1901,23.5,22.3,19.3,19.9,14.9,11.8,12,13.8,15.9,16.7,19.4,21.1
1902,21.3,22.2,21,18.8,16.2,12.5,13,13.9,16.4,17.2,19,21.2
1903,22.5,21.8,20.5,18.5,16.6,12.7,12.2,14.6,16.2,18.1,18.7,20.8
1904,21.9,21.2,20.3,18.8,16.1,13.4,12.5,14.1,15.5,17.7,19.7,20.7
1905,21.9,21,19.6,18.6,16,13.1,12.7,13.6,16.4,18.2,18.7,21
1906,23,21.3,20.5,17.7,15.9,13.3,12.5,13.5,15.6,16.8,18.6,20.5
1907,21.7,21.6,21.2,17.7,15.6,12.4,11.8,13.9,16,17,18.5,20.2
1908,21.4,21.5,20.5,17.6,15.2,12.9,12.4,14.1,16.5,17.6,19.4,20.9
1909,21.7,21,20.3,18.5,15.6,11.8,13,14.4,15.6,17.4,18.6,20.9
1910,21,19.9,19.8,16.7,14,11.1,11.3,12.9,14.5,16.8,17,19.6
1911,20.8,21.5,19.3,17.2,14.8,10.9,11.2,12.5,14.5,18.4,18.6,21.1
1912,21,21.9,18.8,18.8,16,12.3,11.8,13.4,14.6,16.5,18.8,20.7
1913,21.4,22.2,19.7,18.9,15.7,12.4,13.3,14,15.7,16.9,19.2,20.1
1914,21.8,21.1,20.2,18.6,16.4,12.1,12.2,13,16.7,17.8,18.7,21.9
1915,23.1,21.3,20.7,19.3,14.9,11.7,12.4,13.4,15.4,16.1,18,19.4
1916,20.4,20.7,19.4,18,13.9,12.6,12.5,12.8,15.8,17.8,19.3,21.1
1917,21,20.5,20.4,17.6,14.9,12.4,11.8,12.5,15.4,16.7,19.3,19.9
1918,20.4,21.3,20.4,16.5,13.8,11.3,12.5,12.9,17.1,18.5,19.1,20.5
1919,21.3,21.2,19.9,19.2,14.3,12.5,12.9,13.1,14.7,16.9,17.9,20
1920,22.1,21.2,19.9,17.1,15.3,10.7,12.7,13.8,16.4,17.1,19.5,19.8
1921,20.6,22.4,19.9,17.2,14.7,12.9,11.6,12.8,14.7,17.4,18.8,20.4
1922,21.5,21.1,20.1,17.3,14.6,12.7,12.8,14.7,16.8,18.1,19.3,20.8
1923,21.8,21.8,20.8,17.6,14.2,11.6,12.4,14.1,15.9,17.9,20.4,20
1924,20.6,20.3,20.3,16.9,14.7,11.7,11.5,12.8,15.3,16.9,19,20.2
1925,21.1,22.4,21.5,18.4,14.8,11.4,11.9,13.4,15.9,17.1,18.9,20.7
1926,22.1,23.2,20.2,17.1,15,13,11.5,12.7,15.5,16.8,18.1,20.5
1927,21.2,20.9,20.1,18,13.8,11.7,12.8,13.3,15.9,17.4,19.1,20.1
1928,21.2,20.1,20.3,17.6,14.4,12.6,11.7,12.7,15.2,17.8,19,21.1
1929,20.8,20.6,19.2,17.3,15.3,12.9,12,13.1,17.4,17.7,19.2,20.3
1930,20.9,20.3,20.2,18,14.1,11.5,12,13,15.2,16.8,18.7,21.4
1931,21.1,22.2,20.4,17.9,16.3,12.2,12.8,14.1,15.9,17.5,19.1,21
1932,20.9,21.6,20.2,19.1,15.2,12.8,11.2,14.1,17.6,17.4,19.2,20.7
1933,20.6,20.9,20.4,18,15.6,12.5,12.9,13.9,16,17.1,19,20.1
1934,21.4,20.5,20.5,19.1,16.5,13.9,12.8,15.1,15.3,17.4,19,20.8
1935,20.7,19.5,18.9,17.2,15,11.9,12.2,12.1,15.8,17.1,18.6,19
1936,20.4,21.1,20.5,17.6,14.3,12.3,12.4,13.7,14.9,16.1,17.9,19.5
1937,20.7,21.9,20.4,17.6,14.9,12.7,11.9,13.9,15.2,16.9,18.7,19.9
1938,20.9,20.6,20,19.4,15.7,13.2,13.1,14.2,16.2,18.1,19.2,20.6
1939,20.6,22.4,20.1,18.1,16,12.6,12.7,13.6,14.6,18.2,18.1,19.6
1940,21.1,21.4,21.3,18,15.4,13,11.6,14.6,16.8,17.1,19.4,21.8
1941,21.5,21.9,20.5,19.5,17,12.9,12.9,14.4,16.5,18.7,19.5,21.5
1942,22.8,22.3,21.4,18.5,15,12.8,12.4,15.3,16.4,17.4,19,20.5
1943,21.2,20.6,20.8,18.6,15,11.7,13,14,16,18.3,20,19.8
1944,22.3,21.1,20.2,18,14.1,13.2,13.3,15.1,16.7,18.7,19.7,20.1
1945,20.6,22,20.2,18.7,14.5,11.4,11.9,13.2,16.9,17.7,19,20.1
1946,21.5,21.4,21.1,19.4,16.3,12.5,12.8,13.9,16.5,18.3,19.8,20.8
1947,21.7,22.5,20.4,19.2,15.3,13.4,11.1,14.4,15.5,18.9,20,20.4
1948,21.1,21,20.7,17.9,16.1,12.6,13.8,14.3,15.6,18.2,18.6,20.4
1949,22,20.9,20.3,18.5,15.7,14.5,13,14.6,16.7,17.4,19.3,20.8
1950,20.9,21.5,22,19.1,15.3,13.5,14.2,14.6,16.7,16.5,18.6,21.4
1951,20.4,21.1,20.3,18.9,16.2,11.3,11.5,13.3,15.8,18.4,19.1,20.7
1952,22.4,21.9,21.1,18.6,15.9,14.4,13.7,14.9,16.4,18.7,19.6,20.4
1953,22.2,21.9,20.7,18.3,15.8,12.4,11.5,14,15.5,18.1,20,21.5
1954,21.4,21.9,19.8,18,15.4,12.2,11.7,13.5,17.1,18.4,19.5,20.8
1955,21.6,21.8,20.1,18.3,15.8,13.2,12.9,13.6,15.2,17.2,17.9,20.9
1956,20.9,22.1,22.2,18.9,15.6,13.2,13.6,15,15.8,18,20,20.3
1957,23.4,23.7,22,19.9,16,13.2,14.5,14.8,18.6,19.7,21.6,21.5
1958,23.6,22.4,21.3,20.1,17,12,13.5,14.5,17.3,18.3,21.5,21.8
1959,21.9,22,21.1,19.6,15.9,14.1,14,14.5,15.9,18.6,19.6,21.6
1960,21.4,22,21.7,18.1,15.2,13.1,11.8,15.6,17,19.4,20.2,21.2
1961,22.5,23,22.5,19.6,17.4,15,14.2,14.3,17.2,16.8,19.4,20.3
1962,21.7,22.6,21.3,19,15.4,13.3,13.6,15.6,17.6,19.6,20.8,22
1963,21.7,21.7,19.7,17.9,15,13.1,12.5,14.5,17.7,19.5,20.7,21.3
1964,22,22.3,22.4,18.2,15.8,11.6,11.9,14.5,17.1,18.6,19.4,21
1965,22.1,22.6,21,17.9,15.3,11.7,13.4,15.1,17,16.5,19.1,21.1
1966,23,21.9,20.7,18,15.5,14.3,13.4,14.9,16.6,17.4,19.9,21.8
1967,22.5,21.9,21.2,19.5,16.8,12.8,12.2,14.6,17.1,18.6,20,21.1
1968,22.6,21.6,20.6,17.6,16,11.1,13.1,14.7,16.5,17.6,18.4,21.5
1969,23.1,23.4,23.5,18.8,15.8,13.6,13.6,15,16.8,18.7,20.1,21.3
1970,23.6,22,20.9,18.4,16.5,13.6,13.6,15.7,17.4,17.7,20.6,22.5
1971,22.5,21.8,22.3,20.1,15.8,13.1,13.3,14.8,17.7,18.2,19.5,21.4
1972,23.2,21.9,21.4,19.9,15.6,12.3,12.8,14.4,17,19.1,19.4,22.1
1973,22.7,22.1,23,18.5,16.4,14.8,14.2,14.1,17,18.5,19.6,20.8
1974,23,23.1,22.2,18.3,16.3,13.1,13.8,14.7,16.5,18.7,20.5,22.4
1975,22,22.3,20.4,18.4,16.4,13.2,11.2,13.6,18.3,18,19.3,21.6
1976,22.4,22.4,21.7,18.4,15.6,13.2,12.6,13.6,16.9,18.8,21,21.9
1977,22.9,23.7,21.3,19.4,15.7,13.6,12.5,14.1,18.2,19.3,19.7,21.4
1978,23.2,23,23.3,18.8,15.8,12,14,16.2,16.2,19,20.6,21
1979,21.8,22.8,21.2,19.8,16,13.5,12.9,14.8,15.7,19.6,20.2,21.3
1980,22.3,22.6,21.7,18.4,16.2,12.3,12.1,14.9,17.7,17.7,21.3,23
1981,23.4,22.3,20.9,18.6,15.6,12,12.4,13.5,15.9,16.3,20,20.6
1982,22.5,22.9,21.1,18.6,16.2,12.6,13.8,15.1,16.8,17.6,18.9,21.4
1983,22.8,21.9,21.5,20.3,17.3,14.6,13.5,13.4,17.2,18.2,20.7,21.5
1984,21.7,21.5,21,18.5,16.4,12.8,14,14,17.2,19,18.9,21.1
1985,22.7,22.9,21.9,19.1,15.9,13.8,13.3,14.9,17.4,19.2,20.4,21.7
1986,22.2,21.8,21.3,19.7,16.3,12.8,12.8,15.1,17.1,18.3,19,21.8
1987,22.4,23.8,22.7,20.4,17.7,12.7,13,14.6,17.7,17.7,20.2,22.6
1988,22.7,23.3,22.9,19.7,16.2,12.6,13.8,14.9,16.6,18,18.8,20.7
1989,21.8,21.9,21.9,18.6,16.4,13.8,13.2,16.1,16.2,18.1,19.9,21.8
1990,21.8,21.6,21.2,19.5,16.2,12.9,13.9,14.2,15.6,18.2,18.7,20.8
1991,22.3,22.3,22.3,18.8,16.9,14.8,13.6,14.5,18.3,18.9,19.7,20.9
1992,22,23,21.8,19.9,15.8,13.9,13.9,13.7,18.6,20,19.9,22.3
1993,22.3,22.9,21.8,19.7,18.5,14,15.6,15.4,18,19.5,19.5,21.5
1994,21.7,21.8,21,19.3,16.1,13.1,12.2,14.3,16.7,17.2,19.8,20.8
1995,22.4,22.4,21.9,19,17.7,13.7,14.1,15.6,17.2,19.6,20.5,21.1
1996,22.7,23.1,21,18.1,16.6,13.2,13.3,15.2,17.6,19.3,20.5,22.4
1997,23.1,22.1,22.1,18.8,16.2,14.1,15.2,15.6,19.3,18.8,20.8,22.5
1998,22.5,23,22.8,19.9,17,13.7,14.7,15.2,17.9,19.2,20.8,21.8
1999,23.4,22.1,22.4,20,16.9,13.7,14.7,15,17.3,18,21.4,23.1
2000,22.9,24.2,23.5,20,15.8,15.1,13.1,14.4,17.1,19.1,20.3,21.7
2001,22.1,22.1,21.4,20.1,16.6,14.4,13.9,15.9,16.8,18.8,20.4,22.4
2002,21.9,21.9,21.2,19.4,16.3,14,13.4,16.3,17.4,18.2,19.1,22.4
2003,22.2,23.6,22,19.8,16.8,14.6,12.9,13.8,16.6,18.8,20.3,22.5
2004,21.6,23.4,22.7,19.8,16.1,13.4,13.7,16.2,16.8,19,21.8,23.1
2005,23.2,23.3,21.3,19.6,17.3,14.6,13.5,15.9,17.6,19.1,20.9,20.9
2006,23.4,23.5,21.8,19.5,15.5,13.2,14.1,15.2,16.4,19.4,21.1,23
2007,22.6,22.6,21.2,19.8,15.9,13.7,13.2,14.8,17.5,18.9,20.4,20.9
2008,22.3,22.5,21.8,17.7,16.8,12.6,14.6,15.4,16.7,18.3,20.8,22.1
2009,23.2,22.6,21,18.5,16.8,15,13.3,14.9,17.7,18.6,18.6,21.9
