1901,24,23.2,23.5,21.9,19.9,18,17.2,17,18.6,21.3,24.3,22.8
1902,24.1,23.3,22.8,22.8,20.5,18,17.7,17.3,20.6,21.9,23.7,23.4
1903,23.5,23.1,23.5,22.6,20.9,18.9,17.1,18,18.1,20.9,23,23.1
1904,22.8,23,23.1,21.9,20.6,17.8,16.7,18,18.3,22.2,24.2,23.6
1905,23.6,23.2,22.9,21.5,20.8,19.2,17.1,18.2,18.4,22.4,22.8,23.1
1906,24.4,23.5,24,22.6,20.4,18,17.1,17.5,18.9,21.3,22.9,23.1
1907,23.4,23.2,22.7,22.2,20.4,18.2,16.2,17.8,19.5,22.9,23.3,22.7
1908,23.6,23,23.6,22.4,19.7,18.7,17.2,18.4,20,22.9,23.8,23
1909,23.1,23.2,23.1,22.2,19.8,17.1,17.9,17.8,20,20.9,23.5,22.8
1910,23.5,23.3,23.1,22.6,19.9,17.4,16.9,18,19.6,22.2,21.9,22.6
1911,23.2,22.6,22.8,21.2,19.7,17.7,17.4,17.8,19.5,22.2,23,24.2
1912,24,22.9,24,22.6,20.9,18.3,17.2,18.3,20.5,22.2,24.2,23.4
1913,22.9,22.9,23.8,21.5,21.1,17.8,16.8,18.6,19.7,22.7,23.1,22.9
1914,23,23.7,23.3,22.6,20.4,18.7,17,18.3,19.9,21.9,22.6,24.1
1915,23.6,23.5,23.4,23,20.6,18,17.8,17.3,19.1,22.8,23.3,23.3
1916,23.5,23,23.5,22.5,20,17.9,16,18,19.2,21.8,22.2,22.1
1917,22.8,22.1,22.6,22,20.9,18.4,17.7,17.9,18.9,20.2,22.8,22.2
1918,23.6,22.8,23,21.7,19.9,18.3,16.8,17.5,19.3,22.2,23.2,23.5
1919,23.5,23.4,23.5,21.5,19.2,17.9,16.3,18.9,20.5,21.8,24,23.8
1920,23.3,23,23,21.4,20.4,17.1,16.2,18,20.5,22.8,22.8,22.7
1921,23,23,22.6,21.5,20,17.8,17.1,17.9,19.6,22.4,23,22.6
1922,22.6,22.9,23.1,20.7,19.9,17.4,16.3,17.8,18.7,21.4,23.3,23.6
1923,23.9,23.4,23.7,22.7,20.9,18.1,17.8,17.4,20,22.2,23.8,23.5
1924,23.5,23.2,23.9,22,20.7,18.2,17.7,18.3,19.7,21.7,23.1,23
1925,23.2,23.2,23,22.6,19.7,19.2,18.2,17.6,20.9,22.3,23.1,23.5
1926,24.2,23.8,24.4,23.5,21,19.4,17.8,18.6,20.6,22.5,24.2,23.7
1927,23.5,23.5,23,22.4,20.4,18.3,16.7,18.4,19.7,22.2,23.3,24
1928,23,23.6,23.7,23.2,21.1,17.9,17.2,18.1,19.6,22.4,23.6,23.3
1929,24,22.3,24.1,22.8,20.4,18.8,17.9,18.2,19.7,23.1,23.7,23
1930,22.8,23.7,23.1,22.3,19.4,17.7,16.9,17.2,20.7,21.7,23.7,23.5
1931,22.9,23.1,22.9,22,20.1,17.7,17.2,17.6,18.6,21,22.2,22.9
1932,23.5,22.9,23.4,21.6,19.2,17.8,17.2,17.9,18.7,21.2,23.6,23
1933,23.4,22.7,22.6,22.1,20,17.7,17.1,17.8,18.2,21.8,23.7,23.1
1934,23,22.8,23.4,22.3,20.4,16.8,17,16.7,18.5,21.3,23.1,22.6
1935,23.3,23,23.6,21.7,20.7,18,15.8,18,20,22.1,22.7,22.9
1936,23.1,24.1,23.7,22.3,20.6,17.5,16.8,17.3,19.2,22.8,23.5,23
1937,23.1,23.4,22.9,22.4,20,18.7,17,17.7,20.5,21.6,24.6,23.5
1938,23.6,23.3,23.7,22.6,20.6,17.7,17.7,18.3,19.4,21.7,22.3,23.7
1939,23.6,23.6,23.2,22.4,20.8,18.3,17.5,17.5,19.8,22.1,23.5,22.8
1940,22.7,22.9,22.9,22,19.7,17.7,16.8,17.2,18.6,20.5,22.3,23.1
1941,22.1,23.4,23.5,22.7,20.3,18.3,17,17.9,19.7,21.7,22.8,23.6
1942,23.4,23.9,23.9,22.5,20,17.9,16.7,17.7,19.2,20.3,22.7,23.2
1943,22.8,22.7,22.8,22.5,20,17.5,16.4,17.6,17.4,20.4,22.3,22.8
1944,22.8,23.4,22.9,21.8,20.2,19,16.7,17.7,19.3,21,23.5,23.3
1945,23.7,22.9,23.7,22.9,20.1,17.4,16.9,17.6,19,22.4,22.9,22.9
1946,23,23.6,22.8,22.3,20.3,17.9,17.4,17.9,18.1,21.6,22.6,23
1947,23.4,23.7,22.7,22.5,20.3,18.1,18.1,17.5,19,21.1,22.6,23.7
1948,23.4,23.5,23.4,23.1,21.4,18.5,17.4,17.9,19.1,21.4,22.9,22.7
1949,23.6,23.4,23.3,21.9,20.2,18,17.3,18.4,19.6,22,23.1,23.7
1950,23.6,22.7,22.9,22.2,19.3,17.8,16.7,17.8,18.2,21.1,22.9,23.3
1951,21.6,22.3,22.3,22.1,20.2,18.1,18,18.9,19.1,21.5,22.5,23.4
1952,22.7,23.3,23.2,22.4,20.3,17.9,17.4,18.1,18.7,20.8,21.9,23.2
1953,23,23.3,22.9,22.2,20,18.9,17.8,17.6,18.5,20.7,22.5,23
1954,22.2,23.2,22.6,22.2,20.6,18.1,17.5,18,19.1,21.1,21.9,23
1955,23.3,22.8,22.3,21.6,20,17.6,17.6,17.6,18.8,20.9,22.4,22.9
1956,22.1,22.6,22.9,21.9,19.6,17.6,16.9,17.7,18.7,20.8,22,22.9
1957,23.1,22,22.4,21.5,19.4,17.6,16.7,17.5,19,21,22.3,22.9
1958,22.9,22.9,22.8,22.6,19.2,17.6,17.1,18,19.3,20.6,22.1,22.2
1959,22.6,23.1,22.3,21.2,19.4,17.5,16.4,17.1,18.6,20.1,22.3,23.3
1960,22.9,23.2,22.2,21.7,20,18.1,16.8,17.2,18.3,20,21.6,22.6
1961,23.3,23.8,23,22.5,21.1,18.4,18.2,17.9,18.9,21.3,23.1,22.7
1962,23.1,23.3,23,22.3,19.2,17.3,16.7,17.7,18.7,20.5,21.7,23.1
1963,22.9,23,23.2,22.5,19.3,17.7,16.9,16.4,18.2,20.7,22.2,22.8
1964,23.2,23.7,22.9,22.4,19.4,17.6,16.1,16.8,18.2,19.8,21.9,22.6
1965,22.2,22.6,22.2,21.3,19.1,16.6,16.5,17.4,18.6,20.7,22.4,22.6
1966,23.9,23.2,22.8,22.6,20.5,18.4,17.7,17.6,19.5,20.6,22.1,23.2
1967,22.8,23.6,23,22.2,20.6,18.4,18,18.2,19.3,21.2,22.3,22.4
1968,22.5,23,22.8,21.7,19.3,17.4,16.8,17.1,18.5,20.5,22.4,22.6
1969,23.4,23.2,23.7,22.9,20.3,17.8,17.8,17.4,19,21.6,23.2,23.5
1970,22.8,24,23.4,22,20,17.8,17.2,17.5,18.5,20.9,22,22.5
1971,22.4,22.6,22.7,22.1,19.5,17.1,16.7,16.5,17.8,19.9,21.2,22.1
1972,22.1,21.8,21.8,21.6,20.1,16.5,17.3,17.6,18.4,20.6,22,23.1
1973,22.5,23.1,22.9,21.9,19.3,18,16.7,17.1,18.5,20.4,21.7,21.9
1974,22.3,22,22.1,21.7,19.4,16.9,16.4,16.8,17.6,19.6,21.7,22.3
1975,22.3,22.5,22.2,21.9,19.6,17.2,16.7,16.4,17.5,19.7,21.6,22.3
1976,21.6,22.5,22.3,21.5,19.8,17.7,17.1,17.2,18.1,20.1,21.9,22.9
1977,22.9,22.2,22.5,21.6,20.3,18,17,17.9,18.5,21.4,22.4,23.3
1978,23.3,23.2,22.5,21.8,19.6,17.7,17.1,17.4,18.9,20.9,21.9,22.2
1979,23.1,22.7,23.1,21.3,19.6,17.2,16.6,17.3,18.9,20.9,21.8,23.1
1980,22.8,23.5,22.6,21.9,19.3,17.2,17,17.2,18,20.6,22.5,22.7
1981,23.4,22.9,22.6,21.8,19.2,17.3,16.4,17.8,18.4,20.9,21.9,23.2
1982,22.4,23,22.6,21.7,19.6,18.4,17.7,17.7,18.6,20.7,22.2,22.9
1983,22.6,23.6,23.2,22,20,18.3,17.4,17.3,18.3,20.5,22.3,22.5
1984,22.4,22.4,22.7,21.2,19.4,17.2,16.2,16.6,18.1,20.5,22.3,22.8
1985,23.4,22.7,22.5,21.1,18.9,17.2,17,17.6,18.3,19.5,21.6,22.9
1986,22.7,23.2,22.8,22.3,19.6,16.5,16.1,17.1,18.1,20.3,22.3,23.1
1987,22.5,23.3,23.5,22.3,19.8,17,17.4,18,18.7,20.9,22.5,23.5
1988,23.1,23.2,23.1,22.4,19.3,18.3,17.3,17.5,18.1,21,22.1,23.2
1989,22.4,22.7,22.7,21.5,19.8,17.8,17.1,17.3,18.4,20.4,22.2,23.2
1990,23,23.5,23.3,22.5,19.9,17.9,16.2,17.9,19,21.1,21.3,22.6
1991,23.8,23.1,23.3,21.8,20.3,17.5,16.5,17.3,19,20.9,22.6,22.5
1992,23,22.7,23.6,22.1,20.1,17.8,15.9,17.3,18.5,20.8,22.8,23.9
1993,23.5,23,22.2,22.3,20.1,18.3,16.7,17.3,17.8,20.6,22.1,23.1
1994,23.1,24,23.1,23.2,20.4,18.4,16.2,18.7,19.5,21.1,22.7,23.8
1995,23,23.7,23.1,22.4,20.1,17.7,17.3,18,19,20.7,22.2,23.2
1996,22.9,23,23.1,22.5,19.9,18,16.7,17,19.4,20.2,22.7,23.1
1997,22.2,22.8,23.3,22.6,19.9,18,17.2,18,19.5,20.7,23.6,23.9
1998,23.9,23.8,24.1,22.5,20.4,18,17,18,18.7,20.5,22.4,22.8
1999,23.3,23.6,23.1,22,20.2,17.7,16.6,17.4,18.7,20.4,21.9,23
2000,23,23.1,23.1,22.2,20.5,17.8,16.9,17.9,18.5,20.9,22.4,23
2001,22.8,23.5,23.9,22.6,20.6,17.7,17.1,17.5,18.5,20.8,22.8,23.2
2002,22.7,23.5,23.4,22,19.8,17.7,17.6,18.2,18.3,21.1,23,23.2
2003,22.9,23,23.8,22.1,21.3,18,16.9,17.4,18.4,21,22.9,23.1
2004,22.8,23.4,23,22.1,19.6,16.8,17.1,17.5,19.6,21.1,21.9,22.8
2005,23.6,24.4,24,22.7,20.6,18.4,16.9,18,19.4,21.3,23,22.8
2006,23.2,23.6,23.4,22,20.2,18.1,17.3,17.9,18.7,21.2,23,23.7
2007,23.7,23.7,23.6,22.4,20.8,18.2,17.3,18,19.1,21.2,22.8,23.7
2008,23.4,23.4,22.8,21.7,19.9,17.5,17.2,17.8,18.7,21.3,22.7,23.4
2009,23.9,24,23.4,22.2,20.3,18.5,17.5,17.9,19.1,21.3,22.7,23.6
