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