1901,22.4,22.5,23.2,23.1,23.9,23.7,23.3,23.4,22.9,23.1,23,22.6
1902,21,22.2,22.3,23,23.6,23.8,23.1,23.2,22.8,22.9,22.7,22.9
1903,21.9,21.3,23,23.6,23.9,22.9,22.8,22.9,22.6,22.6,21.9,20.6
1904,20.2,20.6,22.1,22.6,23.5,23.3,22.9,23.3,23.1,23.1,22.2,21.6
1905,22.2,22.4,22.7,23.6,23.5,23.3,23,23.5,23.2,23.2,22.9,24
1906,22.7,22.6,22.8,24,24.3,23.6,23.2,23.5,23.4,22.8,22.2,22.4
1907,21.4,21.7,21.9,23,23.3,23.2,22.9,23,23,22.8,22.7,21.2
1908,21.4,21.5,22.2,23,23.5,23.2,22.9,23,23,22.9,21.9,22.1
1909,21.5,21.7,22.3,23,23.4,23.3,22.8,23.2,23,23.1,22.1,21.6
1910,21.9,21.1,21.8,22.9,23.5,23.1,23,23.2,22.7,22.8,22.5,21.4
1911,21.7,22.2,22.8,23.5,24,23.9,23.8,23.7,23.6,23.3,24.2,23.6
1912,22.7,22.7,23.6,24,24.5,23.7,23.3,23.4,23.5,23.3,22.9,23
1913,22.2,22.7,23.5,23.6,24,23.3,23.2,23.7,23.4,23.5,23.2,23.1
1914,22,22.6,23.1,23.8,24.9,23.5,23.4,23.7,23.9,23.8,24,23.7
1915,22.6,23,23.3,23.9,24.4,23.6,23.5,23.7,23.7,23.4,23.3,22.2
1916,21.4,22.2,23.2,23.8,23.9,23.5,23,23.4,23.5,23.4,23,22.4
1917,21.6,21.7,22.3,23.6,23.4,23.4,23.1,23.1,23.1,23,23.1,22.3
1918,20.9,20.4,22.5,22.9,23.3,23.1,23.6,23.6,23.6,23.2,23.7,22.8
1919,22.9,22.8,23.5,23.9,24.4,23.8,23.3,23.9,23.7,23.6,23.2,22.9
1920,21.8,22,23.3,23.7,24.2,23.9,23.5,23.5,23.5,23.2,23.7,22.2
1921,22.1,21.7,22.9,23.5,23.5,23.1,23,23.6,23.3,23,22.7,22.9
1922,22.5,22.1,22.2,22.8,23.6,23.4,23,23.1,23.6,23.2,23.2,22.7
1923,21.8,21.6,22.6,23.3,23.6,23.5,22.6,23,22.8,23.2,23.3,23.2
1924,22.8,22.3,23,23.4,23.8,23.5,23,23.7,22.6,22.4,23.1,21.9
1925,21.7,21.1,22.3,23,23.8,23.5,23.4,23.3,23.2,22.9,22.9,22
1926,21.9,21.9,22.6,24.2,24.7,23.9,23.2,23.3,23.1,22.9,22.9,22.9
1927,22,21.8,23,23,23.2,23.2,23.2,23.3,23.3,22.8,22.9,22.8
1928,22.5,22.2,22.6,22.8,23.8,23.3,23.1,23.2,23.1,22.8,22.8,23.3
1929,21.9,21.5,21.8,22.9,23.8,22.8,23.3,23.4,23.4,22.6,22.6,22.9
1930,21.1,21.1,22,22.8,23.7,23.1,23.7,24,23.6,23.4,23.3,22.8
1931,22.8,21.3,22.4,24,24.1,24,23.7,24.5,23.7,23.4,22.4,22
1932,21,21.3,21.8,23.2,23.6,23.4,23.6,23.7,23.4,23.7,23.4,22
1933,22.4,21.1,22.3,23.6,23.8,23.4,23.6,24.1,23.1,23.4,22.5,21.7
1934,21.3,21.3,22,22.9,24.5,23.5,23.7,23.9,23.9,23.3,23.1,22
1935,21.8,21.3,23.3,23.4,23.9,23.5,23.8,23.8,23.6,23.7,23.3,22.5
1936,22.4,22.2,22.2,23.7,24.5,23.4,23.6,23.6,23.6,22.9,22.9,23
1937,22.2,21.5,23.1,23.9,23.5,23.3,23.2,23.7,23.4,22.9,23,22.7
1938,22.2,22.7,23.1,23.7,23.7,23.5,23.1,23.7,23.6,23.3,22.7,22.5
1939,23.9,21.3,22.3,23.6,24.2,23.1,23.4,23.9,23.2,22.9,23.1,21.4
1940,20.2,21.4,22.1,23.1,23.8,24,23.2,23.2,23.7,23.4,23.3,22.7
1941,22.6,22.8,22.8,24.6,24.2,23.8,23.3,24,23.6,23.8,23.6,23
1942,20.8,22,22.8,23.5,23.8,23.2,22.9,22.8,23,22.7,22.1,22.2
1943,20.7,20.5,22.2,22,23.1,22.5,22.2,22.1,22.3,22.7,22.2,21.8
1944,21.6,21.6,22.1,23,23.2,22.8,22.7,23,23.1,23,22.2,21.7
1945,21.7,22,22.3,22.6,23.3,23.1,22.9,23,22.7,22.7,22.7,22.4
1946,21.6,21.7,22.7,22.8,23.4,23,22.4,22.7,22.7,22.6,22.3,22.9
1947,22.5,22.1,23.1,23.4,23.7,23.1,22.5,22.9,22.6,22.9,22.2,22.2
1948,22.9,22.3,23.5,24,24.2,24.3,23.6,24.3,23.8,23.8,23,22.4
1949,21.1,22.6,23.3,23.8,24.4,23.8,23.7,24,23.3,23.8,23.2,23.1
1950,22.6,22.7,23.3,23.6,24.2,23.7,23.1,23.6,23,23.5,23.5,22.2
1951,21.2,20.9,21.7,22.9,23.2,23,22.3,22.8,22.7,22.7,22.5,22.2
1952,21.6,21.5,22.5,23.1,23.6,23.2,22.6,22.6,22.4,22.8,21.6,20.3
1953,20.9,21.3,21.6,22.7,23.3,22.9,22.2,22.8,22.7,22.5,22.2,21.4
1954,21.6,21,22.1,22.9,23.2,22.9,22.2,22.8,22.8,22.2,21.6,21.5
1955,21.7,20.8,21.2,22.2,23.3,22.7,22.1,22.5,22.4,22.6,22,20.8
1956,20.4,20.6,21.6,22.9,22.8,22.4,22.4,22.6,22.8,22.5,22,21.2
1957,20.6,20.9,21.8,23.1,23.5,23.4,22.8,22.9,23.1,22.8,22.5,22.5
1958,21.8,21.5,21.9,22.5,23.8,23.4,22.7,22.8,23.3,22.8,22,21.4
1959,21.6,21.5,22.1,22.7,23.3,23.3,22.7,22.6,22.7,22.7,22.5,22.3
1960,22,21.8,21.9,23,23.4,23,22.7,23.4,22.9,22.9,22.4,22.2
1961,21.7,21.9,22.8,22.7,23.6,22.8,22.2,22.8,22.5,22.3,22.2,22.2
1962,22.2,21.4,22.3,22.5,23.7,22.8,22.7,22.3,23.1,22.8,22.6,21.9
1963,21.3,21,21.6,21.8,22.8,23.1,22.8,22.9,23.1,22.9,22.6,22.3
1964,22,22.4,21.7,22.7,23.7,22.8,22.8,22.7,23.1,22.6,22.2,21.6
1965,20,21.6,22.1,22.7,23.3,23.1,22.4,22.6,22.8,22.7,22.7,22.4
1966,22.3,22.2,22.6,23.4,23.6,23,22.7,22.9,22.4,22.6,22.4,22.1
1967,21.8,21.6,21.5,22.3,23.3,23,22.7,22.8,22.9,22.7,22.5,21.9
1968,20.9,20.3,22,22.5,23.2,23.1,23.1,23.3,23,22.6,22.6,22.2
1969,22,21.8,22.3,23.3,23.9,23.4,23.2,22.9,23,22.8,22.7,22.2
1970,22.1,21.5,22.2,23.5,23.6,23.5,22.6,22.9,22.7,22.8,22.3,22
1971,21.6,21.2,22.3,22.4,23.2,23,22.6,22.4,22.7,22.7,22.1,22.3
1972,20.9,21.4,21.9,22.5,23.4,23.1,23.2,22.9,23,22.9,22.8,22.9
1973,22.2,22.3,22.4,23.5,23.3,23.6,22.9,23,22.9,23,22.6,22
1974,20.5,21.7,21.8,22.9,22.9,23.2,22.6,23.1,22.5,23,22.6,21.5
1975,22.1,21.9,22.3,23.2,23.2,23.1,22.2,23,22.6,22.6,22.3,21.6
1976,20.6,20.5,22,22.7,23.4,22.8,22.8,22.6,22.4,22.9,22.4,22.1
1977,21.3,21.9,21.9,22.7,23.3,23.5,23.5,23,23.4,23,22.7,22.4
1978,22.1,22,22.7,23.2,24,23.5,23.1,23.6,22.8,23,22.2,22.3
1979,21.5,22,22.6,23.8,24,23.8,23,23.4,22.8,22.8,22.8,21.9
1980,21.5,21.6,23.1,23.6,24,23.7,23,22.7,22.9,23.2,22.7,22.2
1981,20.9,21.5,22.3,23.4,23.3,23.2,22.6,23,22.8,22.7,22.5,22.2
1982,21.4,21.3,22,23.1,23.4,23.3,22.6,22.8,22.7,22.2,22.3,22.6
1983,22.1,21.6,22.7,23.1,23.7,23.5,22.9,22.8,22.4,22.6,22.1,21.6
1984,21.1,21.4,21.8,22.6,23.3,22.8,22.2,23,22.5,22.6,22.4,22.2
1985,21.5,22.3,22.5,23.4,23.2,22.8,22,22.7,22.4,22.7,22.1,21.7
1986,21.3,21.4,22.7,23.3,23.8,23.4,23.1,23.4,23,23,22.6,22.7
1987,22.4,21.2,23.2,23.2,23.7,24.1,23.7,23.1,23.3,23.4,23.2,22.7
1988,22.7,22.8,23.4,23.9,24.3,23.4,22.9,23.2,23.3,23.5,23.2,21.9
1989,22.3,20.8,22.3,23.5,23.9,23.1,23.3,23.1,23.2,23.1,23.2,22.3
1990,21.8,22.7,22.7,24.2,24.2,24.3,23.1,23.4,23.1,22.8,23,22.7
1991,22.6,22.2,22.5,22.8,23.8,23.8,23.5,23.2,23.5,22.7,22.8,22.5
1992,22,22.4,22.8,23.9,24.1,23.4,22.9,23.1,23.1,22.4,22.1,22.2
1993,22.1,21.1,22.5,22.9,23.2,23.6,23.4,23.6,22.4,22.7,22.6,22.6
1994,21.9,22.1,23,23.4,24.3,23.5,23.4,22.4,22.9,22.8,23,22.6
1995,22.5,22,22.9,23.7,23.7,24.1,23.3,23.1,23.3,23.2,22.7,21.9
1996,21.8,22.3,23.3,23.7,24,24.3,23.7,23.4,23.4,22.8,22.9,22.1
1997,21.9,22.4,23.1,23.4,24.3,23.7,23.5,23.4,23.6,23.4,23.1,23.4
1998,23.7,23.6,24,24,25.5,24.7,24,23.5,23.7,23.4,23,22.5
1999,22.2,22.5,23.1,22.9,24,23.6,23.5,23,23.3,23,22.9,21.9
2000,22.7,22.2,23,23.4,23.7,23.1,23.4,23.7,23.2,23.5,23.4,23
2001,22.5,22.6,22.9,23.9,24.4,23.9,23.6,23.8,23.5,23.4,23.5,23.2
2002,22.6,22.8,23.8,23.8,25,24.5,24.2,23.5,23.5,23.3,23.8,23.9
2003,23.2,23.2,23.4,24.5,24.9,24.2,23.8,24.1,23.5,23,23,23
2004,22.9,22.8,23.8,24.5,24.5,24.7,23.9,23.5,23.8,23.4,23.8,23.1
2005,22.6,22.7,23.9,24.6,24.5,24.3,23.8,23.7,23.4,23.2,22.9,22.5
2006,22.3,23.1,23.6,23.4,23.7,23.4,24,23.8,23.3,23.2,23.3,23.3
2007,22.9,22.5,23,24,24.1,23.2,23.7,23.6,23.3,23,23,22.9
2008,22.9,22.1,23,23.6,23.6,23.6,23.7,23.5,23.3,23.4,23.3,22.9
2009,22,22.2,22.8,23.6,23.8,24.2,23.7,23.5,23.9,23.3,23.5,23.5
