1901,23,25,21,15.2,12,7.2,6.8,9.3,13.5,15,21.4,22.8
1902,23.9,22.9,20.1,16.5,11.8,8.8,8,8.1,11.9,16.7,21.7,21.7
1903,23.1,22.8,21,14.5,11,7.3,7.2,8.5,12,15.1,19.4,20.7
1904,22.2,21.8,18.9,17.2,11.9,7.4,7.1,8,9.3,15.6,18.1,22.7
1905,25.7,21.8,20,16.1,11.3,7.8,6.9,8.1,9.1,11.9,17.1,21.3
1906,25,25.5,18.1,15.5,11.3,9.3,7.2,8.7,11.9,14.9,16.2,20.8
1907,23.3,22,18.5,13.8,11.2,8.3,6,9.1,12,15.1,19.4,22.2
1908,26.9,23,19,15,10.2,5.8,6.5,7.9,10.4,14.4,20.2,22.5
1909,22.9,21.8,19,12.1,9.3,8.2,6.2,8.5,10.6,15.2,18.8,19.9
1910,22.9,23.3,20.1,16.4,11.4,8.4,7.3,9.5,11.6,13.3,18.4,19.9
1911,21.5,21.2,17.8,12.5,11,6.3,6.5,9.1,11.4,14,19.6,19.7
1912,22.3,25.1,20.7,14.1,10.4,8.5,7.7,9.6,10.2,14.1,16.6,20.3
1913,22.2,23.3,17.6,15.6,10.2,7.2,6.8,8,10.7,15,16,22.3
1914,23.2,25.3,21,14.3,11.4,7.5,6.6,8.7,12.3,18.2,21.6,23.2
1915,23.3,24.1,19.9,15.6,12,7.6,7,9.4,11.8,12.9,16.3,21.3
1916,23.7,23.3,19.3,13.6,10.2,7.6,7,7.8,12.2,14.4,15,20
1917,23.1,20.6,18.4,12.9,9.6,7.3,6.9,8.5,11.3,13.9,16.3,22.1
1918,22.6,21.4,18.8,14.9,11.7,7.8,6,9.1,11.3,13.2,18.3,20.5
1919,24,24.6,17.9,16.3,11.9,7.8,6.1,8.8,13.1,15.7,21.3,22.5
1920,22.1,23.8,18.1,14.2,9,7.3,7.1,7.7,11.3,15.6,18.1,21.2
1921,22.9,23.8,18.7,14.7,12.5,8.4,8,7.7,11.9,13.7,19.2,21.1
1922,21.5,23.7,18.7,16.1,11.7,8.1,7.5,7.7,11.1,14.7,18.7,21.3
1923,21.5,24,20.3,16.6,11.2,8.4,7,8.1,9.9,13.8,15.1,21.4
1924,20.1,19.9,19,12.2,10.2,7.1,6.6,8.8,10.8,13.6,16.5,18.9
1925,21,20.2,18.3,15.3,12.1,8.1,6,7.9,9.6,14.4,18.3,21.4
1926,22.1,23.3,20.4,14.5,9.5,8.3,7.7,9,12.1,15.3,17.8,20.5
1927,23.6,21.7,18.9,14.3,9.6,6.7,6.7,7.7,10.9,14.8,19.4,21.2
1928,21.9,22.9,20.1,15.7,9.5,6.7,7.3,9.2,12.6,13.2,18.3,22
1929,23.3,24.2,18.8,13,10.3,6.8,5.6,7.6,10.4,14.3,16.8,18.9
1930,22.5,25.7,20.6,14.4,11.4,8.8,8.1,8.4,10.4,15.3,16.8,20.9
1931,19.8,22,18.8,13.8,11.4,8.1,7,8,10.5,13.5,16.7,21.1
1932,24.9,20.6,18.6,13.8,11.1,6.8,6.6,8.8,12.1,12.5,17.7,19.7
1933,21.2,21.1,19.8,14.6,10.8,8.7,8,7.4,11.2,15.5,18.3,19.9
1934,23.1,21.9,20.7,14,11.4,7.3,8.4,9,11.7,13.3,17.9,19.2
1935,21.8,21.4,18.3,14.3,9.8,7.4,7.2,9.9,11.2,14.5,18.1,20.4
1936,22.1,21.9,19.2,12.9,10.6,6.4,7.5,9.2,9.9,13.3,16.9,20.6
1937,20.1,22.7,19.3,13.5,9.9,7.8,6.2,10.4,12,16.5,19.8,21.9
1938,22.9,21.8,21.6,16.5,13.6,7.8,7.3,9.1,11.6,16.5,20.7,21.5
1939,27.1,25.4,19.5,15.2,12.6,8.2,5.9,8.7,10.7,13.3,16,18.7
1940,22.9,21.1,22,14.2,9.5,6.9,7,8.2,11.2,16.1,17.4,22.9
1941,22.4,21.5,17,16.7,10.3,7.9,7.4,8.6,11.4,12.8,18.5,21.3
1942,24,22.4,20.1,15.5,12.2,9.1,7.6,9.5,11.3,14.9,18,23
1943,22.2,23.3,21.5,13.2,10.3,7.2,6.8,7.6,11.3,14.5,16.5,20.7
1944,23.8,21.2,18.8,12.3,10.5,7.2,7.2,8.7,12.1,15.2,19.8,20
1945,23.2,21.3,17.5,14.6,10.9,10.1,6.8,9.5,10.3,14.1,17.7,22.8
1946,24.5,22,16.6,13.7,10.3,6.9,8.2,8.4,10.5,13.5,18.2,20.3
1947,23.1,23.9,18.7,14.7,12.3,7.9,7.7,8.2,11.5,13.3,16.1,19.6
1948,21.4,22.3,17.1,15,9.8,8.3,6.3,9.1,12,12.9,16.6,20.9
1949,22,20.7,19.6,13.7,10.6,7,7.6,8.8,11.8,14.6,16.7,19.9
1950,22,21.4,19.5,14.8,11.3,8.6,9,9,12.1,14.1,17.4,21.5
1951,23.8,22.8,20.5,12.4,11,10.1,7.4,8.2,12.3,13.6,15.6,20.5
1952,23.7,22.5,20.6,14.3,10.2,8.6,6.7,9.4,10.8,13.9,15.3,19.8
1953,22.5,21.6,20.5,15,11.7,7.8,7.6,8.7,10.9,13.4,15.9,20.3
1954,24.3,21,17.4,16.2,10.5,8.4,8.1,9.5,11.9,15.9,18,21.2
1955,23.7,22.6,20.5,15.8,10.6,8.7,7.3,9.6,12.1,13.9,15.3,18.9
1956,21.5,24.1,20.6,14.1,11,8.1,7.9,7.7,10.7,12.5,13.8,18.3
1957,22.3,22.7,18.7,14.4,10,11.1,7.1,9.7,11,14.1,17.4,22.2
1958,22.5,22.5,18.6,16.7,13.2,8.2,7.7,9.9,10.7,13.3,19,20.1
1959,26,23.3,19.8,15.2,10.6,9.3,7.9,10,11.4,14.4,21.4,19.7
1960,25.7,21.8,20.3,14.9,10.1,7.6,8.4,8.2,11.2,13.9,15,21.7
1961,24.2,22.8,20.2,16.4,10.3,9.1,7.9,9.2,11.6,16.7,19.2,21.6
1962,23,21.5,20.4,15.5,10.2,9.5,8.2,8.9,11.6,12.7,17.7,21.4
1963,22.8,22.1,21.2,15.2,13.2,9.4,7.6,9.3,11.7,16.7,17.3,22.2
1964,21.5,22.4,20,16.5,10.3,9,7.7,9.3,11.2,12.6,18,17.9
1965,21.8,23.8,19.4,13.4,11.5,7.7,6.9,9.5,13.1,16.6,16.7,22.7
1966,24.5,21.9,19.5,13.9,10.3,7.3,6.5,8.6,11.1,13.8,17.5,20.3
1967,22.6,23.6,19.2,16.5,11.7,10.7,8,9,11.2,16.4,18.4,20.1
1968,24.9,26,22.4,17.1,10.6,8.1,7.1,9.1,10,13.4,16.5,20.9
1969,25.1,24.2,20.2,14.8,10.6,7.7,8.4,9.9,9.4,15.7,17.4,19.1
1970,21.3,23.9,18.4,15.5,10.4,8.8,7.5,8.6,9.8,14,17.2,21.1
1971,23.5,23.2,21.9,16.6,11.3,7.7,6.8,8.4,11,13.2,16.4,20.5
1972,22.3,21.9,18.2,14.6,12.1,8.5,7.9,10.3,11.8,15.9,18.3,23.2
1973,25.9,23.9,18.7,15.7,11.4,8.6,8.7,9.2,12,15.5,17,21.8
1974,24,22.4,21.9,16.2,13,8.6,7.8,9.1,10.5,13.8,15.7,19.6
1975,21.3,23.7,18.4,15.1,12.2,8.9,10.1,9.2,13,13.8,18.3,23.2
1976,22.6,24.4,20.5,15.3,11,8.8,7.6,9.2,11.8,13.7,16.8,20.1
1977,23.6,25.3,19.2,13.1,11.8,8.2,6.8,10.3,10.5,16.1,18.6,21.7
1978,23.1,23.8,21.9,15.4,13.4,9.3,7.4,8.5,11.8,14.2,17.7,19.5
1979,26.8,24.8,21.4,14.3,11.1,10,7.3,8.8,11.1,14.3,18.7,21.5
1980,22,23.2,19.9,16,13,8.1,8,9.3,11.7,15.4,19.7,22.9
1981,27.2,25.1,18.9,16,12.4,8.8,8.2,8.9,12.7,15.4,17.9,21.3
1982,25.3,25,21.1,15.3,11.2,7.2,6.1,10.9,11.5,14.5,20.8,22.7
1983,22.6,26.9,22.4,13.9,12.8,8.2,7.7,9.7,11.7,15,17.1,21.7
1984,21,22.1,17.7,15.1,11.3,9,7.6,10,10.9,14.6,18.9,19.5
1985,22.5,23.2,21.6,16,12.1,7.5,7,9.3,10.9,15,18.1,19.2
1986,20.9,21.8,22.3,15.8,12.2,7.2,7.5,9.6,11.6,12.9,16.8,19.1
1987,21.2,23.2,18,16,11.7,9.6,7.3,10.2,12.1,14.1,19,21.1
1988,25.8,22.3,20.5,17.6,13.7,9.2,9.3,9.7,12,14.6,17.7,22.2
1989,21.6,23.3,21.5,16.5,13.4,8.5,7.5,8.1,10.8,13.7,18.6,21.4
1990,24.1,22.6,21.5,17.1,12.4,8.6,9.2,9.4,12,15.1,18.7,22.6
1991,25,24.9,20,14.9,12.2,11.6,8.2,8.7,11.1,16.1,17.3,20.7
1992,21.3,22.2,21.2,16.3,12,8.8,7.6,8,10.1,14.7,15.4,20.6
1993,23.6,23.7,19,16.5,11.7,8.4,9.6,10.2,12.4,13.4,17.2,19.9
1994,22.1,23.7,17.7,15.2,11.9,9.6,8,8.1,10.3,15.2,18.4,24.2
1995,23.5,23.2,18.7,12.7,12.2,9.2,7.5,10.3,11.2,14.6,17.4,19.2
1996,22.5,20.4,19.3,12.9,11.8,9.1,8.2,9.7,11.3,15.2,15.9,19.8
1997,23.9,26.8,18.9,14.9,12.4,8.8,6.9,8.4,12,15.2,20.3,22.9
1998,25,23.3,21.1,15.5,12,8.9,7.5,10.6,12.8,13.5,17.3,22.3
1999,26.8,23.8,20.1,13.7,12,9,8.7,9.9,13.4,15.7,16.4,20.5
2000,21.3,25.1,21.4,15.9,10.8,8.3,8.1,9.2,12.4,14,20,22.2
2001,26.8,25,19.4,15.5,11.2,9.4,8.8,9.7,13.6,13.4,17.4,19.7
2002,23,21.4,20.1,17.2,11.9,9.2,8.3,9.4,12.4,15.7,21,22.7
2003,25.3,25.3,19.9,16.2,12.6,9.8,8.6,8.8,10.6,12.5,18.6,23.1
2004,22.8,25.1,20.7,16.1,10.6,9.1,7.8,9.7,11.3,15,18.2,20.9
2005,24,20.9,19.2,18.1,12.1,10.7,9.1,9.4,11.8,14.9,18.7,21.5
2006,27,24.1,21.6,13,10.2,7.1,8.6,8.9,12.6,16.5,19.7,22.1
2007,24.9,25.5,21.3,16.4,13.4,7.4,7.3,10.3,11.5,16.6,20.7,22
2008,25.3,21.2,21.2,14.1,11.2,10.5,7.9,8,12.2,16.5,18.3,20.4
2009,25.6,24.9,20.6,15.1,12.1,9.4,8.5,10.1,12.2,15.1,22.4,22.6
