1901,20.6,20.5,20.8,19.8,17.8,15.3,14.9,16.9,18.5,20.7,21.8,21.1
1902,20.6,20.5,20.5,20.3,17.6,16,15.7,17.5,19.1,20.7,22,21.7
1903,20.8,20.9,20.8,20.4,18.3,15.9,14.9,17.3,20.1,21.8,21.6,20.9
1904,20.3,20.1,19.9,20,17.3,16,14.8,16.8,18,21.2,22,20.6
1905,20.7,20.5,20.2,19.6,17.7,16.7,14.8,17.5,19.5,22.1,22,21.6
1906,21.3,20.3,20.5,19.5,17.9,15.7,15.1,16.8,18.7,21,21.2,21.2
1907,20.8,20.3,20.5,19.8,17.8,15.5,14.4,16.3,18.5,21.4,21.6,21.4
1908,20.6,20.5,20.6,20.2,17.1,15.7,15,17.4,19,21.9,22.3,21.4
1909,20.7,20.8,20.7,19.9,17.8,15.5,15.2,17.3,18.7,21.4,21.8,21.6
1910,20.8,20.6,20.5,19.6,17.4,15.6,14.9,17,18.5,20.9,21.7,21.2
1911,20.4,20.2,20.2,19.5,17.6,15.1,14.4,16.7,18.2,21.6,22.1,22.2
1912,21.3,21.1,20.3,20.4,18.7,15.5,14.7,16.6,19,21.1,23,21
1913,20.7,20.7,20.4,19.9,17.8,15.2,15.3,17.2,19.1,21.9,22.5,21.9
1914,21.2,20.6,21.4,20.3,18.3,16.1,15,17.4,19.6,22.2,22.7,21.7
1915,21,20.7,20.8,20.4,17.8,16.1,15.9,17.3,19.4,22.3,22.6,21.8
1916,21,21,21.3,20.3,17.8,15.9,15.2,16.9,19.3,22.2,22,21.6
1917,21.1,21.4,21,20.1,18.5,16.2,15.5,17.1,18.7,21.7,22.2,20.8
1918,20.1,20.5,20.5,19.4,17.5,15.2,14.9,16,18.8,22.5,22.4,21.6
1919,21,20.5,20.8,20.4,17.2,15.6,14.9,16.6,18.7,20.9,21.8,21.6
1920,21.3,21.1,20.8,19.7,18.3,16,15.2,17.1,19.7,22.4,22.5,21.9
1921,21.2,21.2,21.1,20,17.8,16,15,16.7,18.8,21.8,22,21.3
1922,21.3,20.7,21.1,20.3,18.3,16.1,15.1,18.1,19.5,21.6,22.6,21.8
1923,21.1,20.7,20.8,20.2,17.8,15.9,15.2,16.9,19,21.7,23.1,21.5
1924,20.4,21,21.2,19.5,18.2,16.2,15.1,17,19,21.5,22.2,21.2
1925,20.4,20.5,20.7,20.2,17.9,16.1,15.1,16.8,18.2,21.1,22.4,21.8
1926,20.8,21.3,20.8,19.8,17.8,15.7,15.1,16.9,19,21.7,22.4,21.5
1927,20.8,20.7,20.4,19.8,17.6,15.4,15.3,16.9,18.8,21.6,22.2,21.5
1928,21.1,20.8,20.8,19.9,17.5,16.2,14.9,16.9,19.3,21.9,22.5,21.4
1929,20.8,20.6,20.5,19.7,17.9,16,15.4,16.8,19.5,22.2,22.8,21.4
1930,20.5,20.6,20.7,19.9,17.4,15.4,14.9,16.8,19,21.2,22.3,21.7
1931,20.9,21,20.9,20.1,18.5,15.7,15.5,17.6,19.4,22.1,22,21.4
1932,20.9,20.9,20.6,20,17.6,15.7,15,16.7,19.5,21.7,22,21.4
1933,20.7,20.6,20.7,19.7,17.7,16.1,15.4,16.9,18.5,21.6,22.3,21
1934,20.4,20.1,20.1,19.7,18.4,16,15.5,17.6,18.6,21.2,21.7,20.9
1935,20.8,19.7,20.4,18.9,18,15.5,14.7,16.1,19.3,22.4,21.9,21.1
1936,20.5,20.8,20.4,19.4,18.3,15.9,15.3,16.6,18.5,21.9,22.8,20.9
1937,20.8,21.1,20.5,19.6,17.7,15.8,14.9,16.4,19.3,21.5,22.7,21.3
1938,21,20.8,20.2,20.2,17.6,16,15.6,17.1,19.4,22,22.4,21.3
1939,20.6,21.3,20,19.3,17.8,15,15.1,17.4,18.4,21.4,21.8,21.2
1940,20.4,20.5,20.5,19.6,17.7,16.1,14.8,17.2,19.6,20.4,22,22
1941,21.4,21.6,21,20.1,17.6,15.1,14.8,17,19.4,21.6,22.3,21.9
1942,22.1,22,21.7,20,18,16.4,15.1,17.7,19.3,21.1,21.6,22
1943,21.3,20.6,20.8,20.3,17.9,15.5,14.1,16.6,18.1,20.6,22.5,22.3
1944,21.6,21.4,20.7,19.9,17.7,16.3,15.5,16.6,19.3,22,22.4,21.8
1945,21.3,21.4,21.4,20.4,18,14.3,14.2,16.7,18,22.4,22,22.4
1946,22,21.7,21.4,20,18.1,15.2,14,15.9,18,21.5,22,22.3
1947,21.7,21.5,21.3,20.3,17.5,15.1,14.7,16,18.8,21.3,22.3,21.4
1948,20.9,20.9,20.8,20.1,18,15.9,15,17.2,18.3,21.7,22.2,21.9
1949,21.6,20.5,20.7,20.2,17.9,15.9,15.9,18.1,19.5,21.7,22.9,22
1950,20.4,20.5,20.5,19.8,16.5,15.3,15.4,16.8,18.5,20.3,21.6,21.5
1951,20.5,20.1,20.5,20.2,17.6,15.8,15.4,18,19.2,21.9,22.4,21.3
1952,21.3,20.5,20.6,19.8,17.6,15.7,15.1,17.5,19.4,21.6,21.6,21.6
1953,21.2,21,20.5,20.3,17.9,15.3,14.9,17,17.8,21.4,23.6,20.9
1954,20.3,20.7,20.2,19.4,18.2,14.7,14.7,17.2,18.8,21.9,21.7,21.1
1955,20.5,20.4,20.2,19.2,17.4,15.1,15.1,16.7,18.5,21.7,22.6,20.8
1956,19.7,20.1,20.7,19.3,17.5,15.1,14.1,17,18,20.8,21.8,20.6
1957,20.2,20.1,20.5,19.5,17.2,15.1,15.1,17.3,19.5,22.1,23.9,21
1958,21.4,20.9,20.9,20.6,17.8,15.8,14.5,16.7,20.2,22.1,22.9,21.4
1959,21.2,20.6,20.9,19.8,18.7,16.3,15.5,17.3,19.1,21.2,22,21.1
1960,20.5,19.9,19.9,19.2,17.7,16,14.2,17.1,18.6,21.5,22.1,21.9
1961,20.9,20.1,20.6,20.2,18.8,16.3,15.4,16.2,18.9,22.1,21.3,20.4
1962,20.3,20.3,20.3,19.8,16.5,15.9,15.1,17.3,18.7,20.9,21.8,21
1963,20.1,20.6,19.9,19,16.8,14.9,15.7,16.9,18.7,22.3,20.2,20.7
1964,20.4,20.7,20.8,19.5,16.9,15.7,13.6,16.7,18.2,21.2,21.8,21
1965,20,20,20,19.1,16.6,15,14.7,16.6,18.3,20.7,22.2,21
1966,20.8,20.8,20.3,19.5,18.4,15.8,15.5,17.6,19.5,21.2,21.9,21.2
1967,21.2,20.6,20.6,19.8,18,16.3,14.6,16.8,18.8,21.8,21.2,20.8
1968,20.7,20.3,19.9,19.3,17.9,15.1,14.8,18.4,18.8,21.7,21.5,20.6
1969,20.6,20.9,21,20.5,17.8,15.9,15.3,17.3,19,22.4,22.5,21.2
1970,20.7,21,20.4,19.4,17.8,16.2,16.2,17.9,19.6,21.5,21.9,20.3
1971,20.2,19.9,20.4,19.8,17.3,15.1,15.4,17.3,18.7,20.5,21.5,20.8
1972,20.4,20,20.4,19.9,18.6,15.3,15.1,17.2,19.5,21.5,21.5,21.3
1973,21.1,20.6,21.5,19.3,18.2,15.1,14.6,16.9,19.5,21.6,22.3,20.7
1974,19.5,20,20.1,19,17.6,15.2,14.3,17.3,18.2,21.2,22.1,20.9
1975,20.6,20.4,20.1,19.8,18.2,15.6,15.3,16.1,18.5,20.2,21.9,21.2
1976,20.1,19.7,20.4,19.7,17.2,15.3,14.6,16.3,19,21.1,23,22.2
1977,20.6,21,20.8,19.6,18.3,15.9,15.3,17.5,19.3,22.3,22.1,21.9
1978,20.6,20.6,20.1,19.7,17.6,15.3,14.4,18.1,19.8,21.7,21.3,20.7
1979,20.8,20.8,20.5,19.9,17.7,15.3,15,17.6,19.2,21.6,21.7,21.4
1980,21,21.1,20.6,20,18,15,14.5,16.7,19.2,21,22.6,21
1981,21.7,21.2,21.2,19.9,17,15.5,14.7,17.3,19,20.9,23.2,22.3
1982,21.6,21.4,20.9,20.1,17.5,16.4,15.4,16.9,18.7,20.7,21.9,22.5
1983,22,22,22,21.2,19.7,17.3,16.5,16.3,19.6,21.5,23.6,21.4
1984,21,20.8,21,19.9,17.9,15.9,15.5,16.7,19.8,21.7,21.7,21.3
1985,21.5,20.4,20.9,19.6,17.7,15.7,15.4,16.7,19.1,21,21.1,21.4
1986,20.9,21,20.2,20.4,17.9,15.2,15,17.4,19,21.5,21.7,21.5
1987,21.5,21.7,21.6,20.5,18.7,15.8,15.8,18,19.8,21.2,24,23.3
1988,21.6,21.5,21.2,21.2,17.9,17.2,16.2,17.9,19.3,21.7,21.6,21.6
1989,20.6,20.7,20.3,19.9,17.6,15.9,15.2,17.1,18.9,21.3,22.3,21.6
1990,21.5,21.4,21.2,20.5,18.1,16.7,15.8,17,18.3,22.1,23.8,22.3
1991,20.8,21.4,21,20.2,18.7,16.3,14.9,17.1,18.9,21,21.7,20.9
1992,21,21.5,21.7,20.9,19.1,16.6,14.9,16.1,19.5,19.7,22.4,21.8
1993,20.6,20.2,20.6,21,18.6,15.4,15.4,16.7,18.8,21.5,22.1,22.8
1994,20.6,21.7,21.4,19.9,17.9,16.4,13.6,16.9,19.3,21.2,23.8,22.6
1995,20.6,20.6,21.1,20.7,18.8,16.4,16,18.9,19.4,22.6,24,22.7
1996,21.2,20.6,21.2,19.3,18.3,15.9,15.9,17.7,19.9,21.3,22.9,22.8
1997,22.3,21.3,21.7,20.9,18.1,17.6,16.1,18.1,20.1,21.9,23.6,22.2
1998,21.6,21.6,22.1,20.1,18.8,16.5,16.5,18.4,19.1,22,23.7,22.7
1999,21.7,21.6,20.9,19.9,18.5,16.3,15.5,17.3,19,21.1,22.2,22.8
2000,21.4,20.4,20.7,20.3,18.8,16.2,15,17.1,19.3,21.4,21.3,21
2001,20.4,20.8,20.9,19.9,17.9,15.9,15.6,18.1,19.6,23.2,22.8,22.3
2002,20.8,20.5,21.1,20,18.9,15.9,16.9,17.8,19.3,22.2,22.5,22
2003,21.4,21.6,21.7,20.1,18.5,16.7,15.1,17.5,19.4,22.5,23.7,21.9
2004,21.9,21.2,21.6,19.9,17.4,15.8,15.8,18.4,19.8,21.8,22,20.8
2005,21.3,22.8,21.9,20.3,18.5,17.3,15.4,18.5,19.5,22,23.6,22.7
2006,20.4,20.4,20.8,19.7,19.3,16,15.7,18.4,18.6,22.5,22.8,21.7
2007,20.7,20.9,20.9,20.7,18.4,16.4,15.3,17.9,20.1,21.7,22.7,21.2
2008,20.6,20.7,20.5,19.8,19,15.6,15.6,17.5,19.6,22.4,23.1,21.4
2009,21.3,24.6,20.3,19.4,18.1,17.3,15.2,18.1,20.7,22.5,22.5,22.7
