1901,21,23.9,26.9,31.1,30,29.1,28.9,28.3,27.7,27.7,25,21.8
1902,21,23.4,27.5,30,29.7,28.2,28.3,27.7,27.6,26.8,24.2,21.4
1903,20.2,22.5,26.6,30.6,29.9,28.2,28.7,27.2,27.6,27.6,24.3,20.1
1904,20,22.2,26.7,29.2,29.4,28.4,28.3,27.9,28.2,27.5,24,20.6
1905,20,22.1,26.2,29.4,30.1,28.6,28.6,27.7,28.4,27.6,24.9,22.5
1906,22,23.2,26.4,30.1,30.7,28.7,29,27.7,28.8,27.4,24.5,21.7
1907,21.3,22.9,25.9,29.7,29.2,28.4,28,28,27.8,27.4,24.7,20.9
1908,21,23,27.5,31.2,29.4,28.6,28.3,28,28,27.1,23.8,21.4
1909,21,23.3,27.8,30.4,29.1,28.3,28.8,27.6,28.5,28.1,25,21
1910,21,22.5,26.2,30,29.8,28.3,27.9,27.8,28.1,27,24.7,20.4
1911,21.3,22.4,26.3,30,29.5,28.6,28.2,27.9,28.1,27,24.6,21.4
1912,20.8,23.2,26.7,29.9,30.1,28.7,28.2,27.5,27.8,26.8,24.2,20.9
1913,21,24.2,26.3,29.6,28.9,28.6,28.3,27.5,27.7,26.9,23.8,20.6
1914,20,23.3,26.7,29.5,29.8,28.6,28.5,27.1,27.7,26.1,24.5,21.8
1915,21.5,23.6,27.1,30.2,29.2,28.3,28.1,27.8,27.6,28.2,25.1,20.6
1916,20.3,23.9,27.1,30,30,28.9,29,28.7,28.9,27.8,26,21.8
1917,20.5,22.9,26.2,29.4,29.5,28.5,28.9,28.5,28.4,28,26.4,21.4
1918,20.7,23,26.7,29.1,28.8,28.1,29.1,28.1,28.9,28,25,22.4
1919,22.2,23.9,27.7,30.5,30.7,29.2,28.9,29.2,28,28.1,25.9,22.3
1920,21.6,23,27.3,29.9,29.4,29,29.7,28.2,28.7,27.8,25.1,22.6
1921,22.1,23.4,27.3,30.7,30.1,28.8,29.1,28.8,28.7,26.9,25.3,22
1922,22,23.7,27.1,30.2,30.1,29.1,29.1,28.6,28.9,28,25.4,22.2
1923,21.9,22.2,26.7,30.3,29.5,29,28,27.9,28,26.9,25.2,22.2
1924,21.8,23.2,27.8,31.1,29.9,29,28.2,27.7,27.5,27.4,25.1,20.6
1925,20.7,22.9,27.2,30,29.2,28.9,29,28.3,28.5,26.9,24.9,22
1926,22,23.3,26.8,29.7,29.8,28.7,29.2,28.8,28.9,28.3,25.4,23.1
1927,21.1,23.2,25.9,29.6,29.2,29.1,29.5,28.7,28.2,27.6,25.1,22.5
1928,22.8,24.6,27,30.6,29.8,28.1,29.3,28.6,28.7,27.5,24.6,23
1929,22.4,23.3,27.2,30.3,29.9,28.6,29.6,28.6,28.8,28.2,25.1,22.3
1930,20.5,23.1,26.7,30.4,29.6,28.5,28.5,27.5,28.1,27,25.1,22.1
1931,22.2,23.5,27.4,32.1,30.6,29,28.9,28.7,27.6,27.1,23.8,22.1
1932,21.5,22.4,27.3,30.6,31.6,29.2,28.5,28.3,28,27.5,25.6,21.2
1933,22.1,23.2,27.7,30.2,29.1,28.5,28.3,27.5,27.9,27.6,24.1,21.3
1934,21.7,23.2,27.3,31.2,31.7,28.6,28,27.8,28.2,27,24.4,19.9
1935,21,23.4,27.4,29.7,31.7,28.6,28.4,27.2,28,27.8,25.4,22.5
1936,20.7,22.1,27.6,30.5,30.2,28.3,28,28.1,27.6,26.5,25.7,23.3
1937,20.9,24.1,26.6,31.1,28.9,28.8,28.6,28.1,28.2,27.5,25.8,22.5
1938,22.1,23,28.3,31.6,28.1,28.6,27.9,27.7,27.9,27.3,22.4,21.2
1939,21.8,22.6,26.4,31.4,29.4,28.3,27.5,27.4,27.2,26.9,24.8,20.1
1940,20.1,22.1,24.4,31.2,28.9,28.3,27.7,27.8,27.7,27.1,24.2,20.9
1941,21.1,22.8,27.1,30.9,30.2,28.6,28.6,28.2,27.9,27.3,24.4,22.9
1942,21.1,24,27.3,30.4,29.7,28.5,28.8,27.7,27.7,27.7,25.2,21.3
1943,21,22.1,26.4,29.2,29.8,28.1,28.4,27.3,27.8,27.4,24.8,21.8
1944,21.3,23,27.4,30.1,29.9,28.3,28.8,28.1,27.6,27.6,24.3,21.3
1945,21.4,22.5,27.1,30.5,29.5,28.7,28.6,27.6,28.2,26.9,25.2,21.8
1946,20.7,24,27.3,29.4,29.7,29.1,28.8,28,27.9,26.7,25.1,23.2
1947,22.3,23.7,27.7,30.4,30.7,28.8,28.4,28.5,28.1,27.1,24.6,22.2
1948,21.2,22.9,25.4,29,28,28.9,28.5,28.1,27.8,26.6,24.5,21.9
1949,20.9,22.9,26.4,28.7,29.1,28.9,28.3,27.8,27.8,27.8,24.8,20.7
1950,20.8,22.6,26.2,29.7,30.4,28.7,28.4,27.7,28.2,27.4,24.5,20.4
1951,19.9,22.5,26.4,29.9,29.2,28.3,28.5,28.4,28.4,27.6,25.1,22.2
1952,20.8,23.7,25.6,30.1,30.5,29,28.3,27.9,27.6,27.7,24.7,20.6
1953,21,23.1,27.5,31.3,28.9,29.3,28.2,27.9,27.8,27.6,24.8,22.3
1954,20.5,23.6,27,31.7,29.4,28.6,28.4,27.9,28.1,26.7,23.9,21.5
1955,20.4,22.7,26.7,30.5,29.5,28.5,27.8,27.6,27.9,27.5,24.8,19.8
1956,20.2,22.7,27.4,31.1,28.1,28.6,28.3,27.8,27.6,27,24.5,21.3
1957,21,22,26.5,31.2,31.5,29.1,28.2,28.2,28.2,27,24.4,21.6
1958,21.6,22.8,26.6,31.3,30.6,29.5,28.4,28.1,28.2,27.8,24.6,20.8
1959,21,22.6,26,31.1,29.9,29.4,28.4,27.6,27.2,26.8,24.1,22.5
1960,21.1,23.3,26.1,31.7,30.6,29.1,28.3,28,27.9,27.1,24.7,21.4
1961,21.1,22.3,27.5,30.1,29.7,29.3,28.1,27.9,27.3,27,24,20.7
1962,20,22.8,26.4,30.4,30.2,28.5,28.9,27.9,28.1,27,24.1,21.2
1963,19.8,23.4,26.8,28.8,29.1,28.4,28.1,27.9,28.2,26.8,24.3,21.1
1964,20.8,23,26.8,30.4,29.2,28.6,27.8,27.9,28,27.4,24.7,21
1965,20.4,22.7,26,30.7,30.3,28.4,28.2,27.4,27.5,26.8,24.1,22.7
1966,21.8,23.8,27.1,31.5,30.9,28.2,28.6,27.6,27.6,26.8,25.7,22.4
1967,21.6,22.8,26.5,29.9,29.7,28.7,28.4,27.9,27,26.7,23.6,21.4
1968,20.5,21.9,26.5,29,29.2,28,28.5,27.8,28.1,27,25,21.9
1969,20.3,22.8,26.8,30.6,30.5,28.7,28.6,27.4,28,27.1,24.4,21.4
1970,20.6,22.9,26.6,30.9,29.1,28.6,28.1,27.9,27.7,27,24.3,21.7
1971,20.6,22.4,27.2,29.6,29.7,28.1,27.7,27.1,27.8,26.8,22.9,20.9
1972,20.5,22,27.4,29.9,31.1,29,28.7,27.6,28.2,27.4,25.3,21.9
1973,21.2,23.9,27.5,31.2,28.6,28.9,28.7,28,27.8,27.6,24.2,20.6
1974,19.5,22.2,25.1,29.6,29.4,28.5,27.9,27.7,27.7,28.2,25.6,21.1
1975,20.9,23.4,29.3,28.7,27.6,28.6,28.1,28.1,27.8,27.9,24.3,20.3
1976,20.3,23.3,29.1,28.6,28.2,28.4,28.4,27.4,28,27,24.3,21.3
1977,20.9,22.1,27.4,29.1,29.1,27.9,27.8,27.3,27.5,26.5,24.2,21.7
1978,19.6,22.8,26.6,30.6,29.6,29,28.9,28.7,28.1,27.8,25.5,22.7
1979,22.1,24.2,27.4,31.3,31.9,29.6,29.3,27.8,28.3,27.4,25.5,22.3
1980,21.2,23.5,27.4,32.5,31,28.8,28.7,27.6,28.4,26.8,25.2,22.1
1981,21.4,23.6,27,29.5,30.1,28.7,28.1,28.1,28,27.7,25.5,21.4
1982,20.9,23.1,26.6,30.4,31.4,28.6,28.6,27.8,27.8,27.6,24.8,20.6
1983,20.5,23.4,27,30.7,31.6,27.8,29.2,28.3,28.4,27.6,24.4,20.6
1984,21.2,24.4,27.5,31.1,29.9,28.5,28,27.9,27.7,27.2,24.7,22.2
1985,21.9,23.5,28,31.2,29.7,28.2,27.7,28,27.9,27.5,24.2,21.9
1986,21.3,24.2,27.1,31.1,29.8,29.1,28.1,28.4,27.7,27.1,25,22.4
1987,22,24,26.7,30.4,31.9,28.6,29.1,28.3,28.4,27.9,26.1,21.5
1988,21.8,24.4,28,30.6,30.5,28.2,28.7,28.2,28.4,27.9,25.1,22.3
1989,21.2,23.1,27.3,30.7,28.8,28.6,28.4,28.3,28,27,24.2,20.7
1990,21.4,23.9,25.8,29.8,29.9,29.4,28.7,28.3,28.2,27.2,25.5,21.6
1991,21.4,24.6,28.7,30.3,30.7,28.2,28.8,28.1,28.3,27.7,24.1,21.5
1992,20.3,21.7,27.7,29.8,29.8,29.8,28.3,28.3,28.1,26.5,24.2,20.2
1993,20.9,22.8,26.5,30,29.5,29,29.3,28,28.1,27.7,24.6,22.1
1994,22.2,23.8,27.1,31.1,30.4,28.9,28,27.9,28.3,26.9,24.1,21.6
1995,21.5,22.6,27.7,32.2,31.4,29.2,28.6,28,28,27.8,25,21.2
1996,21,23,27.8,29.4,29.4,28.5,28.3,27.7,28.1,27.1,25.2,22.3
1997,20.5,22.3,27.3,28.4,31,28.9,28.7,28.5,27.6,27.1,25.4,22.5
1998,20.9,23.3,26.9,31,31.1,29.7,28.8,28.5,29.1,28.9,26,23.3
1999,22.2,25.7,28.2,31.4,28.1,28.9,28.3,27.7,27.6,27.7,24.8,21.5
2000,21.8,23.3,26.2,30.9,28.1,28.8,28.1,28.3,27.4,27.8,24.5,22
2001,22.2,24.5,27.9,32.3,28.8,28.2,28,27.9,28,27.3,23.7,22.4
2002,21.4,24,27.8,31,28.8,29,28.2,27.4,27.5,27.1,24.8,22.4
2003,21,23.2,26.1,30.8,30.7,28.4,28.5,28,28.1,27.7,24.6,21.7
2004,21.5,23.4,28.7,30.5,29.9,28.8,27.6,27.9,27.2,26.8,24.6,21
2005,21.2,24.5,28,30.7,29.8,28.9,28.5,27.4,27.9,27.3,24.7,22.1
2006,21.3,25.1,28.3,30.2,29,28.6,28.1,27.7,28,27.5,24.7,22
2007,20.9,23.1,27,30.8,29.2,28.8,28.1,28.1,28.1,27.1,24.3,21.8
2008,23,23.4,27.9,31.3,29.6,28.7,28.6,28,28.2,27.7,24.9,22
2009,21.7,25.2,28,31.3,30.2,29,28.9,28.6,29,28.3,25.5,22.1
