1901,20.8,20.7,20.9,20.1,20,19.7,18.8,18.3,18.3,19.1,19.7,20.6
1902,20.7,21.3,21.5,20.7,20.2,20,19.2,18.2,18.2,18.9,19.5,20.8
1903,20.3,20.3,21.1,21.1,21.2,20,19,18.1,18.1,19.1,19.6,20.8
1904,20.4,21.1,20.8,20.7,20.4,19.3,18.1,17.2,17.9,18.7,19.3,20.1
1905,20.5,20.3,20.2,19.9,20.5,19.6,18.7,18.3,18.3,19,19.9,20.3
1906,20.9,20.4,21.3,20.1,19.6,18.8,18.5,18,18.1,19.1,19.7,20.4
1907,20.6,20.4,21.6,21,21.2,20.3,18.2,18.2,18.4,19.4,19.7,20.5
1908,21,21.9,21.5,20.9,21.1,20.2,19.3,18.7,18.7,19.4,19.5,20.7
1909,20.6,20.7,22,20.8,21.1,20.3,19.1,18.3,18.3,19.3,19.8,20.5
1910,20.2,21,21.1,20.2,19.9,19.2,18.6,18.4,18.5,19.4,19.7,20.3
1911,19.9,20.5,20.3,20.3,20.7,20.3,19,18.2,18.4,19.2,19.8,20.5
1912,20.5,20.2,20.6,20.3,20.1,18.8,18.4,18,18,18.8,19.8,20.6
1913,20.8,20.3,20.9,20.2,20.1,19.1,18.4,18.1,18.4,19.1,19.8,19.8
1914,19.7,19.8,20.5,20.1,19.9,19,18,17.5,18.1,19,19.6,20.4
1915,20.5,21,20.8,21.1,21.2,20,19.1,18.5,18.3,19.2,19.8,20.2
1916,20.4,21,20.4,20.2,20,18.7,17.9,17.6,17.9,18.8,19.3,19.9
1917,19.7,19.8,20.3,19.8,19.6,18,17.7,17.5,18,19.2,19.6,20.2
1918,20.1,19.9,20.8,20,20.3,19,18.3,17.4,18,19.2,19.8,20.2
1919,20.3,20.8,21.4,19.9,21.1,19.7,18.4,17.9,18.1,19,19.6,20.6
1920,20.6,20.9,20.8,20.1,20.2,18.7,18.2,17.9,18.1,19.2,19.8,20.5
1921,20.5,20.3,20.8,20.1,19.8,18.5,17.5,17.5,18,19,19.6,20.4
1922,20.7,20.7,21.2,20,20.1,18.8,17.8,17.5,18.1,19.1,19.3,20.1
1923,20.7,20.1,20.9,19.6,20.2,19.1,18,17.9,18.3,19.3,20,20.8
1924,21,20.4,20.8,20.1,20.1,18.6,17.8,17.4,18.1,18.6,19.5,20.1
1925,19.8,19.8,20.5,19.8,20.2,19.3,18.6,18.2,18.2,19,19.6,20.3
1926,20.5,20.7,21,20.4,20.3,19.2,18.4,18.1,18.4,19.2,20,20.7
1927,20.6,20.5,21,20.2,20.5,19,18.1,18.2,18.6,19.4,20,20.5
1928,20.7,21,21.2,20.3,20.4,19.6,18.6,18.1,18.4,19.1,19.7,20.3
1929,20.9,20.6,21.3,19.8,19.8,19,18.1,18.1,18.7,19,19.5,20.1
1930,20.5,20.6,21.1,20.1,20.6,19.5,18.7,18.4,18.5,19.2,20,20.6
1931,20.6,21,21.6,20.8,20.8,19.9,19.2,18.2,18.3,19.1,19.7,20.5
1932,20.5,20.8,20.9,20.8,20.9,19.8,18.7,18.3,18.3,19,19.8,20.4
1933,20.6,20.5,20.8,20.1,19.8,19,18.4,18,18.4,19.4,19.5,20.3
1934,20.4,20.3,20.3,20,19.6,18.2,17.5,17.5,18.3,19,19.6,20.5
1935,20.7,20,20.8,20,19.7,18.7,18.1,17.8,18,19.2,19.9,20.6
1936,20.5,20.2,20.8,20.5,20.3,18.7,17.5,17.8,18,19,19.7,20.3
1937,20.9,20.9,21.3,20.2,19.9,18.9,18.2,18,18.3,19.3,20.2,20.8
1938,20.7,21.5,20.8,20.1,20.1,18.8,18.1,17.9,18.4,19.2,19.4,20.6
1939,20.6,20.2,20.5,20,20.3,19.1,18.3,18,18.2,18.7,19.7,20.6
1940,20.5,20.8,20.5,20.1,20.2,18.5,18,17.8,18.1,19.1,19.6,20.8
1941,21.2,21.5,21.1,20.8,20.7,19.3,18.7,18.4,19,19.6,20,20.7
1942,21.1,20.6,21.3,20.9,20.6,19.3,18,17.3,18.8,19.5,20.5,20.4
1943,20.8,20.6,21.4,20.1,20.4,18.9,17.9,17.6,18.2,19.8,19.8,20.5
1944,20.3,20.8,21.6,20.2,20.1,19,18.1,17.3,17.8,19.2,20.3,20.9
1945,21.3,20.4,21.9,20.9,20.4,18.4,17.9,18.1,18.4,19.2,20.3,20.7
1946,20.5,21.1,21.3,20.2,20.7,19.2,19,18.4,18.6,19.4,19.9,20.5
1947,20.6,20.7,21.1,19.9,20.2,19,18.6,18.5,18.5,19.7,20,20.3
1948,20.9,20.9,21.3,20.8,20.3,19.2,18.6,18,18.3,18.9,20,20.8
1949,21,21,22,20.5,20.2,19.1,18.3,17.6,18.4,19.6,20.1,21
1950,21,21.3,20.9,19.4,19.7,18.6,17.7,17.2,18.4,19.1,20,20.1
1951,20.5,20.9,21.9,20.4,20.2,18.4,17.5,17.6,18.1,19.1,19.8,19.9
1952,20.8,21.2,20.9,20.3,20,18.8,18.2,17.7,18.7,19.2,19.9,20.5
1953,20.5,20.8,21.4,20.1,20,18.5,17.9,17.7,18.6,19.5,20,20.4
1954,20.6,20.7,21.3,20.3,19.9,18.7,17.9,17.7,18.4,19.2,19.7,20.6
1955,20.6,20,20.3,20,20,18.7,18.1,17.7,18.4,19.3,19.9,20.5
1956,20.6,20.6,21.2,20.1,20.7,18.9,18.1,17.1,18,19.1,19.7,20.3
1957,20,20.8,20.4,19.8,19.9,18.4,18.1,18.1,18.2,18.8,20,20.9
1958,21,21.1,21.8,21.1,20.6,19.2,18.3,18,18.2,19.4,19.9,20.3
1959,20.6,20.7,21.7,20.7,20.4,19.2,18.4,18.2,18.4,19.6,20,20.8
1960,21.1,21.2,20.5,20.1,20.8,19.7,18.4,18.4,18.4,19.5,20.2,21.1
1961,20.7,20.6,20.8,19.8,20,18.9,17.7,17.5,18.2,18.9,19.8,21.1
1962,20.6,20.8,21.1,20.1,19.9,18.6,18,17.8,18,19.3,19,20.5
1963,20.7,20.7,20.5,20,20,18.5,17.9,17.6,18.3,19.2,20.2,20.2
1964,20.6,20.2,20.6,20.3,20.4,18.8,18.6,18.5,18.2,19.1,19.3,20.1
1965,20,20.1,20.8,20,20.3,18.8,18.5,17.7,18.1,19.3,20,20.4
1966,20.7,20.2,20.8,20.4,20.3,19.1,18.6,18.1,18,19,20,20.9
1967,21.2,20.8,20.7,19.4,19.9,19.3,18,17.9,18.3,19.2,19.6,19.5
1968,19.8,21.1,20.6,19.6,19.8,18.6,18.3,17.8,18.2,19.5,19.8,20.8
1969,21,20.9,21.4,20.7,20.8,19.5,18.6,18.2,18.9,19.6,20.1,20.1
1970,20.7,20.5,20.6,20.2,20.1,19,18,17.8,18.5,19.4,19.8,20.6
1971,20.4,20.5,21.3,20.4,19.7,19.1,18.4,17.8,18.3,19,19.4,20.1
1972,20.3,20.2,20.7,20.2,19.9,18.9,18.5,18.1,18.9,19.7,20.1,20.7
1973,21.3,21.6,22,20.7,20.9,19.4,19.5,19.2,18.6,19.5,20.4,20.8
1974,20.3,20.1,20.7,20,19.9,18.7,17.9,18,18.1,19.6,19.2,21.2
1975,20.6,21.1,20.9,20.5,19.8,18.5,17.9,17.8,18,19.3,19.9,19.9
1976,20.2,19.8,20,19.4,19.4,18.9,18,17.6,18.4,18.9,19.6,20.7
1977,20.3,20,21.3,20.2,20.1,19.1,18.3,18.2,19.1,19.2,20,20.6
1978,20.4,20.2,20.4,20.2,21,18.9,18.6,18,18.6,19.3,19.5,20.2
1979,20.7,20.4,21,20.5,20.5,18.8,18.1,18.2,18.7,19.4,20,20.8
1980,21,20.2,20.3,20.2,20.7,19.3,18.2,18,18.6,19.4,20.2,20.8
1981,20.7,20.4,21.3,20,20,18.7,17.6,17.8,18.1,19.4,20,20.6
1982,20.3,20.2,20.7,20.1,20.1,18.9,18.4,18.2,18.3,19.1,19.8,20.4
1983,20.8,20.7,21.6,20.8,21,19.3,18.5,18.5,19,19.3,19.7,20.8
1984,20.9,21.5,21.8,19.8,19.9,19.8,18.6,18.7,18.9,19.7,19.8,21.7
1985,21.8,20.3,21.1,21.2,19.9,19.6,18.3,18.3,18.7,19.7,20.4,20
1986,20.5,20.3,20.6,21.2,20.5,18.5,19.1,18.1,18.1,19.7,20,20.9
1987,21.1,21.3,20.4,21.6,20.9,20.3,19.9,19.4,18.7,19.7,20.5,21.8
1988,21,20.9,21.9,20.6,21.4,19.4,18.2,17.9,18.5,20,20.5,20.6
1989,20.6,21.5,21.8,20.1,20.3,20,18.3,18.6,18.7,19.9,20.2,20.3
1990,20.4,20.4,21.5,20.7,20.6,19.6,18.9,18.7,18.8,19.6,20.3,20.5
1991,20.4,21.2,21.3,20.7,20.7,19.2,18.4,17.8,18.2,18.7,19.7,20.5
1992,20.7,20.4,20.9,20.8,21.4,19.5,18.6,17.9,18.6,19.3,19.7,20.2
1993,21,21.1,21.9,20.9,20.6,19.6,18.4,18.5,19.2,19.9,20.2,21
1994,21.1,20.7,21.9,21.4,20.8,19,19.1,18.2,19.3,19.8,20.2,21.4
1995,21.1,21.1,21.8,20.7,20.8,19.4,19.2,18.6,18.9,19.8,20,20.7
1996,21,21.2,21.7,20.4,20.6,19.4,18.8,18.4,18.8,19.9,20,21.5
1997,21.6,20.9,21,20.4,20.3,19.5,18.6,18.3,18.9,20.2,20.8,21.3
1998,21.8,22,22.8,21.6,21.4,19.7,19.2,18.4,19,19.9,20.7,21.6
1999,21.4,21.3,21.4,21.2,20.4,19.1,18.7,17.9,18.5,18.9,20,21.6
2000,20.2,20.3,21.4,20,20.9,19.1,19.1,18.7,18.3,19.4,19.8,19.9
2001,20.3,21.1,21.3,20.3,21,19,18.7,18.4,18.9,19.5,20.3,21.1
2002,20.1,20.6,21.3,21,20.8,19.4,19,18.5,18.8,19.7,19.9,21
2003,21.2,21,21.5,20.9,21.1,19.3,18.7,18.5,19,19.6,20.4,21.2
2004,20.6,20.5,21.4,20.6,20.5,19.3,18.3,18.1,18.7,19.7,20.4,21
2005,21.4,21.5,22.2,21,21,19.4,18.6,18.2,19,19.8,20.4,20.7
2006,20.9,21.1,21.6,20.5,20.6,19.2,18.6,18.6,18.8,19.9,20.5,21.2
2007,21.1,21,21.2,20.6,20.5,19.5,18.5,18.5,18.5,19.5,20.3,21
2008,20.9,21.4,21.3,20.4,20.7,19,18.7,18.3,19.2,19.8,20.8,21.2
2009,21.2,20.6,21.6,20.8,20.6,19.7,19.2,18.7,19.4,20.3,21,21.7
