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