1901,21.7,21.4,21.5,19,16.1,13.3,13,14.2,15.8,18.1,20.8,21.1
1902,21.6,21.5,20.8,20.1,16.1,14.5,14.6,15.4,17.5,18.2,20.9,22.2
1903,21.8,22.1,21.5,20.4,17.5,14.5,13.1,15.2,18.8,20.1,20,20.7
1904,20.7,20.6,19.8,19.4,15.4,14.6,12.7,14.3,14.9,19.2,21.2,20.3
1905,21.7,21.4,20.2,18.5,16.3,16.2,12.9,15.6,17.7,21,20.7,21.9
1906,22.9,21,21.1,18.6,16.6,13.9,13.4,14.2,16.4,18.5,19.3,21.3
1907,21.8,20.9,20.7,19.1,16.3,13.7,12,13.2,16.2,19.7,20.1,21.5
1908,21.6,21.3,21.2,19.8,14.9,14.2,13.3,15.4,17.2,20.7,21.5,21.6
1909,21.5,21.9,21.3,19.3,16.1,13.4,13.8,15.1,16.6,19.3,20.6,21.9
1910,21.8,21.5,20.8,18.7,15.5,13.6,13,14.6,16.2,18.6,19.5,21.1
1911,21,20.6,20.2,18.2,15.8,12.8,12.2,14,15.4,20,21,23.4
1912,23,22.5,20.7,20.2,18.1,13.7,12.7,14,17.3,19,22.9,20.9
1913,21.5,21.6,20.9,19.2,16.6,13.1,13.8,15.2,17.2,20.7,21.9,21.6
1914,22.5,21.6,22.5,19.6,17.2,14.9,13.2,15.4,18.3,21.1,22,22.5
1915,22.3,22.3,21.9,20.7,17.1,15.8,16,15.6,17.6,21,22.2,22.3
1916,22,21.1,22.5,19.7,15.4,13.9,13.2,14.3,17.3,21.1,20.8,21.8
1917,21.9,22.7,21.5,19.4,17.7,14.7,13.6,15.2,16.6,19.1,20.7,20.6
1918,20.6,21.1,20.9,17.9,15.8,12.6,12.8,12.9,16.7,21.8,21.8,21.5
1919,21.8,21.2,21.1,19.6,14.6,13.8,12.9,14,16.8,18.2,20.8,22.3
1920,23,22.4,22,18.9,17.6,14,13.9,15.1,18.9,21.9,21.8,22.6
1921,22.8,23,22.2,19.5,16.7,14.2,13.6,14.5,17,20.1,20.9,21.1
1922,22.6,21.3,20.2,19.5,17.5,14.5,13.5,16.2,17.7,19.8,22.1,22.6
1923,22.6,21.8,21.5,20,16.5,14.3,13.6,14.6,16.4,20.3,22.4,21.7
1924,20.9,22.9,22.1,17.8,17.1,14.9,14,15.2,17.8,20.3,21.4,21.9
1925,21.1,21.2,21.3,19.7,16.1,13.9,13.3,13.4,15.7,18.9,21.4,22.5
1926,21.9,22.3,21.3,19.1,16.1,14.1,13.6,14.1,16.9,19.5,21,22
1927,21.5,21.5,20.3,19,15.3,12.9,13.9,14.1,16.3,19.2,20.9,21.1
1928,21.6,21.1,21.4,19,15.1,14.6,12.4,14,16.8,20.3,21.1,21.3
1929,21.6,21.3,20.9,18.2,15.8,14.3,13.5,13.8,17.5,20.7,22.3,21.6
1930,20.9,20.7,21.1,18.9,15.3,13.2,12.9,13.7,16.6,18.4,20.5,21.5
1931,21.8,22.2,21.6,19.1,17.6,13.6,14.1,14.9,17.1,20.4,20.5,20.9
1932,21.3,21.7,20.1,19.1,16.1,13.7,12.4,13.4,17.6,19.5,20,21.2
1933,21.2,21,20.9,18.5,15.7,15.1,14,14.5,15.9,19.2,21.1,20.7
1934,21.7,21.6,21.5,20.1,17.5,15.8,14.5,15.7,16.2,18.8,20.9,21.5
1935,21,20.5,20.6,17.8,16.6,12.8,13.5,12.4,17.2,20,20.3,20.9
1936,21.2,22.4,21.5,19.2,16.3,14.3,14.2,14.2,15.9,19.8,20.7,21.2
1937,21.9,22.1,21.1,19,16.2,13.2,12.8,14,16.7,18.9,21.3,21.3
1938,21.5,21.4,20.6,19.4,16,14.7,13.7,13.9,16.8,20.4,20.7,21.3
1939,21.4,22,21,18.1,16.7,14.1,13.1,15.2,16.4,19.5,20.4,21
1940,21.2,22,21.7,19,16.6,14.9,13.4,15,18,18.1,20.9,22.2
1941,22.1,22.2,20.9,20.2,16.6,14.4,13.5,14.9,16.9,20.3,21.5,21.8
1942,22.5,22.4,22,19.3,16.1,15.3,14.6,15.8,17.3,18.9,20.1,22
1943,21.7,21,20.6,19.6,15.5,13.4,13.2,14.8,15.6,19.6,20.7,20.7
1944,21.7,21.6,20.3,19.1,15.2,13.9,13.6,16.1,16.4,19.7,20.9,20.9
1945,21.1,21.8,20.5,18.5,15.4,11.6,12.3,13.6,15.2,19.4,20,20.8
1946,21.7,21.8,21.5,19.2,15.9,13.7,12.8,13.5,16.7,19.4,20.6,21.4
1947,21.7,22,21.1,19.8,16.1,13.6,12.8,14,16.4,19.2,21.2,21.1
1948,21.4,21.7,21.3,19.6,16.9,13.7,14.3,14.3,16.1,19.6,20.5,20.7
1949,22,21.2,20.7,19.2,17,14.2,14.1,14.1,17,19,21.8,21.5
1950,21.6,21.9,21.3,19.6,15.6,13.9,14,14.4,16,17.7,19.9,21.4
1951,20.8,21.2,20.7,19.4,16.2,13.1,12.1,14.7,16.2,19.6,19.8,20.9
1952,22.1,22.3,21.1,19,15.6,14.6,13.9,14.6,16.8,19.8,19.9,20.7
1953,21.2,21.4,20.8,19.1,15.6,13.1,12.7,14,15.1,19.3,21.5,21.4
1954,21.6,22,20.4,19.2,16.4,13.1,12.6,14.7,17,19.7,20.4,21
1955,21.2,21.9,20.6,18,15.5,13.6,13.6,13.2,16.1,18.8,20.1,20.6
1956,20.9,21.1,21,19,16.9,14.5,12.6,14.5,16.3,18.6,20.1,20
1957,20.9,21.3,20.5,18.8,15.3,13,13.3,15.2,18.6,20.4,22.3,21.1
1958,21.5,21.7,20.6,19.1,16.2,14,12.5,13.5,17.3,19.2,21.2,22.3
1959,21.1,21.5,20.7,18.7,16.5,13.9,14.5,13.9,16.1,18.9,19.8,21.6
1960,20.6,21.3,20.7,18.6,16,15.6,13,15.2,17.1,19.8,21.3,21.6
1961,21.1,22.4,21.9,20.7,17.7,15.6,14.9,15,17.6,19.2,20.5,21.6
1962,21.3,21.6,20.8,19.6,15.4,13.4,14,15.6,16.4,19.7,21.1,21
1963,21.1,20.9,19.9,18.2,14.5,12.7,12.7,13.5,16.9,19.4,20.6,21.2
1964,21.1,21.7,21.4,18.9,16,13.4,12.5,14.2,16.1,20,20.2,20.1
1965,20.7,21.2,20.3,17.5,15,12.4,12.5,14.6,15.9,17,20.5,21.3
1966,21.6,21,20,19,15.6,14.9,14.1,15,16.9,18.1,20.7,22.3
1967,21.9,21.6,20.9,19.8,17.1,15.9,13.4,15.1,16.4,19.7,20.5,20.9
1968,22,21.1,20.5,18.3,16.2,11.4,13.3,14.4,15.6,18.7,19.7,21.3
1969,21.4,22.4,21.2,19.2,15.9,14.1,13.9,15.9,16.2,20.6,21.2,21.3
1970,21.7,21.6,20.6,18.3,15.9,15.3,14.1,15.9,18,19,21,21.2
1971,21.3,21.3,21.2,19.8,15.7,14.4,13.7,15,16.7,19,20.1,21
1972,21.2,21.1,20.8,19.4,16.6,12.1,13.1,13.7,17.1,19.4,19.8,22.8
1973,22.3,22.1,21.8,18.8,15.5,14.5,13,14.2,16.8,19.5,20,20.9
1974,21.4,21.2,20.7,17.9,15.8,12.7,13.9,14.5,15.9,18.9,20.7,20.9
1975,21.5,21.4,20.7,19.5,17.1,14.5,13.1,14.7,16.2,18.5,19.4,21.5
1976,21.6,21.3,20.9,19.1,16,14.4,12.9,13,16.8,18.9,22.2,21.9
1977,21.8,22.4,21.1,18.7,17.1,13.7,14,14.7,17.6,20.7,21.2,22
1978,22.7,22,21.7,19.4,15.8,13.8,12.5,15.4,17.5,20.2,20.5,20.3
1979,20.9,21.5,21.2,18.3,16,13.9,13.5,14.9,17.4,20,20.6,21
1980,21.7,22,21,19.5,15.4,12.6,13.7,14.6,17,18.8,21.7,21.2
1981,22.2,21.9,20.8,18.8,15.3,13.1,12.6,14.5,16.4,17.6,20.5,21.2
1982,21.8,22,21.4,18.7,15.2,14,14,13.9,15.8,18.4,20.1,21.7
1983,22,22.1,21.9,19.3,18.4,15.9,14.7,14.5,17.3,18.5,21.5,21.9
1984,22.3,21.5,21.2,19.3,17.8,14.7,15.1,14.9,17.4,19.9,20.3,21.7
1985,21.4,21.5,20.7,17.9,15.5,13.2,14,15.7,18,19.7,21.1,21.4
1986,21.8,21.8,20.9,20.2,16.2,14.1,14.4,14.8,17.2,19.1,20.2,22
1987,22.2,23.1,22.5,19.8,17.6,14.3,12.9,16,18.4,18.7,21.4,22.7
1988,22.7,22,22.2,20.9,16.9,14.5,14.3,14.5,17.1,19.5,19.8,20.9
1989,21.9,21.3,21.1,19.2,16.2,14.4,13.9,14.9,16.4,18.7,21.4,22.3
1990,21.9,21.7,20.9,20.1,18.1,15.9,14,14.8,16,19.2,20.7,21.5
1991,22.7,22.5,21.9,19.7,17.2,14.5,14.8,14.8,17.3,18.9,20.7,21.5
1992,22.3,22.5,21.9,20.2,17.5,15.4,14.2,15,17.3,20,21.7,22.3
1993,21.5,22.4,21.3,20.8,18,15.5,15.7,15.4,17,20.4,21,22.7
1994,22.4,22.3,21.3,19.7,16.8,15,13.9,15,17.5,18.6,21.5,21.7
1995,22.1,23.2,22.1,20,18.6,14.1,14.2,16.7,17.2,21.2,22.1,22
1996,22.2,22.4,21.3,18.7,17.4,14.2,13.3,15.1,17.4,19.2,22.2,22.2
1997,22.2,22,21.8,18.9,15.1,15.1,14.5,14.4,17.5,19.2,21.5,22.2
1998,22.8,22.8,22.5,20.1,15.9,14,14.3,15.6,17.3,19.7,21.4,21.6
1999,22,21.9,22.1,19.5,16.6,15.1,14.6,14.8,16.7,17.7,20.8,21.1
2000,22.3,22.4,22,19.4,15.9,15.2,13.6,13.5,17.3,18.7,19.5,22
2001,21.2,21.7,21.2,19.7,16.8,14.5,14.1,15.4,16.9,18.3,22,21.8
2002,22.2,21.8,21.7,19.4,16.2,14.8,14.2,16.1,17,19.5,20.4,22.7
2003,22.4,22.5,21,18.8,16.7,15.4,13,13.6,17.1,19.7,22,22.2
2004,22.6,22.5,22.3,19.9,16.4,14.1,13.7,16.5,17,19.6,21.5,21.8
2005,22.6,23.4,22.8,20.7,17.6,15.9,14.2,17.1,17.9,20.2,22,21.9
2006,22.3,22.4,21.2,19.3,16.4,14.6,14.7,15.6,16.4,20.3,21.4,22.9
2007,21.6,22.1,21.8,20.1,16.8,14.5,13.2,14.5,17.6,19.6,21.6,22.7
2008,22,21.7,21.2,17.7,16.8,14.6,14.2,15,16.6,20.4,21.8,22.1
2009,21.1,22.4,21.5,18.2,16.8,14.9,14.6,15.4,18.6,20.1,20.2,22.5
