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