1901,21.6,21.9,23.1,23.8,23.5,22.5,21.8,21.5,21.9,22.5,22.2,21.9
1902,21.5,21.7,22.9,23.5,23.1,22.6,22.3,22.1,22.2,22.6,22.3,21.9
1903,22,22.1,23.3,24,23.5,22.6,22.1,21.6,21.9,22.5,22,21.8
1904,21.4,22,23,23.9,23.6,22.7,21.8,21.5,21.9,22.5,22.2,21.9
1905,21.6,21.9,23.1,23.8,23.5,22.5,22,21.5,21.9,22.7,22.4,22.1
1906,21.5,22.2,23.1,23.8,23.8,22.9,22,21.7,22.1,22.5,22,21.4
1907,21.3,22.1,23.3,23.9,23.7,22.7,21.9,21.5,21.9,22.4,22,21.2
1908,21.5,21.7,23.4,24.1,24.2,22.8,22,21.5,22.3,23.3,21.8,21.4
1909,21.2,21.6,22.8,23.3,23.3,22.3,22,21.7,22,22.4,22,21.9
1910,21.5,21.9,23.3,24,23.8,22.7,22.3,21.8,21.9,22.5,22.3,22.2
1911,21.7,20.6,22.6,23.2,22.4,22.8,19.9,20.7,20.8,21.3,21.4,20.2
1912,20.6,21.4,22.4,22.8,22.2,21.3,19.7,19.7,19.9,21.5,22.2,20
1913,20.3,20.5,21.9,22.8,23,21.3,21.8,21.5,21.9,22.5,22.2,21.9
1914,21.6,21.9,23.1,23.8,23.5,22.5,21.8,21.5,21.9,22.5,22.2,22.4
1915,21.6,22,22.9,24.4,23.3,21.9,21.2,21,21.6,22.3,22.5,21.2
1916,20.9,22.5,22.2,23,23.6,22.2,21.2,21.5,21.9,22.5,22.7,21.7
1917,21.8,22.6,23.1,23.1,23.5,22.2,21.4,21.1,21.6,22.4,22.6,22.3
1918,21.1,22.7,23,23.2,23.7,22.3,21.8,21.5,21.9,22.5,22.2,21.9
1919,21.6,21.9,23.1,23.8,23.5,22.5,21.8,21.5,21.9,22.5,22.2,21.9
1920,21.6,21.9,23.1,23.8,23.5,22.5,21.8,21.5,21.9,22.5,22.2,21.9
1921,21.6,21.9,23.1,23.8,23.5,22.5,21.8,21.5,22.6,23.2,23.8,23.5
1922,23,23.3,24.3,24.4,24.4,23.7,21.4,21.3,22.5,23.4,24.1,23.7
1923,21.6,21.9,23.1,23.8,23.5,22.5,21.8,21.5,21.9,22.5,22.2,21.9
1924,22.3,23.5,24.1,24.8,24.7,23.5,23.9,23,23.5,24.1,24,23.2
1925,22.2,21.6,23.1,23.7,24.5,24.4,24.1,23.6,22.9,22.1,22.2,21.5
1926,21.6,21.9,22.4,22,24.5,23.8,23.7,23.5,22.9,22.5,22.6,20.7
1927,21.6,21.9,23.1,21.6,21.8,21.2,22.2,23.4,23.3,23.9,24.5,22.8
1928,21.3,21.9,24.4,25.6,24.9,22.3,22.7,22.1,23.2,24.2,24.7,22.5
1929,21.6,23.7,24.5,23.8,24.2,21.7,20.8,20.4,21.1,22.4,22.2,22.5
1930,22.1,21.9,22.8,23.5,22,21,20.3,20.1,20.9,21.7,22,22
1931,21.8,22.2,23,23.6,25,23.4,22.6,22.2,22.8,23.4,22.2,22.4
1932,21.6,23.7,23.1,23.8,23.5,22.5,21.8,21.5,21.9,22.5,22.2,21.9
1933,21.3,22.3,23.3,24.7,24.1,23.1,22.1,21.8,22.2,23.1,22.4,21.7
1934,20.8,20.5,22.3,24.4,24.4,23.2,22.2,21.6,22,22.9,23.2,22.6
1935,22.5,23,23.8,23.8,23.2,21.6,21,20.7,21.9,23,22.9,21.8
1936,21.4,22,23.2,24.2,24.2,21.8,20.7,20.8,21.3,23.3,23.2,22.3
1937,21.9,22.4,23.5,25.4,25.2,23.1,21.8,22,22.8,23.4,23.4,21.9
1938,21.3,21.7,23.5,23.8,23.5,22.8,21.7,21.7,22,22.7,22.5,21.6
1939,21,21.8,23.5,24.7,25.1,22.5,22.3,22.2,23.1,23.2,23.2,22.4
1940,22,22.9,23.8,24.9,24.8,23.2,22.5,22,22.6,23.6,23.4,22
1941,21,21.8,23.6,24.8,25.1,22.5,21.9,22.1,23.1,23.2,23.2,22.5
1942,21,21.7,23.5,24.7,24.4,23.6,21.8,21.7,22.6,23.2,22.9,22.1
1943,21.5,22.1,23.1,24.8,25.1,22.8,22,22,22.2,22.8,22.8,22.2
1944,21.4,21.7,23.6,24.8,24.4,23.2,22.3,22,22.9,23.8,23.5,23.1
1945,21.8,22.1,23,25,24.8,22.8,21.7,21.7,22.3,23.1,23,22.1
1946,20.7,21.2,23.2,24.8,24.5,23,21.9,21.6,22.8,23.3,23,21.8
1947,21,21,23.3,24.5,23.6,22.7,22.1,21.2,21.7,22.3,22.8,21.8
1948,21.9,22,23,24.6,25.2,22.8,22.2,21.8,22.2,23.2,22.3,22
1949,20.6,21,22.8,24.6,25.1,22.7,21.9,21.8,22.3,23.1,22.5,22.1
1950,21.1,21,23.3,24.5,23.9,21.8,21.3,21.3,21.9,22.6,21.8,21.8
1951,20.7,21.2,24,24.4,24.1,22.4,22,21.6,22.9,23.8,23.6,22.2
1952,21.1,21.5,25,24.5,24.6,22.8,22,21.7,22.6,22.8,22.6,21.6
1953,20.8,21.6,23.1,24.2,24.5,22.5,21.7,21.2,21.7,22.7,22.8,22.2
1954,20.7,21.7,23,24.3,24.2,22.6,21.4,21.1,21.9,22.3,22.5,21.4
1955,21.9,20.6,22.6,24,24.2,22.5,21.6,21.4,21.7,22.3,22.4,22.1
1956,21.1,20.8,23.1,24.1,23.9,22.3,21.3,21.5,22,23.2,22.1,21.7
1957,20.8,21,22.5,24.2,23.9,22.5,21.6,21.6,22.1,22.9,23.1,21.8
1958,21.7,22,22.9,24.2,23.9,22.2,22.1,21.6,22.4,22.9,22.6,22.4
1959,22,22.1,23.1,24.1,24.7,23.1,21.7,21.4,22.2,23.1,23,21.8
1960,22.1,21.7,24,23.5,23.3,22.1,21.2,21,22,22.1,22.3,22.3
1961,21.2,21.5,22.6,24.2,24.5,22.5,21.8,21.3,21.9,22.4,21.7,21.7
1962,20.9,21.1,23.8,24.8,22.7,21.9,21.6,21.7,22.6,22.8,22.9,21.8
1963,21,21.5,22.5,23.3,22.8,21.4,20.7,20.6,20.5,21.4,21.8,21.9
1964,20.7,21,22.5,23.2,22.8,21.5,20.4,19.8,20.8,21.4,20.5,21.5
1965,20.2,20.3,21.8,23.6,22.4,21.4,20.5,20.7,21.7,22.3,22.1,21
1966,20.4,22.7,23.4,23.6,23.4,22.4,22.3,21.6,22,21.9,21.4,20.3
1967,20.4,21.5,23.1,24,23.6,22.2,22.2,21.6,21.6,22.7,22.5,21.4
1968,20.3,22.3,22.7,23.3,22.8,22.1,21.4,21.2,21.8,22.2,21.9,21.7
1969,22.3,22.5,23.9,24.1,23.3,23.4,22.2,21.5,22.1,23.3,23.7,22.8
1970,23.4,23.1,24.7,24.3,24.1,22.9,22.2,22.4,22.6,23.5,23,22.8
1971,22.4,21.5,23.2,24.8,23,22.6,21.6,21.7,21.3,21.7,22.2,22
1972,21.2,22.2,22.4,23.8,23.4,22.1,21.8,21.6,22.2,22.8,22.5,21.9
1973,21.4,21.3,23.1,24.1,23.6,22.2,21.4,21.2,20.9,22.8,22.1,21.3
1974,22.4,20.2,22.8,22.6,23.7,23.1,23.1,21.1,21.1,21.9,21.8,21.8
1975,21.1,21.4,22.5,23.3,23.9,22.3,21.8,21,21.7,22.7,21.4,21.6
1976,21.6,22.3,23.5,23.7,23.9,22.4,21.7,21.3,21.6,22.2,22.7,22.5
1977,22.2,21.7,22.6,22.9,23.5,22.8,22,21.1,22.1,22.6,22.4,22.3
1978,22.2,22.6,23.6,23.5,23.4,22.9,22,22.2,22.4,22.8,22.8,22.2
1979,22.6,22.5,23.3,24.1,23.9,21.9,21.3,21,22,22.7,22.3,22.2
1980,21.5,21.9,23.3,23.8,23.4,22.4,21.7,21.3,21.7,22.5,23.2,21.8
1981,22.3,21.7,23.7,24,23.7,23,21.7,22.1,22.6,22.3,22.8,21.7
1982,22.2,22.3,23.1,23.7,23.1,22.4,21.7,21.1,21.4,22,22.6,22
1983,21.3,23.6,23.7,24.6,23.7,22.8,22.5,22.6,22.3,22.9,22.1,22.1
1984,21.6,20.8,23.3,24.2,23.6,22.1,21.8,21.6,22,22.1,21.7,21.7
1985,22.4,21.5,21.7,24,24.2,23.1,21.8,22.3,21.7,22.5,23.1,22
1986,21.6,22.8,23.6,23.4,23.5,23.6,23.3,21.7,22.2,23.1,23.3,21.6
1987,22.1,22.2,23.9,24,23.7,22.5,22.7,22.5,22.8,23.3,22.5,22.7
1988,22.5,22.8,23.3,24.1,23.9,22.6,22.1,21.7,21.9,22.8,21.6,21.7
1989,21.7,21.5,23.3,23.4,23,22.5,22,21.4,22.3,22.7,21.9,22.3
1990,21.7,22.5,23.1,23.5,23.7,22.4,21.6,21.5,22,22.5,22.6,21.7
1991,21.9,22.2,23,23.8,23.5,22.7,21.9,21.4,21.5,23.1,22.1,22.3
1992,20.7,22.3,23.4,24.3,23.9,23,21.7,21.2,21.7,22.3,22,22
1993,21.2,21.5,23.2,24.2,23.7,22.5,21.8,21.4,21.8,21.7,22.3,21.9
1994,21.8,22,23.3,24.4,23.7,22.7,21.8,21.8,21.8,23,21.5,21.9
1995,21.4,22.2,23,24,23.7,23,22,21.6,22,23.3,22.9,22.1
1996,21.8,22.3,23.4,24.6,23.2,22.4,21.8,21.7,21.9,22.5,22.2,21.8
1997,21.7,21.9,23.3,23.3,23.5,22.3,22,22.1,22.3,22.1,21.5,21.5
1998,21.9,22,23.4,24,23.9,23.1,21.8,21.2,21.7,23.1,21.8,22
1999,21.7,21.8,23.5,23.8,23.6,22.3,21.7,21.2,22,22,22,21.8
2000,21.3,22,23.1,24,23.3,22.5,22.4,21.3,21.7,22.1,23.5,21.9
2001,21.8,22,23.4,24.3,23.5,22.2,22,20.8,21.9,22.9,22.2,22
2002,21.6,22,23.5,24.4,24.4,22.9,22,21.7,21.9,22.2,22.4,22.3
2003,21.9,22.5,23.4,24.6,24.3,22.9,21.8,22,22.1,22.7,22.4,22
2004,21.8,22.1,23.2,24.2,23.8,22.9,22.1,22,21.8,21.9,22.2,22.1
2005,21.8,22.4,23.5,24.2,23.8,21.7,21.8,22,22.1,22.8,22.6,21.8
2006,21.7,22.4,23.6,23.9,23.8,23,21.7,21.4,21.9,23.1,22.5,22.5
2007,22,22,23,24.1,23.9,22.8,21.9,21.6,21.9,22.4,22.7,21.7
2008,21.8,22.2,22.1,23.4,23.6,22.8,21.9,21.7,22.3,23,22,21.7
2009,21.9,21.9,23.6,24.6,24.2,23.1,22.1,22.3,22.6,22.5,22.5,22.8
