1901,19.7,20,19.2,19.6,19.3,18.5,18.1,18.8,19.4,19.6,19.6,19.2
1902,19.6,19.5,19.3,19.5,19.3,18.4,18.5,18.6,19.4,19.6,19.9,19.5
1903,19.9,20.4,19.3,19.2,18.8,18.2,18,18.3,19.2,19.3,19.3,18.7
1904,19.2,19.3,18.8,19.1,18.7,18.5,17.9,18.5,19.1,19.3,19.8,19.2
1905,19.6,20,18.9,19.4,19.2,18.8,18.3,18.5,19.1,19.7,19.8,19.1
1906,19.7,19.9,19.2,19.6,19.1,18.1,18,18.4,19.3,19.1,19.8,18.8
1907,19.4,19.2,19.4,19.1,19,18.4,17.9,18.4,19.2,19.4,19.7,19.4
1908,19.7,19.6,19.3,19.5,19.2,18.7,17.9,18.2,18.9,19,19.4,19.1
1909,19.3,19.3,19.2,19,19.2,17.9,17.8,18.1,19.2,19.4,19.4,19
1910,19.7,19.8,19.4,18.8,18.1,17.1,17,17.5,17.9,18.5,19.2,18.5
1911,19.5,19.6,18.4,18.8,18.2,18.2,17.9,18.4,18.7,19.5,20.2,20.2
1912,21.1,21.3,20.7,20.7,18.8,17.6,17.4,17.8,19.1,19.7,19.2,19.5
1913,20.4,19.8,19.8,19.6,18.7,17.8,18.2,18.8,19.4,20.8,21.1,20
1914,20.7,20.6,19.8,19.6,18.6,17.7,17.8,18.7,19.1,19.8,19.8,20.3
1915,21,21.5,20.3,20.6,19.1,17.9,18.4,18.7,18.5,19.1,19.2,20
1916,20.2,20.8,20.1,20.8,18.9,16.4,16.1,17,19.1,18.8,18.6,20.2
1917,20.8,21.3,20.7,20.8,19.9,19.2,17.7,17.8,18.5,18.9,20.3,18.7
1918,20.1,19.5,19.7,19.7,16.1,20.8,19.4,21,19.5,19.4,19.5,19.4
1919,20.7,20.9,19.7,20.1,19.9,17.6,17.3,18,19,19.3,19.7,19.1
1920,19.9,19.9,19.6,19.3,18.1,17.2,16.6,17.7,18.6,19.4,19.4,18.5
1921,18.8,19,18.8,18.4,18.6,15.3,14.7,17.1,17.3,18.3,19.3,18.8
1922,20,20,19.5,20,19.3,18.5,18.5,18.4,19.4,19.6,20.1,19.2
1923,19.5,19.8,19.4,19.3,19.3,18.7,18.4,18.8,19.7,19.6,20.3,19.5
1924,20.5,20,19.5,19.8,19.2,18.5,18.2,18.5,19.2,19.6,19.7,19.3
1925,19.6,19.3,19,19.6,19.6,18.8,18.1,19.2,19.2,20.1,20.2,19.9
1926,20.4,20.2,19.5,19.7,19.3,18.7,18.2,18.8,19.7,20.5,20.7,20.1
1927,20.3,20.2,19.8,19.7,19.2,18.6,18.2,18.8,19.8,20.5,20.7,20.2
1928,20.4,20.4,19.5,19.7,19.5,18.6,18.2,18.8,19.7,20.2,20.7,20.1
1929,20.4,20.2,19.8,19.7,19.3,18.7,18.2,18.7,19.6,20.2,20.5,20.1
1930,20.1,20.1,19.5,19.7,19.2,18.6,18.2,18.6,19.4,20.2,20.5,20.3
1931,19.9,19.7,19.5,19.8,19,18.4,18.1,18.7,19.6,20.4,20.7,20
1932,20.2,20,19.6,19.8,19.5,18.8,18.5,18.9,19.6,20.1,20.1,19.7
1933,19.7,20.1,19.5,19.7,19.2,18.5,18.1,18.5,19.5,20,20.1,19.6
1934,20,19.7,19.5,19.7,19.3,18.7,18.2,18.5,19.4,20.3,20.4,20.1
1935,20.2,20.1,19.7,19.6,18.9,18.6,18.2,18.6,19.6,19.9,20.3,19.8
1936,19.9,20.3,19.5,19.7,19.3,18.4,18.2,18.6,19.6,20.2,20.3,19.9
1937,20.2,20,19.9,20.4,19.8,19.5,19.3,19.8,20.2,20.4,21.1,20.4
1938,20.7,20.4,20,20.6,19.9,19.1,18.9,19.5,20.4,20.2,20.9,20.2
1939,20.4,20.3,20.1,21.1,20,19.9,19.3,18.8,19.9,20.8,20.5,20
1940,20.5,21.1,20.4,20.4,20.3,19.6,19.3,19.3,20.6,21.2,21.5,20.2
1941,21.1,21,21.1,20.7,20.8,19.2,19.2,19.9,20.9,21.7,22.2,21.3
1942,21.6,22,20.9,21.2,20.6,20.4,20,20.8,20.8,21.8,22.1,19.7
1943,23.1,21.3,22.5,22.3,19.9,19.7,20.2,19.7,21,21.9,22.1,21.6
1944,22.2,20.7,20.2,21.8,21.7,20.9,20.4,20.4,22.3,21.8,21.6,21.6
1945,22.1,21.7,21.2,21.5,21,18.7,19.7,20.7,21.8,21.6,22.4,21
1946,21.6,22.1,21.3,20.3,19.7,19.6,18,19.6,20.6,21.2,21.6,19.8
1947,21.4,21.4,20.9,21.1,20.7,18.5,18.1,18.5,19.4,19.7,20.1,18.7
1948,19.8,20.2,19.3,19.7,19.9,18.6,18,18.2,18.8,20.2,20.2,19
1949,21.2,19.9,20,18.9,18,17.4,17.2,17.2,18.2,18.6,19.6,19.2
1950,19.1,18.8,18.2,19,17.7,17.1,17.1,17.7,18.7,19.5,19.7,18.6
1951,19.5,18.5,18,18.4,18.4,18.2,19,18.7,19.5,19.7,19.7,19.4
1952,20,19.7,19.1,18.8,18.8,16.9,17.5,17.8,18.6,19.6,19.2,19.2
1953,19.7,19.6,19.4,19.8,19,17.9,17.5,18.7,19.9,19.6,20,19
1954,19.3,19.3,18.9,19.1,17.8,17.6,16.9,18.1,19,18.9,19.7,18.8
1955,19.8,19.6,18.8,18.9,18.3,18.1,17.2,17.8,18.4,19.8,19.7,19
1956,19.3,18.6,18.8,18.6,18.2,17.7,17.5,18.3,18.9,19.1,19.5,19.2
1957,19.4,19.7,19.6,19.6,20.2,19.2,18.4,19.1,19.3,20,20.3,20.2
1958,20.3,20.4,18.7,19.7,18.4,18.2,18.8,18.2,19.9,20,19.6,19.8
1959,19,19.4,19.4,19.6,18.5,18.9,17.9,18.8,20.1,19.9,21.1,19.5
1960,21.2,20.6,20,19.6,18.8,19.1,19.1,19.3,19.5,20.6,20.6,19.2
1961,20,20,19.5,19.6,19.6,18.6,18.7,18.5,19.2,20.4,19.5,19.2
1962,19.4,19.5,19,19.6,19.4,18.6,18.4,19.1,19.7,20,21.6,19.8
1963,19.4,18.8,19.4,19.2,19.8,18.2,19.3,20.1,19.8,20,20.3,20.3
1964,21,20.3,18.8,19.1,18,17.2,17.3,18.7,19.5,20.1,20.2,20
1965,19.5,19.1,18.8,19.2,18.5,17.8,17.7,19.3,19.6,20.9,20.8,20
1966,20.2,20,19.4,19.7,18.5,18.1,17.4,18.5,19.2,19.5,20.4,19.5
1967,19.7,18.9,18.1,18.7,17.9,17.7,16.7,17.8,18.8,19.4,19.8,19.3
1968,20.2,19.8,18.8,19.6,19.6,18.1,18.9,18.5,19.2,19.8,19.9,19.7
1969,21.1,20.4,20.3,20.7,20.4,19.1,18.6,18.9,19.9,20.8,21.2,20.1
1970,19.8,20.7,19.4,19.9,19.3,18.9,18.3,18.7,19.6,20.3,20.3,19.1
1971,19.6,19.2,19,19.1,19.5,18.4,18.9,18.3,19.2,19.4,20.4,19.4
1972,19.5,20.5,19.5,19.8,19.6,19.4,19,19,19.7,20.7,20.6,20.9
1973,20.2,20.4,19.8,20.1,20,19.5,18.1,18.3,18.9,19.9,19.9,19.2
1974,18.7,18.8,18.7,19.3,18.2,17.5,17.2,17.5,18.4,19.6,20.3,18.5
1975,18.1,19.8,18.1,19.1,18.2,18.3,18.1,18.8,18.2,19.1,19.2,18.7
1976,19.6,19.3,19.2,19.4,19,18.5,18,18.4,18.8,19.7,20.5,20.2
1977,20.8,19.7,20.4,20.6,19.6,18.9,18.8,18.9,19.9,19.9,20.2,20
1978,20,21,20.3,19.9,20.1,18.1,19.5,18.2,19.5,20.3,20.6,19.8
1979,21.6,20,19.6,19.9,20.7,18.8,18.7,19.3,19.9,21,20.8,20.3
1980,21.1,20.4,20.2,19.9,20.2,19.2,18.9,19,19.8,20,20.5,20.4
1981,20.2,19.6,19.5,19.9,20,19.2,18.4,18.1,18.9,19.4,19.4,19.1
1982,19.2,19.6,19.4,20,19.4,19.3,19,18.6,19.3,20.1,20.4,20
1983,21.9,21.5,21,20.8,19.7,19.5,19.3,20,19.9,20,20.4,19.8
1984,19.2,18.9,19.4,19.4,18.1,18.4,18.1,17.6,19.7,21.6,19.9,19.9
1985,19.8,19.3,19.3,19.7,19,16.5,17.3,17.9,18.7,19.4,19.9,20
1986,20.1,19.2,18.6,20.1,18,18.2,17.4,18.5,19.8,20,20.3,19.9
1987,20.2,20.5,21,20.4,18.8,19,17.6,19.5,20.4,21.1,20.4,20.3
1988,20.2,21.1,19.3,19.6,18.5,18.4,18,19.3,19.1,19.8,20.5,20.1
1989,18.9,19.4,19,18.8,18.3,17.5,17.1,18.5,19.7,19.9,20.5,20
1990,19.3,20.8,19.6,19.3,18.5,18.3,17.4,18.3,19.8,20,20.5,19.5
1991,19.8,20.9,19.7,20.3,19.4,19.1,18,18.5,19.6,20,20.2,20.5
1992,21.5,21,21,21.7,21.3,19.6,17.9,18.7,19,19.9,20.4,19.6
1993,20,20.4,20,20.1,20.1,19.6,18.8,18.3,19.3,20.1,20,19.6
1994,20,19.9,19.6,20.3,19.7,19.2,18.1,18.3,19.5,20.4,20.4,20.6
1995,21.1,20.5,19.7,20.4,19.7,19.1,19.1,19.2,20.1,20.2,20.1,20.2
1996,20,20.9,19.6,19.7,19.6,19.5,18.2,18.3,19.4,19.9,19.5,19.6
1997,19.5,20.4,20.5,20.4,20.6,19.6,19.1,18.4,20,20.8,20.6,20.8
1998,21.3,21.3,21.3,21.8,20.3,19.4,19.5,20.1,19.8,20.7,20.4,20.4
1999,19.6,20.2,19.7,19.6,18.5,18.6,18.9,19.1,19.7,20.4,20.5,19.6
2000,19.6,19.5,19,19.2,19.2,18.6,17.8,19.3,19.8,20.4,20.8,19.6
2001,20,20.7,19.4,20,19.1,17.8,18.1,18.7,19.1,20.1,20.2,19.4
2002,20.1,19.9,20.2,20.3,19.7,18.4,17.9,18.9,19.5,20.3,20.1,19.7
2003,20.5,20.5,20.6,19.5,18.7,18.5,18.4,17.6,19.5,20.5,21.1,19.7
2004,20.3,20.3,19.7,20.1,18.8,18.5,18.8,19.1,20,20.6,20.6,20
2005,20.6,20,20.1,20,19.8,18.8,18.4,19.6,19.6,20,19.6,18.9
2006,20.1,19.9,20.3,19.7,18.6,18.8,19.6,19.8,19.8,20,20.6,19.8
2007,21,20.1,19.7,20.1,18.6,18,18.3,18.8,19.1,19.4,19.9,18.9
2008,20,19.9,19.8,19.6,18.4,18.1,19.4,20.1,19.8,20.1,20.6,19.9
2009,20,20.3,19.9,20.1,19.1,18.8,18.7,19.5,20.1,20.5,21.1,20.2
