1901,21.4,21.7,23.4,23.9,25.5,27,27.3,27.5,27.3,26.1,22.9,22.2
1902,20.6,21.3,23.2,24.3,26,26.9,27.4,27.4,27.2,26.5,24.6,23.3
1903,22,23.2,23.8,23.9,24.8,26.6,27.3,27.5,26.4,25.3,23.8,22.1
1904,21.9,22.7,23.7,24.5,25.7,26.3,26.8,26.8,26.4,25.7,23.4,22.9
1905,20.4,22.7,23.9,24.5,27.1,27.5,27.2,27.4,27.1,26.5,24.9,23.6
1906,22.5,22.5,23.3,24,25.6,26.6,27.2,26.8,26.9,25.9,24,21.9
1907,22,21.8,23.6,24.3,26.5,26.8,27.3,27.1,26.8,26,24.7,23.3
1908,21.5,21.4,23.7,25.8,26.3,26.6,27.2,27.1,26.8,25.3,24.3,23.3
1909,21.9,22.2,23.6,24.5,26,26.9,27.1,26.8,26.5,25.6,23.6,21.9
1910,20.7,21.5,22.4,23.8,25.5,26.5,27,27,26.5,25.6,23.1,21.3
1911,22.1,22.2,23.1,24.4,25.1,26.6,26.9,27.1,26.8,26.6,25.5,23.7
1912,22.8,21.6,24.7,25.7,26.7,26.8,27.2,27.3,27.1,26.3,24.3,24.1
1913,23.1,23.4,24.9,24.1,25.3,25.9,27,26.9,26.6,25.8,23.6,22.8
1914,21.3,22.4,21.9,24.8,25.8,26.8,27.2,27.6,26.8,26,23.9,23.8
1915,22.3,21.7,21.4,23.2,26.9,27.5,27.5,28,27.6,26.8,24.8,22.7
1916,22.8,22.1,22.4,24,26.2,27.4,26.8,27.1,26.9,25.9,24.1,22.7
1917,22.3,21.5,24,24.2,25.9,26.6,27.2,27.4,27,26.2,22.8,21.6
1918,20.7,22.8,23.9,24.8,25.4,26.7,27.1,27.5,26.8,26.5,24.5,23.4
1919,21.6,22.3,23.9,24.1,26.1,26.7,27,27.7,26.9,26.6,24.2,22.7
1920,21.6,21.1,23,25.3,26.6,27.4,26.8,27.3,26.8,25.5,24.5,23.5
1921,20.9,22.4,23.7,25.2,25.8,27.3,27,27.2,27.3,25.8,24.5,23.2
1922,21,21.5,23.5,24.6,25.3,26.9,26.5,26.8,26.9,26.1,24.5,23.5
1923,21.4,21.7,23.7,24.7,25.7,26.8,26.8,26.9,27.4,26,24,23.5
1924,22.7,21.7,23,26.1,27.1,27,27.7,28.1,27.2,26.4,24.3,24.1
1925,23,23.1,24.2,25,26.5,27.1,27.2,27.8,27.7,26.7,25,23.7
1926,21.6,22.4,23.9,26.3,26.4,27,27.2,27.7,27.5,26.9,25.1,23.8
1927,20.8,23.1,23.4,25.3,26.1,27.5,27.5,27.2,26.4,25.4,23.7,22.5
1928,21.3,22.7,23.3,24.4,24.9,26.8,27.2,27,27,25.6,24,22.3
1929,22.6,23.2,24.3,25.1,26.5,26.4,26.6,26.9,26.6,24.9,24.7,23.1
1930,22.9,22.3,23.3,24.9,26.1,26.3,27.1,27.5,27.1,25.4,23,22.4
1931,21,21.2,22.1,23.8,25.7,26.7,27.5,27.7,27.1,26,24.1,24
1932,22.5,23.4,23.2,24.2,26.7,26.5,27.3,27.2,27.1,25,23,22.8
1933,22.1,23.2,24.1,25.4,26.9,26.8,27.5,27.6,27,26.6,23.9,23.7
1934,22.6,21.9,23.3,24.7,26,26.7,27.3,27.5,27.2,26.5,23.7,22.6
1935,22,21.7,23.9,25.7,27.1,27.1,27.2,27.2,27.1,26,24,21.8
1936,22.7,22.6,22.9,24.9,26,26.4,27.4,27.3,27,27.1,24.9,23.5
1937,23.8,23,24.1,25,26,26.9,27.1,27.3,27.2,26.2,24.1,22.9
1938,22.7,23.3,23.5,24.5,26.2,26.7,26.7,26.8,26.8,25.8,24.5,22.4
1939,22.4,23.3,23.5,24.2,25.6,26.5,27.2,27.5,27,26.6,24,22.8
1940,20.5,21.2,23.1,24.6,25.6,27.3,28.1,27.7,26.6,25.1,24,23.2
1941,22.2,20.6,22.4,24.1,25.7,27.5,27.6,27.9,27.4,26.7,24.9,24.5
1942,22.5,21,23.8,24.5,26.2,27.1,27.9,27.8,27.3,26.1,24.8,23.8
1943,22.7,21.8,23.5,23.9,26.2,27,27.5,27.1,27.2,25.5,24.4,22.5
1944,21.5,22.6,24.4,25.2,25.6,27,27.5,27.4,26.8,25.6,23.1,22.2
1945,21.1,22.5,23.8,25.3,25.6,27.4,27.2,27,26.6,25.6,23.5,22.5
1946,22.4,22.8,23.9,24,26.5,27,27.3,27.3,26.9,26.2,24.9,23.7
1947,23.4,21.5,23.3,25.8,26.2,27,27,27,26.7,25.9,25.5,23.5
1948,22.7,23.4,25,25,26,26.9,27.3,27.4,27.3,26,25.5,24
1949,22.4,23.2,23.7,25.2,25.8,26.6,26.9,27.1,27.2,26.4,23.8,23.3
1950,22.6,22.1,23.5,23.5,25.7,26.7,27.2,27.1,26.6,25.7,23.4,21.9
1951,20.3,21.2,22.7,24.6,26,27,27.3,27.6,27.4,25.9,24.5,23.5
1952,21.8,21.9,24.3,24.3,26.3,27.4,27.2,27.4,27,25.9,24.3,21.9
1953,21.7,22.9,23.9,25.3,26.2,26.4,27.1,27.4,26.9,25.4,24.5,23.6
1954,22.7,21.8,23,24.9,25.9,26.5,27.4,27.3,26.6,25.4,23.4,21.7
1955,21.2,21.9,23.4,24.4,25.8,26.1,26.6,27.3,26.8,25.4,24.3,23
1956,20.8,22.7,23.1,24.8,26.2,26.4,27.4,27,26.5,25.6,23.5,23.1
1957,22.3,22.9,23.5,24.8,25.9,26.7,27.8,27.4,26.9,25.3,24.9,22.6
1958,20.9,20.4,23.6,25.2,26.2,27,27.8,27.9,27.4,25.8,25.4,23.6
1959,22.3,24.1,24.1,25,25.8,27.2,27.1,27.6,27.1,26.7,24.8,22.9
1960,22.1,22.8,23,24.9,26,26.5,27.4,27.4,26.8,26.4,24.9,22.2
1961,22,23.3,24.5,25.3,26.2,27.1,27.4,27.7,26.8,25.8,24.4,23.3
1962,22.7,23.2,23.6,25.6,25.5,26.5,28,27.7,27,26.2,23.7,22.1
1963,22.2,22.3,24.1,24.7,25.7,26.9,27.5,27.7,27.7,25.8,24.2,22.3
1964,22.2,22.4,24.7,25.4,26.1,26.9,27.4,27.6,27.1,25.8,24.6,23.9
1965,21.6,23.3,23.9,25,25.7,26.7,27.3,27.7,27.3,26.3,24.5,23
1966,22,22.6,23.3,24.6,26.2,26.5,27.2,27.8,27.7,26.5,23.7,22.4
1967,22.6,22.4,23.2,24,26,26.5,27.9,27.7,27,26.1,24.5,23.3
1968,22.1,21.4,22.4,24.2,25.9,26.8,27.4,27.6,26.7,26.1,24.3,22.6
1969,22.2,21.6,23.3,25.6,26.8,27.5,28.2,27.7,26.9,26.5,24.1,22.1
1970,21.5,21.4,23.3,25.3,26.4,26.9,27.4,27.4,26.7,26.4,23.2,22.9
1971,21.6,22.7,23,23.9,26.4,26.8,27.3,26.9,26.8,25.9,24.2,23.8
1972,23.1,22.6,23.6,24.9,26.2,26.7,27.3,27.5,26.7,25.9,25.3,23.7
1973,23,21.6,24.4,25.1,26.3,27.1,27.5,27.3,26.9,26,24.8,22.4
1974,23.6,22.2,23.8,24.6,26.1,26.6,27.1,27.1,27,25.7,24.1,22.6
1975,22.7,23.5,24.1,25.3,26.6,27,27,27.3,26.8,26,24,22.5
1976,21,22.3,23.7,23.8,26.1,26.3,27.4,27.4,27.1,25.9,24.5,23.5
1977,20.4,22.3,24.6,24.6,25.5,27.5,27.8,27.5,27.3,25.9,24.8,23.4
1978,21.6,20.5,22.9,24.5,26.6,27.3,27.7,28,27.1,26.1,25.1,24.2
1979,22.4,22.4,23.2,24.7,26.1,27,27.8,27.8,26.5,26.1,25,23.2
1980,22.3,21.5,24.5,25.2,26.5,27.4,27.7,27.5,27.1,26.5,24.8,22.3
1981,20.2,22.4,22.9,25.3,26.9,27.4,27.9,27.5,27.1,26.5,24.2,23.6
1982,22.6,23.4,24.5,25.6,25.6,27,27.7,27.7,28.1,26,24.7,23.5
1983,22.4,22.5,23.5,24.5,26.3,26.9,27.8,27.7,27.3,26.3,25,24.3
1984,22.5,23.2,24,25.6,26.4,26.5,27.4,27.2,26.3,25.6,24.1,23.4
1985,21.1,22.3,23.5,24.1,26.3,27.4,27.1,27.4,26.9,26.5,25.1,23.1
1986,21.7,22.5,23.4,24.1,25.7,27,28,27.7,27.3,26.3,25.7,24.5
1987,22.2,23,23.9,24,26.6,27.5,28.3,28.3,28,26.7,25.4,23.8
1988,22.6,22.6,23.9,25.4,26.4,27.3,27.8,27.3,27.1,26.5,25.2,23.3
1989,22.7,22.7,23.8,25.3,26.8,27.5,27.6,27.6,27.6,26.3,25.3,22.8
1990,23.5,24,24.4,24.9,26.5,27.5,27.9,28.1,27.4,26.7,24.9,23.9
1991,24.1,22.9,24.6,25.7,26.6,27.6,28.4,27.9,27.6,26.4,24.6,23.6
1992,22.6,23.5,24.1,24.7,25.7,27.7,28,27.9,27.3,26.1,25.5,23.7
1993,23.3,22.3,23.3,24.6,26,27.6,28.3,28.1,27.3,27,25.7,23.8
1994,23.3,24.2,24.9,25.9,27,28.1,28,27.9,27.4,27,25.5,24.1
1995,22.5,22.7,24,25.8,27.7,27.8,28.3,27.8,28.1,26.9,24.9,23
1996,22.3,22.2,22.8,24.6,26.3,26.8,27.6,27.5,27.4,25.9,24.3,23
1997,22.6,24.5,24.8,25.4,27,27.2,27.8,28.3,27.3,26,25.8,24
1998,23.5,23.3,23.9,25.4,27,28.5,28.7,28.7,28.2,27.1,25.7,24.7
1999,23.7,22.7,23.7,25.9,26.6,27.5,27.8,28,27.1,26.7,25.2,23.6
2000,22.5,22.9,24.4,25.5,26.9,27.7,28.3,27.8,27.9,26.3,24.9,23.5
2001,21.1,24.3,24.8,25.5,26.1,27.5,28.1,28.4,27.1,26.7,24.7,24.6
2002,23.4,23.3,25.2,26,27.1,27.6,28.1,28.2,27.9,27.3,25.4,24.3
2003,21.3,23.9,26.4,25.5,27.5,27.5,28.4,28.4,28.2,27.5,25.9,23.4
2004,22.3,23.5,24.4,24.9,26.4,28.1,28.3,28.2,27.9,26.6,25.6,23.6
2005,22.2,21.4,24.6,25.2,26.6,27.3,28.3,28.5,28.2,26.8,25.5,23.9
2006,22.5,21.2,24.2,25.7,27.3,27.8,28.6,28.8,28,27.2,24.6,24.8
2007,23.8,23,24.6,25.4,26.2,27.6,28.8,28.2,28,27.2,25.2,24.7
2008,22.6,23.4,24.6,25.4,27.3,28,27.9,27.5,27.6,26.3,24,23.4
2009,21.9,21.7,23.4,25,26.7,27.7,28,28.2,27.8,27.2,25,25
