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