1901,21.2,21.5,22.9,23.8,23.8,22.8,22,21.7,22.1,22.7,21.8,21.5
1902,21.1,21.3,22.7,23.5,23.4,22.9,22.5,22.3,22.4,22.8,21.9,21.5
1903,21.6,21.7,23.1,24,23.8,22.9,22.3,21.8,22.1,22.7,21.6,21.4
1904,21,21.6,22.8,23.9,23.9,23,22,21.7,22.1,22.7,21.8,21.5
1905,21.2,21.5,22.9,23.8,23.8,22.8,22.2,21.7,22.1,22.9,22,21.7
1906,21.1,21.8,22.9,23.8,24.1,23.2,22.2,21.9,22.3,22.7,21.6,21
1907,20.9,21.7,23.1,23.9,24,23,22.1,21.7,22.1,22.6,21.6,20.8
1908,21.1,21.3,23.2,24.1,24.5,23.1,22.2,21.7,22.5,23.5,21.4,21
1909,20.8,21.2,22.6,23.3,23.6,22.6,22.2,21.9,22.2,22.6,21.6,21.5
1910,21.1,21.5,23.1,24,24.1,23,22.5,22,22.1,22.7,21.9,21.8
1911,21.3,20.4,22.4,23.3,22.9,23.1,20.5,21,21.2,21.7,21.1,20.1
1912,20.4,21.1,22.3,23,22.7,21.8,20.3,20.3,20.5,21.9,21.8,20
1913,20.1,20.4,21.9,23,23.4,21.8,22,21.7,22.1,22.7,21.8,21.5
1914,21.2,21.5,22.9,23.8,23.8,22.8,22,21.7,22.1,22.7,21.8,21.9
1915,21.2,21.6,22.7,24.3,23.6,22.3,21.5,21.3,21.9,22.5,22,21
1916,20.7,22,22.1,23.1,23.9,22.6,21.5,21.7,22.1,22.7,22.2,21.3
1917,21.4,22.1,22.9,23.3,23.8,22.6,21.7,21.4,21.9,22.6,22.1,21.8
1918,20.8,22.2,22.8,23.3,24,22.6,22,21.7,22.1,22.7,21.8,21.5
1919,21.2,21.5,22.9,23.8,23.8,22.8,22,21.7,22.1,22.7,21.8,21.5
1920,21.2,21.5,22.9,23.8,23.8,22.8,22,21.7,22.1,22.7,21.8,21.5
1921,21.2,21.5,22.9,23.8,23.8,22.8,22,21.7,22.7,23.2,23.1,22.8
1922,22.3,22.6,23.9,24.3,24.6,23.8,21.7,21.5,22.6,23.5,23.3,22.9
1923,21.2,21.5,22.9,23.8,23.8,22.8,22,21.7,22.1,22.7,21.8,21.5
1924,21.8,22.8,23.7,24.6,24.8,23.6,23.7,22.9,23.4,24,23.2,22.6
1925,21.7,21.3,22.9,23.7,24.6,24.3,23.9,23.4,22.9,22.4,21.8,21.2
1926,21.2,21.5,22.3,22.4,24.6,23.9,23.5,23.4,22.9,22.7,22.1,20.5
1927,21.2,21.5,22.9,22,22.4,21.7,22.3,23.2,23.2,23.8,23.7,22.3
1928,21,21.5,24,25.2,24.9,22.6,22.8,22.2,23.2,24.1,23.9,22
1929,21.2,22.9,24,23.8,24.3,22.1,21.2,20.8,21.4,22.6,21.8,22
1930,21.6,21.5,22.7,23.6,22.6,21.6,20.8,20.6,21.3,22,21.6,21.6
1931,21.4,21.7,22.8,23.6,25,23.6,22.7,22.3,22.9,23.5,21.8,21.9
1932,21.2,22.9,22.9,23.8,23.8,22.8,22,21.7,22.1,22.7,21.8,21.5
1933,21,21.8,23.1,24.6,24.3,23.3,22.2,21.9,22.3,23.2,22,21.3
1934,20.5,20.4,22.2,24.3,24.6,23.3,22.3,21.8,22.2,23,22.6,22.1
1935,22,22.4,23.4,23.8,23.6,22,21.3,21,22.1,23.1,22.3,21.4
1936,21,21.6,23,24.1,24.4,22.3,21.1,21.1,21.6,23.4,22.6,21.8
1937,21.4,21.9,23.2,25.1,25.2,23.3,22,22.1,22.9,23.5,22.8,21.5
1938,21,21.3,23.2,23.8,23.8,23,21.9,21.9,22.2,22.9,22,21.3
1939,20.7,21.4,23.2,24.6,25.1,22.8,22.4,22.2,23.1,23.2,22.6,21.9
1940,21.5,22.3,23.5,24.7,24.9,23.4,22.6,22.1,22.7,23.6,22.8,21.6
1941,20.7,21.4,23.3,24.6,25.1,22.8,22.1,22.2,23.1,23.2,22.6,22
1942,20.7,21.3,23.2,24.6,24.6,23.7,22,21.9,22.7,23.2,22.3,21.6
1943,21.1,21.6,23,24.5,25.1,23.1,22.1,22.1,22.3,22.9,22.4,21.8
1944,21.1,21.4,23.2,24.6,24.6,23.4,22.3,22.1,22.9,23.6,22.8,22.7
1945,21.3,21.6,22.7,24.7,24.9,23.1,21.9,21.9,22.5,23.1,22.4,21.6
1946,20.4,20.9,22.9,24.6,24.6,23.3,22.1,21.8,22.9,23.4,22.4,21.4
1947,20.7,20.7,23,24.4,23.8,23,22.2,21.4,21.8,22.4,22.2,21.4
1948,21.4,21.7,22.9,24.5,25.3,23.2,22.3,21.9,22.3,23.3,21.8,21.5
1949,20.2,20.7,22.6,24.5,25.2,22.9,22.1,21.9,22.4,23.1,21.8,21.7
1950,20.7,20.5,23,24.2,24.1,22.1,21.5,21.6,22.2,22.7,21.3,21.3
1951,20.5,20.9,23.5,24.2,24.2,22.8,22.1,21.5,22.7,23.7,23,21.8
1952,20.8,21.2,24.3,24.3,24.5,23,21.9,21.6,22.5,22.7,22.1,21.3
1953,20.5,21.3,22.8,24.2,24.5,22.8,21.9,21.3,21.9,22.7,22.4,21.9
1954,20.7,21.5,22.9,24.2,24.2,22.9,21.4,21,22.3,22.4,22.2,21.2
1955,21.7,20.4,22.2,23.7,24.1,22.8,21.6,21.4,21.9,22.4,21.9,21.7
1956,20.8,20.6,22.7,24,24,22.7,21.3,21.2,22.2,23.6,21.9,21.7
1957,20.6,20.9,22.3,24,23.9,22.6,21.5,21.4,22,22.8,22.4,21.4
1958,21.5,21.7,22.6,24,23.8,22.6,22,21.5,22.5,23,22.1,21.9
1959,21.5,21.5,22.7,23.8,24.5,23.1,21.8,21.3,22.4,23.1,22.4,21.4
1960,21.7,21.2,23.3,23.6,23.7,22.5,21.4,21.1,22.2,22.3,21.9,22
1961,20.9,21.2,22.4,24.2,24.5,22.7,21.7,21.4,22.2,22.6,21.6,21.4
1962,20.6,20.8,23.2,24.5,23.1,22.1,21.7,21.6,22.7,22.6,22.4,21.4
1963,20.9,21.3,22.3,23.4,23.3,21.8,21,20.9,21,21.7,21.6,21.6
1964,20.6,20.7,22.2,23.3,23.2,22.1,20.8,20.4,21.4,21.8,20.4,21.1
1965,20.2,20,21.6,23.5,22.6,21.9,20.9,20.9,22,22.4,21.8,20.9
1966,20.3,22.4,23,23.6,23.5,22.8,22.4,21.9,22.1,22.2,21,20.1
1967,20.2,21.3,23.1,24,23.8,22.6,22.3,21.8,22,22.8,21.9,21
1968,20.2,22,22.3,23.5,23.2,22.6,21.8,21.3,22.2,22.5,21.6,21.4
1969,22,22,23.3,23.8,23.7,23.4,22.4,21.5,22,23,22.7,22.1
1970,22.6,22.4,24.1,24.1,24.2,23.2,22.4,22.3,22.7,23.3,22.3,22.1
1971,21.6,21,22.7,24.4,23.6,22.9,21.8,21.7,21.6,22.1,21.8,21.7
1972,20.9,21.8,22.4,23.9,23.6,22.6,22.1,21.7,22.3,22.8,21.9,21.6
1973,21.1,20.9,22.7,23.9,23.9,22.6,21.8,21.4,21.3,22.8,21.7,21
1974,21.6,20.1,22.5,22.6,23.8,23.2,22.8,21,21.4,22,21.2,21.1
1975,20.6,21,22.3,23.3,24,22.8,22.1,21.2,22.2,22.8,21.3,21.3
1976,21.1,21.9,23.2,23.8,24.2,22.8,22,21.6,21.9,22.7,22.1,21.9
1977,21.7,21.3,22.4,23.2,23.9,23.2,22.3,21.4,22.2,22.5,21.7,21.7
1978,21.6,21.8,22.9,23.8,23.9,23.2,21.9,22,22.5,22.9,22.2,21.9
1979,22,22,23,24.2,24,22.4,21.7,21.3,22.2,23,22,22.1
1980,21.4,21.9,23.4,24.1,24,22.9,22.1,21.6,22.1,22.9,22.8,21.6
1981,21.8,21.5,23.6,24.2,24.2,23.3,22,22.3,22.8,22.6,22.5,21.5
1982,21.9,22.1,22.9,23.8,23.5,23.1,22.3,21.6,22.1,22.3,22.2,21.5
1983,20.7,23,23.6,24.4,23.9,23,22.6,22.9,22.5,23,21.7,21.6
1984,21,20.4,23.2,24.1,23.8,22.7,22.1,22,22.2,22.4,21.6,21.6
1985,21.8,21.1,21.8,24.1,24.4,23.2,22,22.4,22,22.8,22.5,21.5
1986,21.1,22.5,23.4,23.7,24,23.9,23.1,21.9,22.3,23,22.5,21.4
1987,21.7,21.8,23.7,24,24,22.9,22.5,22.6,22.9,23.5,22,22.2
1988,21.9,22.3,23,24.2,24.3,23.2,22.1,21.7,22.1,22.7,21.2,21.2
1989,21.7,21.2,23,23.5,23.3,22.9,22,21.6,22.5,22.8,21.8,22.2
1990,21.5,22,22.7,23.7,24.1,22.9,21.9,21.6,22.4,22.8,22.4,21.6
1991,21.6,21.8,22.8,23.9,23.8,23,22.1,21.7,21.8,22.8,21.6,21.7
1992,20.8,21.5,23.1,24.2,24.2,23.2,22,21.5,21.8,22.5,21.6,21.8
1993,20.9,21,23,23.9,23.6,22.9,22.2,21.8,22.1,22.4,21.9,21.5
1994,21.1,21.5,23,24.4,24,23.1,21.9,21.6,21.8,22.6,21.1,21.2
1995,20.8,21.7,22.7,23.9,24.1,23.3,22.1,21.8,22.4,23,22.2,21.9
1996,21.4,21.8,23.1,24.9,23.4,22.4,21.9,21.8,22.3,22.6,21.7,21.3
1997,21.3,21.3,23.1,23.5,23.8,22.6,22.2,21.9,22.4,22.1,21.4,21.3
1998,21.4,21.7,23.2,24.1,24.2,23.5,22.1,21.6,21.9,23,21.4,21.4
1999,21.2,21.5,22.7,24.1,24.1,22.8,21.9,21.4,22.2,22.2,21.5,21.3
2000,21,21.7,22.8,24.2,23.7,23,22.4,21.6,22.1,22.5,21.8,21.5
2001,21.4,21.6,22.9,24.5,23.7,22.6,22.3,21.2,22.1,23,21.7,21.6
2002,21.1,21.6,23.1,24.2,24.8,22.9,22.5,21.8,22.3,22,22.1,21.9
2003,21.4,22.3,23.2,24.4,24.5,23.3,22,21.8,22.3,22.8,22.1,21.5
2004,21.6,21.6,22.8,24.1,24.7,23.2,22.4,22.3,22,22.1,21.8,21.7
2005,21.4,22.1,23.3,24.3,24.1,21.9,22,22.1,22.4,23,22,21.4
2006,21.1,22.1,23.2,23.8,24.1,23.3,22.1,21.5,22.1,22.9,22,21.3
2007,21.1,22.1,23.6,24.1,24.6,22.8,21.8,21.5,22.1,22.4,22.7,21.3
2008,21.1,20.7,21.6,23.4,24,22.7,22.1,21.6,22.5,23,21.6,21.2
2009,21.3,21.9,23.3,24.6,24.6,23.4,22.3,22.3,23,22.6,22,22.2
