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