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