1901,22,22.3,22.6,23.4,24.6,24.6,24.3,24.7,24.8,24.3,23.7,22.8
1902,21.9,22.3,22.2,23.1,24.1,24.5,24.4,24.6,24.6,24.2,23.5,22.8
1903,22.2,22.1,22.2,23.2,24.6,25.1,24.5,24.5,24.6,24.3,23.6,22.6
1904,21.9,21.7,22.1,22.7,24.2,24.6,24.2,24.1,24.4,24,23.8,22.8
1905,21.9,21.7,22.2,23.4,24.2,24.7,24.3,24.6,24.6,24.2,24,22.8
1906,21.8,21.8,22.3,23.1,24.3,24.5,24.4,24.7,24.6,24.4,23.9,22.2
1907,21.5,21.4,21.8,22.6,24,24.6,24.7,24.5,24.7,24.3,23.8,22.9
1908,22,21.9,22.1,22.9,24.1,24.7,24.6,24.8,24.8,24.3,23.8,23
1909,21.9,22,22.5,22.9,24.3,24.3,24.4,24.2,24.7,24.3,23.7,22.2
1910,21.7,21.6,22.1,22.7,23.7,24.6,24.5,24.7,25.2,24.2,23.7,23
1911,21.8,21.7,21.9,22.6,23.8,24.6,24.4,24.7,24.7,24.4,24,22.7
1912,22.1,22.1,22.4,23,24.3,24.6,24.6,24.6,24.7,24.3,23.8,22.8
1913,21.8,21.5,22,22.7,24.7,24.1,24,24,24.3,24.6,23.4,22.3
1914,21.7,21.7,22.2,22.8,24,24.2,24.1,24.1,24.5,24.1,23.7,22.9
1915,22.1,21.7,22.3,23.1,24.9,25.4,25.4,25.8,25.4,25.4,24.3,23.4
1916,22.2,21.9,22.1,23.4,24.9,25,24.7,24.5,24.9,24.2,23.5,22
1917,21.1,20.7,21.7,22.8,24,24.3,24.5,24.3,24.5,24.6,23.7,22.4
1918,21.3,21.4,21,22.4,23.2,23.9,24.5,24.8,24.7,24.2,23.3,22.2
1919,21.5,21.6,21.9,23,24.3,24.6,24.1,24.5,24.4,24,23.3,22.5
1920,21.7,21.9,22.2,22.9,24.2,24.4,24.1,24.2,24.4,23.9,23.4,22.3
1921,21.9,21.7,21.5,22.1,23.7,24.5,24.1,24.1,24.7,23.8,23.4,22.3
1922,21.6,21.7,21.5,23.4,23.7,23.8,23.8,24.2,24.6,23.9,23.1,22.1
1923,20.9,21,21.7,22.7,24.2,24.1,24.1,24.2,24.6,24,23.6,22.4
1924,21.9,21.9,23.2,23.7,24.3,24,23.9,24.9,24.4,24,23.6,22.3
1925,21.2,21,21.3,22.7,24.3,24.2,24,24.4,24.4,24.6,23.3,22.9
1926,22.2,22.1,22.8,23.7,24.9,24.9,24.4,24.5,24.4,24.5,23.9,22.4
1927,21.6,21,21.7,22.1,23.5,24,23.7,24.4,24.3,24.3,23.8,22.1
1928,21.5,21.5,21.9,22.9,24.2,24.4,24.3,24.4,24.5,24.3,23.7,22.5
1929,21.6,21.9,22.4,22.6,23.5,24.4,24.2,24.4,24.5,24.3,23.5,22.3
1930,21.4,21.4,22.2,22.8,24.3,24.4,24.3,24.5,24.5,24.2,24,22.8
1931,22.2,22.1,23,23.6,25.2,25.1,24.7,24.9,24.9,24.8,24.1,22.9
1932,21.8,21.7,22.1,23.8,24.4,24.9,24.5,25.1,25.3,24.4,23.9,22.7
1933,22.2,21.9,22.6,23.4,25.2,25.3,25.5,25.5,25.3,25.2,24.4,22.9
1934,21.6,21.2,21.5,23.7,25.5,24.9,25.2,25.7,25.8,25.5,24.4,23.5
1935,21.9,22.1,22.2,23,24.4,25.4,24.9,24.9,25.4,25,24.2,22.9
1936,21.9,21.5,22.5,23.5,25.3,25.4,25.3,25.8,25.6,25.1,24.6,22.8
1937,21.8,21.9,23.1,23.8,25.1,24.9,24.6,24.9,25.5,25,24.4,23.3
1938,22.4,22,21.9,22.4,23.8,24.6,24.5,24.8,25.1,24.8,23.7,22.9
1939,21.7,20.9,21.7,22.7,24.3,24.6,24.5,25.1,25.4,25.2,24.3,23.4
1940,22.5,23.3,23.4,24,25.7,25.4,25.3,25.5,25.9,25.5,24.3,23.6
1941,22.9,23.5,24.1,24.6,25.8,25.1,25,24.9,25.5,25.4,24.8,24.3
1942,23.3,21.7,24.2,24.9,24.7,25.5,25.5,25.7,25.7,25.5,24.6,23.7
1943,22.7,22.2,22.4,23.7,23.7,24.7,24.4,25.7,25.6,25.4,24.4,23.6
1944,22.5,21.6,22.4,23.6,24.6,25.3,25.2,25.7,25.7,25.7,24.3,23.2
1945,21.9,22.4,22.4,23.5,24.8,25.3,24.9,25.5,25.4,25.3,24.1,22.6
1946,22.4,21.5,22.5,22.8,24.5,24.7,24.9,24.9,25.1,24.9,24,23
1947,22.7,22.2,22.3,23.6,24.8,25.1,24.8,25.4,26,25.2,24.5,23.2
1948,22.1,22.2,22.4,23.1,24.9,25.4,25,25,25.1,24.5,23.9,22.6
1949,22.1,22.3,22.4,23.2,23.9,23.3,23.3,24.6,24.2,23.8,22.6,21.9
1950,21.1,20.5,20.7,22.4,23.5,24.2,23.8,24.4,24.7,24.1,23.8,22.9
1951,21.9,21.5,22.1,23.4,24.8,25.1,24.9,25.2,25.5,25,24.3,23.1
1952,22,22.2,22.9,24,25.1,25.2,24.5,24.6,24.7,24.9,23.3,22
1953,21.8,21.4,21.5,23,24.2,24.8,24.8,24.9,24.5,23.8,23.6,22.4
1954,21.5,21.1,22,23,23.6,24.2,24.5,25.3,24.7,23.2,22.9,22.1
1955,20.9,21.7,21.4,21.5,23.4,23.8,25,24.9,23.7,23.8,22.5,21.7
1956,21.9,22.1,22.1,23.4,23.5,24.3,24.4,24.2,23.5,23.5,23.3,21.9
1957,20.4,20.6,20.5,21.8,22.5,24.3,24.2,24.7,24.2,24.4,23.4,22.4
1958,21.8,21.3,21.3,24.5,25.9,26.1,25.3,25.7,25.8,25.2,23.1,22.3
1959,21.9,21.4,21.8,23.5,24.6,24.8,24.5,24.4,25,24.4,23.8,23.6
1960,22.1,22.7,23,24.3,25.2,25.5,25.1,24.9,25.2,24.7,24.1,23.7
1961,22.5,22.2,22.5,23.1,23.5,24.4,24.9,25.1,24.7,25,23.6,22.5
1962,21.7,21.7,22.5,22.9,24.7,25.4,25.1,25,25.1,24.8,23.5,22.5
1963,21.8,22.2,22.3,23.7,24.8,25.2,24.6,25.2,25.6,25.3,24,23.2
1964,21.4,21.6,22,23.7,24,25,25.1,25.6,25.7,24.3,23.7,21.7
1965,21.7,21.4,21.5,22.7,24.7,24.9,25,24.7,25.4,24.7,24.6,23.5
1966,22.4,22.3,22.7,23.5,24.5,25.2,25.5,25.4,25.1,24.2,23.8,23
1967,21.9,21.7,22.5,23.4,23.7,24.4,24.6,24.1,24.5,24.2,23.4,22.4
1968,21.3,21.5,22.3,23.6,24.6,25.2,24.9,24.4,24.7,24.3,23.6,22.7
1969,22,22.7,23.5,24.8,25.4,25.9,25.4,24.9,25.6,24.5,24.2,23.6
1970,22.9,22.6,22.9,23.7,25.2,25.5,25.3,25.1,24.9,24.4,22.9,22.9
1971,21.4,21.7,22.2,22.8,24.2,24.3,23.9,24,24.1,23.9,23.4,22
1972,21.8,21.6,22.7,23.8,24.4,25,24.9,24.7,25.4,25,24,23.3
1973,22.5,22.6,23,23.1,24.2,24.9,24.8,24.9,24.7,24,23.4,22.1
1974,21.6,21.9,22.5,22.7,23.1,24,24.1,24.5,24.6,24.4,24,22.3
1975,21.9,22,22.7,22.6,24.3,24.5,24.1,24.6,24.7,23.8,23.7,22
1976,21,21.6,21.5,23.1,24,24.4,24.6,24.5,24.6,24.6,23.6,22.2
1977,22.1,22.1,22.6,22.8,24.6,24.9,24.6,25.3,25.6,24.9,24.4,22.7
1978,21.8,22.8,23.4,25.1,25.1,25.5,25,24.8,24.6,24.6,24.4,22.8
1979,21.9,22.4,23.6,24.2,24.8,26.1,25.2,25,25.3,25,24.7,23.3
1980,22.8,22.5,22.7,23.9,25.4,25.6,25.7,25.8,25.6,25.5,24.2,23.8
1981,23.2,24.2,23.5,25,25.3,25.4,25.8,25.6,25.5,25.3,24.9,24.3
1982,22.6,22.9,22.7,24.5,25.6,25.3,24.7,25,25.4,24.9,23.8,23.3
1983,22.5,21.7,23.6,24.2,25.3,25.6,25.3,25.6,25.9,25.3,24.7,23.4
1984,23.1,23.6,23.9,23.9,24.7,25.4,25.3,25.4,25.4,25.1,23.4,23.6
1985,22,22.8,23.4,23.9,25.2,25,24.6,24.8,24.9,24.5,23.7,22.5
1986,21.7,21.5,22.5,23.7,24.2,25,24.5,24.7,24.9,24.5,24.2,23.1
1987,22.3,22.8,23.7,24.6,26.1,26.3,25.9,26,25.8,25.5,25.2,24.2
1988,22.2,22.9,22.7,23.7,24.8,25.8,25.9,25.3,25,23.9,24.5,22.4
1989,22.2,21.9,22.4,23.3,23.9,24.2,25.4,25.6,25.5,24.8,23.8,21.9
1990,21.9,21.9,22.6,23.6,24.4,25.2,24.5,24.2,24.8,24.4,24,22.4
1991,21.4,22.1,22.6,23.4,24.2,24.4,24.4,25.3,25.2,25.1,24.2,22.6
1992,22.5,22.9,23.1,24.3,25.8,26.1,25.6,25.7,25,25.5,24.6,23.6
1993,23,23,23.3,24.8,26.6,26.1,25.7,25.8,25.3,25.5,24.6,23.6
1994,22.4,22.5,23.5,24.4,24.7,25.5,25.5,25.6,25.9,25.2,25.3,23.7
1995,23.1,23.1,23.9,24.9,25.6,26.5,25.9,26,26.2,25.4,25,23.9
1996,22.9,23.9,23.7,24.1,25.3,26.1,26.2,26.3,26.3,25.2,24.9,23.8
1997,22.7,23.1,22.5,24.2,25.4,26.3,25.5,25,25.7,26,24.3,23.8
1998,22.8,23.4,23.7,25.3,26.2,26.6,25.7,26.7,26.2,26.1,25.9,24.4
1999,23.2,23.4,24.2,25,25.4,26.4,26.6,26.1,26.3,25.8,25.6,24.4
2000,22.9,23.2,23.7,24.2,25.6,25.7,25.5,25.5,26.7,25.8,24.9,23.6
2001,23.3,23,23.2,24.5,25.6,26,25.7,26.4,26,25.2,24.8,24.4
2002,22.8,22.6,23.4,24.2,25.1,25.6,24.9,25.4,26.2,24.9,24.1,24
2003,22.9,23.5,23.2,24.7,25,25.5,25.1,25.9,26.2,25.4,24.8,24.1
2004,22.2,22.4,23,24.3,24.5,25,24.8,25.4,25.6,24.8,23.7,22.9
2005,22.9,23,23.5,24.6,25.8,26.1,26.1,26,25.6,24.8,24.1,22.3
2006,21.6,22.3,23.1,23.9,25.6,26.2,25.7,26.1,26,26,25.3,24.3
2007,22.9,21.7,23.7,24.6,25.6,26.1,26.1,25.5,25.6,25.6,25,22.9
2008,23.1,23.2,23.3,24.6,24.6,25.6,25.6,25.9,26.2,24.8,24,23.2
2009,22.1,23,23.3,24.2,24.6,25,26,26.2,26.2,25.2,25.2,23.8
