1901,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1902,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1903,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1904,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1905,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1906,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1907,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1908,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1909,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1910,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1911,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1912,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1913,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1914,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1915,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1916,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1917,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1918,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1919,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1920,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1921,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1922,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1923,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1924,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1925,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1926,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1927,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1928,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1929,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1930,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1931,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1932,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1933,21.8,22,22.1,22,21.8,21.4,21.2,21.9,22.4,22.5,21.9,21.7
1934,21.7,21.8,21.9,21.9,21.9,21.4,21.2,22,22.3,22.4,21.8,21.6
1935,21.8,21.7,22.1,21.8,21.9,21.5,21.1,21.8,22.5,22.8,21.9,21.7
1936,21.7,22,22,21.9,21.9,21.5,21.2,21.8,22.3,22.6,22.1,21.6
1937,21.8,22.1,22,21.9,21.7,21.4,21.1,21.7,22.5,22.5,22,21.7
1938,21.9,22,22,22.1,21.8,21.4,21.3,21.9,22.5,22.6,22,21.7
1939,21.8,22,22,21.8,21.8,21.3,21.3,22.1,22.4,22.5,21.8,21.7
1940,21.8,22.1,21.8,21.6,22,21.7,21.2,22.2,22.7,22.4,22,21.9
1941,22.6,23.6,22.5,22.6,22.2,21.5,21.4,21.9,22.5,22.9,21.4,21.4
1942,22.4,23,22,21.7,22.1,21.8,20.8,21.6,22.2,22.5,21.8,21.9
1943,22.3,21.6,21.8,22.1,21.9,21.3,21,21.4,21.9,22.6,22.9,22.8
1944,22.4,22.2,21.3,21.8,21.6,22.5,21.2,21.7,22.1,22.8,22.6,22.1
1945,22.3,22.1,23.3,22.8,21.6,20.6,21.4,21.3,22,22.5,22.2,21.3
1946,22.7,23,22.5,21.7,21.8,20.7,20.5,20.6,21.7,22.4,21.3,21.8
1947,21.7,21.9,21.8,21,21.4,21.4,21.1,21.3,22,22.6,22.9,21.7
1948,21.8,22.3,21.5,22.1,22.1,21.2,21,21.5,21.5,22.1,21.5,21.4
1949,22.2,22.5,22.3,23,22,21.2,21,22.1,21.8,22.4,22.9,21.8
1950,21.6,20.8,22.1,21.6,21,20.8,20.6,21,21.3,20.8,21.5,21.7
1951,22.2,22.1,22.2,22,21.8,21.6,21.4,21.8,23.2,22.9,22.3,21.6
1952,22.7,22.5,22.7,22.4,22.2,21.5,21.2,22,22.9,22.6,21.8,22.1
1953,22.3,22.2,22.3,22.5,22.1,21.8,21.4,22.2,22.7,22.7,22.4,22.1
1954,22.5,22.4,22.7,22.2,22.1,21.2,21.2,21.8,22.5,22.6,21.8,21.6
1955,22.2,22,22.1,21.8,21.7,21.5,21.5,22.1,22.5,22.7,22.1,21.5
1956,21.3,21.5,22.2,21.8,21.9,21.5,20.9,22.3,22.2,22.5,21.7,21.4
1957,21.9,21.4,21.9,22.1,22,21.7,21.4,22.2,23,23.1,22.7,22
1958,22.7,21.9,22.7,22.7,22.2,21.7,21.1,22.1,23.1,23,22.7,22.1
1959,22.4,22.4,22.2,22.2,22.3,21.6,21.3,22.1,22.7,22.7,22.1,21.9
1960,22.2,21.7,21.8,21.7,21.7,21.7,20.9,22.2,22.4,22.5,22.4,22.2
1961,22.4,22.2,22.6,22.1,22.7,22.1,21.8,22,22.3,22.5,21.5,21.7
1962,21.5,21.8,22.1,22.4,21.7,21.7,21.3,22.1,22.5,22.5,21.7,21.6
1963,21.1,21.6,21.7,21.5,21.7,21.1,21.2,21.6,22.2,23.1,21.8,21.6
1964,22,22.4,22.4,22,21.7,21.5,20.4,21.6,21.6,21.9,21.9,21.2
1965,21.4,21.8,21.9,21.8,21.7,21.2,20.7,21.6,22.7,22.2,22,21.7
1966,22.4,22.5,22.2,21.6,22.1,21.5,21.6,22.3,22.8,22.6,21.5,21.8
1967,22,22.4,22.7,22.3,21.9,21.3,20.9,21.5,22.1,22.1,21.5,21.8
1968,21.4,21.5,20.9,21.3,21.2,20.8,20.5,21.3,22.1,22.3,21.5,21.6
1969,21.6,21.7,22,22.7,21.8,21.4,21.1,21.7,22.8,23.1,22.1,21.9
1970,22.2,22.5,22.1,21.9,21.7,21.4,20.8,21.6,22.2,22.4,22,21.6
1971,21.5,21.6,21.6,21.6,21.6,20.5,20.8,21.8,21.8,21.9,21.7,21.3
1972,21,21.1,21.9,22.2,22.1,21.5,21.4,22.2,22.8,22.9,21.8,21.9
1973,22.1,22.5,22.1,22.5,22,21.4,21.1,22,22.6,22.8,22.3,21.5
1974,21.5,21.7,21.8,21.9,21.2,21.3,20.9,21.8,21.3,22.4,21.7,21.5
1975,21.7,22.1,22.3,22,21.8,21.3,21.4,21.3,21.8,21.8,21.6,21.4
1976,21.8,21.9,22.2,21.8,21.8,21.5,21.2,21.9,22.4,22.7,22.2,21.9
1977,22.2,22.2,22.2,22.2,22.2,21.3,21.3,22.2,22.7,22.9,21.4,21.6
1978,21.5,22.3,21.5,22,21.6,21.3,21.1,22.2,22.9,22.6,21.8,21.8
1979,22,21.4,21,21.7,21.8,21.1,21.3,22.8,22.4,21.5,22.1,22.5
1980,22,22,22.2,22.5,21.8,20.7,20.7,21.6,22.7,22.6,21.7,21.6
1981,21.9,22.2,22.2,21.6,21.4,21.2,20.4,21.9,22.4,22.3,22.1,21.9
1982,22.1,22.2,22.4,21.9,21.6,21.7,21.4,22.1,22.8,22.1,21.7,22
1983,22.4,22.8,22.7,22.4,22.2,21.9,21.9,22,22.4,23,22.7,20.8
1984,20.6,21.9,22.1,21.1,21.8,21.4,20.8,21.7,22.6,22.3,21.4,21.5
1985,22.3,21.4,21.7,21.3,21.4,21,21.3,21.7,22.4,22.3,21.9,21.8
1986,22.1,22.1,21.9,21.9,21.7,20.9,20.9,22.3,22.3,22.8,22,21.8
1987,22.2,22.2,23,23.2,22.4,21.6,21.7,22.6,23.5,23.1,22.9,22.7
1988,22.6,23,22.7,22.1,22,22.5,21.6,22.1,22.5,22.6,21.7,21.7
1989,19.9,21.3,22,21.5,21.4,21.2,21,21.6,22.4,22.3,22,21.9
1990,21.3,22.4,22.3,22.3,22,21.7,21.3,21.8,22.1,22.7,22.3,21.9
1991,21.5,22.4,22.8,22.2,22.3,22.2,21.3,21.7,22.6,23,22.2,21.8
1992,22.3,22.9,22.9,22.6,21.8,21.9,21.4,21.7,22.7,22.9,21.6,21.6
1993,21,20.6,21.8,22.1,21.9,22.1,21.2,23.1,22.2,22.5,24,22.3
1994,20.6,22.1,21.2,22.1,22.4,21.7,20.8,22.4,22.8,23,22.3,21.9
1995,21.7,22.2,22.3,23.8,22.3,22.3,21.6,23.9,22.6,23.3,24.2,22.5
1996,22.5,22.9,22.2,22.2,22,21.9,22.1,22.3,22.8,23.1,22.3,22.6
1997,23,22.7,21.9,22.6,22.8,22.4,22.1,22,23.9,23.2,22.5,22.6
1998,22.7,22.7,22.6,21.7,22.1,22.1,22.1,21.8,22.5,23.1,23.3,22.6
1999,22.5,23.4,22.3,22.5,21.8,22.8,21.6,22.6,23.1,22.2,22.1,22
2000,22.5,22.5,22.6,23.2,23.7,21.9,21.8,23.6,22.8,22.6,23.2,21.7
2001,22.7,24.2,23.3,23.7,21.8,22.3,22.4,23.7,23.9,23.1,22.3,22.2
2002,22.1,22.6,23.5,23.8,23.7,23,23.9,24,24.3,23.6,23.4,23.4
2003,24.6,23.5,24.1,23.5,23.3,22.7,22.3,22.8,23.9,24.1,24.3,24.3
2004,24.5,23.9,23.4,21.9,22.5,22.4,22.6,23.7,23.2,23.5,22.2,21.9
2005,21.6,24.5,24.1,23.8,22.4,23,21.9,23.2,23.9,23.4,25,24.9
2006,22.8,23.3,23,23,21.8,21.5,22.3,23.6,22.3,24.3,23.9,22.5
2007,23.1,24,23.8,23.1,22.9,21.2,21,22.2,23.8,22.6,22.1,23.2
2008,23.6,24.3,22.5,22.7,23,21.8,21.5,23.2,23.1,22.5,21.4,21.6
2009,22.2,25.5,23,22.9,22.4,22.1,21.8,23.6,23.7,24.1,23.4,24.2
