1901,22,22.6,22.8,22.2,21.7,20.5,19.8,20.1,21.9,22.5,21.7,21.8
1902,21.9,22.1,22.6,22.3,21.9,20.7,19.8,19.4,21.8,22.3,21.9,22.1
1903,22.2,22.8,22.7,22,21.1,20.3,19.6,19.4,21.6,21.9,21.2,21.5
1904,21.5,21.8,22.3,22,20.9,20.3,19.4,19.6,21.2,21.9,21.7,21.8
1905,21.8,22.4,22.4,22.1,21.7,20.8,19.6,19.6,21.3,22.6,21.8,22
1906,21.8,22.3,22.6,22.3,21.6,19.9,19.5,19.7,21.4,22,21.8,21.8
1907,21.7,21.9,22.8,22,21.2,20.2,19.1,19.4,21.5,22.1,21.7,22.1
1908,22.1,22.2,22.8,22.3,21.5,20.4,19.5,19,21.4,21.5,21.4,21.9
1909,22,22.2,22.6,22.1,21.1,19.9,19.2,19.3,21.5,22.1,21.5,21.8
1910,21.4,21.8,21.7,21.8,20.9,20.5,19.3,19.3,21.4,21.6,21.6,21.5
1911,21.4,22.7,22.2,22.3,21.1,19.9,19.4,19.6,21.7,22.5,21.9,22.5
1912,22.3,22.5,23.5,22.8,21.6,20.8,18.9,19.7,20.9,22.1,21.5,21.4
1913,21.7,22.7,22.6,22,20.7,20.1,19.4,18.9,20.8,21.8,21.8,22.2
1914,22.6,22.9,23.2,22.2,21.6,20.5,19.9,19.6,21.6,21.8,21.6,22.5
1915,22.8,22.9,23.9,23.2,22.3,20.2,19.4,19.6,20.9,22.1,21,21.8
1916,21.8,21.9,22.4,21.7,20.8,19.3,18.6,19,21.2,21.4,20.4,20.9
1917,21.1,21.1,22,21.2,20,19.4,18.7,18.9,20.1,21.3,20.9,20.4
1918,21.3,21.8,23.2,21.5,21,20.6,19.3,19.8,21.7,22.4,22.3,22.7
1919,23.1,24,23.5,22.1,22.1,20.6,19.6,19.1,21.9,22.4,22.2,22.3
1920,22.5,22.9,23.1,22.3,21.3,19.8,19.4,19.1,21.9,23.2,22.5,22.6
1921,22.3,22.1,22.9,21.9,21.3,19.2,18.8,19.1,21.4,22.3,21.8,23
1922,22.7,22.9,22.9,22.4,20.8,20.2,19.1,19.3,21.4,21.7,21.6,22.1
1923,21.3,22.3,22.6,21.5,21,20.2,19.1,19.5,21.6,22.4,22,21.9
1924,23.2,23.1,23,22.4,21,19.8,19.2,19.1,20.9,21.4,21.6,21.4
1925,21.5,21.5,22.1,22.1,21.8,20.4,19.1,20,21.2,23,22.2,23
1926,23.3,23.4,23,22.3,21.2,20.5,19,19.9,22,22.9,22.9,22.6
1927,22.5,22.5,22.9,21.9,21,20,18.6,19.2,21.6,22.8,22.5,23.1
1928,22.8,23.1,22.5,22.2,21.8,20.5,18.8,19.3,21.4,22.3,22.7,22.7
1929,22.9,22.9,22.9,21.8,21.3,20.5,19,19.2,21.4,22.5,22.3,22.2
1930,22,22.3,22.5,22.1,21.1,20.4,18.9,19,20.6,22.5,22.3,23
1931,23.3,23.3,22.6,22.3,21.7,20.5,18.8,19.7,21.2,22.8,22.7,22.2
1932,22.2,22.8,22.7,22.2,20.4,19.5,19.5,19.5,21.5,22.8,22.7,22.6
1933,22.7,22.6,23,21.8,21.3,19.9,18.3,19.4,21.9,21.6,21.7,22.5
1934,21.7,21.4,22.9,21.8,21.3,20.5,19.3,18.9,21,22.2,22,22.5
1935,22.5,22.7,23.1,21.9,20.9,20.2,19.4,19.2,21.5,23.4,22.4,23
1936,22.4,23.3,22.8,22.2,22.2,20.4,19.4,19.5,21.8,22.8,22.2,22.8
1937,22.4,22.7,22.9,22.5,21.7,20.8,20.2,20.5,22.1,22.6,23.2,23.1
1938,22.8,22.9,23.3,22.7,21.4,20.3,20.1,19.9,21.9,22.7,22.3,22.7
1939,22.3,22.9,23.3,23.1,21.4,21.1,20,19.5,21.9,23.1,22.9,23
1940,22.7,23.6,23.7,22.8,22.1,21,20.7,19.7,22.1,23.2,23.2,22.9
1941,23.4,22.6,23.8,23.3,22.1,21.1,20.3,20.8,22.6,23.9,22.9,23.1
1942,23.7,23.3,23.3,23.5,22.7,21,20,20.9,22.8,23.6,23.4,23.3
1943,23.7,23.4,23,23.2,22.4,21.1,20.6,20.3,22.2,24.1,23.3,23
1944,22.7,22.9,22.5,23.3,22.6,21.9,20.2,21.4,22.2,23.7,23.2,23.4
1945,22.5,22.4,22.8,22.5,21.5,20.3,20.1,20.7,22.2,22.7,22.1,21.8
1946,22.3,22.5,22.9,22,20.9,21.3,19.1,18.1,22.2,23.3,21.2,21
1947,21.9,22,23.2,22.3,21.3,19.9,18.7,18.4,22.3,23.3,22.4,21.4
1948,23.3,21.5,21.3,21.5,22,21.1,19.1,20.7,22.2,22.8,22.4,22.3
1949,21.5,21.8,22.4,21.6,22,21.2,18.2,19.9,22.1,22.9,22.7,23.2
1950,21.4,22.1,21.8,22,22,21.1,19.8,20.7,22.5,22.8,23.1,21.4
1951,21.1,21.7,22.2,21.4,21.6,20.2,19.5,19.1,21.7,21.9,21,22.4
1952,21.9,22.4,22.7,21.3,20.7,18.2,18.2,20.1,20.7,22.3,20.4,21.5
1953,21,21.8,21.9,21.8,20.9,20.4,17.6,20.6,21.7,22.1,21.7,21.4
1954,21.4,21.8,21.8,22.4,20.7,20.7,18.9,19.5,22.2,21.5,21.5,21.7
1955,21.5,21.4,21.9,21.7,20.5,20.7,17.8,19.6,22.4,22.9,22.3,21.4
1956,21.1,21.8,22.4,21.2,19.8,19.1,18.8,18.6,21.2,21.3,21.5,21.8
1957,21.2,21.7,22.3,20.9,21.4,19.9,17.2,19.3,21,21.7,21.7,22.3
1958,22.5,23.3,23.5,21.9,20.5,20.3,20.4,19.1,22.7,22.7,21.8,22.6
1959,22.5,22.3,23.2,21.4,20.5,20,18.3,19,21.8,21.9,21.8,22.1
1960,21.7,21.9,22.6,21.1,18.9,19.2,17,19.1,21.3,21.4,21,21.4
1961,22.2,22.3,23.4,22.9,21.9,19.2,20.9,22.4,23.8,23.5,22.2,22.2
1962,21.8,22,23,22.8,21.7,20.4,19.5,20.4,22.6,22.5,22.4,21.3
1963,21.7,22,21.5,22.8,21.5,21.3,20.3,20.4,22.9,24.5,22.3,22.8
1964,22,22.6,22.5,22.5,21,21,20.2,20.3,21.3,22.7,21.1,22.4
1965,22.8,22.7,22.3,22.2,22.3,21.8,21,20.7,22,23.2,22.1,22.3
1966,22.9,23.3,23.3,23.2,22.5,21.7,20.4,18.9,21.4,23.1,22.1,22.5
1967,21.8,21.5,22.2,22,22.6,21.2,20.8,20.9,22.5,22.3,21.5,21.9
1968,21.6,22.3,21.7,21.8,19.9,21.4,21.3,19.9,22,22.5,22,22.7
1969,22.1,22.6,23.6,23.1,23.3,21.4,20.7,20,22.1,22.6,22.8,22.1
1970,22.5,21.9,22.5,23.2,22,21.3,20,20.2,21.9,22.7,22.5,21.9
1971,22,20.9,21.8,21.6,20.4,19.5,19.5,19.2,21.8,21.5,21.7,21.9
1972,21.4,21.4,23.3,21.2,21.1,21.6,18.3,19.2,21.2,21.4,22.1,22.8
1973,23,22.9,23.5,22.2,21.1,20.2,17.1,18.3,20.1,22.5,20.7,22.2
1974,21.8,22.4,23.1,21.4,20.7,20.5,18.5,19.5,21.1,21.7,21.9,21.9
1975,21.4,22.2,22.1,22.6,21,20,20.8,18.9,20.6,21.9,21.4,21.4
1976,21.2,21.3,22.1,21.5,20.6,19.2,18.3,19.4,20.3,22.1,21.1,21.6
1977,21.5,21.9,22.2,22.2,20.2,19.8,19.7,19,20.8,21.5,21.9,21.8
1978,21.6,22.8,22.4,21.7,20.4,19.4,19.6,17.5,20.6,22.2,21.5,21.8
1979,21.7,21.7,22.5,22,21.3,18,18.6,20.1,20.8,21.2,21.7,22.1
1980,22.8,22.8,22.9,22.5,21.5,19.4,18.3,19,20.5,21.4,20.9,21.8
1981,21.5,21.8,22.6,22.2,21.5,19.4,17.7,18.9,20.5,22.3,22.1,22.3
1982,22.1,21.9,22.8,22.3,20.3,20.6,19.5,19.6,20.4,22.4,21.8,22
1983,22.7,23.5,23.7,23.4,22.1,18.2,19.7,19.2,21.7,22.6,22.8,22.7
1984,22.7,23.8,23.5,22,21.6,19.9,18.9,17.8,21.9,23.4,23.1,22.7
1985,23.4,23.5,24.1,22.5,21.8,19.4,19.8,18.6,20.5,22.7,22.4,22.5
1986,22.8,22.9,23.5,22.8,21.9,19.4,18.4,20.5,21.3,22,22.5,22.6
1987,23.2,22.8,22.9,22.4,20.7,19.8,20.5,20.2,21.5,24.3,22.6,23.7
1988,23.4,23,24.4,22.5,20.7,19.4,17.7,20.8,22.2,22.5,21.8,21.8
1989,21.5,21.9,21.8,21.8,19.9,20.3,17.5,19.9,20.8,21.8,22,22.4
1990,21.8,22.5,22.8,22.3,21.3,20.1,17.7,18.9,20.5,22.6,22.1,22.2
1991,22.7,22.8,23,22.6,21.7,20.3,18.2,18.2,21.7,22.1,21.9,22.6
1992,22.2,22.9,23.4,22.4,22.6,22.4,17.9,19.5,20.6,22.9,21.6,21.6
1993,22.1,21.6,22.8,22.2,21.2,20.2,18.6,18.3,21,22.5,21.8,21.9
1994,22.3,22.6,23.5,22.7,21.6,20.5,18.8,19.6,21.5,22.6,22.5,22.1
1995,22.7,22.5,23.1,21.8,20,20.9,19.4,19.2,21.8,23.3,22.3,22.5
1996,22.9,22.5,22.5,22.2,21.2,19.4,19.3,19.5,20.8,22.4,21.2,22.7
1997,21.7,22.2,22.6,22.5,21.7,20.1,19.5,18,21.4,23.1,22.7,22
1998,23.5,24,23.7,22.8,21.6,19.6,20.1,20.2,21.1,22.9,21.7,22.6
1999,22.3,22.2,22.5,21.5,20.4,19.8,18.7,17.6,20.9,21.7,22.7,22
2000,22,22.3,22.4,22.4,21.5,20.1,17.8,19.4,21.6,22.4,22.2,22.3
2001,22.2,22.1,22.9,22.8,20.9,18.9,19.6,19.5,21.4,23.1,22.4,22.2
2002,22.7,22.6,23,22.7,21.9,20.3,19.8,19.7,21.1,22.9,21.6,22.3
2003,22.8,22.7,23.1,22.8,21.8,21.2,18.2,17.6,20,22.3,21.5,22.5
2004,22.5,22.4,23.2,23,20.6,20.2,19.4,19.6,21,22.8,22.6,22.1
2005,23.1,22.7,23.1,22.6,22.1,20.8,19.2,19.7,20.1,21.1,22,22.9
2006,22.5,22.4,22.8,22.4,20.7,21.2,20.3,20.1,20.8,22.6,21.7,22.1
2007,22.2,22.6,22.5,22.9,20.1,20.2,19.4,18.4,21.5,22.2,22.2,22
2008,22.3,21.9,22.4,22.1,20.4,18.7,20.3,20.3,20.7,22.9,22.6,22.3
2009,22.1,22.3,23.8,22.8,22,20,20.2,20.2,21.8,22.9,22.8,22.2
