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