1901,22,22.8,24.1,25.5,25.4,24.9,24.6,24.5,24.3,24.2,23.6,22.3
1902,21.6,22.8,24.3,25.6,25.6,25.3,24.8,24.7,24.2,24.3,23.8,23
1903,22.1,22.4,24.8,26.1,25.7,24.7,24.6,24.3,24,24,23,20.9
1904,20.7,22.1,23.9,25.1,25.3,24.9,24.6,24.7,24.5,24.5,23.3,21.7
1905,22.7,23.1,24.1,25.9,25.5,25,24.8,24.9,24.5,24.5,23.9,23.9
1906,22.8,23.6,24.4,26.2,26,25.3,24.9,25,24.7,24.2,23.2,22.5
1907,21.9,22.8,23.8,25.4,25.1,24.8,24.7,24.5,24.4,24.4,23.8,21.4
1908,21.9,22.5,23.8,25.4,25.3,24.9,24.6,24.5,24.4,24.4,23.1,22.2
1909,21.9,22.9,24.1,25.5,25.1,25,24.5,24.7,24.5,24.5,23.2,21.8
1910,22.3,22.3,23.7,25.4,25.4,24.9,24.7,24.7,24.1,24.2,23.5,21.5
1911,21.7,22.5,24,25.8,25.5,25.2,24.9,25,24.8,24.5,24.6,23.3
1912,22.6,23.2,25.3,26,26.6,25.7,24.6,24.3,24.4,24.2,23,22.4
1913,21.8,23,24.7,25.9,24.9,24.8,24.3,24.4,24.4,24.3,23.2,22.5
1914,21.4,23.1,24.5,26.2,26.6,24.9,24.6,24.7,24.4,24.2,24.1,23.2
1915,22.2,23.6,24.6,26.1,25.9,25.6,24.8,25.1,24.3,24.3,23.4,21.4
1916,21.2,22.7,24.6,25.8,25.3,24.7,24.5,24.5,24.1,24,22.9,21.7
1917,21.8,22.4,23.5,26,25.3,24.6,24.3,24.1,23.9,23.7,23.2,21.7
1918,20.2,21,23.5,24.8,25,24.7,25,24.6,24.6,24.3,24.2,22.8
1919,22.5,23.3,25.1,26.2,26,25,24.5,24.5,24.3,24.3,23.5,22.6
1920,21.1,22.9,24.5,25.8,25.9,25.2,24.7,24.8,24.5,24,24.1,22.4
1921,21.6,22.4,24.3,25.4,25.1,24.8,24.2,24.4,24,24,22.9,22.2
1922,22.4,23,23.6,25.5,25.4,24.9,24.1,24.4,24.7,24.1,23.4,22.2
1923,21.5,22.1,23.7,25.2,24.7,24.5,23.9,23.8,23.9,24,23.8,22.6
1924,22.3,22.9,24.2,25.5,25.5,24.8,24.1,24.6,24.3,23.9,23.7,21.2
1925,22.1,22,23.8,24.9,25.5,24.8,24.5,24.6,24.3,23.8,23.5,21.3
1926,21.9,23,24.2,26.5,26.3,25.2,24.7,24.4,24.3,24,23.6,22.6
1927,21.8,22.8,24.7,25.2,25.1,24.7,24.4,24.4,24.4,23.9,23.7,22.6
1928,23.5,22.5,25.1,25.6,25.8,25,24.9,24.8,24.4,23.5,23.3,23.6
1929,23.1,22.9,23.8,25.5,26.6,25.3,24.7,24.6,24.4,24.4,23.2,23.3
1930,20.6,22.9,23.6,26.6,25.6,25.3,25,25.1,24.3,24.5,24.4,23.2
1931,23.2,24,25.1,27,26.1,25.8,24.9,25.1,24.5,23.4,23.6,22.6
1932,21.7,22.2,23.3,25.6,25.8,24.9,24.4,24.4,23.7,24.1,23.5,22.2
1933,20.8,23.4,23.7,26,25.8,25.7,24.7,24.8,24.4,23.9,22.9,22.6
1934,20.7,21.8,23.2,24.4,25.5,24.9,24.3,24.7,24.6,23.3,24,22.5
1935,22.7,23.5,25.1,26,25.1,25.2,25,24.6,24.1,24.5,24.4,22.2
1936,21.8,23.2,22.9,26.3,25.5,25.1,24.8,24.2,24.2,23.6,23.7,23.2
1937,22.6,23,25.6,26.2,25.4,25.2,24.7,24.6,24.1,24.2,23.7,22.9
1938,22.5,22.8,23.1,25.1,25.1,25.3,24.3,23.8,24.3,24.3,23.7,22.9
1939,22.3,22.4,23.7,25.3,25.1,24.9,25.3,24.8,24.5,24.5,24.2,20.8
1940,20.1,22.3,24.2,25.5,25.4,25.1,24.7,24.4,24.9,24.7,24.3,23.1
1941,24,23.7,24.5,26.6,26.1,25.1,25,25.2,24.9,24.9,24.4,23.1
1942,21.5,22.9,24.1,25.1,25.1,24.9,24.6,24.3,24.2,24.3,23.8,22.3
1943,21.1,22.1,24,24.8,25.2,24.5,24.4,24.2,24.2,24.2,23.4,22
1944,22.1,22.8,24,25.5,25.3,24.7,24.5,24.5,24.5,24.4,23.6,21.8
1945,21.9,23,23.9,25.2,25.1,24.7,24.7,24.4,24.2,24,23.9,22.4
1946,21.6,22.9,24.8,25.3,25.3,24.9,24.4,24.4,24.3,23.9,23.9,22.8
1947,23.4,22.6,24.4,24.6,25.3,24.6,24.6,24.5,24.3,24.1,23,22.1
1948,21.7,22.9,24.1,25.4,25.3,25,24.6,24.5,24.4,24.4,21.9,22.6
1949,21.4,22.4,24,25.3,25.3,25,24.9,24.3,24.3,24.1,23.2,22.4
1950,22.4,22.5,24.6,25.1,25.4,24.9,24.4,24.9,24.3,24.8,24.1,21.5
1951,22.2,22.7,24.2,25.9,25.6,25.2,24.5,25,24.9,24.8,24.7,22.8
1952,22.4,23.5,24,25.4,25.8,25.1,24.7,24.3,24.1,24.1,23.6,21.4
1953,22.4,23,24.2,25.6,25,25,24.2,24.5,24.3,24.3,23.8,23
1954,23.6,22.2,23.9,25.7,25.2,25.4,24.7,24.9,23.7,24,22.8,21.8
1955,20.9,22.5,24.1,24.5,25.3,24.3,24.4,24.1,24,24.4,23.5,21.2
1956,20.7,23,23.9,25.2,25.2,24.3,24.3,24,24.4,23.4,22.9,21.9
1957,21,21.7,23.6,24.8,25.2,24.3,24.3,24.4,24.6,24.2,23.6,23
1958,22.4,22.5,24.8,26,25.9,25.2,24.6,24.1,23.7,23.5,22.3,21.2
1959,20.7,23.2,22.5,24.9,25.2,25.3,24.4,24.2,23.5,23.7,23.5,23.4
1960,22.1,21.8,24.2,25.6,25,24.8,24.6,24.8,24.2,24.3,24.5,22.1
1961,20.6,22.3,24.2,24.9,25.1,24.7,24.4,24.4,23.8,23.6,23.4,22.9
1962,21.2,21.5,23.9,25.2,25,24.4,24.5,24.1,24.2,23.8,23.1,21.9
1963,18.4,20.8,22.7,24.9,25.1,24.1,24.1,24.3,24.2,24,24.2,21.8
1964,23.5,22.4,23.9,26,24.8,24.8,25.1,24.8,24.4,24.7,22.8,21.5
1965,20.5,23,23.1,24.7,24.7,24.6,24.7,24.3,23.9,24.8,24.7,24.1
1966,23.5,23.8,24.9,25.8,25.2,25.1,24.9,24.4,24.4,24.9,23.8,23.5
1967,21.7,21.9,23.8,24.7,25.6,25.4,24.4,24.9,24.2,23.5,23.7,21.1
1968,22,22.7,23.9,25,24.9,24.9,25,24.5,24.6,24.1,24,23.5
1969,24.2,22.9,24.9,25.8,25.6,24.9,24.5,24.4,24.9,24.3,22.6,20.9
1970,22.2,22.1,24.6,25,24.8,24.7,24.5,23.5,23.6,23.6,23,22.9
1971,20.2,21,22.7,25,25.2,24.1,24.5,24.1,24.5,24,22.6,22.7
1972,20.3,22.9,23.1,24.1,24.9,24.5,24.8,24,24.2,25,24.1,23.5
1973,22.2,23.8,25.3,26.1,25.3,25.7,25,24.9,24.2,24.4,23.3,21.9
1974,21.1,22,23,24.8,25.1,24.9,24.5,24.5,24.1,24.2,23.6,22.3
1975,23.3,23.3,23.9,25.4,25.1,24.8,24.6,24.3,24.5,24.1,23.4,21.5
1976,20.2,22.6,23.2,24.8,25.8,24.7,24.6,24.2,24.2,24.2,22.6,22.2
1977,22.1,22.3,23.6,25.3,25.3,24.6,24.5,24.3,24.3,24.2,23.2,22.6
1978,22.8,22.6,24.8,25.1,24.9,24.8,24.3,23.9,24,23.8,23.7,22.8
1979,22.7,23.2,24.9,25.4,25,24.8,24.7,24.7,24,23.6,23.8,22.8
1980,22,23,24.7,26,25.5,24.8,24.6,24.4,24.1,24.2,23.7,22.3
1981,20.9,22.7,23.7,24.5,25,24.4,24.2,25.2,25.1,24.1,23.7,21.4
1982,20.9,22.8,24.4,24.7,25.4,24.5,24.5,24,23.8,24.1,24.4,21.3
1983,21.9,23.6,25,27.1,26.8,24.9,25.2,25.2,24.9,24.5,22.9,22.1
1984,21.8,22.8,24.1,26,25,24.3,24.1,24.4,23.7,23.5,23.4,22.7
1985,22.2,23.8,24,25.2,25,24.5,23.6,24.3,23.8,24,24.1,22.1
1986,21.3,22.9,23.8,25.2,25,24.8,24.5,24.4,24.3,24.2,23.6,22.2
1987,22,22.5,24.6,26,25.4,25.4,24.7,24.8,24.3,25.1,24.4,21.1
1988,22.7,23.3,24.7,25.6,25.2,24.9,24.6,24.3,24.5,23.7,23.2,21.4
1989,23.5,22.4,23.9,26,25.5,24.6,25,24.6,24.4,24.3,23.4,22.2
1990,22.7,23.5,23.8,25.8,25.4,25.2,24.5,25,24.4,24,23.8,22.8
1991,23.4,23.6,25.5,26.7,26.2,25.6,25.2,24.7,24.9,24.1,23.6,23
1992,21.7,23.2,25,27.2,26.2,25.7,24.6,25,24.7,24,23.2,23.1
1993,22.3,22.5,24.4,25.7,25.8,25.3,24.6,24.5,24.5,24.4,23.8,22.4
1994,22.7,24.1,24.3,26.3,26,24.9,25.1,24.7,24.9,24.1,24,23.9
1995,22.4,22.3,24.1,26.3,25.5,25.2,24.4,25,24.9,24.1,23.9,22.2
1996,22.7,21.7,23.5,25.3,24.9,24.8,24.6,24.5,24.4,24.2,23.8,22.2
1997,21.5,22.8,23.6,24.7,25.4,25.1,24.6,24.6,24.7,24.8,24.3,23.4
1998,24.4,24.6,25.5,26.3,26.3,25,25.1,24.1,24.9,25,24.5,23.2
1999,23.2,22.9,24.2,25.4,24.9,24.3,24.8,24.7,24.6,24.5,23.3,21.4
2000,23.2,22.8,24.7,25.3,25.2,24.2,24.8,25.3,24.5,24.8,23.6,24.2
2001,24.1,23.5,23.8,26.5,25.5,24,25,24.9,24.9,24.8,22.8,22.7
2002,22.5,22.7,24.2,25.2,24.7,24.6,24.9,24.3,24,24.2,24.4,24.1
2003,22.2,22.8,23.7,25.4,25.6,24.3,24.4,24.7,24.3,24.3,24.1,22.1
2004,23.3,23,24.9,25.8,26.4,24.8,25.3,25.3,24.6,24.6,24.8,22.4
2005,23.2,25.1,24.4,26.3,25.6,25.5,24.9,24.8,25.3,23,24.4,23.2
2006,23.4,23.7,24.3,25.7,25.3,25.1,25.3,24.8,24.8,24.7,24.2,23.3
2007,23.6,24,25.2,25.6,25.5,23.6,25,24.4,24.9,24.3,23.3,23.8
2008,23.5,22,23.9,25.9,25.1,24.8,24.8,24.1,25,24.9,23.7,22.7
2009,22,23.8,24.2,25.9,25.8,25.2,24.8,25.2,24.8,24.6,24,23.6
