1901,21.4,21.9,21.9,21.5,21.1,19.6,19.2,19.8,21.4,22,21.7,21.4
1902,21.4,21.4,21.5,21.6,21.4,20,18.9,18.7,21.3,21.7,21.8,21.8
1903,21.5,21.9,21.7,21.5,20.5,19.6,19,19,21,21.2,21.1,21.4
1904,20.9,21.2,21.4,21.5,20.3,19.2,18.8,19,20.5,21.2,21.5,21.5
1905,21.1,21.7,21.5,21.4,21.2,19.9,18.8,19,20.6,22.2,21.7,21.9
1906,21.1,21.6,21.5,21.7,21.2,18.8,18.7,19.5,20.7,21.5,21.8,21.7
1907,21.2,21.5,21.8,21.4,20.4,19.1,18.2,18.8,20.9,21.4,21.7,21.8
1908,21.5,21.7,21.9,21.6,20.8,19.3,18.9,18.2,21,20.8,21.3,21.8
1909,21.7,21.8,21.5,21.7,20.2,19,18.3,18.9,20.9,21.3,21.6,21.6
1910,21.1,21.4,20.8,21.2,20.2,19.6,18.7,18.9,20.9,21,21.4,21.3
1911,20.9,22.1,21.3,21.5,20.5,18.8,18.3,19,20.8,21.6,21.8,22
1912,21.5,21.6,22.4,22.1,21,19.2,17.2,18.7,19.7,20.8,21.4,20.6
1913,20.8,21.6,21.2,21.1,19.5,18.7,17.9,17.8,19.8,20.6,21.3,21.4
1914,21.7,21.8,22.1,21.1,20.1,19.1,18.6,18.2,20.4,20.6,21.2,21.6
1915,21.7,21.7,22.2,22,21.1,18.9,18.5,18.4,19.7,20.9,21,21.4
1916,21.2,21.3,21.4,20.8,19.6,18.1,17.9,18.9,20.2,20.2,20.1,20.7
1917,20.5,20.5,21,20.6,19.1,18.3,17.1,18.3,18.9,20.5,20.8,20.3
1918,20.6,20.9,21.9,20.8,20.6,19.1,18,18.8,20.8,21.5,21.9,22
1919,22.2,23,22.2,21.4,21.2,19.5,18.5,18.3,20.8,21.4,21.8,21.5
1920,21.6,21.8,21.8,21.5,20.4,18.6,17.8,18.3,20.9,22.2,21.9,21.6
1921,21.4,21.4,21.6,20.9,20.6,18.1,17.2,18.7,20.6,21.4,21.3,22.4
1922,21.6,21.7,21.4,21.4,19.8,18.8,17.7,18.5,20.4,20.5,21,21.2
1923,21,21.8,21.7,20.6,19.7,18.7,17.6,18.6,20.7,21.8,21.5,21.5
1924,22.4,22.6,21.8,21.5,20.1,18.6,18,18.2,20.3,20.5,21.9,21.3
1925,21,21.3,21.2,21.5,20.7,18.7,17.9,19,20.9,22.1,22.1,22.7
1926,22.3,22.6,21.9,21.4,20.2,19.2,17.8,19,21.2,21.6,22,21.6
1927,21.3,21.4,21.4,21,19.9,18.5,17.1,18.2,20.4,21.5,21.9,22.2
1928,21.8,21.9,21.2,21.4,20.7,19.2,17.4,18.2,20.2,21.1,22,21.7
1929,21.8,21.8,21.3,20.8,20,19.1,17.7,18.4,20.4,21.4,21.6,21.2
1930,20.9,21.3,21.3,21.2,20.3,19.3,17.6,18.5,19.8,21.3,21.7,22.1
1931,22.4,22.2,21.3,21.3,20.2,18.8,17.4,18.6,19.9,21.5,21.8,21.3
1932,21.1,21.7,21.2,21.3,19.5,18.3,18.4,18.4,20.5,21.6,22.1,21.8
1933,21.8,21.6,21.5,20.9,20.4,18.3,17.1,18.4,20.8,20.5,21.1,21.7
1934,20.7,20.6,21.4,20.9,20.2,19.2,18,18.1,20.1,20.8,21.4,21.8
1935,21.6,21.6,21.7,20.9,20.2,19.1,18.3,18.5,20.4,22.1,21.8,22.4
1936,21.4,22.3,21.7,21.4,21.4,19.3,18.2,18.7,21,21.9,21.7,22
1937,21.5,22.1,21.6,21.5,20.8,19.4,18.9,19.6,21,21.5,22.7,22.3
1938,21.8,22.1,22,21.6,20.4,19,18.9,19.1,20.8,21.5,21.8,22
1939,21.6,22,22,21.9,20.5,19.7,18.7,19,21.1,22.1,22.4,22.5
1940,21.9,22.6,22.3,21.9,21.2,19.6,19.6,18.9,21,21.9,22.4,22.5
1941,21,21.1,22.1,22.5,20.4,19,19.2,18.5,20.1,21.4,21.6,21.7
1942,21.6,21.4,21.4,22.4,20.3,18.4,18.4,18.6,21.9,22.1,21.2,21
1943,21.1,20.3,21.1,21.8,20.1,18.3,19.1,18.7,20.1,22.7,22.2,21.9
1944,21.5,21.5,21.7,22.1,21.3,20.4,18.6,19.5,21.3,21.4,21.1,21.1
1945,21.6,21.4,21.8,21.2,19.3,19.2,18.7,19.8,21.1,20.6,21.4,21
1946,21.4,21.6,22.1,21.1,20.7,19.8,18,17.6,19.7,20.6,20.5,21
1947,20.4,20.4,21.1,21.1,19.3,19.2,17.7,17.8,20.5,20.7,20.2,21
1948,20.7,20.7,20.7,21,19.8,18.6,18.2,18,20.6,20.9,20.7,21.4
1949,20.1,20.6,20.9,20.7,20.8,19.8,17.4,19.2,20.7,22.3,21.7,22.1
1950,20.3,21.2,20.6,21.3,20.9,19.9,18.8,18.3,21.6,21.5,22.1,21
1951,20.5,21,21.1,20.4,20.4,18.7,18.7,18.6,20.8,21.2,21,21.7
1952,21.2,21.5,21.6,20.9,20.4,18.1,18,19.3,20,21.3,20.3,21.1
1953,20.5,21.2,21,21.2,20.7,19.6,17.3,19.9,21.1,21.2,21.4,21.1
1954,20.9,21.1,21,21.6,20.2,19.4,17.6,19,21.4,20.8,21.2,21.2
1955,20.9,20.7,20.8,20.9,20,19.5,16.5,19.1,21.2,21.8,21.7,20.8
1956,20.5,20.8,21.2,20.5,19.1,18,17.7,18.1,20.3,20.5,21.1,21.2
1957,20.3,21.2,20.9,20.4,21.1,19.2,16.6,19.1,20.6,21.2,21.5,22
1958,22.1,22.7,22.6,21.8,20.5,20.2,20.1,18.8,22,22.4,22,22.2
1959,22.2,21.8,22.1,21.4,20.4,20,18,18.5,21,21.3,21.4,21.8
1960,21,21.1,21.2,20.6,18.5,18.9,16.3,18.5,20.2,20.7,20.5,20.9
1961,21.2,21.4,22,22,21.4,19.3,19.9,21.4,22.8,22.2,22.2,21.4
1962,20.9,21.5,22,21.7,21.2,19,19.4,20.7,21.5,21.9,22.4,21.7
1963,21.3,21.5,21.5,22,20.9,20.2,19.5,21,22.9,23.6,21.9,22.5
1964,21.4,22.4,21.9,21.9,20.6,20.3,19.2,20.5,22,22.6,21.7,21.5
1965,22.1,21.9,21.2,21.7,22.3,20.7,20.5,20.6,22.6,23.3,21.8,22.9
1966,22.3,22.6,22.5,22.6,21.4,21.4,20.2,20.3,21.3,23.4,22.8,22.7
1967,22.3,21.6,22.2,21.7,21.9,20.5,20.5,21.4,22.3,22,22.4,22
1968,21.6,21.5,20.9,20.8,18.8,20,20.1,20.2,21.1,22.5,22.5,22.2
1969,21.6,22.1,22.3,22.3,22,20.4,19.6,20.7,21.8,22.4,22.8,22.9
1970,21.9,22,22,22.8,21.4,20.5,19.3,20.2,21.4,21.6,22.8,22.4
1971,22.1,19.9,20.4,21.2,20.3,18.7,19,18.4,19.8,20.7,20.8,19.2
1972,20.3,20.1,21.2,20.2,20,20.7,17,18.3,20,20.1,21.7,22
1973,21.8,22.1,22.2,21.6,20.6,19,15.7,15.4,17.4,19.6,19.7,22
1974,20.3,21.5,21.9,20.7,19.8,19.7,17.1,19.6,19.8,21.1,20.9,21.3
1975,21,21.5,21.3,21.3,19.4,17.6,20,17.5,19.5,20.3,21,20.2
1976,20.2,20.5,20.5,20.4,19.6,17.3,16.1,17.9,19.4,20.5,21,21.1
1977,21,21.1,20.9,21.2,19.3,18,18.1,18.2,19.9,20.9,21.7,21.8
1978,21,22.1,21,20.6,19.3,17.5,18.3,16.6,20,20.9,20.9,20.8
1979,20.4,20.4,20.8,21.1,20.1,16.9,16.9,18.3,19.6,20.9,21.1,21.3
1980,21.2,21.6,20.3,21.4,20.3,18,16.7,18.1,19.6,21,21,21.2
1981,21.1,21,21.3,21.3,19.9,18,15.6,18.2,19.6,21.2,21.4,22
1982,21.2,21.4,21.7,21.6,19.5,19.2,17.7,18.3,19.5,21.1,20.9,21.6
1983,20.3,22.5,22,22.2,21.1,17.1,18.6,18.3,20.9,21.2,21.7,21.5
1984,21.3,22,22.4,21.3,20.8,18.5,17.5,16.9,20,21.5,21.5,21.8
1985,21.4,22.3,22.4,21.8,20.4,17.2,17.8,17.9,19.9,20.8,21.8,21.2
1986,21.6,21.9,21.6,22.1,20.9,17.8,17.2,18.9,20.4,21.4,21.8,21.2
1987,21.2,21.4,21.1,21.6,20,18.7,19.1,18.4,20.6,21.9,21.1,22.3
1988,21.9,21.8,22,21.5,19.9,17.9,16.6,17.9,21.3,21.4,21.2,21
1989,20.9,21,21.2,21.1,19.3,19,16.3,19,20.2,20.9,21.8,21.8
1990,21.3,21.6,21.7,21.5,20.6,19.3,16.6,18,19.7,21.7,21.8,21.8
1991,22.3,21.9,21.7,21.7,21.1,19.2,17.2,17.9,21,21.2,21.7,22.4
1992,21.6,22.3,22.2,21.3,21.5,21.6,17.3,19.2,19.9,22.2,21.5,21.2
1993,21.6,20.9,21.8,21.6,20.6,19,17.3,18,20.4,21.8,21.8,21.6
1994,21.3,21.7,22,21.8,20.6,18.8,17.1,18.3,20.5,21.7,22.1,21.4
1995,21.6,21.5,21.9,21.1,19.4,19.9,18.6,18.8,20.8,22,21.9,21.6
1996,22.7,21.7,21.4,21.1,20.4,18.2,17.8,17.8,20,21.3,21.4,21.3
1997,20.8,21.4,21.4,21.7,21.1,18.7,17.9,18.5,20.1,22,22.4,21.6
1998,22.4,22.7,22,22.1,20.2,18.8,19.2,19.5,20.7,21.9,21.9,22.2
1999,21.4,21.7,21.6,21.1,20,19.1,17.7,17.6,18.8,21.4,22.1,22
2000,21.7,21.4,21.6,21.4,20.3,19.2,17.1,19,20.4,21.9,21.5,21.9
2001,21.3,21.5,21.7,22,20.4,17.9,18.5,18.5,20.3,22,22,22
2002,22,22.2,22,22,21.7,19.2,19.1,19.4,20.6,21.8,21.4,22.1
2003,22.2,21.9,22.4,22.3,21.1,19.4,16.2,16.9,18.4,20,20,22.7
2004,22.9,21.8,21.5,22.2,19.6,19.1,18.4,19.2,20.6,21.9,22,21.4
2005,22.5,21.9,21.9,21.8,21.2,18.5,17.9,18.9,20.3,21.9,22.8,22
2006,21.9,21.8,21.4,21.1,19.4,19.6,18.7,20.1,19.9,22.7,21.8,21.9
2007,22.4,22.1,21.6,22,19.7,18.5,18.3,18.8,21.1,21.5,21.8,22.1
2008,21.9,21.2,21.5,20.9,19.8,18.1,18.7,19.4,19.8,22.6,22.5,22
2009,20.9,21.7,23.1,21.9,21.7,19.1,18.9,19.7,21.4,22.2,22.8,22.2
