1901,21.3,19.5,17.7,14.2,10.1,8.3,5.9,7.8,10.8,13.2,15.9,19.1
1902,20.1,19,17.8,15,9.6,6.9,4.5,6.6,8.8,12.4,14.7,18.5
1903,20,18.5,16.8,13.7,10.4,7.2,6.1,7.3,9.6,13,15.6,18
1904,20.8,19,17.4,14.4,9.8,7.5,6.7,7.6,9.2,12.2,15.7,18
1905,20.9,19.4,18.8,13.8,8,7.8,5.5,6.7,9.7,12.3,15.5,18
1906,20.5,20,18.3,14.5,10.4,5.5,4.7,7.2,9.6,13.3,16,18.3
1907,19.2,19.4,16.7,12.9,9.1,5.7,6,7.2,8.8,12.2,15.2,16.4
1908,19.4,19.5,17.5,12.2,9.4,7.5,5.8,6.7,8.5,13.2,14.8,17.3
1909,19.5,18.4,16.9,13.2,8.6,6,5.2,6.5,8.9,12.7,14.2,17.3
1910,18.9,18.7,16.8,13,9.2,5.3,6.1,7.1,9.9,13.6,15.9,18.9
1911,19,18.1,16.7,12.3,9.2,7.4,6.5,6.4,9.1,12.9,15.7,18.3
1912,20.7,18.5,17.2,13.8,7.9,6.9,6.5,7,9.8,13.1,14.5,17.8
1913,20.5,18.8,17.2,13.1,8.6,6.6,5.4,6.9,10.9,12.5,15.7,18.3
1914,19.7,20.1,17.7,13.3,9.8,6.1,6.6,7.1,8.9,12.6,13.8,18.2
1915,19.4,19.3,18.2,12.9,8.4,6.6,6.9,7.5,10.4,13.5,16.2,18.4
1916,20,19.7,16.9,13.9,10.3,6.5,5.7,7.8,9.7,13.2,15.9,17.9
1917,19.3,20,17.1,14.2,9.9,7.8,6.8,7.5,9.8,13.8,16.7,18
1918,19.2,20.3,17.2,13.7,8.6,7.3,5.1,7.3,8.8,13.2,14.4,19.4
1919,19.7,19.7,18.6,13.2,10.5,7.3,6.6,8.6,9,12.7,14.1,18.8
1920,19.9,19.8,17,14.5,9.6,7.3,5.4,8.6,10,11.7,15.6,18.2
1921,19.7,18.9,17.4,14.2,9,6.5,6.5,7,9.5,13,16.2,18.1
1922,19,19.2,16.7,13.7,10.4,6.4,6.9,7.6,10.1,12.6,15.6,18.9
1923,19.7,19.4,16.8,12.7,9.9,6.4,4.4,6.2,9.4,11.6,15.2,17
1924,19.8,18.8,17.2,14.1,9.8,7.7,6.4,8.1,10,14.1,15.5,18.4
1925,19.4,18.7,17.2,13.2,9.5,7.1,6.3,7.9,10.5,12.7,15.2,18.7
1926,19.6,20.1,16.5,13.1,10.1,7.5,5,7.9,9.3,12,15.3,18.5
1927,19.5,19.6,17.9,14.4,9.6,7.3,6.2,7.8,8.8,13,15.4,18.1
1928,18.8,18.6,16.7,13.4,9.9,6.1,5.8,8.6,10.8,13.8,15.7,17.4
1929,20,20.1,17.3,14.6,10,8,6.9,7.5,9.5,12.7,15.1,17
1930,19.5,19.9,16.7,14.4,9.7,8.5,5.1,7,10.6,12.3,16.7,17.7
1931,20.1,21,18.3,14.8,10.4,9.6,6.1,8.4,10.6,12.5,15.1,18.9
1932,19.9,20.2,17.7,14.2,10.7,8.7,7.6,7.6,9.8,13.8,15.5,17.8
1933,19.6,18.3,16.2,14.8,10.9,8.4,5.9,9.3,10.8,12.9,14.9,16.7
1934,19.5,18.4,17.1,15.2,10.5,7,7.2,9.4,11.2,13.2,16.5,18.7
1935,20.2,19.1,18.7,15.4,12.6,8.9,7.5,9.7,9.6,11.9,15.3,16.1
1936,19.2,21.4,18.2,15.1,10.1,7.5,8.5,8.6,10.1,13.1,17.7,16.1
1937,21.5,18.1,16.5,15.4,10.4,8.9,7.3,6.7,10.6,14.7,14.5,19.7
1938,17.8,20,16.5,14.6,10.7,7.6,6.4,8,10,12.9,15.3,18.4
1939,18.8,18.9,17.7,14.1,10.9,9.2,8.5,9.7,11.1,12.8,15.3,20.8
1940,19.6,20.7,17,13.7,11,9.6,8.5,9.1,11.2,13.7,15.8,17.4
1941,21.7,20.3,19.2,12.8,9,8.9,7.8,9.8,10.1,14.4,13.5,17.2
1942,19.8,19,16.6,14.8,10.1,7.8,6.5,7.6,10.6,13.4,16.9,20
1943,21.2,20.6,17,16.8,11.8,7.9,7.6,7.9,10.2,13.4,16.4,22
1944,21.1,21.3,20.4,16.8,10.9,8.7,7.2,6.3,10.1,11.6,16.5,20
1945,22.5,21.6,19.3,15.3,11.6,8.9,5.7,7.7,11.2,13.6,15.1,17.7
1946,18.7,17.4,17.8,16.1,10.5,10,8.2,9.4,10.2,14,14.3,18.1
1947,17.8,19.4,18,15,11.2,9.4,7.2,8.3,9.8,14.7,18.4,17.5
1948,19.7,20.1,17.1,14.6,11,9,6.4,6.8,10.4,13.9,17.1,17.8
1949,21.6,19.2,15.7,15.8,10.4,8,7.6,8.2,10.6,16,17.3,18.2
1950,21.4,20.4,17.9,14.1,9.6,8.5,7.4,7.4,9.3,12.8,15.3,17.4
1951,20,19.2,17.7,15.5,12.5,9.2,7.4,9,9.4,13.9,15.5,20.7
1952,21.1,21.9,17.9,16.5,11.3,7.6,8.2,8.4,12.1,14.8,17.7,21.1
1953,20.7,22.3,18.5,16,12.7,9.4,7.2,9.2,9.8,12.7,16.9,20.9
1954,20.4,20.7,20.3,15.6,10.9,9.6,7.4,9.1,10.2,13.7,17.5,19.6
1955,22.3,19.5,18.3,14.6,9.9,7.9,6,7.7,10.6,14.7,18.9,17.9
1956,18.1,20.5,17.2,14.5,9.1,7.4,8,9.1,10.2,15,19,21.2
1957,20.7,21.8,19,14.8,12.2,8.3,6.9,8.7,11.5,13.5,18.2,17.9
1958,20.3,19.8,19.5,14.2,9.4,8.1,9.4,7.3,10.1,15.8,15.9,19.3
1959,20.9,21.3,18.1,12.7,10.4,8.3,7.3,8,9.6,13.3,16.9,20.4
1960,23,21.7,19.6,14.7,10.7,8.3,5.6,8.3,10.6,13.1,16.7,19.1
1961,18.9,19.4,17.5,13.8,10.7,6.7,7.5,9.5,8.9,13.5,15.8,19.7
1962,20.9,22,19.5,14,10.8,8.9,7.1,8.9,10.6,16.1,17.6,20.3
1963,20.2,22.5,16.4,13.8,10,7.4,7.4,8.7,8.7,13.9,13.1,18.5
1964,20.9,18.1,16.4,14,9.9,6.6,6.7,8,9.5,15.5,16.6,17.4
1965,19.7,17.1,19.1,12.8,8.3,10.1,5.9,7.4,8.7,12.3,15.8,16.2
1966,20,18.1,16.8,14,11.6,8,6,8.1,9.5,11.5,16.7,16.5
1967,18.8,19.5,17.9,15.3,10.5,6.1,6.1,6.2,9.6,12,16.1,19.2
1968,21.4,18.1,16.3,15.2,12.9,8.7,8.7,9.4,10.6,11.7,16.3,16.4
1969,21,18.1,17.7,14.5,10.1,7.7,7.2,7.1,9.1,11.4,15.2,20.6
1970,19,20.1,18.1,14.9,9.9,7.2,7.5,7,11.1,14.2,16.1,16
1971,16.3,17.7,16.7,12.7,10.6,5.8,7.2,7.4,10.1,14.8,15.6,15
1972,20.4,19.8,15.4,16.2,9,7,5.8,7.5,8.8,10.8,16.5,20.2
1973,18,19.7,18.5,13.6,10.4,7.9,5.2,7.8,10.3,12.4,15.7,19
1974,17,18.9,16.2,15.4,9,6.6,6.6,8,10.3,15.2,16.8,18.8
1975,22.9,18.3,17.6,13.7,10.7,9,6.2,6.9,10.1,12.4,13.6,16.6
1976,17.9,19.7,16.1,13.9,11.2,5.8,5,7.7,10.9,12.8,16.5,17.4
1977,19.3,19.9,18.4,14.4,11,7.7,6.5,8,10.9,13.8,14.3,19.9
1978,19,20.6,18,16.9,11.4,7.9,8.4,7.8,10.3,11.7,16.3,20.6
1979,23.2,21.2,18.7,16.2,11,8.6,7.4,8.7,9,12.1,15.5,19.3
1980,22.1,18.8,18.5,11,10,7.8,6.5,8.6,11.5,14.8,16,18.5
1981,19.3,20.4,18.4,14.4,9.8,8.6,7.9,8.6,9.7,14.5,16.5,19.7
1982,22.3,19,18.3,16.2,11.1,5.1,6.2,8.6,10.6,11.8,15.1,20.1
1983,22,19.5,17.5,13.3,10,6,5.1,8.8,8.6,14.8,17.8,22.2
1984,20.2,18.2,17.8,13.6,7.4,5.2,4.5,7.3,11.2,10.9,15.9,18.4
1985,21,19.5,16.1,12.4,9.7,9.5,7.7,8.8,11.2,13.4,19,20
1986,19.5,19,16.5,12.5,9.3,7.3,7.2,7.9,10,15.6,15,19.7
1987,21.9,21.6,17.5,14.2,9.4,8.9,7.8,7.3,9.8,13.8,17.7,18.2
1988,19.6,22.9,17.5,14.3,10.6,8.4,5.5,7.1,10.7,12.4,16.9,17.9
1989,20.5,21.7,18,13.8,11,8.8,7.2,7.9,11.4,15.5,17.3,17.6
1990,19.9,21.5,18.1,12.5,9.8,8,7.4,9.9,10.3,14.4,16.4,19
1991,19.9,20.2,17.6,13.9,10.2,7.6,6,7,10.3,12.4,16.6,16.6
1992,21,18.6,19,13.4,8.6,6.5,4.9,8.5,10.1,12.2,17.3,17.9
1993,19.3,20.5,18.8,14.9,9.3,8.3,5.6,8.6,10.4,13.7,15.7,18.1
1994,19.7,19,18.5,13.7,11.3,9.7,6.8,7.7,10.4,13.6,16.1,18.9
1995,18.8,20.3,17.4,14.9,11.8,7.7,4.9,5.4,10.7,13.4,16.1,21.4
1996,19.3,19.7,18.9,13.2,10.9,5.6,7.7,9.2,12,13.9,15.9,18.7
1997,19.9,18.2,18.5,15.1,11.1,9.4,9,7.6,11.1,12.1,15.2,17.9
1998,18.4,21.4,17.2,14.6,13.5,8.2,7.9,8.6,10.2,14.6,15.9,19.5
1999,22.7,20.5,16.9,13.6,11,6.1,5.7,9.1,10.9,14.7,17.4,18.7
2000,20.7,18.5,16.8,14.1,10.2,7.4,5.6,7.8,8.6,14,15.1,17.6
2001,19.2,19.9,16.3,13.8,9.4,8,6.1,8.6,10.3,13.3,15.7,21.9
2002,22,20.7,15.4,12.7,9.9,6.1,8,9.2,9.8,11.8,14.6,18.8
2003,19.4,19.8,20.2,13.3,10.7,8.9,7,8.9,10,13.2,15.2,15.7
2004,22.4,22.2,18.7,12.5,10.4,9,6.4,9.1,10.3,12.7,16.9,18.3
2005,19.5,23.8,16.5,13.1,8.2,6.5,8.3,6.7,10.9,13,15.9,19.4
2006,20.5,21.4,17.1,14.7,10.2,8.4,6.9,8.6,10.5,12.6,16.6,17
2007,21.4,18.7,18.4,13.7,9.2,6.3,5.4,6.3,10,12.2,15.3,19.4
2008,22.3,23.5,19.4,14.3,9.9,7.6,7.7,6.8,10.8,14.2,18,22.4
2009,23,19.7,19.1,15.6,9.5,8.2,6.7,8.6,10.8,12.2,12,17.7
