,29.6,30.8,31.9,32.8,30.9,30.4,31.6,29.7,29.6,29.2,28.7
1929,28.1,29.4,30,31.9,32.8,32.2,29.5,29.7,30.2,29.4,28.7,28.7
1930,29,29.1,31.2,32.2,31.6,31.2,29.9,30.4,30.8,30.8,29.6,28.5
1931,29.6,30.6,31.8,33,33.7,32.1,31.1,30,30.4,29.7,29.7,28.4
1932,27.7,28.6,30.2,32.7,33,31.5,30.2,31.2,30.4,29.9,28.8,28.3
1933,28.6,29.1,30.7,32.3,33.1,31.6,30.2,30.7,29.9,29.2,28.9,27.9
1934,28.2,27.7,29.9,31,30.8,31.5,30.2,30.3,29.4,29.6,28.7,27.8
1935,28.5,29,30.6,31.9,32,32,30.1,30.9,29.7,30,28.9,28
1936,28.6,29.7,30.7,31.8,33.4,31.6,30.3,30.2,29.7,29.8,29.1,29.1
1937,29.5,29.7,31.3,32.5,32.6,32,30,30.4,30.2,29.6,29.5,29.1
1938,29,29.6,31.5,31.5,32.1,30.8,30.7,31.9,30.8,30,28.9,28.5
1939,28.6,28.7,30.8,32.4,31.9,32,30.7,30.6,30.5,30.2,29.1,26.8
1940,28.8,28.8,31.2,33,33.7,32.1,30.8,30.7,30.9,30.6,30.2,28.8
1941,29.3,29.6,30.7,31.9,32.8,31.8,30.9,31.3,30.6,30.2,29.8,29.1
1942,28.5,29.7,31.2,32.1,32.5,31.7,30.7,30.8,30.6,30.2,29.5,28.4
1943,28.1,28.8,30.6,31.2,32.2,31.2,30.6,30.6,30.7,30,29.6,28.5
1944,28.7,29,30,31.8,32.7,31.5,30.8,30.7,30.9,30.2,30,28.3
1945,28.5,29,30.5,31.5,31.8,31.2,30.5,30.6,30.5,29.7,30.1,28.6
1946,28.4,29.9,31,32.7,33.6,31.7,30.8,31,30.1,30.5,30.8,29.9
1947,30.5,29.8,31.6,32.9,33.3,32.2,30.9,31,31.1,30.8,29.7,29.4
1948,29.2,30.3,31.3,33.3,33.7,32.7,31.3,31.4,30.7,30.8,29.4,29.4
1949,27.8,29,28.9,30.8,32.5,32,30.6,30.9,30.5,29.5,28.9,28.2
1950,27.9,29,29.6,31.9,32.2,30.8,29.8,31.2,30,29.2,29.3,27.2
1951,29.2,29.6,31,32.6,32.2,31.6,31.6,31.3,31,31.2,29.8,28.7
1952,29.3,29.9,31,32.4,33.2,32.1,31.3,29.8,30.7,30.4,30,28.5
1953,28.8,29.7,31.5,32.7,32.9,31.3,31.2,31,31.6,30.7,29.9,28.5
1954,29.6,30.4,30.4,32.7,33.2,32.3,32.3,30.7,30.8,30.6,29.2,28
1955,28.4,29.2,30.7,32.1,33.2,31.6,31.4,32,31.5,30.5,29.1,27.8
1956,28.7,29.6,30.1,30.7,31.5,31.8,31.5,30.6,29.7,30.3,29.7,27.8
1957,28,28.6,30.6,31.7,33.7,32.2,31.2,31.3,30.7,30.1,29.4,29.7
1958,29.6,29.8,31.1,31.9,33.2,31.8,31.1,31.3,30.8,30,29.1,28.9
1959,28.8,29.9,30.6,32.3,33.1,33,31.9,31,31.1,30.2,29.1,28.7
1960,28.9,28.9,31.2,32.1,32.3,31.3,31.9,31.2,30.6,29.7,29.7,29
1961,28,29.4,31.4,32.5,32.4,31.2,30.6,30.6,30.9,30.3,29.8,29.4
1962,28.4,28.8,31.3,31.9,32.9,32.4,30.1,31.4,29.7,31.1,29.4,28.5
1963,27,28.2,29.6,31.4,33.4,31,30.9,31.3,30.3,30.6,30.1,29.2
1964,29.3,29,30.7,31.7,32.7,32.1,31.6,31.3,30.6,30.2,28.9,27.9
1965,27.8,29.2,29.6,31.9,32.5,31.4,30.4,31.7,30.9,30.6,30.1,29.3
1966,29.8,30.3,31.3,32.9,30.9,32.5,31.6,32.5,30.5,30.8,30.4,29.2
1967,28.1,28.9,30,31.8,33.7,31.6,31.3,30.2,31,30.2,29.3,28.2
1968,28.5,28.9,31,32.2,34.5,34.1,32.1,31,31.2,30.1,29,29.3
1969,30,30.1,31.5,33,34.8,33.4,31.4,31.7,30.7,30.8,30.2,28.8
1970,29,29.2,31.4,32.2,34.6,32.1,31.3,30.8,30.6,30.4,30.1,29.6
1971,28.6,29.7,29.3,31.1,31.4,30.2,30.2,31.6,31.3,29.7,29.5,28.4
1972,27.7,29.4,29.6,31.6,32.3,31.8,30,30.5,31.2,31.6,30.7,29.6
1973,29.4,29.9,30.9,32.5,34.2,32.8,32,31.6,31.6,29.5,28.5,27.9
1974,28,29.1,30.4,31.9,32.3,30.4,30.6,30.3,31.4,29.3,28.6,28.5
1975,28,28.6,30.4,30.3,31.9,31.6,30.9,30.2,30.7,30.2,29.5,27.6
1976,27.1,28.2,29.6,31.4,29.8,30.2,30.5,29.5,31,30.9,29.3,27.3
1977,28.5,28,29.9,31.7,32,32.1,31.1,30.7,29.8,30.9,28.8,28
1978,28.6,28.8,31.3,32.5,32.8,31.4,30.8,29.8,29.4,29,28.6,28.9
1979,29.2,31,31.4,32.5,31.7,31.5,30.7,30.6,31.2,30.1,30.6,29.4
1980,29.7,30,31.5,32.4,33,32.1,31,30.6,30.5,30,30.2,29.7
1981,28.1,29.3,30.5,31.8,31.8,30.9,30.5,30.2,30.8,30.1,29.6,28.1
1982,27.3,28.7,30.8,31.4,33,32.7,30.5,31,30.5,30.5,29.7,29
1983,29,30,31,32.6,33.3,33,31.9,31.7,31.1,29.7,28.8,27.7
1984,28.3,29.1,30.6,32.1,32.1,30.4,31.3,29.9,30.8,29.5,29.9,28.5
1985,28,30,31,31.1,32.1,31.1,30.7,30.7,30.3,30,30.2,28.6
1986,27.9,28.4,30.1,31.7,32,31.9,31.1,30.9,30.5,29.9,30.2,29.2
1987,29,29.2,31,33,34.3,32.8,31.6,32.3,31.4,31.6,30.8,29.6
1988,30.1,30.3,31.7,32.4,33.1,31.6,31.4,32.4,31.8,29.5,29.6,28.2
1989,29.7,28.1,29.9,32.2,32.3,31.6,31.5,30.8,31,31,30,29.1
1990,28.9,29.8,29.8,32.5,32,30.8,31,31.1,31.3,30.6,30.2,29.3
1991,29.6,29.4,30.4,31.5,33.3,32.3,31.3,30.7,30.6,30.6,29.4,29.1
1992,29,29.3,31.4,32.3,32.8,32.3,30.9,30.7,30.6,30.2,29.5,29.1
1993,28.2,29,29.7,32.3,33.6,33.1,31,30.6,30.2,29.6,30.1,28.2
1994,29.3,29.2,30.8,32.2,32.6,31.6,29.8,30.8,30.5,30.3,29.9,29
1995,28.6,28.9,30.4,31.3,32.3,31.9,30.7,30.4,29.4,29.6,29.3,27.6
1996,28.2,28.2,30.1,30.6,31.7,31.9,30.9,31.3,30.4,31,28.6,28
1997,28.1,28.5,29.8,31.5,31.9,31.4,30.3,30.8,30.6,31.1,31,29.7
1998,29.8,29.7,31.1,32.5,32.6,32.1,32.4,32.2,30.4,29.7,30.3,28.7
1999,28.8,28.9,30.5,31,32.1,30.5,30.1,30.4,29.8,30,28.9,28
2000,28.8,28.5,29.9,32.1,31.5,31.4,29.4,31.1,30.6,29.9,29.7,28.8
2001,29.5,28.5,30.8,32.5,31.9,31.3,30.5,30.4,30.7,30.2,29.5,28.5
2002,28.7,28.2,30.7,32.2,32.5,32.6,30,30.6,30.3,30.7,29.6,29.6
2003,28.9,28.8,30.8,32.8,31.8,31.2,31.4,30.1,30.1,30.7,30.1,28.4
2004,29,29.7,31.5,33,32.7,30.4,31.5,31,31.5,30.2,29.1,28.4
2005,30.4,29.9,30.5,31.8,32.9,31.4,31.3,30.6,30,30.4,30.1,28.4
2006,28.7,29.1,31.1,31.9,33.7,31.8,31.6,30,30.5,29.6,30.4,28.7
2007,28.8,29.5,30.9,32,32.9,32.6,31.3,30.8,30.2,29.9,28.6,28.9
2008,28.7,28,29.6,31.5,30.2,31.3,31.2,30.8,30.2,30.2,30.9,28.4
2009,27.4,29.6,30.6,30.5,30.7,29.8,29.9,30.9,29.7,29.1,29.7,28.8
