1901,21,23.3,23.2,23.4,23.4,22.8,22.4,22.4,22.5,22.8,23,22.3
1902,22.6,22.8,23.8,24,23.4,22.8,22.4,22.7,22.5,22.8,23,22.3
1903,22.2,23.6,24.3,23.8,23.3,22.6,22.4,22.4,22.4,22.6,23,22.5
1904,22,23.4,24,23.7,23.3,22.9,22.4,22.3,22.6,22.8,23.1,22.4
1905,21.5,22.5,23.7,23.9,23.6,22.2,22.4,22.3,22.4,22.7,23.5,22.9
1906,20.9,23.8,24.6,25.5,23.2,22.9,22.2,22.2,23,23.1,23.3,23.1
1907,21.9,22.6,23.7,23.7,24.1,22.6,22.5,22.6,22.6,23.5,22.8,21.5
1908,21.8,23,23.8,24.3,24,22.6,22.5,21.6,22.5,22.7,22.4,21.5
1909,21.6,23.9,25.2,24,23.1,22.3,21.7,22,22.5,22.2,22.8,22
1910,20.5,23.6,23.4,23.3,23.4,24,22.8,22.5,22.8,22.5,23,22.3
1911,21.5,23.2,24.4,24,23.4,22.4,22.5,22.3,22.5,22.8,23.1,21.8
1912,22.7,24.1,24.6,24.9,24,23.5,22.7,22.9,22.9,22.7,22.8,22.3
1913,22.5,23.6,22.9,23.4,23.6,23.4,23.2,23.4,23.6,22.8,23,22.3
1914,23.5,23.3,23.8,23.9,24.3,23.6,23.1,22.7,23.1,23.2,24.1,22.4
1915,22.1,23.6,24.3,23.9,23.4,22.8,22.4,22.4,22.6,23,23.1,22.5
1916,21.8,23.4,24.3,24.1,23.4,22.8,22.5,22.4,22.5,22.8,23,22.1
1917,22.1,23.6,24.3,23.9,23.2,22.6,22.4,22.4,22.3,22.7,22.9,22.1
1918,21.7,24,24.3,23.9,23.5,22.8,22.4,22.2,22.3,22.8,23,22.3
1919,22.1,23.7,24.2,23.9,23.4,22.6,22.3,22.4,22.4,22.6,23.2,22.3
1920,21.9,23.6,24.1,23.9,23.4,22.8,22.3,22.4,22.5,22.8,22.9,22.3
1921,22.4,23.6,24.2,23.8,23.3,22.6,22.3,22.3,22.4,22.8,23,22
1922,22,23.7,24.4,24,23.5,22.8,22.5,22.3,22.5,22.6,22.8,22.1
1923,22.2,22.9,23.7,22.7,22.7,22.5,21.8,21.8,22.4,22.8,22.6,22.4
1924,21.1,23.1,23.9,23.4,23.3,22.5,21.9,21.8,21.5,22.2,22.2,21.9
1925,20.3,23,23.6,23.5,22.5,22,21.8,21.8,22,22.3,22.8,21.7
1926,22,23.4,23.9,23.4,22.9,22,21.8,22.6,23.2,22.4,22.6,22.7
1927,21,23.3,23.3,23.6,22.7,22.7,21.8,21.8,22,21.9,22.6,22.4
1928,21.3,23,23.3,22.5,22.5,22.2,22,21.4,22.2,22.3,22.7,21.9
1929,21.3,22.3,22.8,22.3,22.9,22.8,23,21.5,22,21.8,21.5,20.9
1930,21.9,24.2,23.9,23.8,23.4,22.4,22.6,22.4,22.9,21.7,24.2,23.5
1931,22.8,24.1,23.7,24.6,23.3,22.6,22.9,22.3,22,22.8,23.4,23.1
1932,21.6,23.7,24.8,24.7,23.4,22.3,22.3,23.2,23,23.4,24,23.4
1933,23.4,24.3,25.1,24.2,22.6,22.7,22.3,22.2,22.8,22.6,23.4,22.5
1934,21.7,23.4,24.2,23.8,23.1,22.4,21.9,22,21.9,22.4,24.2,22.9
1935,22.2,24,25.5,24.5,22.9,21.9,21.9,21.9,21.7,22,22.5,21.8
1936,21.3,23,25.5,23,22.4,22.2,21.8,21.6,21.8,22.1,22.3,21.5
1937,21.6,23.6,24.8,24.3,24,23.4,22.7,22.1,22.6,23.7,24,23
1938,22.8,24.2,24.2,24.7,24.5,23.7,22.9,22.4,22.9,23.4,24.5,21.9
1939,22.9,24.1,25.3,22.9,23.5,23.2,22.7,22.3,22.5,23.1,23.5,23.3
1940,22.1,23.6,24.1,23.8,23.3,22.7,22.4,22.3,22.5,22.8,23,22.1
1941,23.6,23.4,25.2,24.6,25.2,23.6,22.9,22.6,23,24.2,24.4,23.5
1942,22.2,24.5,24.7,24.5,23.6,23.8,22.6,22.1,23,23.2,23.9,22.5
1943,21.8,23.4,24.4,23.9,22.8,21.8,22.3,22.4,22.5,23,24,23.3
1944,21.8,23.2,24.7,23.4,24.5,23.1,22.8,22.2,23.1,23.2,23,23
1945,22.7,22.9,23.9,23.7,23.7,23.2,22.8,22,23.1,22.7,23,21.4
1946,22.8,23.5,24.7,24.5,23.2,22.6,22.3,22.1,22.1,21.3,23.1,21.8
1947,21.6,25.4,23.8,24.3,24.6,23.9,22.8,22.9,22.7,23,22.7,22.5
1948,21.3,24.1,23.6,23.3,22.9,22.1,22.2,22.4,22.9,22.9,23.1,22.6
1949,22.3,23.2,25,24.3,24.5,23.4,22.8,22.4,23.1,23.7,23.9,22
1950,22.7,22.5,23.5,23.9,23.8,23.8,22,21.9,22.7,22.4,22.7,22.3
1951,21.9,22.9,23.7,24,23,23.5,22.5,22.6,23.1,23.1,23.2,23.5
1952,22.2,23.4,23.5,23.7,23.1,23,22.3,22.3,22.3,22.6,22.4,22.1
1953,22.1,22.7,23.2,24.3,23,22.4,22.2,22,22.3,22.3,22.6,21.8
1954,21.4,22.7,23,23.4,23,22.5,21.9,21.7,22.2,22.2,22.7,22.5
1955,21,23.4,23,23.3,22.8,22.1,22,22.1,22.2,22.3,22.6,21.7
1956,21.4,22.8,23.3,23.8,23.1,22.3,21.7,21.8,22.1,22.6,22.4,22.2
1957,21,22.8,23.5,23.7,23.3,22.7,22.7,22.7,22.5,22.5,22.3,22.4
1958,22.1,23,24.1,24.2,22.8,22.5,22,22.6,22.3,22.3,22.4,22.6
1959,21.8,23,23.5,24,22.8,22.7,22.6,22.9,22.2,22.5,22.4,22.6
1960,21.8,23.3,23.5,23.1,23.1,22.8,22.7,22.9,22.3,22.4,22.3,23
1961,22.7,22.2,24.4,23.5,23.1,22.7,22.1,21.3,21.6,22.5,23.1,21.6
1962,21.3,23.2,24,23.7,23,22.3,22.7,21.8,22,22.7,22.5,22.9
1963,22.5,23.7,23,23.9,23.9,23.2,22.8,23,23.1,22.8,22.6,23.1
1964,22.5,23.5,24.2,24.1,23,22,21.7,21.8,21.8,21.5,22.3,22.4
1965,22.7,22.8,23.7,23.6,22.8,22.7,22.5,22.2,22,22.6,23.5,22.6
1966,22.6,22.7,24.2,24.4,23,22.8,23.2,23,22.7,22.1,22.6,22.7
1967,20.5,23.7,24.1,24.1,22.5,22.9,22.4,21.8,21.7,22.1,23.2,23.6
1968,21.8,23.6,24.4,23.8,23.4,22.5,22.2,22.8,22.5,22.8,22.7,23.3
1969,22.1,24.4,24.7,24.8,24.4,23.3,22,23.6,22.6,22.2,22.6,24
1970,23.3,24.8,24.2,24.6,23.8,23,22.2,22.4,22.6,23.4,23.1,21.3
1971,21.3,22.8,23.6,23.4,22.7,22.2,22.1,21.6,21.9,21.9,22,20.9
1972,21.9,23.3,23.2,22.6,23.1,22.1,22.4,21.8,22.5,22.7,22.5,22.5
1973,23.1,24.7,24.5,23.4,22.6,22.9,22.4,22.3,22.1,22.3,21.9,22.9
1974,21.4,22.8,23.8,23,22.8,22.3,21.6,22.2,21.6,22.3,22.5,20.8
1975,20.4,22.6,24,23.4,23,22.5,21.8,21.5,22.2,22.1,22.5,21.1
1976,21.6,22.6,23.6,23.3,23.1,22.4,22,21.8,22.3,22.9,22.1,22.5
1977,22.7,24,24.7,24.6,23.6,22.8,23,21.9,22.6,22.8,22.8,21.6
1978,21.4,24.5,23.6,23.1,22.9,22.3,21.7,21.5,22.1,22.3,22.2,22.3
1979,23.1,24.2,24.2,24.3,22.9,22.8,22.6,22.3,22.8,22.9,23.1,21.9
1980,22.9,23.8,24,24.2,22.9,23.7,22.5,22.3,22,22.7,22.2,21.1
1981,21.9,23.8,24.5,24.3,23.6,22.9,22.3,22.5,22.5,23.4,22.3,23
1982,22.5,22.9,24.7,24.1,24.1,23.3,21.8,22.5,22.7,22.6,22.5,22.1
1983,19,23.8,25.5,25.3,23.9,23,22,22.5,23.2,23.8,24,23
1984,22.4,23.4,24.7,24.1,23.5,22.7,22.7,22.8,22.1,22.7,23.3,21.9
1985,23.7,23.3,24.7,24.1,23.8,23.1,22.2,22.7,22.3,22.8,23.9,21.1
1986,22.7,24.3,24.2,24.5,23.5,22.8,21.7,21.8,22.8,22.5,23.5,21
1987,23.4,24.6,24.7,25.3,24.2,23.2,22.8,23.6,23.6,23,24.2,22.4
1988,22.8,24.5,24.8,24.2,23.9,22.6,22.8,22.4,22.9,23.6,23.9,22.4
1989,19.5,22.7,24.3,24.3,23.7,23.6,22.3,23.1,22.6,22.9,23.6,22.4
1990,23.6,23.6,24.7,23.5,23.9,23.6,23,22.8,22.7,23.5,24.3,23.8
1991,23.1,24.6,25.1,24.2,23.6,23.1,22.5,22.8,22.7,22.2,23.3,21.4
1992,19.6,22.6,24.3,24.6,23.2,22.5,22,22.4,22.4,22,22.2,22.3
1993,20.6,22.4,23.2,23.7,23.7,22.8,21.8,22.4,22,22.9,23.2,22.6
1994,22.6,23.9,24.2,24.2,23.4,22.5,22.1,23,22.1,22.1,22.2,22.1
1995,21.1,22.7,23.8,24.5,23.7,23.1,22.8,23.1,22.5,22.7,21.9,22.7
1996,23.5,24.1,24.4,23.8,22.3,22.8,22.3,22.5,22.3,22.8,22.9,22.5
1997,22.9,22,24.1,23.2,22.6,22.6,21.2,22.2,22.6,22.7,23.8,23.1
1998,21.6,24,25.1,25.1,24,23.4,22.8,21.6,22.7,23.2,23.2,23
1999,22.7,24.4,24.1,23.6,23,22.8,22.2,22.2,22.4,22.5,23.3,22.6
2000,22.4,23.7,24.3,23.7,23.6,22.8,22.3,22.7,22,22.7,23.3,21.8
2001,22.5,23.8,24.5,24,23.6,23,23,22,21.8,22.9,24.2,23.4
2002,22.2,24.1,24.3,23.8,23.9,23.2,23,22.8,22.7,22.5,24.1,22.9
2003,22.8,25.1,25.4,24.5,24.2,22.8,22.3,22.9,23.4,23.7,23.7,23
2004,23.1,24,25.1,23.9,23.4,22.7,22.1,22.7,22.7,23.2,23.7,23.8
2005,22.2,25.2,25.1,24.8,23.9,23.1,22.3,22.6,23.4,23.5,23.8,23.6
2006,23.3,24.4,24.4,24.7,23.7,23.2,23.2,23,23,23.4,23.7,22.6
2007,22.1,24.3,24.7,24.1,24,23.1,23.2,23.4,23.1,23.1,23.9,23.1
2008,21.6,23.9,24.1,24.1,23.6,23.2,23.1,23.4,23.3,23.6,23.9,23.9
2009,23.2,24,25,24.4,24.2,23.2,23.3,22.9,23.4,24,23.8,23.5
