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