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