1901,21.2,21.3,21.3,19.9,17.7,15.1,14.9,15.7,16.9,19.1,21.1,21.3
1902,21.2,21.3,20.9,20.4,17.6,15.7,15.7,16.2,17.7,19.2,21.2,21.9
1903,21.3,21.6,21.2,20.6,18.3,15.7,15,16.2,18.4,20.1,20.8,21.2
1904,20.8,20.9,20.4,20.1,17.3,15.7,14.8,15.7,16.5,19.7,21.3,21
1905,21.3,21.3,20.6,19.7,17.7,16.5,14.9,16.3,17.7,20.5,21.2,21.8
1906,21.9,21.1,21,19.7,17.9,15.4,15.1,15.6,17.2,19.4,20.5,21.5
1907,21.4,21,20.9,20,17.7,15.3,14.4,15.2,17.1,19.9,20.9,21.6
1908,21.2,21.2,21.1,20.3,17.1,15.5,15.1,16.2,17.5,20.4,21.5,21.6
1909,21.2,21.5,21.1,20,17.7,15.2,15.3,16.1,17.3,19.7,21.1,21.7
1910,21.4,21.3,20.9,19.7,17.4,15.3,14.9,15.8,17.1,19.4,20.8,21.4
1911,20.9,21,20.7,19.6,17.6,14.9,14.7,15.7,17,20.1,21.4,22.4
1912,21.9,21.7,21,20.5,18.5,15.4,14.9,15.7,17.8,19.8,22.2,21.4
1913,21.3,21.4,21.1,20,18,15.1,15.3,16.1,17.6,20.4,21.7,21.4
1914,21.7,21.4,21.7,20,18.2,15.9,15,16.2,18.1,20.6,21.8,22
1915,21.6,21.6,21.4,20.7,18,15.9,16.2,16.2,17.8,20.6,21.8,22
1916,21.6,21.4,21.8,20.7,18.1,15.6,15.2,15.8,17.7,20.4,21.3,21.5
1917,21.3,21.7,21.4,20.2,18.6,15.9,15.2,16,17.3,19.7,21.4,21.1
1918,20.9,21.2,21,19.6,17.6,15.2,14.9,15.1,17,20.7,21.6,21.6
1919,21.5,21.3,21.3,20.4,17.1,15.3,14.9,15.6,17.4,19.3,21.1,21.9
1920,21.8,21.7,21.2,19.8,18.3,15.6,15.1,16,18.2,20.8,21.6,22.1
1921,21.7,21.9,21.5,20,17.7,15.7,15.1,15.6,17.5,20.3,21.2,21.5
1922,21.7,21.4,20.9,20.1,18.1,15.7,15,16.7,17.8,20,21.8,22
1923,21.7,21.4,21.2,20.4,17.8,15.6,15.2,15.8,17.1,20.2,22.2,21.7
1924,21,21.6,21.4,19.3,18.2,15.8,15.3,16.2,17.9,20.2,21.5,21.7
1925,21.1,21.2,20.9,20.2,17.5,15.4,15.1,15.3,17.3,19.8,21.6,22
1926,21,21.9,21,19.8,17.3,15.2,15.3,15.4,17.2,19.8,21.5,21.8
1927,21.1,21.5,20.6,19.9,17.3,15.2,15.3,15.3,17.1,19.7,21.6,21.3
1928,21.4,21.4,21.2,20.1,17.6,15.9,14.8,15.8,17.5,20,21.4,21.4
1929,21.3,21.2,20.9,19.9,17.5,15.8,15.3,15.7,17.8,20.4,21.7,21.5
1930,21,20.5,21.3,20.2,17.5,15.3,15.1,15.6,17.7,19.3,21.1,21.8
1931,21.6,21.4,21.1,20.1,18.6,15.7,15.5,16.2,17.5,20.3,21.3,21.5
1932,21.2,21.8,20.9,20.2,18,16,15.3,15.7,18.1,20.1,20.8,21.3
1933,21.3,21.3,20.9,19.6,17.5,16.1,15.2,15.6,16.8,19.7,21.5,21.5
1934,21,21,20.9,20.5,18.6,16.1,15.8,16.7,17.1,19.7,21.4,21.4
1935,21,20.7,20.6,18.9,18,14.7,14.7,14.6,17.5,20.5,21.2,21
1936,21,21.9,21,20.2,18.4,15.6,15.4,15.4,17.1,20.5,21.9,21.4
1937,21.5,22,21,20.4,18,15.4,14.8,15.6,17.7,19.9,21.8,21.4
1938,21.2,21.3,20.7,20.2,17.4,16,15.2,15.3,17.6,20.8,21.6,21.6
1939,21,22.2,21,19.9,18.3,15,15,16.2,16.9,20.2,21.1,21.3
1940,21.1,21.4,21.5,19.8,17.7,16.1,14.9,15.9,18.2,18.7,21.5,22.1
1941,22,22.4,21.6,20.2,17.3,14.5,14.4,15.8,17.7,19.9,21.8,22.4
1942,22.6,22.8,22.4,20.6,18.2,15.9,15.4,16.3,17.4,19.6,21.2,22.4
1943,22,21.5,21.3,20.6,18.1,15.2,13.3,15,16.1,18.3,21.3,22.4
1944,21.7,22.3,21.6,20.1,18.2,16.1,15.4,15.2,17.6,20.2,22.4,22.3
1945,22.1,22.4,22,20.7,18.1,14,14.1,15.5,15.6,20.8,21.2,22.3
1946,22,22.3,22,20.4,18.2,15.4,14,14.8,16.2,19.3,21.6,22.2
1947,22.1,22.3,22.1,20.6,17.6,14.8,14.5,14.6,17.1,19.6,21.2,21.8
1948,21.4,21.7,21.1,20.7,18.7,16.2,15.5,16.5,17.3,20.3,21.6,21.6
1949,21.1,20.9,21.2,20.2,18,15.9,15.9,16.6,18.1,20.1,21.6,22.1
1950,21.1,21.3,20.9,20.1,17.1,15.4,15.6,16.1,17.4,19.5,20.8,21.6
1951,21.3,21.4,20.4,20.1,17.8,15.8,15.4,17.2,17.5,20.4,21.8,22.1
1952,21.9,21.9,21.1,20.3,17.8,15.9,15.2,16.1,18.1,20.1,21.3,21.4
1953,21.9,21.8,20.9,20.6,17.7,15.4,14.9,15.7,16.4,19.9,22.4,21.5
1954,21,21.4,20.5,19.7,17.5,14.9,14.7,16.1,17.5,20,21.2,21.5
1955,21.2,21.6,20.5,19.5,17.2,14.8,15.3,15.1,17.1,19.8,21.4,21.4
1956,20.4,20.9,20.8,20,17.4,15.2,13.9,15.3,16.3,18.7,20.7,21
1957,20.9,21.3,20.8,20.2,17.4,14.2,14.4,16.2,17.8,20.3,21.5,21.7
1958,21.7,21.9,21.4,20.3,17.5,16,15,16.2,18.8,20.3,22,21.5
1959,21.3,21.8,21.4,19.7,16.9,15.8,15.6,16.2,17.8,19.6,21.6,21.5
1960,20.6,20.3,20.6,19.9,17.2,16.1,14.5,15.3,17.3,19.8,20.9,22
1961,21.2,20.7,20.8,20.6,18.4,16.1,16.6,15.7,17.5,20.4,21.2,21.5
1962,21.6,21.4,20.8,20.3,16.8,15,15.4,16.6,17.2,19.5,21.3,21.3
1963,20.7,21.5,20.7,19.6,16.3,14.6,15.3,15.1,17.1,20,20.8,21.1
1964,21.2,21.5,20.9,19.4,16.6,15.1,14,15.7,16.8,19.2,20.8,20.9
1965,20.6,21,20.7,19.1,16.4,14.1,14.6,15.6,17.2,19.4,21.5,21.4
1966,20.9,21.8,20.3,19.6,18.1,16.2,15.4,16.3,18.2,19.8,21.1,21.6
1967,21.9,21,21.4,20.4,18.6,16.7,15.8,16.8,18.3,20.5,21.2,21.2
1968,21.4,21.2,20.5,19.5,17.6,14.7,15,17.3,17.7,20.4,21.1,21.6
1969,21.1,21.4,21.2,20.9,18,15.4,15.9,17,18,21.3,21.5,21.8
1970,21.4,22,20.8,19.2,17.5,16.5,16.3,17.3,18.4,20.3,21.6,21
1971,20.9,20.7,20.8,19.8,17.2,14.9,15.3,15.4,16.9,18.6,20.6,21.1
1972,20.5,20.8,20.7,19.8,18.6,14.2,14.9,15.6,17.6,20.3,20.4,21.3
1973,21.7,21.9,21.8,20.2,17,15.1,14.5,15.4,17.5,20.3,21.1,20.7
1974,19.9,20.5,20.2,19.5,18,14.7,15,15.7,16.4,19.2,21.1,21
1975,20.7,20.8,20.6,19.9,18,15.7,14.9,15.3,16.9,17.6,20.4,21.4
1976,20.6,20.1,20.9,20.1,17.4,15.4,14.3,14.9,17.1,19.2,21.4,22.2
1977,21.1,21.7,20.9,19.7,18.1,15,15.5,16.4,17.9,20.6,21.5,22
1978,21.2,20.9,20.9,20,16.9,15.5,14.4,16.1,18,20.2,20.5,21.2
1979,20.7,21.8,21,20.2,17.5,15.7,15.1,16.2,17.4,19.9,21.2,21.6
1980,21.6,21.2,21.1,20.3,18.1,14.4,14.8,15.7,17.5,19.5,21.1,21.3
1981,21.3,21.8,21,19.3,16.9,14.5,14,15.5,16.7,19,21.2,21.5
1982,22.3,21.8,20.3,19.9,17.5,16,15.4,15.7,16.7,19.7,21.5,22.2
1983,22.1,22.2,21.8,20.8,18.9,17.1,16.4,15.9,17.3,19.5,21.8,21.8
1984,21.9,21.9,20.9,19.8,17.9,16,15.5,15.2,17.5,19.6,21.1,21.5
1985,21.3,21.3,21.1,19.7,17.3,14.8,14.7,15.3,17.1,19.2,20.6,21.4
1986,21.3,21.3,20.4,20.6,17.7,15.2,14.2,15.2,17.3,20.5,21.2,21.9
1987,22,21.9,21.4,20.1,18.3,15,14.5,16.6,18.2,19.6,21.6,22.6
1988,21.7,21.5,22,20.9,17.7,16.7,15.8,16.5,17.1,20.1,20.5,21.4
1989,21.4,21.8,21.4,20.5,18.5,15.7,15.4,15.7,17,19.3,21.3,22.1
1990,21.8,22.2,20.8,20.1,18.8,15.9,14.9,15.5,16.3,19.1,21.6,21.4
1991,21.2,21.7,21.5,20.2,18.4,15.2,15.5,15.7,17,19.7,21,21.2
1992,20.8,21.5,21.8,20.8,18.5,16.4,15.1,15.6,17.1,19.3,21.3,21.9
1993,21.5,21.4,20.7,20.8,18.4,15.8,15.1,15.5,16.7,19.4,21.4,21.9
1994,21.9,21.9,21.1,20.1,17.6,15.7,15.9,16.1,17.6,20.3,21.8,21.8
1995,22.3,21.3,21.2,20.4,18.8,15.4,15.7,17.5,17.7,20.1,21.6,22.6
1996,21.7,21.8,21.8,20,18.9,15.7,15.2,16,17.7,19.2,22.1,22.4
1997,22.7,22,21.7,20.8,17.2,15.9,15.9,16.3,18.2,20,22.4,22
1998,22.7,22.3,22.4,20.6,18.2,16.1,15.7,16.9,18.3,20,21.9,22.7
1999,22.5,22.3,21.8,20.2,18.3,16.1,15.8,16,17.4,19.2,21,21.9
2000,22,21,21.5,20,18.9,16.4,15.3,15.7,18,18.5,21.3,21.3
2001,21.2,21.2,22,20.3,18.4,15.8,15.7,16.3,17.7,19.3,22.6,22.2
2002,22.2,21.9,21.8,20,17.7,16.3,16,16.8,17.8,20.9,21.7,22.1
2003,22.5,21.9,22.6,20.4,18.7,17.1,15.1,15.8,17.5,20.7,22.3,21.5
2004,22.4,22,22,20,17.6,15.3,15.4,16.8,18.1,19.8,21.1,21.1
2005,21.8,22.7,21.9,20.4,18.1,16.5,15.4,16.5,18.4,20.2,21.8,22.3
2006,22,22,21.4,19.9,19.5,15.9,16,17,17.3,20.7,21.9,22.1
2007,22,21.8,21.5,20.9,18.3,16.1,15.2,16.4,18.6,20.8,21.7,22.2
2008,21.3,21.7,20.9,20,18.1,15.2,15.7,16.1,17.8,20.1,22.2,21.7
2009,21.1,21.5,21.2,19.6,17.9,16.6,15.2,16.3,18.5,20.5,21.1,22.5
