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