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