1901,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1902,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1903,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1904,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1905,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1906,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1907,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1908,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1909,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1910,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1911,23,22.9,22.7,22.6,21.4,19.6,18.7,18.6,18.5,19.9,21.3,22.6
1912,22.9,23,22.7,22.5,21.4,19.5,18.7,18.5,18.5,19.9,21.3,22.6
1913,22.9,22.9,22.6,22.5,21.5,19.5,18.8,18.6,18.6,20,21.3,22.7
1914,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1915,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1916,23,23,22.6,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1917,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1918,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1919,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1920,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1921,23,23,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.4,22.8
1922,23.1,23.1,22.8,22.6,21.6,19.7,18.8,18.6,18.6,20.1,21.4,22.8
1923,23,22.9,22.7,22.5,21.5,19.5,18.8,18.5,18.5,19.8,21.2,22.6
1924,23,23.1,22.8,22.7,21.6,19.8,18.8,18.8,18.7,20.1,21.4,22.8
1925,23,23,22.7,22.6,21.6,19.7,18.9,18.7,18.7,20,21.3,22.7
1926,22.9,23,22.7,22.5,21.5,19.7,18.9,18.7,18.8,19.9,21.3,22.5
1927,22.9,22.9,22.7,22.4,21.3,19.5,18.7,18.7,18.6,20.1,21.2,22.7
1928,22.9,23,22.8,22.7,21.6,19.6,18.9,18.7,18.7,20,21.3,22.6
1929,22.9,23,22.7,22.5,21.4,19.5,18.7,18.4,18.5,20,21.3,22.5
1930,23,23,22.8,22.6,21.4,19.5,18.7,18.4,18.5,19.9,21.2,22.7
1931,23,23,22.7,22.6,21.6,19.7,18.9,18.7,18.7,20.1,21.3,22.7
1932,23,23.1,22.7,22.6,21.5,19.6,18.8,18.6,18.6,20,21.3,22.7
1933,23.1,23.2,22.9,22.8,21.6,19.9,19,18.8,18.7,20.1,21.2,22.7
1934,22.6,22.2,22.2,22.8,22.4,19.7,19,19.1,18.5,20.3,21.8,22.9
1935,23.4,23.2,22.9,22.1,21.8,19,18.2,17.6,18.8,20.7,21.5,22.6
1936,23.1,23.5,22.9,22.8,22.3,19.5,18.6,18,18.2,20.7,22.2,22.8
1937,23.3,23.7,22.9,23.6,22.2,19.9,18.8,18.7,19.3,20.6,22.4,22.7
1938,22.9,23.1,22.9,22.7,21.4,19.9,19.2,18.7,18.9,20.6,21.8,22.6
1939,22.6,23.6,22.7,22.8,22.4,19.4,18.9,19,18.7,20.4,21.7,22.6
1940,23.4,23.4,23,21.9,22,20.2,18.8,18.8,19,19.6,21.7,23.2
1941,23.4,23.5,23.2,23.2,22.1,19.3,18.5,18.9,19.3,20.3,22.4,23.8
1942,23.9,24.2,24,23.5,22.3,20.3,18.7,19.1,18.6,20,21.7,23.3
1943,23.2,23.3,23.2,23.5,22.4,19.6,18,18.4,18.1,19.4,21.8,23.5
1944,22.7,23.6,23.4,23.4,22.3,20.3,19.1,18.6,19.3,20.6,22.8,23.6
1945,23.7,23.6,23.5,23.8,22.6,18.9,18.6,18.7,18.2,20.9,21.8,23.6
1946,23.3,23.4,23.3,23.4,22.5,20,18.6,18.4,18.2,20.1,22,23.8
1947,24.3,23.8,23.5,23.2,21.5,19.5,19,18.3,18.8,19.9,21.5,22.8
1948,23.1,22.9,23,23.2,22.7,20.4,19.1,19.2,19,20.3,21.3,22.6
1949,22.8,22.5,22.6,23.1,22.1,20,19.5,19.5,19.3,20.6,21.8,22.9
1950,22.6,22.7,22.9,23,21.1,19.5,18.9,18.6,18.5,19.7,21,22.7
1951,23.1,23.2,22.7,22.4,21.4,20.1,18.6,18.8,19.4,20.8,21.7,23.2
1952,23.9,23.7,23.8,23.1,22,20.2,19.1,18.8,19.1,20.1,21.9,23.1
1953,24.1,23.5,22.9,22.9,21.8,19.9,19,18.7,18.6,20.3,21.4,23.2
1954,23.1,23.6,23.1,22.8,21.9,19.9,19.1,19.1,19.5,19.6,21.4,23.1
1955,23.6,23,22.9,22.3,21.1,19.4,18.8,18.2,18.6,19.6,21.3,23.2
1956,22,22.8,22.8,22.3,21.4,19.2,17.8,18.5,17.8,19.4,21.5,22.7
1957,23.2,22.8,22.8,23.3,21.9,19.4,18.9,19,18.9,20.8,21.4,23.2
1958,23.4,23.7,23.8,23.4,21.5,20.2,18.8,19.4,19.2,20.1,22.4,22.9
1959,23.5,23.7,23.9,22.6,20.8,20,18.8,18.6,18.7,20.3,22,23.4
1960,22.1,22.1,22.7,22.5,21.2,19.9,18.3,17.8,18.6,20.1,20.4,23.1
1961,23.6,23.9,23.1,22.9,22.1,20.3,20,19.2,19.3,21,22,23.4
1962,23.6,22.3,21.8,21.9,20.3,19.4,18.6,19.2,18.2,19.8,21.9,23.1
1963,22.9,22.9,23.1,22.7,21,19.8,19.6,18.4,18.2,20.2,22.3,22.7
1964,23.9,23.5,23.6,23.2,20.9,19.4,17.8,18.1,17.7,18.9,20.6,21.9
1965,22.2,22.5,22.6,22.3,20.5,18.3,18.1,18.4,18.9,20.8,21.6,22.8
1966,23.1,23.9,22.9,22.9,21.9,20.2,19.6,19,19.4,20.6,21.1,22.9
1967,23.8,23.3,23.3,22.7,22.1,20.1,19.8,19.7,19.6,20,22.3,21.5
1968,22.8,22.6,22.9,22.7,21.4,19.3,18.6,18.2,18.3,20.5,21.4,23.3
1969,22.4,23.4,22.8,23.1,21.9,19.7,19.5,18.9,18.8,19.8,21.7,22.5
1970,22.9,23.6,22.7,22.6,21.6,19.7,19.4,19.2,19.1,19.6,21.3,23.1
1971,23,22.5,22.2,22.2,20.9,19.2,18.5,17,18,19.1,20.7,22.8
1972,22.7,23.1,22.7,22.7,22.4,19.2,19,18.5,19.3,21,21.7,23.3
1973,23.7,23.6,23.9,22.9,21.7,20.1,18.5,18.3,18.2,20.1,21.2,22.1
1974,21.7,22.5,22.2,22.6,21,19.9,19.3,18.3,18.7,19.5,21.4,22.2
1975,22.7,22.8,22.8,22.1,21.9,20.5,18.7,18.1,19.3,19.1,20.5,22.9
1976,22.4,22.1,22.3,22.6,21.6,19.7,18.4,18.4,19.2,20.4,20.8,23.1
1977,22.9,23.4,21.1,22.8,21.2,17.7,17.7,18.6,18.6,19.4,20.9,21.9
1978,22.6,22.8,22.1,22.3,20.8,20,18.3,18.6,18.6,19.9,21.4,22.2
1979,22.5,23.1,22.1,22.1,21.2,19.1,18,18.7,18.3,19.4,21.5,23.3
1980,23.3,22.9,22.8,22.4,21.9,18.2,18.5,18.5,18.4,19.1,21.3,23
1981,23.1,23.5,22.9,21.5,20.4,18.7,17.1,18.2,17.9,19.5,20.5,22.4
1982,22.3,22.5,21.3,21.8,20.9,19.8,19,18.6,18,20.5,21.1,22.7
1983,23.4,23.7,22.8,23.3,22,21.2,19.1,18.7,18.2,19.7,20.8,22.3
1984,23.2,22.3,22.2,22.9,21.6,19.8,18.4,18.2,17.9,19.7,21.3,22.6
1985,23.1,23.4,22.1,22.3,21.1,19.1,18.8,18.3,18.2,19.5,21.1,22.7
1986,22.9,22.2,22.7,22.6,21.8,19.7,17.7,17.9,18.4,20.8,22.1,22.6
1987,24,23.2,23.1,22.9,22.3,19.6,18,20,18.9,20.8,21.3,23.5
1988,24.1,23.6,23.8,22.6,21.1,21.1,19.4,19.9,19.8,20.4,21.9,22.7
1989,23.2,23,23,22.7,21.6,19.7,18.9,18.8,18.8,20,21,23
1990,23.2,24.3,23.3,23.1,22.1,19.7,18.9,18.9,19.6,20.5,22.5,23.3
1991,23.5,24.2,23.4,22.6,22.2,19.8,19.4,18.7,18.7,20.7,22,23.3
1992,24,24.5,23.3,23.3,22,20.9,19.1,18.2,18.7,19.8,21.9,23.5
1993,23.4,23,23,22.8,22.4,20,18.1,18.3,18.4,19.8,21.7,22.8
1994,24.6,23.6,23.8,22.7,21.7,19.7,19.6,19.2,19.5,21.6,22,23.3
1995,24.3,23.6,23.4,23.1,22.1,19.4,19.4,19.4,19,20.7,20.8,23
1996,24.3,23.8,23,22.8,22.2,20.4,18.7,17.9,18.4,19.6,20.9,23.4
1997,24.3,23.3,23.9,23.2,21.7,21.3,19.5,18.8,18.8,21.1,23.1,23.5
1998,23.6,24.7,24.2,24.1,21.4,20.9,19.2,19.5,20.3,19.8,21.3,23.6
1999,24.2,23.4,23,22.8,21.8,20.2,19.3,18.9,19,19.5,21.6,23.2
2000,24.1,22.5,23.3,22.5,21.3,19.6,19.1,18.4,18.3,20,22.6,23.1
2001,23.1,23.2,23.4,22.5,22.1,20.1,19.2,18.8,18.8,20.5,22.1,23.3
2002,23.9,23.4,22.9,22.5,21.8,20.3,19.8,19.6,19.3,21.1,22,23.6
2003,24.2,23.7,23.7,23.6,23.2,21.5,19.1,19.2,19.1,21.5,22,22.8
2004,25,24.1,23.5,22.8,22.3,19.6,19.3,19.3,19,19.6,21.3,22.5
2005,23.3,23.8,23.3,22.8,21.9,20.4,18.9,18.2,19.1,19.8,21.7,23.4
2006,24,23.8,23.5,22.3,21.2,20.2,18.5,19.1,19.3,20.9,22.9,23.9
2007,24.4,23.7,23.3,22.5,22,19.9,18.8,19.2,19.4,20.6,22.2,23.4
2008,23.8,24.3,22.4,23.2,20.6,18.9,18.4,18.9,18.9,21.2,23.1,23.4
2009,23.9,24,23.2,23.3,21.7,20.9,19.2,19,19.3,20.9,22.6,24.6
