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