1901,20.9,18.7,18,17,13.5,10.7,9.4,10.8,12.3,14.5,18.2,19.3
1902,18.7,18.3,20.2,17.6,13.7,10.4,9.4,11.3,12.5,13.4,16.7,18
1903,21.2,19.3,17.2,14.3,13.1,11.6,9.7,10.8,11.5,12.9,16.3,17.5
1904,19.2,18.9,18.3,16.9,12.2,11.1,9.5,10.8,12.2,13.1,17.3,19.5
1905,19.3,18.6,17.5,15.7,13.5,9.7,9.7,9.6,11.8,13.1,17,20.6
1906,21.3,20.5,19.2,17.6,14.2,11.6,9.7,10.4,10.8,14.3,15.9,20.1
1907,18.6,20.8,17.8,15.9,13.1,11.4,10.7,11.6,12.7,13.6,15.3,18
1908,20.3,19.6,17.6,15.2,12.6,9.4,9.8,9.7,11.2,13.9,17,20.2
1909,19.8,19.5,18.4,14.7,12.8,10.9,9,10.4,12.4,14,16.4,20.2
1910,20.6,19.7,18.9,17.7,13.1,10.6,9.6,10.9,12.6,12.1,16.2,18.1
1911,20.9,19.3,17.7,16.3,12.3,10,10.3,10.5,11.8,14.1,18.9,18.7
1912,20.9,22.3,20.4,16.8,14.3,10.9,10.5,11.3,11.6,14.5,16.3,20.5
1913,19.3,20.4,17.9,16.8,13.3,11.8,10.5,11.1,12.7,14,17.6,18.3
1914,20.6,20,18.9,15.4,13,11.2,9.9,12.2,14.1,17.2,16.9,19.6
1915,19.7,19.8,17.9,16.9,14,13,11,11.2,11.1,14.2,18.1,19.9
1916,19.1,20.2,19.3,15.2,14.3,10.3,9,10.2,13.6,13,16.5,18.1
1917,19.4,18.7,17.3,15.4,12,11,10.5,10,11.1,12.5,16,17.5
1918,20.3,19.2,17.6,17.4,13.4,12,10.4,10.8,14,13.8,18.8,19.4
1919,20.4,20.4,20.6,16,12.9,11.6,12.3,11.2,11.3,13.1,17,18.7
1920,20.7,19.2,18.7,15.5,13.2,11.4,9.4,10.2,12.9,14.8,18.3,19.1
1921,20.7,23,20.6,16.5,15,12.1,11.7,11.6,12.5,14.2,16.1,19
1922,20,20.7,19.9,16.6,12.7,11.1,9.2,10.9,11.8,14.4,17.5,16.9
1923,19.7,21.9,20.2,17.2,13.8,11,10.1,11,11.7,14.2,18.4,18.7
1924,19.1,19.3,17.3,17.7,14.2,11.6,10.9,10.4,12.4,12.7,16.2,19
1925,18.4,18.5,19.1,16.6,13.4,10.8,9.3,10.2,12,12.9,18.9,20.4
1926,21.7,20,17.8,15.5,12.7,10.7,10.8,10.1,13.1,14.8,17.9,18.3
1927,19.3,19.5,17.3,17.3,12.4,10.5,9.8,11.1,13,14.5,18.4,20.2
1928,19.3,19.3,18.8,16.8,13.1,11.4,10.1,11.4,12.5,13,18.4,19.7
1929,19.2,20.6,17.4,15.8,12.8,10.6,9.6,10.6,12.6,14.1,16.4,19.2
1930,21.1,21.2,20.7,16.1,14.6,13,10.4,11.4,13.2,14.5,17.6,19.1
1931,20.4,18.8,19,16,11.6,9.2,11.2,11.1,11.8,13.9,15.8,20.8
1932,22.1,20.6,18.4,16,14.4,11.3,11.3,9.7,12.6,13.3,17.1,19.1
1933,19.5,22.6,19.3,16.6,13,12.2,10.2,10.5,13,14.1,16.8,19.7
1934,22.2,22.5,19.6,15.1,15.7,11.1,10.1,11.3,12.5,12.9,15.2,18.7
1935,20,19.5,18.3,15.7,14.1,10.7,10.3,10.6,11.8,13,17.5,18.9
1936,20.1,20.2,20.8,16.6,12.8,10.6,9.8,11.5,13.6,14.3,18.9,20.1
1937,20,20.9,19.2,17.5,13.7,10.7,9.9,10.1,12.6,15,17.2,18.7
1938,19.2,19.7,19.2,17.4,13.7,10.5,10.6,11.2,13.8,14.3,18.5,20.5
1939,20,20.4,19.1,16.7,13.6,10.7,10.2,10.4,12.8,14.1,15.7,19.4
1940,19.8,21.5,20.6,15.4,13.1,12.5,10.7,12,13.3,15.4,17,18.8
1941,20.3,20.6,18.3,16.3,13.7,12.2,11.2,12.3,11.6,13.3,17.6,20.5
1942,19.8,19.3,18.3,16.1,13.7,10.8,9.6,10.8,11.9,13,17.2,19.3
1943,19.7,19.1,19.6,15.1,12.9,11.7,8.9,9.8,11.8,13.9,16.8,18.6
1944,21.1,20.7,19.1,16,12.1,11.9,10.8,11.3,12.8,16.1,18.5,17.9
1945,20,20.4,19.6,19.2,14.9,12.4,10.3,11.2,12,14.8,17.1,19.4
1946,19.9,18.5,18.1,17.5,13.9,10.9,11.1,10.5,13.7,15.5,15.7,19.7
1947,20.8,21.2,19.4,16.4,13.6,12.7,10.4,10.7,12,13.3,15.9,18.8
1948,21.6,21.1,20.9,15.3,13.7,11.3,10.6,12.1,12.7,14.7,16,18.2
1949,20.7,20.3,18.8,17.9,13,11.8,12.2,12.1,12.2,13.5,16.4,20.3
1950,20.7,20.6,19.9,17.9,14.5,11.7,10.7,11.5,12.8,13.7,16.3,19.8
1951,20.9,20.2,19.6,15.5,12.4,11.7,10.1,9,13.5,14.7,17.8,18.9
1952,20.3,19.6,19.2,15.7,12.6,12.5,9.2,11.3,11.3,13,15.7,17.5
1953,20.3,20,20.4,17.1,14,11.3,10.1,10.2,12.7,13.9,15.8,17.9
1954,21.4,20.1,19.9,14.7,12.5,10.8,10.8,10.8,12.9,15,16.5,20
1955,20.6,21,19.4,15.1,12.1,10,9.8,10.3,11.6,12.6,15.8,17.8
1956,22.1,21.8,19.8,14.6,12.6,9.4,9.7,9,11.7,12.7,16.5,19.1
1957,21.4,20.7,19.4,16.2,13.8,13.1,9.7,11.6,12.5,16,18.4,20
1958,21.5,21.1,20.4,17.4,14.3,11.6,9.7,10.8,11.4,13.1,17.2,20.3
1959,21.6,20.2,20.8,17.3,15,12.8,11.8,12.4,12.2,15.2,16.7,17.4
1960,19.2,20.2,17.9,14.4,11.9,10.7,9.6,10.1,12,15.2,16.1,19.5
1961,22.6,22.1,21.5,15.5,14.4,12,10.7,11.3,14.1,15.6,17.6,19.8
1962,21.5,21,19,17.7,14.9,13.1,10.5,12.4,12.7,13.7,18.1,20.6
1963,21,20.5,19.9,16.1,14,11.7,10.3,11.4,13.4,17,17.9,21.1
1964,20.9,20.1,20.6,14.9,13.4,13.2,11,11,11.6,12.5,16.3,17.7
1965,22.6,21.4,19.7,18.5,13.4,11.6,10.9,10.3,12.5,16.3,16.5,21
1966,21,20.1,20.6,15.4,13.9,10.7,10.9,10.6,11.3,14,18.3,18.7
1967,21,20.9,18.7,18,13.9,13,10.3,10.5,12.8,16.6,17.8,20
1968,21.7,20.1,17.8,14.9,11.1,11.6,10.3,9.6,11.6,14.4,16.1,19.7
1969,21,20.3,19.3,16.2,13.8,12.1,10.7,11.2,10.2,15.4,18,18.6
1970,20.1,21.1,19.8,14.9,13.1,11.3,11.5,10.7,12.1,14,16.9,19.8
1971,21.3,21.3,19.6,16.9,13,11.8,10.8,10,12,13.7,14.7,17.2
1972,20.9,22.1,19.2,17.6,16.2,12.3,10.4,11,13.3,15.1,17.9,22.7
1973,21.6,21.1,19.5,17.1,14.1,10.4,11.4,10.8,11.6,14.3,16.7,19
1974,21.8,20.4,19.7,15.5,13.4,11.6,10.7,10.9,13.1,15.1,17.2,20.9
1975,20,22.3,18.6,15.8,13.2,11.5,11.3,10.6,12.3,13.6,17.1,19.6
1976,20.2,21.2,20.1,17.7,14.7,11.8,11.9,11.5,13.5,14.8,15.9,20
1977,21.8,22,19.4,16.4,12.8,12.1,11.8,12,12.1,14.8,17.7,21.9
1978,22.1,21.5,21.2,18.4,13.9,11.4,10.4,11.6,12.4,14.5,17.8,20.9
1979,22.2,21.4,20.3,16.4,12.3,12.1,11,10.4,11.5,15.4,17.6,20.9
1980,21.4,19.3,20.7,16,14.5,11.3,11,11.9,13.5,13,19.2,19.9
1981,20.3,19.3,19,18.7,13.7,10,10.4,10.7,14.1,16.2,16.3,18.9
1982,20.9,21,18.3,15.9,13.5,11,10.6,12.7,13.5,15.2,20.1,21.2
1983,22.3,22.2,19.2,17.4,15.2,13.2,11.1,13.2,13.9,15.7,16.1,19.3
1984,21,20.5,18.5,17.1,13.8,12,10.6,10.6,11.4,15.8,17.5,18.7
1985,20.9,23.8,21.3,16.5,14.2,13.6,11.6,11.3,13.4,14,18,18.2
1986,21.7,20.2,19.4,16,13.7,11.3,9.7,10.1,12.7,13,17.1,17.5
1987,19.6,20.5,20.3,17.9,12.9,12.5,10.8,11.1,13.9,14.9,16.3,19.7
1988,20.3,21.1,21,17.3,14.5,12.6,10.3,11.4,13.4,15.8,16.5,19.3
1989,21.8,22.3,20,16.3,14.2,11.6,10.6,11,13.7,14.1,18.8,20.1
1990,20.3,20.9,20.6,16.6,14.5,10.8,9.9,10.4,13.6,14.5,18,19.3
1991,21,21.7,19.9,18.3,15.5,12.7,11.6,11.5,13.4,16.5,16.9,20.7
1992,21,21.2,20.4,17,13.6,11.8,11.9,10.4,10.8,14.3,15.4,18.3
1993,21.6,19.9,19.1,16.9,13.5,10.8,10.7,10.9,12.5,13.7,17.8,19.7
1994,20.9,20.2,21.6,18.2,15.5,12.1,12.1,11.9,13.5,15.3,18.6,20.3
1995,22,21.9,20.3,16.1,13.2,11.3,11.4,12.2,13.1,15.5,17.2,18.5
1996,21.1,22.6,18.6,17.2,16.2,12.7,11.7,11,13,16.1,17.6,19.3
1997,23.1,23.1,19,17.2,13.7,12.9,10.3,10.4,12.7,14.6,17.1,20.1
1998,21.8,20.2,20.3,15.5,14.4,11.2,9.5,12.5,11.9,14.1,17.3,19.5
1999,20.5,20.5,19.4,17.8,15.2,12.2,11.7,11.2,13.6,14.1,16.5,19.1
2000,20,20.3,18.1,16,13.4,12.5,11.3,10.7,14,15.1,18.4,20.7
2001,21.5,20.2,19.3,17.4,14.6,12.5,11.4,11.3,12.7,12.6,16.3,16.7
2002,20.5,18.5,19.7,16.3,16.2,12.6,11.8,11.3,13,15.6,17.6,19.3
2003,21.1,21.9,21.2,17.5,15.4,11.5,10.7,10.8,12.2,14.4,18.1,19.6
2004,19.8,21.8,18.8,17.5,13.7,12.8,10.8,10.6,12.2,16.1,17.7,21
2005,20.9,21.1,22.2,16.7,15.8,11.5,10.4,11.1,11,13.3,16.1,18.6
2006,18.6,20.3,19.4,14.1,14.1,10.5,10.4,12.5,13.4,15.2,18.8,19.4
2007,20.1,21.5,19,16.6,13.2,11,12.1,11.9,12.9,14,17.6,17.8
2008,20.6,20.6,19.3,16.1,14.6,11.8,10.2,10.1,12.9,14.8,15.5,18.4
2009,21.2,20.8,18.5,16.2,13.1,11.3,10.7,11.4,11.2,15.1,18.1,19.4
