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