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