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