1901,23.9,23.6,23.5,23.3,23,22.1,21.1,21,21.6,22.6,23.4,23.8
1902,23.6,23.6,23.6,23.4,23,22,21.3,21.2,21.6,22.4,23.4,23.7
1903,24.4,23.9,24.1,23.6,22.9,22,21.6,21.2,21.7,22,23.3,23.7
1904,23.5,23.4,23.5,22.9,22.9,21.2,20.8,20.4,21,21.9,22.7,23.7
1905,23.9,23,23.9,23.6,23.2,22.4,21.1,20.5,21.4,22.4,23.1,24.5
1906,24.5,24.8,24.1,24.3,23.4,22.5,21.6,20.9,21.6,22,23.1,24.1
1907,23.1,23.3,23.2,23.2,22.6,22,20.8,20.6,21.1,22.5,23,23.2
1908,23.2,23.6,23.5,23.7,23.1,21.4,20.8,21.1,21.8,21.9,23,23.1
1909,23.6,23.9,23.4,23.5,23.1,22.1,22.1,21.8,22,22.7,23.2,23.1
1910,23.4,23.4,23.3,23,22.7,21.8,21.5,21.1,22,22.5,23.4,23.7
1911,23.6,23.5,23.3,22.9,22.3,21.2,20.5,21,21.1,22.5,23.1,24.1
1912,23.8,23.6,23.5,23.4,22.4,22.6,21.2,20.2,22.2,22,23.5,23.4
1913,23.5,23.2,23.1,23.1,21.9,21,20.6,19.8,21.3,21.8,23.6,23.8
1914,23.6,23.3,23.5,23.4,22.8,21.2,20.5,19.9,21.1,21.7,22.9,23.9
1915,24.2,24.1,23.3,23.3,22.9,21.8,21.9,21.5,23,22.9,23.9,23.6
1916,23.8,23.6,23.7,23.7,22.5,22.3,21.9,21.6,22,22.9,23.1,23.5
1917,23.6,23.5,23.5,23,22.5,21.5,21.3,21.5,21.9,22.7,23.6,23
1918,23.2,23,23.1,22.9,22.2,21.4,20.2,20.9,21.2,22.2,23.5,23.3
1919,23.7,23.6,23.5,23.4,23,21.6,20.4,20.4,21.1,22.2,23,23.6
1920,23.3,23.2,23.4,23.4,22.9,22.3,21.5,21.7,22.1,22.5,23.3,23.4
1921,23.1,23.4,23.6,22.8,22.8,22.4,20.8,19.8,21.7,22.3,22.9,23.4
1922,23.7,23.5,23,22.9,21.9,21.6,20.7,19.8,21.3,22.2,22.9,23.8
1923,23.8,23.3,23,22.9,22.5,21.1,19.7,20.4,20.6,21.9,23.2,23.8
1924,24.1,24.2,24.5,23.2,23.2,22.2,21,21,21.6,22.8,24.2,23.8
1925,24.2,23.9,23.6,22.5,22.2,21.3,20.6,20.3,20.9,21.4,23.2,24.3
1926,23.9,24.5,24.8,23.8,23.2,21.8,21.2,21.3,22,22.9,23.5,24.1
1927,23.8,24.7,24.8,23.7,23.2,22.6,21.2,20.2,20.7,21.8,23,24.1
1928,23.8,24.5,24,24.1,22.8,21.2,20.5,20.8,21.6,22.6,23.6,24.6
1929,23.6,23.1,23.5,23.6,22,21.4,20.9,20.3,20.6,22,23.7,23.3
1930,24.2,23.6,23.5,23.3,23.6,21.9,20.8,20.7,20.4,22,22.9,23.7
1931,24.4,23.6,23.4,22.4,22.7,21.3,20.3,21.4,20.6,22.4,22.7,24
1932,24.6,24.5,24.3,24.3,23.3,22,20.3,20.4,21.2,22.3,23.3,23.9
1933,24.7,24.2,24.1,23.7,22.9,21.9,21.2,21.3,21.6,22.6,23.3,23.6
1934,24,24.2,23.7,23.9,23.1,22.6,21.7,21,20.8,22.1,24.2,24.3
1935,24.4,24.5,23.7,23.4,22.6,21.8,21.4,20.6,21.3,22.3,23.2,24.1
1936,24.4,24.1,24.2,23.7,22.8,22.3,21.6,20.7,21.6,22.1,23.5,24.3
1937,23.9,24.4,24.1,23.7,23.4,22.4,21.3,20.7,21.5,22.4,23.9,24.2
1938,23.9,23.7,24,24,22.8,22.2,21.3,21.3,21.1,21.8,23,23.6
1939,23.7,23.6,23.4,23.2,22.4,21.7,21.5,20.8,21.2,22,23.4,24.3
1940,23.3,23.3,23.3,23.3,22.8,22,21.2,20.8,21,21.3,23.5,24.2
1941,23.6,23.5,23.5,22.9,22.5,21.2,19.8,19.6,20.1,22.3,22.2,23.1
1942,23.6,23.8,24.2,24.1,23.7,22.5,22,20.8,21.8,22.4,23.1,23.8
1943,23.5,23.5,23.1,22.7,22,21.1,21.2,20.9,21.2,22.1,22.7,23.5
1944,23.7,23,22.8,23.1,22,21.5,20.4,20.2,21.2,21.9,23,23.3
1945,23.6,23.4,23,23.1,22.1,22.1,20.9,21.2,21.6,21.9,23,23.2
1946,23.5,23.4,23.5,22.8,22.4,20.7,20.4,20,21,21.4,22.8,23.9
1947,23.2,23.2,23.7,23.2,22.8,22.3,21.2,21.1,21.9,22.1,23.6,23.6
1948,23.9,23.7,23.5,22.6,22.8,21.6,21.6,21,20.9,22.4,22.8,23.2
1949,24.3,23.7,23.5,22.9,22.3,20.7,21.1,20.7,21.4,22.5,23.1,23.4
1950,23.1,23.4,23.7,23,22.6,22.1,21.3,21.5,22.3,22.3,24.7,23.3
1951,23.1,25,23.8,23.9,23.1,21.9,21.3,21.7,21.8,22.9,23.2,24.8
1952,23.7,24.5,24.7,24.3,23.8,22.6,21.4,21.9,22,23.2,23.5,23.7
1953,23.5,23.5,23.7,23.5,23.1,22.1,21.1,20.9,21.5,22.8,24,24
1954,23.9,24.1,23.4,23.7,22.5,21.9,21.3,21.5,21.8,22.5,23,23.6
1955,23.3,23.5,23.5,23.6,24,22.3,22.1,22.1,22,23.1,23.5,24.3
1956,23.9,23.4,23.8,23.5,24.3,23.2,22.8,22.2,22.2,23.6,23.7,23.6
1957,23.8,23.2,23.5,23.3,23.1,21.9,21.9,21.6,21.4,22.5,23.6,24
1958,24.7,24.3,24.6,24.2,24.4,23.4,21.4,21.9,22.1,22.7,22.6,24.3
1959,23.2,23.9,23.2,22.6,22.3,21.2,20.9,20.5,20.9,22.2,23.6,24.4
1960,23.4,23.5,22.7,22.6,22.9,21.4,20.8,21.1,21.3,22.3,23.3,23.5
1961,23.1,23.8,23.5,22.8,22.1,20.9,21,20.9,21.2,21.8,23.1,23.8
1962,24.2,23.3,23.2,22.5,22.4,21.8,21.1,20.9,21.9,22.9,23.7,23.6
1963,23.7,23.3,22.8,22.5,22.6,21.4,20.3,20.9,21,21.7,22.7,24
1964,23.5,24.2,23.2,23.6,22.9,22,22.1,21.2,22.2,23,23,23.4
1965,22.8,23.5,23.1,23.2,22.8,20.8,19.1,20.3,21,21.8,22.7,23.3
1966,22.6,23.7,23.3,23.2,22.5,21.4,20.4,21,21.6,22.4,22.9,23
1967,23.3,22.7,23,22.8,22.3,20.9,20.2,21.2,21.2,22,22.9,23.9
1968,22.8,22.6,23.6,23,22.6,21.6,21.2,21.2,21.3,22,22.6,23.4
1969,22.8,23.3,23.7,23.5,23,21.6,21.2,20.9,21.6,22.3,23,24
1970,23.9,23.9,23.5,23.3,22.9,22.1,20.9,21.4,22.1,23.1,22.8,23.4
1971,23.7,23.2,22.9,22.8,22.7,21.8,21.2,21.7,22.2,23.5,23.6,23.8
1972,23.4,22.8,23,22.9,22.2,21.6,20.8,20.3,20.2,21.7,23.2,23.7
1973,23.9,24.1,23.7,23.4,23.2,22.8,21.3,21.9,22.3,23,22.7,23.2
1974,23,23.5,22.8,23.2,22.7,21.2,21,21.6,22.5,22.8,23.5,23.5
1975,23.8,23.4,23.4,23.4,23.3,22,22.2,21.8,22.3,23.1,23.8,22.2
1976,22.4,23.5,22.9,23.3,23,21.7,21.2,20.4,20.9,23,24,24.4
1977,23.5,23.9,23.6,23.2,22.3,21,20.6,20.7,21.2,21.8,23,23.7
1978,23.9,24,23.9,23.5,23.4,22.2,21.5,21.5,21.8,22.2,23.4,23.9
1979,23.6,23.9,24,23.6,23,22.5,21.2,20.5,21.6,21.9,23.6,23.8
1980,23.9,23.7,23.6,23.9,23.3,22.5,21.3,21.2,21.1,22.3,23.3,23.5
1981,23.4,23.6,23.7,23.4,23.4,22.3,22.2,21.4,22.3,22.3,23.6,24.1
1982,23.6,23.7,23.8,23.6,23,21.7,20.5,20.3,20.8,21.4,22.6,24.1
1983,24.1,24.4,23.8,23.8,22.6,22.4,21.2,21.3,21.9,23.1,23.7,23.8
1984,23.6,23.4,23.3,23.4,23.1,21.7,21.1,21.5,22.4,22.4,23.6,23.7
1985,23.9,24,23.9,23.1,23.4,21.5,20.4,21.2,21.4,22.6,23.7,24
1986,23.7,23.9,23.9,23.2,23.2,22.2,21.8,21.3,21.8,23.2,23.8,24.4
1987,24.2,23.1,24,23.7,23.3,22.8,21.2,21.3,21.9,22.7,24.7,24.4
1988,24.4,24.3,24.1,24,23.4,22,22,22.1,22.8,23.7,24.3,23.9
1989,24,23.8,23.3,23.4,23.3,22.4,22.1,21.5,22.3,22.8,23.9,23.9
1990,24.1,24.7,24.7,23.9,23.5,21.9,22.2,21,21.4,22.4,23.7,24.7
1991,24.1,23.5,23.8,23.9,22.7,21.6,21.4,21.2,21.1,21.8,23.4,24.1
1992,24.2,24,24.2,23.2,23.3,21.8,21.1,21.4,22.3,22.6,23.3,23.1
1993,23.2,23.1,24,23.2,22.8,22.4,21.9,21.2,22.2,23.3,23.5,23.2
1994,24.3,23.7,23.8,23.2,22.8,21.8,21.1,20.7,21.2,22.6,23.3,23.6
1995,23.9,24,23.7,23.6,22.8,22.2,21.4,21.2,21.5,21.9,23.7,23.4
1996,24,23.7,23.5,23.1,22.5,22.2,20.8,21.3,21.8,22.3,23.3,23.6
1997,23.3,23.7,23.4,23,22.5,21.9,21.2,21.1,21.9,22.4,23.2,24
1998,23.7,24.2,23.9,23.9,23.3,22.3,21.8,21.5,22.3,23.1,23.8,23.5
1999,23.8,23.8,23.5,23.2,22.8,22.4,21.2,21.1,21.7,22.7,23.4,23.4
2000,23.8,23.5,23.5,23.3,22.7,21.3,21,21.1,21.7,22.6,23.6,23.1
2001,23.5,23.5,23.6,23.4,22.6,22.3,21,20.8,22,22.8,23.8,23.8
2002,24,23.2,23.8,23.5,23.2,22.1,21.3,20.6,21.7,22.8,23.6,24.4
2003,23.4,23.8,23.5,23.8,23.3,22.9,21.8,21.2,21.9,23.3,23.6,24.3
2004,24.4,23.6,23.8,23.6,23.5,21.7,21.2,20.6,21.3,22.7,23.6,23.7
2005,23.8,24.3,23.6,23.2,22.5,22.3,21.7,20.9,21.9,22.9,23.3,23.9
2006,23.6,23.7,23.4,23.3,22.7,21.6,20.9,20.7,21.3,22,23.3,23.4
2007,23.6,23.3,23.3,23,23.1,21.5,20.5,21,21.4,22.5,23.2,23.7
2008,23.6,23.5,23.2,22.8,22.4,21.9,21,20.9,21.8,22.5,23.7,23.7
2009,23.5,23.4,23.6,23.4,22.7,21.9,21.2,21.2,22,22.4,23.1,23.5
