1901,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1902,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1903,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1904,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1905,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1906,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1907,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1908,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1909,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1910,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1911,23.1,23.2,23.4,23.6,23.7,23.2,22.7,22.3,22.5,23,23.3,23.2
1912,23.5,23.3,23.7,23.7,23.7,23,22.5,22.4,22.5,23,23.2,23.2
1913,23.3,23.2,23.6,23.4,23.7,22.9,22.5,22.4,22.5,23.1,23.2,23.3
1914,23.3,23.3,23.5,23.6,24,22.9,22.6,22.6,22.7,23.1,23.4,23.4
1915,23.3,23.2,23.4,23.7,23.9,23.2,22.4,22.6,22.5,23.1,23.3,23.2
1916,23.2,23.2,23.4,23.6,23.7,23,22.2,22.3,22.6,23.1,23.2,23.2
1917,23,22.8,23.2,23.5,23.3,22.9,22.4,22.2,22.4,23,23.2,23.1
1918,22.6,22.4,23.3,23.3,23.5,22.7,22.5,22.4,22.5,22.9,23.2,22.9
1919,23.4,23.3,23.6,23.7,23.9,23.2,22.4,22.5,22.6,23,23.2,23.1
1920,23.2,23.2,23.5,23.6,23.8,23.2,22.6,22.3,22.6,23,23.4,22.9
1921,23.2,23,23.4,23.6,23.5,22.9,22.4,22.4,22.6,22.9,23.1,23.2
1922,23.4,23.1,23.2,23.3,23.5,22.9,22.4,22.2,22.6,22.9,23.4,23.4
1923,23.2,23.2,23.3,23.7,23.7,23.1,22.3,22.2,22.2,22.9,23.2,23.2
1924,23.4,23.2,23.2,23.6,23.6,22.9,22.5,22.5,22.3,22.8,22.9,23
1925,23.1,22.7,23.1,23.5,23.7,23.1,22.5,22.4,22.5,22.9,23.1,23
1926,23.1,23.2,23.5,23.8,23.8,23.1,22.5,22.4,22.4,22.9,23.1,23.2
1927,23.2,23,23.5,23.5,23.6,23,22.5,22.4,22.5,22.8,23.1,23.2
1928,23.2,23,23.3,23.5,23.7,23,22.5,22.3,22.5,22.9,23,23.2
1929,23.1,22.8,23,23.6,23.7,22.8,22.6,22.4,22.4,22.8,22.9,23.1
1930,23.2,23.1,23.2,23.6,23.6,22.9,22.7,22.8,22.5,22.9,23.1,23.2
1931,23.3,23.4,23.5,23.7,23.8,23.1,22.5,22.8,22.5,22.9,23.1,23
1932,23,23.1,23.2,23.4,23.5,22.7,22.4,22.3,22.4,23,22.9,23.2
1933,23.1,23,23.2,23.5,23.7,23.1,22.4,22.4,22.3,22.8,22.8,22.9
1934,22.7,22.6,22.9,23.3,23.7,22.8,22.4,22.4,22.5,22.8,23,23.2
1935,23.3,23.1,23.5,23.5,23.5,22.8,22.6,22.3,22.6,23,23.1,23.2
1936,23.3,23.3,23.3,23.6,23.7,22.9,22.5,22.3,22.4,22.7,23,23.2
1937,23.3,23.1,23.5,23.6,23.5,23.1,22.5,22.5,22.4,22.8,23.1,23.2
1938,23.2,23.3,23.2,23.5,23.5,23.1,22.4,22.2,22.4,22.9,23.2,23.2
1939,23.2,23,23.3,23.5,23.7,22.9,22.5,22.3,22.3,22.8,23.1,23.2
1940,23,22.4,23,23.5,23.5,22.8,22.3,22.2,22.4,22.8,22.9,22.8
1941,23.3,23,23.5,23.8,24.1,23.1,22.3,22.5,22.3,23,23.2,23.3
1942,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1943,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1944,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1945,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1946,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1947,23,22.9,23.2,23.4,23.6,22.9,22.3,22.2,22.3,22.8,22.9,22.9
1948,23.1,23,23.4,23.7,23.8,23.2,22.5,22.5,22.6,23.1,23.1,23.3
1949,23.4,23.2,23.6,23.6,23.6,23,22.5,22.5,22.5,22.9,23,23
1950,23,22.4,23.2,23.4,23.4,22.9,22.2,22.3,22.4,22.8,23.1,23
1951,23.3,23,23.3,23.6,23.6,23,22.2,22.4,22.5,23,23.4,23.4
1952,23.7,23.5,23.2,23.6,23.6,23.2,22.4,22.4,22.4,23,23.2,23.2
1953,23.5,23.1,23.8,23.8,24,23.5,22.6,22.3,22.8,23.1,23.3,23.4
1954,23.5,23.1,23.4,23.7,24,23.1,22.5,22.5,22.8,22.7,23.3,23.3
1955,23.4,22.9,23,23.4,24.2,23,22.7,22.8,22.9,23.3,23,23.4
1956,23.1,22.8,23.2,23.5,23.8,22.9,22.3,22.5,22.7,22.7,23.2,23.1
1957,23.2,22.5,23.6,23.6,23.7,23.3,22.7,22.6,22.5,23.1,23.1,23.4
1958,23.6,23.1,23.6,23.6,23.9,23.2,22.7,22.5,22.6,23,22.8,23.4
1959,23.6,23.2,23,23.4,23.7,22.9,22.3,22.3,22.3,23,23.2,23.1
1960,23.2,22.9,23,23.7,23.6,22.9,22.5,22.8,22.5,22.9,23.6,22.9
1961,22.6,22.5,22.8,23,23.3,21.9,21.3,21.2,21.3,22.5,22.6,22.5
1962,22.9,22.2,22.8,22.7,23.1,22.5,21.8,21.1,21.7,22.5,22.8,23.1
1963,22.6,22.3,22.9,22.9,22.9,22.3,21.3,21.6,21.7,22.5,22.5,22.6
1964,22.8,23.2,23.5,23.4,23.5,22.4,21.5,21.7,22.2,22.3,22.8,22
1965,22.3,22.4,22.8,22.3,23.6,22.3,21.5,21.5,21.3,22.7,22.7,22.8
1966,22.9,22.9,23.2,23.4,23.3,22.8,22.1,21.8,21.8,22.8,22.7,22.8
1967,22.9,22.4,22.8,23.1,23.2,22.1,21.6,21.7,21.4,22.6,22.4,23.1
1968,22.7,21.8,22.7,22.9,23.1,23.1,22.2,21.9,22.1,22.9,23,22.9
1969,22.6,22.7,23,23.4,23.4,22.7,22.3,21.5,21.8,22.6,22.7,22.8
1970,23,23,23.4,23.8,23.7,23.1,22.3,21.7,22.1,23,22.9,22.9
1971,22.8,22.9,23,23.7,23.4,22.4,22.1,22.5,23,23,22.9,22.9
1972,22.2,22.7,22.6,23,23.2,22.8,22.8,22.4,22.5,22.8,23.3,23.4
1973,23.3,23.3,24,23.9,23.8,23.4,23.4,22.8,22.9,23.4,23.2,22.5
1974,22.1,22.4,22.5,22.6,22.9,21.9,22,22.5,22.5,22.7,22.8,22.5
1975,22.9,22.5,22.9,23.7,23.2,22.5,21.6,22.5,22.6,22.8,22.9,22.6
1976,21.8,21.9,22.4,22.1,22.7,21.6,21.3,21.4,21.7,22.6,22.5,22.4
1977,22.6,22.3,22.9,23.6,22.7,22.1,21.8,21.8,22.3,22.6,22.7,23
1978,22.8,22.7,23.2,23.1,23.7,22.9,22.2,22.4,22.1,22.8,22.6,23.1
1979,23.1,22.9,23.3,23.3,23.4,22.8,22.2,22.5,22.1,22.9,23.2,22.9
1980,23.3,22.5,22.7,23.2,23.8,22.8,22.4,22,22,23,22.9,22.9
1981,23.3,23,23.8,24.2,24.5,23.5,23.2,23.2,22.8,23.1,23.4,23.2
1982,23.7,23.4,23.3,23.8,23.7,22.8,23.1,22.3,22.3,22.7,23.4,23.4
1983,24,24.1,24.1,24.2,24.6,23.8,23.1,23.2,22.5,23.4,23.4,22.8
1984,22.7,22.9,23.2,23.3,23.9,22.8,22.2,22.5,22.4,22.6,23,22.9
1985,22.7,23.4,23.5,23.6,24.1,23.2,22,22.4,22.1,22.4,23,23.1
1986,23.6,23.1,23.7,24.1,23.9,23.8,22.6,23,22.6,22.6,23.1,23.3
1987,23.6,22.9,23.6,24.1,24,24.1,22.8,22.9,22.7,23.1,23.5,23.5
1988,24,24.2,24.4,23.9,24.7,23.5,23,22.9,23.2,23,23.4,22.6
1989,23.4,23.1,22.9,23.4,24,23.1,22.6,23.1,22.7,22.8,23.3,23
1990,23.3,23.6,23.9,24.1,24.1,23.8,22.5,22.6,22.9,23.2,23.2,23.5
1991,23.5,23.4,23.8,23.8,23.9,24.3,23.3,22.8,22.9,22.8,22.8,22.9
1992,23.3,23.5,24.1,24.1,24.3,24.1,22.8,22.9,22.2,22.9,22.7,23
1993,23.5,23.2,23.7,23.9,24.4,23.7,22.7,22.9,22.3,22.7,23.2,23.1
1994,23.5,23.2,23.4,23.4,23.7,23,22.7,22.3,23.2,22.8,23.3,23.3
1995,23.7,23.1,24,24.2,24.1,23.7,23.2,22.8,23,22.8,23.4,22.8
1996,23.2,23.1,23.7,23.8,24,24,23.1,22.8,22.9,23.3,23.2,22.9
1997,23,22.9,23.9,23.6,24,23.5,23.4,23.3,23.1,23.3,23.4,23.7
1998,24.5,24.5,24.8,24.5,25.1,24.2,23.4,23,23.3,23.5,23.3,22.8
1999,23.5,23.3,23.7,23.9,23.5,23.4,22.5,22.9,22.6,22.9,23.1,23.1
2000,23.4,23.4,23.5,23.3,23.8,23.3,23.2,22.7,22.8,23.1,23.3,23.3
2001,23.3,23.2,23.3,23.6,24.3,23.6,23,23.2,23.1,23.1,23.1,23.3
2002,23.7,23.2,24,24.3,24.8,23.4,23,22.7,22.7,23.2,23.5,23.7
2003,23.7,23.7,23.8,23.8,24.8,23.6,22.9,23.1,22.8,22.8,23.3,23.2
2004,23.4,23.3,23.7,24,24,23.9,22.6,23.3,22.5,23.2,23.4,23.4
2005,23.9,23.9,24.3,23.8,24.3,23.6,23.1,23.1,23,23.2,23,23
2006,23.6,23.6,24,23.8,23.9,23.4,23.3,23,22.7,23.6,23.4,23.5
2007,23.7,23.4,23.7,24.1,24.3,23.5,23.1,22.9,22.8,23.3,23.3,23.5
2008,23.3,23.3,23.3,23.7,24.1,23.3,23,22.8,22.7,23.3,23.6,23.3
2009,23.6,23.4,23.3,23.9,24.1,23.7,23.1,23.1,22.9,23.4,23.5,23.6
