1901,21.7,21.7,21.5,21.3,21.3,20,19.3,20.3,20.9,21.1,21.4,21.5
1902,21.6,21.3,21.5,21.3,21.3,19.9,19.6,20.1,20.9,21,21.6,21.7
1903,21.8,22,21.6,21,20.9,19.8,19.3,19.9,20.8,20.9,21.2,21.1
1904,21.3,21.2,21.2,21,20.8,20,19.2,20.1,20.7,20.9,21.5,21.5
1905,21.6,21.7,21.3,21.2,21.2,20.2,19.5,20.1,20.7,21.1,21.5,21.4
1906,21.7,21.6,21.5,21.3,21.1,19.7,19.3,20,20.8,20.7,21.5,21.2
1907,21.5,21.1,21.6,21,21.1,19.9,19.2,20,20.8,20.9,21.5,21.6
1908,21.7,21.4,21.5,21.2,21.2,20.1,19.2,19.9,20.6,20.6,21.3,21.4
1909,21.4,21.2,21.5,20.9,21.2,19.6,19.1,19.8,20.8,20.9,21.3,21.3
1910,21.4,21.3,21.3,21,20.6,19.5,18.8,19.6,20.2,20.4,21.3,21.1
1911,21.4,21.5,20.9,21,20.7,19.8,19.3,20.1,20.7,21,21.6,22
1912,22.6,22.5,22.2,21.8,21.1,19.7,19,19.8,20.7,20.9,21,21.5
1913,21.9,21.5,21.7,21.1,20.8,19.7,19.4,20.1,20.7,21.4,22,21.8
1914,22,22,21.8,21.3,21.1,19.8,19.3,20.2,20.7,20.9,21.4,22
1915,22.4,22.3,22.3,22,21.4,19.6,19.5,20.3,20.3,20.8,21.1,22
1916,22,22.2,22.1,22.2,21,18.4,18,19,20.8,20.4,20.7,22.1
1917,22.4,22.5,22.4,22,21.5,20.4,19,19.5,20.2,20.4,21.9,21
1918,21.8,21.2,22,21.3,19.1,21.6,19.9,21.7,21,21,21.4,21.6
1919,22.3,22.2,21.9,21.6,21.5,19.8,19.1,20,20.8,21.1,21.4,21.4
1920,21.7,21.5,21.6,21.3,20.7,19.5,18.9,19.7,20.5,20.9,21.4,21.2
1921,21.1,20.9,21.2,20.4,20.7,17.7,16.8,19,19.4,20.2,21.1,21.2
1922,21.9,21.7,21.7,21.6,21.3,20,19.6,20,20.9,21,21.7,21.5
1923,21.4,21.5,21.5,21,21.1,20,19.4,20.2,21,21.3,21.9,21.7
1924,22.4,21.8,21.8,21.5,21,19.8,19.4,19.9,20.7,20.9,21.5,21.4
1925,21.5,21.1,21.3,21.3,21.4,20.2,19.3,20.4,20.7,21.5,21.9,22.1
1926,22.2,21.9,21.7,21.4,21.2,20.1,19.4,20.3,21.1,21.6,22.2,22.1
1927,22.1,21.7,21.8,21.4,21.2,20,19.4,20.2,21.1,21.6,22.1,22.2
1928,22.1,21.9,21.7,21.4,21.4,20.1,19.4,20.2,21.1,21.4,22.2,22.1
1929,22.2,21.8,21.8,21.4,21.3,20.1,19.4,20.2,21,21.4,22,22
1930,21.9,21.7,21.7,21.4,21.2,20.1,19.4,20.1,20.9,21.5,22,22.2
1931,22.4,22.1,21.8,21.6,21.4,20.2,19.4,20.3,21.1,21.5,22.2,22
1932,22,22,21.8,21.3,20.8,19.7,19.5,20.3,21.1,21.5,22,22
1933,22.2,21.7,21.9,21.3,21.2,19.9,19.4,20.2,21.2,21.3,21.9,22.1
1934,21.9,21.3,21.8,21.3,21.3,20.2,19.4,20,20.8,21.4,22,22
1935,22.1,21.8,22,21.3,21,19.9,19.4,20,21,21.6,22,22.1
1936,22,22,21.6,21.2,21.5,20,19.4,20.1,21.1,21.5,22,22.1
1937,22,21.5,22,21.9,21.7,20.8,20.4,21.1,21.7,21.6,22.6,22.5
1938,22.5,22,21.9,21.9,21.6,20.3,20.1,20.7,21.7,21.4,22.4,22.3
1939,22,21.8,21.9,22.2,21.8,21.1,20.3,20.2,21.2,22,22.2,22.1
1940,22.3,22.6,22.5,21.9,22.1,20.9,20.3,20.5,21.8,22.4,22.9,22.2
1941,22.6,22.5,23,22.2,22.5,20.4,20.4,21.1,21.9,23.2,24.1,23.7
1942,23.1,23,22.8,22.6,22.1,21.2,21,21.7,21.9,22.9,23.7,22.2
1943,24.1,22.3,23.7,23.1,21.5,20.8,21.5,20.7,21.9,22.6,23.7,23.1
1944,23.3,21.9,21.9,22.8,23,21.7,21.7,21.3,22.9,22.9,22.9,23.5
1945,23.4,22.8,22.9,22.7,22.4,19.9,20.8,21.7,22.7,22.4,23.3,23
1946,22.9,23,22.9,21.7,21.5,20.8,19.4,20.7,21.7,22.3,22.2,21.6
1947,22.8,22.7,22.8,22.2,22.2,19.7,19.2,19.4,21.3,21.1,21.6,21
1948,21.7,21.7,21.4,21.2,21.6,19.9,19.3,19.7,20.4,21.6,21.9,21.3
1949,23.4,21.3,21.9,20,20.7,19.4,18.9,19.2,20.6,20.9,21.8,21.9
1950,21.6,20.9,20.9,21.2,19.8,19.2,18.6,19.9,21,21.4,22,20.3
1951,21.2,20.7,20.8,19.9,20.3,19.3,19.6,19.6,21.1,21,21.3,21.9
1952,21.5,21.2,21.5,20.4,20.7,18,18.6,19,19.7,21,21.1,21.4
1953,21.3,21.2,21.1,21,20.8,19.3,17.9,20,21.2,20.8,21.3,21.4
1954,21.2,21.1,21.2,21.4,20.3,19.9,18.7,20.5,21.1,20.5,21.4,21
1955,21.5,21.3,21.2,21,20.3,20.1,18.6,19.6,20.4,21.7,21.8,21.3
1956,21.5,20.6,21.5,20.7,20.3,19.4,19,19.7,21,20.5,21.5,21.9
1957,21.5,21.1,21.3,20.4,21.5,19.7,18.3,20,20.4,21,21.2,21.8
1958,21.7,21.7,20.7,20.9,19.9,19.7,20.2,19.4,21.7,21.4,21.9,22.5
1959,21.5,21.1,21.6,21.1,19.9,20.1,18.9,20.2,21.6,21,22.8,21.7
1960,23.3,22.3,22.5,21.5,20.5,20.6,19.9,20.2,21.2,21.9,22,21.2
1961,23.1,21.9,22.4,21.8,21.8,20.3,21.5,22.8,23,23.1,23.2,22.4
1962,23,22.3,22.8,22.3,21,20.4,18.5,20.1,23,22.5,23.7,23.4
1963,23.2,22.5,21.7,21.9,21.4,21,20.7,22.9,23.2,22.7,21.7,23.1
1964,23.9,22.5,22.3,22.1,21,20.7,19.6,20.7,22,21.9,22.6,23.3
1965,23.1,22.6,22.1,21.8,22,20.9,19.9,21.6,21.8,23,22.6,22.6
1966,23.4,24.1,22.8,22.8,22.2,21.6,19.9,19.8,21.3,21.9,22.1,22.1
1967,22.6,21.8,21.6,21.4,22.1,20.8,19.7,21.4,22.1,21.8,22.2,22.1
1968,21.9,22.7,21.9,21.3,21.4,20.2,20.9,20.4,20.6,21.6,22.1,22.4
1969,22.5,22.9,23.3,22.7,23.1,20.8,20,20.9,22,22.2,23.4,22.4
1970,22.3,21.1,21.7,22,22.1,20.9,19.9,21,21.3,21.4,22.3,21.8
1971,22.4,21.7,22,21.7,21.4,20.2,20.3,20.5,21.3,21.2,22.1,22
1972,21.3,22.1,21.6,21.1,21.6,21.9,20.1,21.4,20.4,21.7,22.8,23.1
1973,22.1,22.5,22.9,22.5,22.1,20.5,18.8,19.1,20.1,21.1,21,20.6
1974,20.7,20.2,21,20.4,20,19.1,18.3,18.8,19.4,20.2,21.7,20.8
1975,20.5,20.7,21.2,21.7,20.9,20.2,17.8,19.8,20.6,21.1,21.7,21.2
1976,20.7,21,20.6,20.7,20.2,19.1,18.4,19.4,19.5,20.6,21.3,20.9
1977,22.3,20.9,21.1,21,20,19.2,19.7,19.4,21,20.8,21.2,22
1978,21.2,21.5,21,20.9,20.2,19.1,19.1,18,19.7,20.2,21.2,20.7
1979,21.6,20.9,21,20.6,20.8,18,18.6,20.2,20.2,20.6,21.2,21
1980,21.4,21.4,21.1,21.5,20.7,19.1,18.5,19.5,19.8,20.3,21.1,22.1
1981,21.1,20.4,21.3,21.4,21,19.1,17.7,19,19.5,20.4,21.4,20.8
1982,20.7,19.8,22.4,20.3,20.3,20.2,19.1,19.1,19.8,19.9,22.1,22.4
1983,21.5,21.5,21.9,21.7,21.5,19.5,19.5,20.1,20.1,21.1,21.2,21.3
1984,20.7,20.6,21.1,20.7,21.3,19.6,19,18.5,21.6,23.1,20.6,21.4
1985,21.6,20.8,21.1,20.1,20.8,18.9,19.2,19.7,19.9,20.6,21,21.4
1986,21,20.4,20.6,22.1,21.2,20.3,18.3,20.5,21.2,21.4,21.5,20.9
1987,21.2,21.1,21.7,21.4,20.8,19.5,20,19.4,20.4,22.1,21.6,21.6
1988,21.8,22.5,22,21.4,20.7,18.8,19.5,21.2,20.7,21.2,21.4,22.1
1989,21.7,20.7,20.8,20.9,20.2,19.6,19,19.7,20.9,20.5,22.1,22.1
1990,21.1,21.3,21.3,21.2,20.8,19.5,19,20,20.7,21.2,22.3,21.1
1991,22.1,21.4,21.4,21.7,21.3,20.2,19.3,19.1,20.2,20.7,21,22.4
1992,22.4,21.6,22,22,22.8,21,18.2,19.8,20.2,21.1,21.3,21.5
1993,21.5,21,21.4,21.3,21.4,20.1,19.2,19,20.6,21.1,21.3,21.3
1994,21.8,21.6,22.1,22,21.7,19.9,19.4,20.7,21.4,21.1,21.9,21.4
1995,22.5,21.5,21.3,21.4,20.1,20.4,20.2,20.5,21,20.6,20.7,21.5
1996,21.2,21.7,21.7,20.6,20.6,18.6,19.1,20.2,20.4,20.7,21,21.2
1997,21.4,20.9,20.9,21.7,21.1,19.5,20.3,19.7,21.8,22.1,22.1,22
1998,23.1,22.9,22.5,22.3,21.2,19.4,20.3,21.5,21,21.5,21.6,21.7
1999,21.1,21,21.6,20.6,20.5,19.7,18.9,19.2,20.4,21.1,21.8,21.4
2000,21.4,21.3,21.5,20.6,21.3,20.2,18.1,20.6,21.5,21.6,22.9,22
2001,21.4,21.7,21.4,21.9,21.3,19,19.7,21.1,20.9,22.1,22.7,21.8
2002,22.6,21.8,21.9,21.9,21.9,20.3,19.5,21.1,21.6,21.8,21.9,22.2
2003,22.6,22.1,22.9,21.9,21.4,21,19.8,18.8,21,22.2,22.8,22
2004,22.4,22.1,22.2,22.2,21.8,21.2,20.8,21,21.1,21.5,22,21.6
2005,22.1,22.1,22.3,21.7,22.5,21.2,19.8,21.3,21.3,21.5,22.5,22.5
2006,21.9,21.8,21.9,21.8,21,20.4,20.8,20.7,21.4,21.4,21.9,21.8
2007,22.3,22.1,21.6,21.8,20.4,20.5,19.6,20.5,21.5,21.5,22.2,21.5
2008,21.5,21.3,21.2,21.4,20.7,18.7,20.3,21.5,20.7,21.3,22.2,21.9
2009,21.2,21.4,22,22.1,21.5,19.6,20.2,20.8,21.6,22,22.8,22.1
