1901,20,20.5,19.8,19.6,19,17.4,16.5,17.5,18.4,19,18.9,19.7
1902,19.9,19.8,19.9,19.5,19,17.2,17.1,17.1,18.4,18.9,19.4,20
1903,20.3,21.2,19.9,19,18.2,16.9,16.4,16.7,18.2,18.5,18.5,18.8
1904,19.3,19.5,19.2,19,18,17.4,16.2,17,18,18.5,19.2,19.7
1905,19.9,20.5,19.4,19.4,18.7,17.8,16.8,17,18,19.1,19.2,19.5
1906,20,20.3,19.8,19.7,18.6,16.8,16.4,16.8,18.3,18.3,19.2,19
1907,19.6,19.3,20,19,18.5,17.3,16.2,16.9,18.2,18.7,19.2,19.9
1908,20.1,19.9,19.9,19.5,18.8,17.7,16.2,16.6,17.8,18.1,18.7,19.4
1909,19.5,19.6,19.8,18.8,18.8,16.5,16.1,16.5,18.1,18.7,18.7,19.3
1910,19.1,19.5,18.8,19.4,18.1,17.4,16.3,16.9,18,18.4,19.3,19.3
1911,19.4,20.5,19,19.6,18.5,17.1,16.8,17.2,18.5,19.2,19.3,20.4
1912,20.9,20.8,20.5,19.9,19.1,17.8,16.4,17.2,18,18.7,18.5,19.5
1913,19.9,20.3,19.8,19,18.2,17.1,16.7,16.7,17.6,18.7,19.4,20.1
1914,20.2,20.9,20.3,19.5,19.2,17.7,16.9,17.4,18.2,18.5,18.9,20.4
1915,21.1,20.9,21.3,20.7,19.7,17.3,16.7,17.4,17.9,18.9,18.7,20
1916,20.2,20.1,19.8,19.5,18.3,16,15.3,16,18.1,18.3,17.9,19.3
1917,19.6,19.5,19.9,19.1,18,16.9,16.1,16.6,17.2,18.2,18.9,18.5
1918,20,19.9,20.6,19,17.4,18.6,17,18.5,18.8,19.3,19.9,20.8
1919,21.5,22,20.8,19.8,19.5,17.6,16.9,17.1,19.1,19.7,19.8,20.5
1920,20.6,20.9,20.4,19.9,18.7,17.2,17.1,17,18.7,19.7,20.3,20.9
1921,20.4,20.1,20.3,19.3,18.7,15.4,15.7,16.4,17.8,18.8,19.6,20.9
1922,21.1,21.2,20.7,20.2,18.7,17.6,17.1,17.1,18.8,19,19.7,20.5
1923,19.6,20.1,19.9,19.1,18.9,17.7,16.9,17.5,18.8,19,20,20
1924,21.4,20.6,20.3,19.9,18.7,17.3,16.6,16.9,18,18.8,19,19.5
1925,19.7,19.3,19.3,19.6,19.4,17.8,16.5,18.1,18,19.8,19.8,20.8
1926,21.7,21.4,20.2,19.8,19,18,16.7,17.6,19.2,20.7,21.2,21.5
1927,21.4,21.1,21,19.8,18.9,17.6,16.7,17.5,19.4,20.7,21,21.8
1928,21.6,21.8,20.2,19.8,19.8,17.8,16.7,17.5,19.1,19.9,21.2,21.5
1929,21.7,21.3,20.9,19.8,19.2,17.9,16.7,17.3,18.8,19.9,20.6,21.3
1930,20.8,20.9,20.2,19.8,18.7,17.8,16.7,16.9,18.1,20.1,20.6,21.9
1931,21.7,21.6,20.4,20.2,19.4,17.9,16.5,17.7,18.8,20.3,21.3,21.1
1932,21,21.4,20.6,19.8,18,16.9,17.2,17.6,19,20.2,20.6,21.2
1933,21.3,20.9,20.8,19.7,18.8,17.4,16.4,17.3,19.2,19.3,20.3,21.4
1934,20.6,20,20.8,19.7,19.1,17.9,16.7,16.8,18.1,20.1,20.3,21.2
1935,21,21,20.9,19.6,18.6,17.5,16.7,16.9,18.8,20.5,20.6,21.5
1936,21.2,21.5,20.2,19.8,19.6,17.4,16.7,17.2,19,20.2,20.3,21.3
1937,21,20.5,20.8,20.8,19.6,18.8,18.3,18.9,19.6,20.1,21.2,21.4
1938,21.4,21.1,20.9,21,19.7,18.1,17.8,18.4,19.8,19.8,20.8,21.1
1939,21,21,21,21.6,19.8,19.3,18.2,17.5,19.2,20.8,20.5,20.9
1940,21.2,22.2,21.6,20.8,20.3,18.9,18.3,18.1,20.1,21.2,21.7,21.1
1941,21.9,21.8,22.2,21.2,20.9,18.3,18,18.9,20.3,21.7,22.4,22.4
1942,22.6,23,21.9,21.7,20.7,19.7,18.8,19.9,20.3,21.9,22.4,21.9
1943,23,22.2,22,22,21.2,19.7,18.9,19.2,19.7,21.4,22.4,21.8
1944,22.3,21.5,20.5,22.1,21.4,20.1,17.9,19,20.8,21.5,21.3,22.3
1945,22.6,22,22.2,22.1,21.1,17.2,18.7,19.6,20.6,21,21.6,21.7
1946,22.3,22.9,21.9,19.9,19.2,19,16.6,18.4,19.8,20.9,19.4,19.1
1947,22.2,22.4,21.7,21.6,20.7,16.8,15.9,16,19.8,20.1,20.3,19.3
1948,21.7,20,19.1,19,19.6,18,16.4,18.2,19.2,19.8,20.3,20.2
1949,22.5,19.7,19.9,18.9,19.9,18.3,16,17.7,19.3,20.3,21.1,21.6
1950,19.8,20,19.3,19.4,19.3,18,16.4,18.3,19.7,20.2,21.1,19.2
1951,19.9,19.4,19.6,18.9,19.4,17.8,16.9,17.2,19,19.8,19.8,20.4
1952,20,19.4,20.5,18.3,17.7,14.4,14.6,15.3,16.7,19.2,19.1,19.1
1953,19.3,20.2,19.3,19,17.4,16.7,14.6,17,19.1,19.6,19.2,20.2
1954,19.9,19.8,19.1,19.3,17.8,17.2,16.2,18.1,18.3,18.3,19,19.5
1955,19.3,19.7,19.2,19.3,17.7,17.4,15.1,16.6,18.6,19.1,20.1,19.7
1956,19.4,19.5,19.7,18,16.9,15.8,16,15.9,19.2,18.6,19.4,20.1
1957,19.9,19.8,19.5,18.4,18.5,17,14.5,16.5,17.4,19,19.5,20.1
1958,21.4,21.8,21.1,20.8,19.1,19.8,19.9,17,20,20.6,19,20.8
1959,21,21.4,21.2,21.2,19.6,19.7,19.1,15.1,17.2,18.4,19.2,19.9
1960,21.6,20.9,20.2,18.3,16.3,19.1,17.7,19.7,20.3,19.6,17.9,20.5
1961,21.2,20.9,20.9,20.3,19.5,16.6,18,19.1,20.2,20.6,20.5,20.3
1962,20.5,19.8,20.1,20.9,19.1,17.8,15.7,17.8,19.7,19.4,21.5,20.5
1963,20.3,20,19.2,20.2,19.2,18.4,17.4,19.5,19.8,21.1,20.2,20.9
1964,20.8,21.1,19.8,20,18.6,17.4,16.6,18.7,19.3,19.4,19.6,21.2
1965,21.1,20.8,19.7,19.6,18.6,18,17.2,17.3,18.9,20.7,20.3,20.9
1966,21.2,21,20.1,20,20.5,17.1,15.9,16.2,18.7,19.7,20.2,20.5
1967,20.9,20.5,20.1,19.4,19.5,17.3,16.2,17.8,18.9,19.3,19.6,20.4
1968,20.1,20.4,20.4,19,17.9,17.8,17.1,17.6,18.8,20.2,20.6,20.7
1969,20.3,20.9,21,20.4,20.3,18,17.3,17.7,19.7,20.5,21,20.3
1970,20.2,20.3,19.7,20.2,18.8,17.6,15,17,18.3,19.7,19.8,19.7
1971,20.4,19.7,19.6,18.8,17.3,16.7,16.1,16.6,18.4,18.3,19.5,20
1972,19.6,19.9,19.9,19.2,18.8,17.8,16.8,16.8,18.3,19.7,20.5,20.9
1973,20.6,20.8,20.6,20,18.2,17.1,16,16.7,17.1,19.5,19.9,20.1
1974,20.2,19.7,19.7,19.2,18.1,17.1,16.3,16.6,18.3,19.3,19.9,20.1
1975,20.3,20.7,20.4,20.8,19,18.3,17,18.1,18.2,19.8,20.6,20.4
1976,20.6,19.9,20,19.7,18.4,17.7,17.1,17.3,17.7,19.8,19.6,20.1
1977,20.4,20.3,20.6,19.9,18.2,17.3,17.7,17.1,19,19.5,19.8,20.7
1978,20.2,21,20.1,19.9,18.7,17.2,16.9,16.1,18.5,20,20,20.2
1979,21,20.7,20.4,19.7,18.7,16.2,17,17.8,19.3,19.8,21,20.7
1980,21,21,20.8,20.1,18.7,17.2,16.7,17.8,18.3,19.6,19.8,20.7
1981,20.2,19.8,19.7,19.4,19.4,16.8,16.3,16.4,17,18.5,19.6,20.6
1982,20.7,19.9,20.1,20,18.5,18.5,17.6,16.7,18,19.2,20.1,20
1983,21.6,21.4,20.6,21.4,19.6,16.6,17.3,17.2,18.1,19.6,20.1,20.7
1984,20.3,19.9,20.3,19.6,18.7,17.7,16.9,16.5,17.8,21,18.9,21
1985,20.8,19.8,21.1,19.2,19.7,16.9,17.4,16.7,18.3,18.9,19.6,20.6
1986,20.4,20.4,20.2,20.4,19.3,17.5,16.4,17.3,17.9,18.6,19.4,20.6
1987,21,20.3,20.1,20.4,18.8,17.5,17.8,16.9,18.8,20.3,20.3,20.8
1988,20.9,20.7,21,20.7,18.7,17.1,14.8,17.4,18.8,19.1,19.4,20
1989,19.5,19.8,18.9,19.6,18,16.7,15.9,17.5,18,18.7,19.4,21
1990,20,20.2,19.7,20,19.1,17.2,16,15.9,17.3,19.7,20,20.1
1991,20.1,20.6,20.3,20.2,19.1,17.8,16,16,18.3,19.2,19.5,20.3
1992,20.9,21.2,21.6,19.9,19.7,18.6,15.1,16.9,16.7,18.6,18.7,19.5
1993,20,20.5,20.8,19.8,18.7,17.3,16.6,15.9,17.7,19.2,19.5,20.1
1994,20.9,20.8,21.5,20.3,19.6,18.2,17.3,18.1,18.8,19.6,20.5,20.7
1995,21.5,21.3,20.6,19.6,17.4,18.2,16.9,17.9,19.3,20.6,20.5,21.1
1996,20.1,20.5,20.5,20.3,19.6,16.4,17.3,17.7,18.6,19.9,19.5,20.5
1997,20.6,20.2,19.9,20,19.1,17.8,17.9,16.8,19.5,20.5,20.4,21.3
1998,22.4,22.5,22.1,21,20,17.1,17.4,17.6,18.3,19.5,19.5,20.4
1999,21.1,20.2,19.8,19.4,18.4,17.2,16,16.3,20.2,18.9,20.4,19.8
2000,20.2,20.1,19.8,20.5,19.6,17.3,15.4,17.9,19.1,19.1,20.8,20.5
2001,20.5,20.3,19.9,20.4,18.5,16.8,17.2,17.6,18.9,20.1,21.2,20.6
2002,21.1,20.4,20,20.1,19.1,17.6,16.1,17.8,18.6,20,19.7,20.3
2003,20.7,20.4,20.6,19.9,19,18.5,16.9,16,18.4,19.3,20,20.6
2004,21,20.5,20.5,20.2,18.7,16.8,16.3,16.5,18.7,19.7,20.2,20.6
2005,21.4,20.7,20.5,20.3,19.4,19,16.9,18,17.9,18.7,19.8,20.9
2006,20.5,20.5,20.9,20.3,18.7,18.6,17.5,16.5,19.2,20,19.9,20.1
2007,21.2,20.9,20.4,20.3,18.2,18,16.7,17,17.7,19.6,20,20.7
2008,20.5,20.4,20,19.9,18.2,16.3,17.6,18.5,17.6,19.5,20.2,20.4
2009,20.5,20.3,20.3,20.3,19.4,17.5,17.5,17.8,18.4,20.2,20.7,20.4
