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