1901,23.9,23.5,23.9,23.1,22.2,20.6,19.6,19.1,20.4,22.2,24.2,23.3
1902,24,23.6,23.5,23.7,22.5,20.6,20,19.3,21.7,22.5,23.8,23.7
1903,23.6,23.5,24,23.6,22.8,21.1,19.6,19.7,20.1,21.9,23.4,23.5
1904,23.2,23.4,23.7,23.1,22.6,20.4,19.3,19.7,20.2,22.7,24.1,23.8
1905,23.7,23.5,23.6,22.8,22.7,21.3,19.6,19.9,20.3,22.8,23.2,23.5
1906,24.2,23.7,24.2,23.6,22.4,20.6,19.6,19.4,20.6,22.1,23.3,23.5
1907,23.6,23.6,23.4,23.3,22.4,20.7,19,19.6,21,23.2,23.6,23.2
1908,23.7,23.4,24,23.4,22,21,19.6,20,21.3,23.2,23.9,23.4
1909,23.4,23.5,23.7,23.3,22.1,20,20.1,19.6,21.3,21.9,23.7,23.3
1910,23.7,23.6,23.7,23.5,22.1,20.1,19.4,19.7,21,22.7,22.7,23.1
1911,23.5,23.1,23.5,22.6,22,20.4,19.8,19.6,21,22.7,23.4,24.2
1912,23.9,23.3,24.2,23.6,22.7,20.8,19.7,19.9,21.7,22.7,24.2,23.7
1913,23.3,23.3,24.1,22.8,22.9,20.5,19.3,20.1,21.1,23.1,23.4,23.4
1914,23.4,23.9,23.8,23.5,22.5,21,19.5,19.9,21.2,22.5,23.1,24.1
1915,23.7,23.7,23.9,23.8,22.6,20.6,20,19.3,20.7,23.1,23.6,23.6
1916,23.7,23.4,23.9,23.5,22.2,20.5,18.9,19.8,20.8,22.5,22.9,22.8
1917,23.2,22.8,23.4,23.2,22.8,20.8,20,19.7,20.6,21.4,23.2,22.9
1918,23.7,23.2,23.6,22.9,22.2,20.8,19.4,19.4,20.9,22.7,23.5,23.7
1919,23.7,23.7,23.9,22.8,21.7,20.5,19.1,20.3,21.7,22.5,24,23.9
1920,23.5,23.4,23.7,22.8,22.4,20,19,19.8,21.7,23.1,23.3,23.2
1921,23.4,23.4,23.4,22.8,22.2,20.5,19.6,19.7,21,22.8,23.4,23.2
1922,23.1,23.3,23.7,22.4,22.1,20.2,19,19.6,20.5,22.2,23.5,23.8
1923,23.9,23.7,24.1,23.6,22.7,20.6,20,19.4,21.3,22.7,23.9,23.7
1924,23.7,23.5,24.2,23.2,22.6,20.7,19.9,19.9,21.1,22.4,23.4,23.4
1925,23.5,23.5,23.6,23.6,22,21.3,20.2,19.5,21.9,22.8,23.4,23.7
1926,24.1,23.9,24.5,24.1,22.8,21.4,20,20.1,21.7,22.9,24.2,23.9
1927,23.6,23.7,23.6,23.4,22.5,20.7,19.3,20,21.1,22.7,23.5,24.1
1928,23.3,23.8,24.1,23.9,22.9,20.5,19.7,19.8,21,22.8,23.7,23.6
1929,23.9,22.9,24.3,23.7,22.4,21,20.1,19.9,21.1,23.3,23.8,23.4
1930,23.2,23.8,23.7,23.4,21.8,20.4,19.4,19.2,21.8,22.4,23.8,23.8
1931,23.2,23.4,23.5,23.1,22.1,20.3,19.6,19.4,20.4,21.8,22.8,23.3
1932,23.7,23.3,23.9,22.9,21.7,20.5,19.6,19.7,20.5,22.1,23.7,23.5
1933,23.6,23.2,23.4,23.2,22.2,20.4,19.6,19.6,20.2,22.4,23.8,23.5
1934,23.2,23.1,23.9,23.5,22.7,19.8,19.5,18.9,20.4,22.3,23.7,23.2
1935,23.7,23.6,24.2,23,22.7,20.5,18.5,19.8,21.6,22.9,23.3,23.4
1936,23.4,24.2,24.2,23.5,22.8,20.2,19.2,19.2,20.9,23.5,24,23.5
1937,23.5,23.8,23.6,23.7,22.5,21.2,19.5,19.7,22,22.6,24.8,23.8
1938,23.8,23.6,24.2,23.6,22.6,20.4,20,20.1,21.1,22.5,23,24
1939,23.8,23.8,23.9,23.6,23,20.9,20,19.6,21.6,22.9,24,23.3
1940,23.2,23.4,23.5,23.1,22,20.3,19.4,19.3,20.4,21.7,22.9,23.4
1941,22.3,23.8,23.9,23.7,22.5,20.6,19.3,19.7,20.9,22.1,23,23.7
1942,23.3,24.5,24.4,24,22.6,20.3,18.8,19,20,21.4,23,23.5
1943,23.1,23.3,23.4,23.6,22.6,19.9,18.5,18.9,19.6,20.4,21.9,22.7
1944,22.6,23.8,23.9,23.2,22.7,20.9,19,19.2,20.7,22.3,24.4,24.2
1945,23.3,23.3,24.2,24,22.6,19.9,19.9,19.6,20.5,22.5,23.8,23
1946,22.4,23.7,23.1,23.7,22.8,20.7,19.7,19.8,19.9,22.1,23.4,22.7
1947,22.9,23.4,23.5,23.2,22.5,20.9,20.2,19.8,20.3,21.8,23,23.8
1948,23.2,23.9,23.6,23.9,23.1,21.1,19.4,19.7,20.8,22.3,23.2,22.9
1949,23.1,23,23.3,22.9,22.1,20.5,19.4,19.5,20.4,22,23,23.4
1950,23.2,23.2,23.7,23.7,22.1,20.7,19.6,19.7,20.5,22.3,23.6,23.9
1951,22.6,23.3,23.2,23.6,22.6,21,20.2,19.9,20.8,22.5,23.5,23.6
1952,23.1,23.7,23.9,22.9,22.2,20.5,19.8,19.5,20.7,21.7,22.8,23.7
1953,23.7,23.8,23.9,23.5,22.6,21.2,20.2,19.5,20.2,21.7,22.9,23.2
1954,22.9,23.3,23.1,23.1,22.6,20.8,20,20.1,21,21.8,22.7,23.6
1955,23.8,23,23,23.3,22.2,20,19.3,19.3,20.4,21.5,22.9,23.4
1956,22.8,23.4,23.7,22.8,21.3,20,18.8,19.3,20.3,21.6,22.4,23.5
1957,22.7,22.4,23,23,21.6,20.3,19.3,19.2,20,21.5,22.6,23
1958,23.9,23.6,23.3,23.5,21.7,20.6,19.7,19.9,20.9,21.6,22.8,23.3
1959,23.6,23.5,22.8,22.7,21.5,20.3,18.9,19.2,20.2,22,22.8,23.2
1960,23,23.8,23.5,23.1,22.2,20.9,19.2,19.1,19.9,21.2,22.1,23.2
1961,23.9,24.3,24.1,23.5,22.7,21.1,20.3,19.9,20.9,22.6,23.7,23.1
1962,23.2,23.6,23.8,23.2,21.8,20.3,19.6,19.9,20.9,22,23,23.6
1963,23.7,23.2,23.8,23.6,21.9,20.5,19.4,18.7,20.1,21.8,23.5,23.5
1964,23.6,23.9,23.9,23.4,21.6,20.2,18.9,19.1,20.1,21.3,22.2,23.1
1965,23,23.1,23,22.8,21.9,19.6,19.4,19.3,20.5,22.1,23.4,23.1
1966,23.8,24,23.8,23.3,22.2,21.1,20.1,19.8,20.9,22,22.8,23.6
1967,22.9,23.7,23.5,23.2,22.3,20.8,20.1,19.8,20.7,22.1,23.3,22.7
1968,22.7,23.3,23,22.8,21.6,20.2,19.7,19.3,20.2,21.5,22.7,23
1969,23.4,23.3,24.3,23.9,22.8,20.5,19.9,19.5,20.3,22.1,23.1,23.8
1970,23.3,23.9,23.9,23.1,22.4,20.8,20.4,20.1,20.8,21.8,22.7,23.1
1971,22.9,22.9,23.4,23.3,21.1,20,19.2,18.4,19.5,20.7,21.7,22.6
1972,22.7,23.1,22.4,22.8,22.3,19.9,19.7,19.4,20.1,21.9,23.1,23.8
1973,23,23.3,23.4,23.3,22.3,20.5,19.5,19.1,20.1,21.2,22.2,22.4
1974,23,22.8,22.6,22.9,21.3,19.7,18.9,18.7,19.4,20.9,22,23
1975,22.7,23.1,22.8,23,22,20,19.3,18.7,19.5,21,22.7,22.5
1976,22.5,22.8,22.9,22.4,21.7,20.7,19.2,18.9,20.3,21.4,22.8,23.2
1977,23.3,23,23.2,22.9,22.4,21,19.7,19.7,20.6,22.4,23.5,23.9
1978,23.4,23.5,23.2,23.2,22.1,20.8,19.6,19.4,20.3,22,23,23.2
1979,23.7,23.5,23.7,23,22.3,20.6,19.8,19.6,20.6,22.2,23.1,23.8
1980,23,23.7,23.4,23.1,21.7,20.3,20.3,20.1,20.5,21.9,23.2,23.2
1981,24,23.7,23.6,23.2,21.8,20.2,19.5,19.8,20,22.1,22.7,23.7
1982,23.6,23.1,23.3,23.1,22.3,21,19.6,19.5,20.7,22.1,23.2,23.3
1983,23.4,23.7,24,23.5,22.3,20.9,20,19.4,20.1,21.6,22.4,22.9
1984,22.6,22.7,23.2,22.3,20.9,19.5,18.9,18.1,19.5,21.3,22.7,23
1985,23.4,22.7,23.4,22.8,21.7,19.8,19.2,19.1,20.1,21.2,22.5,23.8
1986,23,23.7,23.3,23.3,22,19.9,18.9,19.1,20.2,21.6,23,23.4
1987,23.1,23.4,24.3,23.5,22.5,20.2,19.9,20.2,20.6,22.5,23.2,23.8
1988,23.9,23.6,24.1,23.2,21.8,20.7,19.5,19.5,20.1,22.1,22.8,23.7
1989,22.3,22.7,23.2,22.6,21.8,19.8,19.1,18.7,20,21.1,22.4,23.3
1990,22.8,23.6,24,23.3,21.9,20.3,18.9,19.1,20.6,22.1,21.8,23.1
1991,23.6,23.3,23.4,22.8,21.9,20.1,19.2,19.3,20.7,22,23.2,23.1
1992,23.4,23.4,23.9,23.5,22.1,20.3,18.7,19.3,20.1,21.7,23.3,23.9
1993,23.9,23.3,22.8,23.3,22.5,20.6,18.9,19.3,19.8,21.7,22.9,23.5
1994,23.6,23.6,23.8,23.9,22.9,20.8,18.7,20.3,21,21.8,22.6,23.5
1995,23.9,23.7,23.3,23,21.7,20,20.1,19.6,20.3,21.5,22.3,23.2
1996,23.2,23.1,23.3,22.9,21.5,20,18.8,18.8,20.6,20.9,22.5,23.1
1997,23,22.5,24.3,23.4,22.4,20.2,19.3,19.6,20.7,21.8,24.2,24.1
1998,24.1,24.3,24.3,23.7,22.7,21,19.8,19.8,20.4,21.7,23.5,22.9
1999,23.4,23.7,24.2,23,22.3,20.3,19.5,19.3,20.5,21.3,23.2,23.7
2000,24,23.5,23.4,22.5,22.9,20.2,19.1,19.4,20.6,21.6,22.9,23.4
2001,23.6,23.8,23.6,23.7,22.8,20.6,19.6,19.6,20.5,21.5,23.7,23.9
2002,23,24.1,23.6,23.3,21.9,20.1,19.7,19,19.2,21.8,23,23.4
2003,23.3,23.2,24.5,23,22.6,20.3,19.5,19.7,20.1,21.6,23.2,23.1
2004,23.4,24,23.5,22.7,21.4,19.4,19.1,19,20.3,21.8,22.7,23.3
2005,23.5,24.5,24,23.4,22.4,20.6,19.7,19.9,21.2,22.2,23.5,23.3
2006,23.7,24,24.2,23.1,22.4,20.6,19.8,20,20.8,22.1,23.5,23.5
2007,24.2,24.4,24.2,23.6,22.9,20.9,19.6,20.3,20.9,22.3,23.3,23.9
2008,23.9,23.9,23.6,23.3,22,20.2,19.5,19.6,20.8,22.3,23.4,23.5
2009,24.3,24.1,24.1,23.4,22.6,21.3,19.9,20.1,20.8,22.4,23.5,24.2
