1901,23.5,23.6,23.9,23.9,24.2,24.1,23.8,23.7,23.4,23.5,23.3,23.2
1902,22.7,23.5,23.4,23.9,24.1,24.2,23.7,23.6,23.3,23.4,23.2,23.5
1903,23.3,22.9,23.9,24.3,24.3,23.6,23.5,23.4,23.2,23.2,22.6,21.9
1904,22.1,22.5,23.3,23.6,24,23.9,23.6,23.7,23.6,23.5,22.8,22.6
1905,23.5,23.7,23.7,24.3,24,23.9,23.7,23.9,23.6,23.6,23.3,24.2
1906,23.9,23.8,23.7,24.6,24.6,24.1,23.8,23.8,23.7,23.3,22.8,23.1
1907,23,23.2,23.1,23.9,23.8,23.8,23.6,23.5,23.5,23.3,23.2,22.3
1908,23,23,23.3,23.9,24,23.8,23.6,23.5,23.5,23.4,22.6,22.9
1909,23,23.2,23.4,23.9,23.9,23.9,23.5,23.6,23.5,23.5,22.7,22.6
1910,23.3,22.8,23.1,23.8,24,23.7,23.6,23.6,23.2,23.3,23,22.4
1911,23.3,24,24,24.4,24.5,24.5,24.6,24.1,24.1,23.8,24.6,24.3
1912,24.4,24.3,24.8,24.9,24.8,24.2,24.1,24,24,23.9,23.7,23.9
1913,23.9,24.2,24.7,24.4,24.6,23.9,24,24.3,24,24.1,23.9,24.1
1914,23.8,24.3,24.2,24.6,25.4,24.1,24.2,24.4,24.5,24.4,24.6,24.6
1915,24.2,24.4,24.4,24.8,24.9,24.4,24.1,24.4,24.2,24,24.1,23.5
1916,23.3,24,24.2,24.8,24.3,24.2,23.5,23.9,24.1,24.1,23.9,23.5
1917,23.1,23.2,23.5,24.5,23.7,24,23.9,23.6,23.7,23.7,23.9,23.3
1918,22.3,21.9,23.7,23.9,23.8,23.6,24.2,24.2,24.1,23.7,24.2,23.4
1919,24.4,24.4,24.6,24.9,25,24.6,24,24.5,24.3,24.2,23.9,23.7
1920,23.6,23.7,24.4,24.6,24.7,24.7,24.3,23.9,24.1,23.9,24.4,23
1921,23.8,23.4,24.1,24.5,24,23.7,23.9,24.2,24,23.6,23.5,23.9
1922,24.2,23.7,23.4,23.7,24,24,23.8,23.6,24.1,23.7,24.1,23.9
1923,23.5,23.5,23.8,24.5,24.2,24.3,23.5,23.6,23.3,23.7,23.9,24
1924,24.2,23.8,23.8,24.4,24.2,24,23.9,24.4,23.2,22.9,23.4,23
1925,23.4,22.7,23.4,24.1,24.5,24.4,24.2,24.1,24,23.5,23.7,23.2
1926,23.5,23.9,24.2,25.2,25.1,24.5,24.1,24.2,23.8,23.6,23.8,23.8
1927,23.6,23.6,24.2,24,24,24.1,24,24.1,24,23.4,23.6,23.9
1928,24,23.6,23.7,24,24.4,24.2,24.1,23.9,24,23.6,23.6,24.2
1929,23.6,23,23.1,24.3,24.4,23.6,24.3,24.1,24,23.4,23.3,23.7
1930,23.7,23.6,23.4,24.3,24.4,24,24.6,25,24.1,23.9,23.8,23.9
1931,24.1,24.3,24.6,24.9,24.8,24.6,24.1,25,24,23.7,23.7,23.2
1932,23.2,23.6,23.6,24.1,24.2,23.7,24,24,23.7,23.9,23.3,23.5
1933,23.7,23.5,23.7,24.3,24.7,24.4,24,24.4,23.7,23.5,23.1,23.1
1934,22.7,22.6,23,23.8,24.5,23.9,24.2,24.1,24.2,23.6,23.6,23.4
1935,23.8,23.7,24.4,24.3,23.9,23.8,24.4,24,24.2,24,23.8,23.7
1936,23.7,24,23.7,24.4,24.6,24,24.1,23.8,24,23.3,23.6,24.1
1937,24,23.9,24.4,24.5,23.9,24.2,24.1,24.5,23.9,23.5,23.8,23.6
1938,23.8,24.2,23.6,24.2,24,24.2,23.9,23.7,23.9,23.8,23.4,23.8
1939,24.4,23.2,23.6,24.2,24.4,23.5,23.8,23.9,23.4,23.2,23.6,22.7
1940,22.8,23.4,23.8,24.5,24.3,24.5,24.1,23.5,23.8,24.1,24,23.9
1941,24.3,24.3,24.2,25.1,24.7,24.7,24.3,24.2,24.3,24.4,24,24.3
1942,22.8,23.3,23.5,23.8,23.9,23.8,23.5,23.5,23.4,23.3,23.1,23
1943,22.6,22.9,23.4,23.4,23.9,23.7,23.4,23.5,23.3,23.3,22.9,22.7
1944,23.3,23.4,23.4,24.1,24,23.8,23.4,23.5,23.5,23.4,23.1,22.6
1945,23.2,23.4,23.2,23.8,23.9,23.7,23.6,23.6,23.4,23.1,23.4,23.3
1946,23.1,23.3,23.8,23.8,23.9,23.8,23.6,23.4,23.4,23.4,23.2,23.7
1947,23.8,23.6,23.7,24.1,24.3,23.9,23.4,23.5,23.5,23.4,23.1,23.1
1948,23.8,23.8,24.3,24.9,24.7,24.8,24.2,24.6,24.3,24.2,23.7,23.8
1949,23.5,24.1,24.8,24.6,24.5,24.3,24.1,24.4,24.2,23.8,23.8,24.1
1950,24.3,24.2,24.3,24.2,24.5,24.2,23.9,24,23.4,23.6,23.9,23.4
1951,22.3,22.1,23.1,23.5,23.3,23.9,22.9,23.5,23.3,23.2,23.3,23.2
1952,23.3,23.2,23.2,23.7,23.6,23.6,23.2,23.2,23.2,23.1,22.6,22.6
1953,23.1,22.5,22.9,23.5,23.5,23.8,23.2,23.8,23.1,23.4,23.3,23
1954,22.8,23.2,23,23.4,23.5,23.5,22.9,23.4,23.2,22.9,22.5,22.7
1955,22.9,22.9,23.2,23.2,23.8,23.4,23,22.9,23.4,23.1,22.6,22.4
1956,22.4,22.7,23,23.5,23.5,23.2,23,23,23.1,23,23.1,22.4
1957,22.8,23,23.1,23.8,23.8,24.2,23.6,23.5,23.5,23.2,23.4,23.1
1958,23.5,23.5,23.6,24.4,25,24.2,24,23.6,23.8,23.4,22.7,23.2
1959,23.6,23.7,23.4,23.7,24,24.1,23.5,23.3,23.4,23.2,23,23.3
1960,23.3,23.2,23.4,23.6,24,23.8,23.6,23.7,23.7,23.6,22.7,23.1
1961,23.1,23.3,23.3,23.8,24.1,23.4,23.2,23.5,23.1,22.9,22.9,22.9
1962,23,22.9,23.1,23.7,24.3,23.5,23.4,23.1,23.5,23.1,23.2,23
1963,22.5,22.7,23.4,24.4,24.3,23.9,23.8,23.4,23.7,23.3,23.2,23.2
1964,23.8,23.4,23.4,24.1,24.2,23.6,23.2,23.3,23.3,23,22.9,22.7
1965,22.7,23.1,23,23.4,23.7,23.7,23.3,23.3,23,23.2,23,22.8
1966,23.1,23.3,23.3,24,23.8,23.4,23.3,23.3,23.4,23.2,23.1,22.8
1967,22.5,22.6,23.2,23.5,23.8,23.4,23.4,23.3,23.3,23.1,22.8,23
1968,22.9,22.9,23.3,23.6,23.6,23.8,23.3,23.4,23.2,23.1,23.5,22.9
1969,23.4,23.4,23.9,24.4,24.3,23.7,23.7,23.3,23.6,23.3,22.9,23
1970,23.3,23.5,23.6,24,24.2,24.1,23.3,23.7,23.2,23,22.9,22.8
1971,22.6,22.4,22.7,23.8,23.6,23.3,23.3,22.8,23.4,23.2,22.7,22.4
1972,22.6,23,23.2,23.3,23.9,23.8,24,23.9,23.5,23.5,23.3,23.3
1973,23.6,23.9,23.6,24.1,23.9,24.1,23.6,23.6,23.4,23.3,23.1,22.2
1974,22.3,22.6,23,23.5,23.5,23.5,23.3,23.8,23.1,23.5,23,22.7
1975,23,22.6,22.8,23.6,23.4,23.2,22.7,23.4,22.9,23,22.6,22.2
1976,22.2,22.7,23,23.4,23.4,23.1,23.3,23.1,23.2,23.2,22.7,23
1977,23.1,22.7,23.3,24.3,24,23.7,24,23.2,23.5,23.5,23.2,23.5
1978,23.6,23.7,23.7,23.9,24.2,23.7,23.4,23.6,23.3,23.2,23.3,23.3
1979,23.4,23.5,23.9,23.9,24.3,23.9,23.3,23.8,23.6,23.5,23.2,23.4
1980,23.3,23.2,23.3,23.9,24.2,23.9,23.7,22.9,23.4,23.5,23,22.6
1981,22.7,23,23.7,23.7,23.8,24.2,23.6,24.1,23.6,23.6,23.1,23.1
1982,23.3,23.3,23.4,23.5,23.9,24,23.3,23.4,23.6,23.1,23.2,23.5
1983,23.7,24,24.5,25.1,24.5,24.4,23.7,23.7,23.5,23.6,23.6,22.8
1984,22.6,22.3,22.9,23.5,23.7,23.6,23.1,23.6,23.3,23.3,23.2,22.8
1985,23.3,23.4,22.8,23.8,23.7,23.9,23.2,23.3,23.2,23.2,23,23.1
1986,22.9,23.2,23.2,23.9,24.1,23.9,23.9,24.1,23.2,23.2,22.9,23.4
1987,23.4,23.5,24,24.3,24.1,24.6,24.2,23.8,23.7,24,23.8,23.4
1988,24,23.7,24,24.4,24.5,23.9,23.7,23.6,23.6,23.9,23.5,22.9
1989,23.5,23,23,23.8,24.2,23.8,24,23.7,23.4,23.4,23.8,23.7
1990,23.4,24.2,24.2,24.4,24.3,24.5,23.7,24.2,23.6,23.7,23.7,23.6
1991,23.9,23.8,23.8,24.2,24.4,24.7,24.3,24.1,24.1,23.6,23.1,23.2
1992,23.5,24,24.4,25.1,24.7,24.2,23.7,23.9,23.9,23.3,22.7,23.2
1993,23.6,23.1,23.5,23.9,24.4,24.4,24.2,24.1,23.6,23.4,23.4,23.4
1994,23.7,23.9,23.4,24.1,24.1,24,24.2,23.5,23.8,23.8,23.3,24
1995,23.9,23.6,23.7,24.4,24.7,24.7,24.5,23.8,24.3,24.3,23.6,22.9
1996,23.4,23.5,24,24.3,24.6,24.7,24.5,23.9,24.4,23.7,23.7,23
1997,23.8,23.6,24.2,24.2,25.2,24.7,24.5,24.8,24.4,24.1,23.9,24.2
1998,24.6,25.1,25.2,24.8,26.2,25.1,24.7,24.2,24.5,24.5,23.7,23.4
1999,23.7,23.5,23.8,24.5,24.3,24.4,24.1,23.9,23.9,23.7,23.7,23.1
2000,23.7,23.5,23.8,24.4,24.8,24.3,24.3,24.3,24.2,24,24,24.1
2001,23.7,23.8,24.2,24.4,24.9,24.7,24.8,24.7,24.3,24.2,24.1,24.2
2002,24.4,24.5,24.9,24.8,25.4,25.1,25.1,24.7,24.4,24.2,24.2,24.6
2003,24.4,24.1,24.5,24.9,25.4,24.8,24.4,24.7,24.6,23.9,24.1,23.9
2004,24.7,24.3,24.7,24.8,25.2,24.9,24,24.6,24.2,23.9,24,23.9
2005,24.2,24.7,24.6,24.8,24.5,24.9,24.4,24.6,23.9,23.8,23.6,23.1
2006,23.7,23.9,24.1,24.3,24,23.9,24.5,24.3,23.7,24.1,23.5,24.1
2007,23.8,23.8,24,24.2,24.7,24.5,24.2,24.2,24.2,23.6,23.7,23.6
2008,23.9,23.6,23.2,24,24.4,24.1,24,24.2,24,24.1,23.8,23.5
2009,23.4,23.7,23.4,24.4,24.7,25.2,24.7,24.2,24.5,24.2,23.8,23.3
