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