1901,23.6,23.5,23.4,23.4,23.2,22.6,22.1,22.2,22.4,22.9,23.3,23.5
1902,23.5,23.5,23.4,23.4,23.2,22.6,22.1,22.2,22.4,22.9,23.3,23.5
1903,24,23.7,23.8,23.6,23.2,22.7,22.3,22.1,22.3,22.5,23.2,23.5
1904,23.5,23.4,23.4,23.2,23.1,22.2,21.8,21.6,21.9,22.5,22.8,23.5
1905,23.7,23.1,23.6,23.6,23.3,22.9,21.9,21.6,22.2,22.8,23,23.9
1906,24,24.2,23.7,24,23.4,22.9,22.2,21.9,22.3,22.5,23.1,23.7
1907,23.3,23.4,23.2,23.4,23,22.7,21.9,21.8,21.9,22.7,23,23.3
1908,23.3,23.6,23.4,23.5,23.2,22.3,21.9,22.1,22.4,22.4,23.1,23.2
1909,23.6,23.8,23.4,23.6,23.4,22.8,22.7,22.6,22.5,23,23.2,23.2
1910,23.5,23.5,23.4,23.4,23.1,22.7,22.3,22.2,22.6,23,23.3,23.6
1911,23.6,23.4,23.4,23.3,22.9,22.3,21.7,22.1,21.9,22.8,23.1,23.9
1912,23.6,23.7,23.5,23.6,22.9,23.1,22.1,21.6,22.5,22.6,23.3,23.5
1913,23.6,23.3,23.3,23.3,22.8,22.3,21.8,21.4,21.9,22.3,23.4,23.7
1914,23.6,23.4,23.5,23.6,23.2,22.3,21.7,21.4,21.8,22.3,22.9,23.6
1915,23.8,23.8,23.4,23.4,23.3,22.6,22.5,22.3,23.1,23,23.6,23.6
1916,23.5,23.6,23.6,23.6,23,22.9,22.6,22.5,22.5,23,23.2,23.5
1917,23.6,23.6,23.4,23.4,23.1,22.5,22.3,22.4,22.6,22.9,23.5,23.1
1918,23.4,23.2,23.2,23.2,22.7,22.3,21.4,21.8,21.9,22.6,23.4,23.4
1919,23.5,23.6,23.4,23.4,23.2,22.3,21.5,21.6,21.9,22.5,23.2,23.5
1920,23.5,23.3,23.5,23.5,23.2,22.9,22.2,22.3,22.5,22.8,23.1,23.4
1921,23.3,23.6,23.6,23.1,23.1,22.9,22,21.6,22.3,22.8,23,23.5
1922,23.9,23.8,23.4,23.2,22.6,22.5,22.1,21.4,22.2,22.8,22.9,23.7
1923,23.8,23.3,23,23.2,22.9,22.1,21.1,21.9,21.4,22.5,23.2,23.8
1924,23.7,23.9,24.1,23.2,23.3,22.8,21.7,21.9,22.1,23,23.8,23.4
1925,23.9,23.7,23.4,22.7,22.4,22.1,21.4,21.4,21.6,21.8,22.9,23.8
1926,23.6,24.1,24.3,23.7,23.5,22.6,22,22.1,22.4,23.1,23.2,23.7
1927,23.5,24.3,24.4,23.6,23.3,23.2,22,21.3,21.4,22.2,22.8,23.7
1928,23.6,24.2,23.8,24,23,21.9,21.4,21.7,22.2,22.9,23.4,24.2
1929,23.3,22.9,23.5,23.5,22.3,22.2,21.7,21.3,21.3,22.4,23.3,22.9
1930,23.8,23.3,23.2,23.5,23.6,22.6,21.6,21.7,21.1,22.4,22.7,23.3
1931,24,23.5,23.2,22.5,22.9,22,21.2,22.3,21.2,22.8,22.5,23.7
1932,24.2,24.1,24,24.2,23.4,22.6,21.2,21.4,21.8,22.6,23,23.6
1933,24.3,23.9,23.9,23.7,23.1,22.6,22,22.2,22.1,22.7,23.1,23.3
1934,23.8,24,23.5,23.8,23.3,23.1,22.4,22,21.4,22.4,23.8,23.7
1935,24.1,24.2,23.5,23.4,22.8,22.5,22.2,21.6,22,22.6,22.9,23.7
1936,24.1,23.8,24,23.6,22.9,22.8,22.3,21.5,22.2,22.4,23.3,24
1937,23.8,24.1,23.9,23.7,23.5,23,22.2,21.7,22.1,22.7,23.5,23.9
1938,23.7,23.5,23.7,23.8,22.9,22.8,22.1,22.3,21.7,22.2,22.8,23.3
1939,23.6,23.4,23.2,23.3,22.6,22.4,22.3,21.9,21.8,22.3,23.2,24
1940,23.4,23.3,23.3,23.3,23.1,22.7,22,21.7,21.7,21.7,23.2,23.9
1941,23.4,23.2,23.3,23,22.9,22,20.8,20.8,21,22.7,22.2,22.9
1942,23.4,23.8,23.7,24,23.7,23.1,22.8,21.8,22.3,22.7,22.9,23.5
1943,23.3,23.4,23,22.8,22.3,21.9,22,21.8,21.9,22.4,22.6,23.2
1944,23.6,23.3,23,23.3,22.8,22.4,21.7,21.6,22,22.5,23,23.5
1945,23.6,23.5,23.2,23.2,22.7,22.7,21.9,22.3,22.4,22.6,22.9,23.2
1946,23.5,23.5,23.4,23,22.9,21.9,21.5,21.5,22,22.3,22.9,23.5
1947,23.3,23.4,23.5,23.4,23.1,22.9,22.1,22.2,22.6,22.7,23.4,23.4
1948,23.8,23.6,23.4,22.9,23.1,22.4,22.4,22,21.7,22.7,22.8,23
1949,24,23.6,23.4,23.2,22.6,21.7,22,21.7,22.1,22.8,23,23.1
1950,23,23.3,23.4,23.3,22.9,22.9,22.2,22.4,22.8,22.7,24.2,23.1
1951,23.1,24.7,23.6,23.6,23.2,22.5,22.3,22.6,22.4,23.2,23.3,24.4
1952,23.7,24.2,24.3,24.1,23.8,23.2,22.4,22.8,22.6,23.4,23.5,23.5
1953,23.5,23.5,23.6,23.6,23.4,22.8,22.1,22.1,22.4,23.1,23.8,23.7
1954,23.8,24,23.5,23.8,22.9,22.9,22.3,22.3,22.5,22.7,23,23.4
1955,23.3,23.5,23.4,23.6,24.1,22.9,22.8,22.8,22.6,23.2,23.3,24
1956,23.8,23.4,23.8,23.7,24.4,23.7,23.2,23,22.9,23.7,23.6,23.4
1957,23.8,23.3,23.7,23.5,23.4,22.8,22.7,22.5,22.2,22.9,23.6,23.9
1958,24.5,24.2,24.3,24.1,24.4,23.9,22.4,22.8,22.7,23.1,22.7,24
1959,23.1,23.7,23.2,23,22.8,22.2,21.8,21.6,21.9,22.6,23.4,24
1960,23.2,23.4,22.8,22.8,23.1,22.2,21.9,22.1,22.1,22.7,23.2,23.3
1961,23.1,23.8,23.6,23.1,22.6,21.9,21.9,22,21.9,22.1,23.1,23.6
1962,24,23.2,23.1,22.8,22.8,22.6,21.9,21.8,22.5,23.2,23.5,23.3
1963,23.4,23.3,23,22.8,23.1,22.3,21.4,21.9,21.8,22.1,22.6,23.7
1964,23.4,23.9,23.1,23.6,23.2,22.7,22.7,22.1,22.7,23.1,22.7,23.1
1965,22.7,23.3,22.9,23.2,22.9,21.7,20.4,21.3,21.7,22.3,22.7,23
1966,22.6,23.4,23.2,23.2,22.9,22.3,21.6,22.2,22.5,22.8,22.7,22.8
1967,23,22.8,22.9,22.8,22.6,21.8,21.3,22.1,22.1,22.4,22.9,23.5
1968,22.9,22.6,23.4,23.1,22.8,22.6,22.2,22.3,22,22.4,22.7,23.1
1969,22.8,23.3,23.4,23.6,23.2,22.4,22,21.9,22.2,22.5,23,23.7
1970,23.6,23.8,23.5,23.5,23.2,23,21.9,22.3,22.8,23.3,22.8,23.3
1971,23.6,23.2,23.1,23,23,22.5,22,22.5,22.7,23.6,23.4,23.6
1972,23.4,22.9,23,23.1,22.8,22.7,21.9,21.6,21.2,22.3,23.2,23.6
1973,23.7,24,23.5,23.6,23.5,23.4,22.3,22.8,22.9,23.1,22.6,23.3
1974,22.9,23.4,22.7,23.3,23,22,21.9,22.6,23,23,23.2,23.3
1975,23.6,23.3,23.2,23.5,23.6,22.7,22.8,22.7,22.9,23.3,23.7,22.2
1976,22.6,23.5,22.9,23.5,23.3,22.5,22.3,21.6,21.8,23.2,23.8,24
1977,23.5,23.8,23.5,23.2,22.7,22,21.7,21.8,22.2,22.4,23.1,23.6
1978,23.8,23.8,23.8,23.6,23.8,22.9,22.4,22.4,22.4,22.5,23.3,23.6
1979,23.6,23.8,23.8,23.5,23.4,23.1,22.1,21.8,22.4,22.5,23.5,23.5
1980,23.8,23.6,23.6,23.9,23.6,23.3,22.1,22.1,21.9,22.8,23.2,23.4
1981,23.4,23.6,23.5,23.4,23.7,22.9,22.7,22.5,23.2,22.6,23.4,23.9
1982,23.6,23.6,23.6,23.6,23.3,22.6,21.6,21.4,21.8,22,22.7,23.8
1983,24,24.1,23.8,23.7,23,23,22.2,22.3,22.6,23.3,23.6,23.8
1984,23.5,23.4,23.3,23.8,23.5,22.4,22,22.3,22.9,22.8,23.5,23.6
1985,23.7,23.8,23.8,23,23.6,22.2,21.2,22.1,22,23,23.6,23.8
1986,23.7,23.7,23.7,23.3,23.5,23,22.6,22.5,22.7,23.4,23.5,23.9
1987,24.1,23.2,23.8,23.7,23.6,23.6,22.2,22.2,22.7,23.1,24.7,24.3
1988,24.2,24,23.9,24.1,23.6,22.9,22.6,23.1,23.4,23.9,24,23.6
1989,23.7,23.7,23.3,23.4,23.5,23,22.7,22.5,22.9,23.1,23.8,23.6
1990,24,24.7,24.6,24,23.7,22.7,22.9,22.1,22.2,22.8,23.6,24.3
1991,24,23.3,23.7,23.9,23,22.5,22.3,22.2,21.9,22.4,23.4,23.9
1992,23.9,23.8,23.9,23.4,23.5,22.6,22,22.4,23,22.8,23.3,22.9
1993,23.1,23.1,23.8,23.4,23.3,23.1,22.8,22.2,23,23.8,23.5,23.4
1994,24,23.6,23.9,23.3,23.1,22.6,21.9,21.7,22.4,23.1,23.2,23.4
1995,23.7,23.8,23.5,23.6,23.1,22.9,22.3,22.2,22.2,22.3,23.5,23.3
1996,23.7,23.7,23.5,23.3,22.7,23,21.7,22.2,22.6,22.8,23.3,23.5
1997,23.3,23.6,23.3,23.2,22.9,22.7,22.1,22.1,22.3,22.8,23.1,23.7
1998,23.6,23.9,23.8,23.7,23.5,22.9,22.5,22.2,22.5,23,23.7,23.3
1999,23.7,23.7,23.4,23.3,23.2,23,22.1,22,22.3,22.8,23.4,23.3
2000,23.7,23.4,23.4,23.4,23.2,22.3,22,22.1,22.4,22.6,23.6,23.1
2001,23.4,23.4,23.5,23.5,23.1,23,22.2,22,22.5,23,23.6,23.6
2002,23.9,23.2,23.8,23.6,23.5,22.9,22.3,21.9,22.5,23.1,23.5,24
2003,23.3,23.6,23.4,23.8,23.5,23.4,22.6,22.3,22.6,23.5,23.4,24.1
2004,24.3,23.5,23.6,23.7,23.6,22.6,22.2,22,22.2,23,23.5,23.5
2005,23.7,24.1,23.6,23.5,23.1,22.8,22.5,22.2,22.6,23.2,23.3,23.5
2006,23.4,23.7,23.4,23.3,23,22.3,21.9,21.9,22.1,22.7,23.3,23.4
2007,23.6,23.5,23.2,23.3,23.3,22.4,21.8,22,22.3,22.9,23.2,23.5
2008,23.5,23.5,23.3,23.2,23,22.6,22,22,22.4,22.9,23.4,23.4
2009,23.5,23.4,23.5,23.4,23.1,22.6,22,22.1,22.5,22.9,23.2,23.4
