1901,21.8,21.9,22,22,21.8,21.5,21.1,21.3,21.4,21.7,22,21.9
1902,21.8,21.9,22,22,21.8,21.5,21.1,21.3,21.4,21.7,22,21.9
1903,21.8,21.9,22,22,21.8,21.5,21.1,21.3,21.4,21.7,22,21.9
1904,21.8,21.9,22,22,21.8,21.5,21.1,21.3,21.4,21.7,22,21.9
1905,21.8,21.9,22,22,21.8,21.5,21.1,21.3,21.4,21.7,22,21.9
1906,21.8,21.9,22,22,21.8,21.5,21.1,21.3,21.4,21.7,22,21.9
1907,21.8,21.9,22,22,21.8,21.5,21.1,21.3,21.4,21.7,22,21.9
1908,21.8,21.9,22,22,21.8,21.5,21.1,21.3,21.4,21.7,22,21.9
1909,21.8,21.9,22,22,21.8,21.5,21.1,21.3,21.4,21.7,22,21.9
1910,22,22,21.8,21.6,21.9,21.7,21.3,21.2,21.7,21.6,22.2,22
1911,21.9,22.2,22.3,22.2,21.9,21.4,21.2,21.4,21.7,22.1,22.4,22.3
1912,21.8,21.9,22.8,22.5,21.9,22,21.2,21.7,21.3,22.2,22.6,21.8
1913,22,22.6,22.3,22.3,21.7,21.8,21.3,21.1,21.5,21.9,22.4,22.4
1914,22.8,22.4,22.5,22.3,22.1,21.7,21.8,21.5,22,22.1,22.5,22.5
1915,22.4,22.4,22.7,22.5,22.7,21.8,21.4,21.8,21.5,22.3,21.9,22.1
1916,21.9,22,22.2,22.3,21.9,21.2,21.3,21.3,21.6,21.5,21.9,21.6
1917,21.5,21.5,21.7,21.5,21.2,21.1,21.1,20.7,20.9,21.2,21.7,21.2
1918,21.2,21.5,22.1,21.8,21.5,21.4,21,21.1,21.4,21.9,22.2,22
1919,22,22.3,22.3,21.8,21.8,22,21.3,21,21.1,21.5,22.2,21.7
1920,21.9,21.8,22.1,22,21.7,21.4,20.9,21,21.5,22.2,21.9,21.5
1921,21.6,21.6,21.4,21.4,21.4,21.1,20.3,20.9,21.1,21.5,21.6,21.9
1922,21.6,21.5,21.5,21.6,21.2,21.2,20.7,20.9,21,21.5,21.7,21.3
1923,20.8,21.7,21.5,21.3,21.1,21.4,20.3,21,21.1,22,22.1,21.5
1924,22.8,22.4,22.5,22.2,21.3,20.7,20.9,20.8,20.6,20.8,21.7,21.2
1925,21.1,21,21.2,21.8,21.9,21.4,21,21,21,22.2,22.2,22.5
1926,22.3,22.5,22.7,22.3,21.5,21.3,21,21.3,21.4,21,21.9,21.1
1927,21.1,21.1,21.2,21.4,21.1,21,20.1,20.4,20.5,20.6,21.6,21.9
1928,21.5,21.4,21.5,21.6,21.3,21.4,20.5,20.5,20.6,21.1,21.5,21.3
1929,21.6,21.6,21.2,21.3,21.2,21.3,20.2,20.7,21,21.5,21.7,21
1930,21,21.3,21.9,21.5,21.5,21.2,20.4,20.8,20.6,21.1,21.9,21.6
1931,22.5,22.2,22.2,22.1,21.7,21.4,20.5,20.9,20.9,21.4,21.4,21.1
1932,21.2,21.7,21.2,21.4,21.2,21,20.9,21,21.1,21.4,22.3,21.6
1933,21.7,21.2,21.3,21.6,21.6,20.9,20.8,21.2,21.5,20.6,21,20.9
1934,21.2,20.5,21,21.4,21.5,21.4,20.8,20.9,21,20.5,21.6,21.6
1935,21.9,21.4,22,21.5,21,20.9,21.2,20.9,20.8,21.9,21.8,22
1936,21.2,21.9,21.6,21.3,21.9,21.5,21,21.1,21.3,21.6,22.2,21.9
1937,21.2,21.6,22,21.6,21.7,21.5,21.3,21.4,21.5,21.6,22.5,22.4
1938,22.1,22.1,21.5,21.3,21.2,21.1,21.5,21,21.3,22,21.9,21.9
1939,21.2,21.3,21.1,20.9,21.5,21.5,21.3,21.2,20.9,22,22.7,22.7
1940,22,22.3,22.4,21.8,22.1,21.9,21.6,20.8,21.2,22.1,22.6,21.6
1941,21.5,22.2,22.5,22.4,22.2,21.2,21.6,21.6,21.1,22.5,23.1,22.4
1942,21.9,21.3,22.2,22.3,21.5,20.8,20.9,21.2,21.3,21.8,22.5,21.7
1943,21.5,20.7,21,21.2,21.4,21.2,21.7,20.6,20.9,22.4,22.6,21.7
1944,21.2,20.7,21.2,21.6,21.6,21.4,21.8,21.5,20.6,22.1,22.6,22.3
1945,21.6,21.1,21.7,21.6,21.2,21,21.5,21.4,21.5,21.8,21.9,21.8
1946,21,21.2,21.6,21.5,21.5,21.3,21.1,20.5,20.7,21.8,22.1,22.3
1947,21.5,21.8,22.3,21.5,21.4,21.4,21.4,20.7,20.7,21.8,21.7,21.8
1948,21.4,21.3,21.6,21.4,21.4,21.2,21.3,21,21,22.1,22.4,22.4
1949,21.2,21.1,21.6,21.2,21.1,21.2,21,20.8,20.9,21.5,21.6,22.2
1950,21,20.4,21.3,21.6,21.3,21.2,20.9,20.6,21.2,21.3,22.3,21.6
1951,21.1,20.6,21.3,21.2,21.2,21,21.3,21.2,21.3,21.8,22.3,22.1
1952,21.4,21.1,22.5,21.8,21.6,21.3,21.2,20.9,20.7,21.8,22.2,22.1
1953,21.6,21,21.5,21.7,21.8,21.7,21.2,21.5,21.5,22.4,22.4,22.3
1954,21.5,21.3,21.8,21.9,22,21.5,21.3,21.3,21.2,21.6,21.8,21.7
1955,21.8,20.9,21.2,21.5,21.6,21.5,20.8,21,21,22,21.7,21.7
1956,21.1,20.9,21.4,21.6,21.3,21.2,21.1,20.4,20.6,21.3,21.9,21.9
1957,20.9,22,21.6,22.1,22,21.6,21.3,21.5,22.1,22,22.2,22.5
1958,22.5,22.3,22.1,22.1,22.3,22.2,21.8,21.8,22.7,22.4,21.8,22.5
1959,22.5,21.6,22,21.9,21.5,21.3,21.7,21.3,21.2,21.7,22.2,22.2
1960,21.9,21.5,22.1,21.4,21.2,21.1,20.7,21.2,20.6,21.9,21.8,22.3
1961,21.9,21.5,22.2,22.3,22,21.2,21.3,21.3,21.5,21.6,22.4,21.5
1962,21.5,21.7,21.8,21.9,21.5,21.1,21.1,21.2,21.6,22.2,22.3,22.4
1963,21.7,21,22,21.5,21.8,21.2,21.9,21.9,21.6,22.6,21.9,22.1
1964,22.7,22.4,22,21.7,21.6,21.2,21.4,21.8,21.6,21.4,21.6,21.2
1965,22,21.3,21.9,22.3,22.2,21.8,21.6,21,21.9,22.6,21.8,21.9
1966,22.7,22.2,21.6,22.2,22.5,21.8,21.2,21.1,20.9,22.7,22,21.6
1967,21.1,21.3,21.4,21.5,21.6,21.4,22,21.1,21.4,21.5,22.4,21.8
1968,21.4,22.1,21.5,21.8,20.6,21.2,21.5,21.1,20.3,21.6,21.9,22
1969,21.5,21.9,22.2,22.3,22.5,22,21.3,21,21.8,22,23,21.9
1970,21.9,21.5,21.9,21.8,22,21.5,21.3,21.1,20.6,22.8,22,22
1971,21.1,20.9,21.1,21.2,21,21,21.4,21.6,21.5,21.7,21.7,23
1972,20.9,21.1,21.5,21.8,21.8,21.5,23,21.3,21.6,22.3,23.6,23.9
1973,23.1,22.7,22.6,22.2,21.7,22.2,21,21.5,21,23.3,21.8,21
1974,21.4,21.5,22,22.1,21.9,21.5,20.6,21.5,20.8,19.8,21.3,20.6
1975,21.4,21.5,21.8,21.7,21.6,21.4,20.2,21,21.3,21.1,21.8,21.6
1976,21.1,21,21.1,21.6,21.5,21.3,21.1,22,21.9,22.1,21.4,21.4
1977,22.9,21.3,21.7,22,21.6,21,21.6,21.6,21.6,21.4,21.9,21.6
1978,22.1,22.2,22.1,21.8,21.6,21.4,21,20.5,21.3,21.4,22.1,24.4
1979,22.1,22.7,21.5,21.9,22.1,21.3,21.2,21.9,22.1,21.5,22,21.4
1980,22.4,23.6,22.3,22.1,22,21.3,20.9,20.5,21.2,20.6,21.5,21.8
1981,21.4,21.2,22.6,22.5,22.2,21.9,20.4,20.5,20.9,22,21.5,21.4
1982,21.7,22,22.3,22,21.6,22.1,20.3,21.3,21.6,21.2,22.5,21.1
1983,22.9,22.6,22.9,22.5,23.1,21.8,19.2,21.7,22.1,21,21.4,20.5
1984,21.3,20.3,22.1,22.3,22.3,21.5,20.4,21.1,20.4,21.4,22,22
1985,24.5,20.9,21.9,22.8,22,20.8,20.3,20.6,20.9,21.3,21.2,21.1
1986,20.2,23.3,22.1,20.9,21.5,21.2,19.3,21.9,21.2,21.1,21,21
1987,21.9,21.3,22.6,22.3,21.9,21.7,23.3,21.3,22.2,23.7,22.8,24.4
1988,22.9,22.6,23.1,22.4,22.5,21.4,20.9,22.4,21.7,22.1,22.2,22.3
1989,21.4,21.8,21.7,22.4,21.4,21.2,19.9,22,22.1,22.3,22.1,22
1990,21.7,22,22.5,22.1,22.3,22.1,20.4,21.6,21.5,21.9,21.8,21.5
1991,21.9,22.3,22.7,22.5,22.6,22.3,21,20.7,21.2,21.4,22.1,22
1992,22,22.5,22.2,22.4,22.2,22,20.2,20.8,21.2,21.6,21.4,21.5
1993,22.3,22.5,21.7,22.2,21.7,22.1,20.9,22.2,21,22.2,21.5,21.1
1994,21.8,21.3,22.1,21.3,21.8,20.9,20.8,22.2,21.5,21.4,21.5,21.1
1995,23,22.8,22.4,22.9,22.5,22.2,21.6,21.8,21.3,21.9,22.2,22.3
1996,22.6,23.6,22.4,22.4,22.6,21.1,23.3,20.3,20.4,21.5,22.4,24
1997,21.8,21.4,21.7,22.5,22.1,22.4,23.3,22.1,20.6,22.7,22.3,22.1
1998,22.3,22.5,23.1,22.8,22.4,21.9,21.6,22.2,22.1,22.1,22.1,22.3
1999,23,21.9,21.6,21.1,21.4,21.8,21.4,20.9,21.3,22,22.3,22.2
2000,21.8,21.8,21.6,21.9,22.6,22.2,21.2,21.7,21.7,22.2,22.7,22.1
2001,21.9,21.3,22.6,22.5,22.5,21.6,22,22.1,22,22.8,23.2,22.2
2002,22.9,22.7,22.4,22.5,22.5,21.8,22.1,22.1,22.5,22.6,22.4,22.2
2003,24,23.5,23.2,23,22.9,22.2,21.9,22.3,21.9,22.5,23,22.2
2004,23.4,22.6,22.9,23,22.2,22.3,21.2,21.8,22.1,23.4,22.9,22.5
2005,23.6,22.6,23.2,22.7,22.7,22.4,21.6,22.2,21.6,22.8,23.4,22.4
2006,22.4,22.4,22.6,22.7,21.9,22.3,21.1,22.3,22.2,23.3,22.5,22.6
2007,22.7,23.7,22.4,22.8,22.8,21.9,22.2,21.7,21.8,22.3,22.4,22.1
2008,22,21.6,22.4,22.5,21.6,22,21.6,22,21.9,22.2,22.5,21.6
2009,21.6,21.6,22,22.5,21,21.9,22.1,22.2,22.4,23.4,23.4,22.1
