1901,23.1,21.6,19.1,14.8,10.3,8.6,6.1,8,11.7,14.8,17.6,21.3
1902,22.4,21.5,19.2,15.9,10.2,7.1,4.9,6.7,10,14,16.6,20.5
1903,22,20.9,18.5,14.6,10.5,7,5.9,7.6,11,14.4,17.6,20.1
1904,22.9,21.2,18.8,15.5,10.5,7.8,6.7,8,10.8,13.9,17.6,19.9
1905,22.8,21.4,20.1,14.8,8.8,7.8,5.6,7.3,10.9,13.9,17.7,20.1
1906,22.7,22.3,19.9,15.6,10.7,5.4,5,7.5,10.5,14.9,18.2,20.1
1907,21.6,21.8,18.3,14,9.6,5.6,6,7.5,9.7,13.9,17.3,18.7
1908,21.5,21.9,19.3,13.6,9.9,7.5,5.9,7,9.7,14.7,16.7,19.8
1909,21.8,20.7,18.8,14.6,9.2,6.2,5.3,7,10,14.4,16.3,19.3
1910,21.2,20.9,18,14.4,9.7,5.3,5.7,7.3,10.7,15.1,17.9,20.8
1911,21.3,20.3,18.1,13.5,9.6,7,6.4,6.7,9.8,14.4,17.6,20.4
1912,22.7,20.8,18.7,14.9,8.5,6.9,6.4,7.4,11.1,14.7,16.8,20.1
1913,22.5,21.3,18.6,14.2,9.2,6.8,5.5,7.2,11.7,14.3,17.8,20.4
1914,22.1,22.4,19.1,14.2,10.1,6.3,6.8,7.4,9.8,14.1,15.6,20.3
1915,21.4,21.7,19.5,13.9,9,6.5,7,7.9,11.3,14.8,18.1,20.7
1916,22.1,21.7,18.3,15.1,10.6,5.8,5.4,7.8,10.6,14.8,17.9,20.1
1917,21.5,22.1,18.7,15,10,7.8,6.6,7.9,10.8,15.3,18.4,20.2
1918,21.4,22.5,18.9,15.1,9.1,7,5.1,7.8,9.6,14.6,16.4,21.6
1919,22.1,21.8,19.9,14.5,11.1,6.9,6.6,8.6,9.8,14.4,16.2,20.9
1920,22,21.9,18.9,15.6,10.1,7.1,5.3,8.8,11,13.3,17.7,20.3
1921,21.8,21.1,18.7,15.2,9.9,6.1,6.2,7.4,10.3,14.5,18.2,20.4
1922,21.2,21.3,18.1,14.6,10.6,6.1,6.9,7.7,11,13.9,17.5,20.9
1923,21.8,21.6,18.5,13.9,9.9,6.5,4.3,6.4,10.3,12.8,17.3,19.2
1924,22,20.9,18.6,15,9.7,7.5,6.3,8.1,10.8,15.6,17.4,20.8
1925,21.7,21,18.9,14.4,9.7,6.9,6.1,8.3,11.3,14.4,17.4,20.9
1926,22.1,22.3,18.4,14.4,10.3,7.2,5.2,8.1,10.3,14,17.4,20.7
1927,21.9,22.1,19.5,15.6,9.8,7.2,6.1,8.2,9.7,14.5,17.4,20.1
1928,21.1,20.6,18.4,14.4,10.1,6.1,6,8.5,11.4,15.2,17.9,19.6
1929,22,22,18.6,15.8,10.1,7.7,6.8,7.6,10.6,14.2,17.6,19.5
1930,21.9,21.8,18.6,15.4,10.2,8.3,5.3,7.2,11.3,13.8,18.5,20
1931,22.2,23.3,20,15.8,10.5,9.6,6.1,8.5,11.5,14.3,17,21.4
1932,22.4,22.5,19.4,15.5,11.1,8.7,8,7.7,10.9,15.4,17.7,20.1
1933,21.8,20.8,17.8,16,11.4,8.3,5.4,9.6,11.6,14.6,17.2,18.8
1934,21.9,20.6,18.8,16,11.1,7,7.3,9.8,11.8,14.5,18.5,20.9
1935,22.8,21.3,20.6,16.7,13.1,8.7,7.3,9.8,10.4,13.4,17.6,18.4
1936,21.6,23.4,19.7,16.3,10.6,7.3,8.3,8.5,11.1,14.6,19.7,18.2
1937,23.9,20.5,18,16.6,11.2,9,7.3,7.1,11.4,16.1,16.2,21.8
1938,19.8,22.2,18,15.3,11,7.6,6.4,8,11.2,14.5,17.2,20.4
1939,21.2,20.9,19.3,15.3,11.4,9.5,8.6,10.6,12.3,14.6,17.6,22.9
1940,22,22.7,18.6,15,11.5,9.7,8.6,9.1,12.3,15.4,17.7,19.6
1941,24.1,22.2,20.6,14,9.5,8.9,7.8,9.9,11.1,16.3,15.3,19.2
1942,22.3,21.3,18.2,15.8,10.6,7.3,6.4,7.7,11.6,15.1,18.7,22.1
1943,23.6,23.2,18.5,17.7,12.1,7.8,7.5,8,11.2,15.2,18.4,24
1944,23.4,23.8,22,18.1,11.1,9.1,7.3,6.4,11.4,13.3,18.4,22.2
1945,24.6,23.6,21,16.8,12.3,8.9,5.6,8.1,12.3,15.5,17.2,19.8
1946,20.9,19.8,19.4,17.1,11,10,8.1,9.7,11.6,15.7,16.5,20.5
1947,20.6,21.8,19.7,16.1,11.9,9.6,7,8.3,10.8,16,20.1,19.6
1948,22,22.5,18.7,15.4,12,9.2,6.2,7.1,11.5,15.3,19.1,20.2
1949,23.9,21.3,17.4,16.9,11.1,8,7.4,8.2,11.4,17.7,19.4,20.3
1950,23.9,22.7,19.5,15.3,10.3,8.5,7.2,8.3,10.1,14.3,17.5,19.7
1951,22,20.2,19.2,17.2,12.8,8.7,7.8,9.4,10.6,15.2,16.7,22.6
1952,23.6,23.7,18.9,17.3,11.5,6.9,8.5,8.2,12.9,16.4,19.3,23.2
1953,22.4,23.9,20.1,17,13.1,9.1,6.7,8.8,11.2,13.4,18.5,22.4
1954,22.3,22.4,22,16.1,10.6,8.1,7,9,10.9,15.1,18.7,21.1
1955,24.3,20.9,20.3,16.1,10.6,7.5,6,7.5,11.3,16.3,20.8,19.9
1956,19.8,22.5,18.2,16.7,9.3,6.6,7.8,8.4,10.6,15.9,21.2,24.2
1957,23,23.2,20.5,15.2,12.5,7.6,6.7,8.3,11.7,14.4,19.5,20.1
1958,22.4,21.6,20.5,15.1,9.2,7.5,9.3,7.1,10.5,16.8,17.5,20.7
1959,22.5,22.7,19.2,13.3,10.2,7.5,7.1,7.9,10.3,14.3,18.3,21.9
1960,24.8,23.5,20.8,15.6,10.6,7.6,5,8.1,10.9,14.2,18.4,21
1961,21.3,21.8,19.3,14.7,11.1,6.5,6.4,9,8.3,15.1,17.7,22
1962,23.1,23.9,21.2,14.3,11,8,6.2,8.6,11.4,17.2,19.6,22.5
1963,22.4,24.3,17.7,15,9.6,7.3,7.2,8.6,8.9,14.5,14.7,20.6
1964,23.4,20.7,17.1,14.8,9.5,6.5,6.3,8.2,10.4,16.7,18.3,19.3
1965,22.2,19.5,20.9,13.8,8.6,9.7,5.6,7.4,9.8,14.3,17.9,18.6
1966,22.4,20.2,18.3,14.8,11.8,7.7,5.9,8,10.5,13.2,18.4,18.3
1967,21.5,22,19.5,16,10.9,5.5,5.6,6.6,10.7,13,18.3,21.5
1968,24.4,21.2,18.1,16.3,13.2,8.9,9.2,9.8,11.8,13.2,18.8,18.6
1969,23.8,20.8,19.2,15.8,11,7.4,7,7.6,10.3,12.7,16.8,22.8
1970,21,22.3,19.4,16.5,10.4,7.1,7.5,7.3,11.5,15.8,18.1,18.5
1971,18.4,20.5,18.6,13.2,10.9,5.7,7.6,8,11.2,16.6,18.3,17.8
1972,23,22.6,17.1,16.9,9.7,7.3,6.5,7.6,9.7,12.1,18.1,21.9
1973,20.3,22,19.7,14.1,10.4,7.7,4.9,8,11.1,14,17.8,21
1974,19.1,20.6,18,16.6,10.9,6.5,6.2,7.7,11.1,16.8,17.5,20.5
1975,24.4,20.4,18.9,14.6,10.7,8.6,5.9,6.5,11.3,14.1,15.7,19.2
1976,20.6,22,17.2,14.6,11.3,6.1,5.2,7.8,11.6,14.5,18.7,19.3
1977,21.6,21.5,20,15.4,11.1,8.1,6.5,8.1,12.2,15.7,16.6,21.2
1978,21.5,23.2,19.1,17.6,11.4,8,8.3,7.9,11.2,13.2,18.2,22.8
1979,25.3,23.3,20.3,16.8,11.3,7.9,7.2,8.9,9.6,13.5,17.2,21.2
1980,24.7,21.3,20,12,10.1,7.5,6.5,8.8,12.4,16.1,18.1,20.7
1981,21.6,22.7,20.1,15,10.5,8.5,7.5,8.7,10.6,15.8,18.4,21.9
1982,24.5,21.4,20,17,11.6,5,6,8.9,11,13.5,17.1,22.4
1983,23.7,21.7,19.1,14.4,9.8,5.6,5.4,8.7,9.7,16.4,20.2,24.3
1984,22.7,20.3,19.2,14.5,8.2,4.5,4.5,7.4,11.5,12.7,17.3,19.8
1985,22.6,21.5,17.9,13.6,10.5,9.2,7.2,8.9,12.2,14.6,21.1,22.2
1986,21.5,21.3,18.2,13.7,9.9,7.2,7.2,8.2,10.8,17,17.1,21.9
1987,24.2,24,18.9,15.8,9.6,8.9,7.7,7.1,10.5,15.2,19.7,20.3
1988,22,25.4,19.1,15.5,10.5,8.3,5.1,7.2,11.3,14.1,19.3,20.5
1989,23.3,24.4,19.5,14.8,11.2,8.5,7,7.9,12.2,17.1,19.5,19.9
1990,22.6,23.6,19.5,13.7,10.2,7.9,7.2,10.2,11.2,16.2,18.9,21.5
1991,22.4,22.5,19.6,15.2,10.7,7.4,6.4,7.3,11.2,13.6,18.7,18.6
1992,23.3,21,20.9,14.8,9.7,6.7,4.5,8.8,11.3,14.3,18.9,20
1993,21.7,22.9,20.5,16.3,9.8,8.3,5.5,9.1,11.4,15.2,17.6,20.3
1994,21.5,21.6,20.2,15.1,11.7,9.6,6.9,7.9,11.5,15.1,18.3,21.1
1995,21.2,22.4,19,16,11.7,8.4,5.2,5.6,11.9,15.3,18.4,23
1996,21.6,21.9,21,14.1,11,5.5,7.4,9.3,12.8,15.5,18.2,20.5
1997,22.3,20.7,20.3,16.8,11.4,9.7,8.8,8,12.1,13.5,16.8,19.9
1998,20.9,22.6,18.6,15.4,13.2,7.1,7.8,8.8,10.8,16.5,18.4,21.9
1999,25.5,23.2,18.1,14.3,11.3,6,5.9,9.1,11.9,15.9,19.2,21
2000,23,20.8,18.4,15.3,10.3,7.3,5.6,7.7,9.3,15.5,17.2,20
2001,21.8,22.1,18.7,14.9,10.1,8,6.1,8.5,11.3,15,17.5,24.1
2002,24.2,23.2,16.9,13.7,10,5.7,7.7,9.4,10.8,14,16.9,20.9
2003,21.9,22.2,22.1,14.3,11.1,9.9,7,8.7,10.9,14.9,17.7,18.1
2004,23.7,24.1,20.1,13.8,10.5,8.6,6.4,9,11.4,14.1,18.6,20.5
2005,21.8,25.7,18.2,14.1,8.6,6.3,7.8,7,11.5,14.5,18.2,21.5
2006,22.9,23.5,18.7,15.8,10.4,8.5,7.3,9.1,11.6,14.7,18.6,19.3
2007,23.7,20.8,19.7,14.8,9,6.4,5.5,6.1,10.6,14,17.8,21.7
2008,24.5,25.6,21.2,15.5,10.2,7.5,8,7.4,12.8,15.8,20.6,24.2
2009,25.4,22.3,21.2,16.8,10.5,8,6.6,9.1,11.6,14.2,14.3,19.8
