1901,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1902,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1903,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1904,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1905,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1906,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1907,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1908,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1909,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1910,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1911,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1912,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1913,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1914,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1915,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1916,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1917,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1918,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1919,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1920,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1921,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1922,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1923,17.9,17.6,18.3,18.3,18.7,17.6,17.4,17.3,17.4,17.5,17.5,17.7
1924,17.9,17.8,18.3,18.5,18.7,18.1,17.2,17.9,17.7,17.8,17.9,18
1925,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1926,17.5,17.9,18.3,18.6,18.6,17.9,17.5,17.6,17.9,17.8,17.7,17.8
1927,17.6,17.6,18.2,18.3,18.4,17.7,17.1,17.5,17.4,17.9,17.4,17.7
1928,17.5,17.8,18.1,18.4,18.6,17.8,17.3,17.7,17.7,17.8,17.7,17.9
1929,17.6,17.7,18.1,18.2,18.4,17.6,17.4,17.3,17.5,17.9,17.9,17.6
1930,17.9,17.9,18.5,18.6,18.6,17.8,17.4,17.4,17.6,17.6,17.4,18
1931,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1932,17.9,18,18.3,18.5,18.7,17.9,17.4,17.6,17.8,17.9,17.9,18
1933,18,18,18.4,18.5,18.7,17.9,17.4,17.7,17.8,17.8,17.5,18
1934,17.7,17.8,18.1,18.4,18.7,18,17.6,17.7,17.7,17.9,17.6,18.1
1935,17.7,18,18.3,18.3,18.6,18.1,17.3,17.6,17.9,17.9,17.6,18
1936,18,18.1,18.3,18.4,18.7,18.1,17.4,17.5,17.7,17.7,17.6,17.8
1937,17.8,17.9,18.3,18.5,18.6,17.8,17.3,17.4,17.7,17.8,17.9,17.7
1938,17.8,17.7,18.3,18.5,18.7,17.7,17.3,17.4,17.5,17.8,17.7,18
1939,17.6,17.9,18.4,18.4,18.6,17.9,17.6,17.8,17.8,17.7,17.8,17.8
1940,17.8,17.8,18.3,18.4,18.6,17.9,17.5,17.7,17.6,17.6,17.6,17.8
1941,19.1,19.4,19.2,19.2,19.1,18.3,17.2,17.5,17.9,18.1,17.4,17.8
1942,18.6,19.2,18.6,18.6,18.8,18.6,17.5,17.2,17.5,18.2,18.2,18.3
1943,18.1,17.8,18.3,18.6,18.9,17.8,17.4,17.1,17.5,18,18.4,19.2
1944,18.5,18.3,17.6,18.1,18.3,18.9,17.8,17.4,18,18.3,18.4,18.5
1945,18.6,18.1,19.3,19,18.7,17.4,17.8,17.2,17.7,18,18,17.6
1946,18.6,18.4,18,18.3,19.3,18.1,17.1,16.7,18,18,17.4,18.2
1947,18.7,18.4,18.8,18.3,19.2,18.2,17.6,17.5,17.3,18.2,18.7,18
1948,18.2,18.4,18.2,19.1,19.2,17.9,17.1,17.1,17.6,17.8,17.1,17.6
1949,18.8,18.2,18.8,19.5,18.9,18.4,17.6,17.8,18,17.9,18.4,18.3
1950,18.2,17.2,18.5,18.6,18.3,17.5,17,16.9,17.4,16.4,17,17.7
1951,17.9,17.6,18.1,18.9,18.8,18,17.5,17.8,18.2,18.3,18.3,17.6
1952,18.6,18.2,18.7,18.8,18.8,18,17.1,17.6,17.8,17.9,17.4,18
1953,17.9,18,18,18.7,18.8,17.8,17.4,17.8,17.9,17.8,18.1,18.3
1954,18.3,18,18.6,18.8,18.8,17.6,17.4,17.4,17.9,17.6,17.9,17.7
1955,18,17.7,18.3,18.2,18.4,17.7,17.3,17.3,17.9,17.9,18.1,17.4
1956,17.4,17.3,18.2,18.3,18.7,17.6,17.2,17.7,17.5,17.8,17.7,17.5
1957,17.7,17.3,18.5,18.6,19,18.4,17.8,18,18,18,18.7,18.3
1958,18.9,17.9,19.3,19.4,19.4,18.2,17.8,17.9,18.4,18.6,18.5,18.6
1959,18.2,18.4,18.2,18.8,19.1,17.8,17.5,17.7,18.3,18.1,18.1,18.3
1960,18.1,17.8,18.1,18.5,18.5,17.9,17.2,17.9,18,18.1,18.3,18.3
1961,17.7,18.1,18.9,18.5,19,18.1,17.7,17.7,17.9,18.1,18,17.9
1962,17.6,17.7,18,18.4,18.8,18.1,17.7,18,18.2,18,17.6,17.9
1963,17.1,17.5,18,18.3,18.8,17.8,17.1,17.4,17.8,18.1,18,18
1964,18.3,18.2,18.4,18.6,18.6,17.8,17.2,17.7,17.5,17.6,17.5,17.7
1965,17.2,17.4,18.1,18.3,18.5,17.1,16.4,17.3,18.2,17.8,17.9,17.7
1966,18.2,18.7,18.8,18.3,18.7,18,17.5,17.7,18,18.1,17.4,17.9
1967,17.8,18,18.7,18.7,18.9,17.8,17,17.1,17.5,17.6,17.7,17.8
1968,17.5,17.8,17.3,18.2,18.2,17.7,17.2,17.6,17.3,17.5,18,17.9
1969,17.7,18,18.5,18.7,18.8,17.9,16.7,17,17.9,18.3,18.1,18.1
1970,18.6,18.5,18.7,19,18.8,18,17.5,17.8,17.9,17.6,17.9,18
1971,17.6,17.8,17.8,17.9,18.7,17.2,17.3,17.4,17.3,17.4,17.8,17.7
1972,17.4,17.8,18.3,18.4,19,18.6,17.9,18.1,18.3,18.3,18.1,18.5
1973,18.8,18.7,17.6,18.8,18.9,18.1,17.3,17.7,18,18.2,18.2,17.7
1974,17.5,17.7,18.3,18.6,18.3,18.1,17.4,17.7,16.8,17.8,18,18
1975,17.7,18.1,18.5,18.6,18.8,18,17.7,17.6,17.6,17.8,17.7,18.2
1976,18.1,17.7,18.4,18.4,19,18.1,17.6,17.6,18.3,18.1,18.4,18.4
1977,18.7,18.3,18.3,19.2,19,18,17.8,18.3,18.5,18.4,18.1,18.1
1978,18.2,18.6,19,18.9,19,17.9,17.3,17.8,18.1,18.1,18.1,18.7
1979,18.6,17.4,17.3,17.9,18.4,17.6,17.6,18.1,17.3,17.4,18.2,18.3
1980,18.5,18.2,18.1,19.2,18.5,17.2,17,17.2,18,17.7,17.5,17.9
1981,17.6,17.4,18.4,18.1,18.4,17.4,17.2,17.6,17.7,17.7,17.7,18.1
1982,18.3,17.7,18.4,18.4,18.3,17.9,17.3,17.8,17.8,17.7,18.1,18.2
1983,18,18.9,18.9,18.6,18.8,17.9,18.1,17.8,17.7,18.2,18.1,17.3
1984,17.2,18,18.1,18,17.9,17.4,16.7,17.1,17.3,17.4,17.7,17.5
1985,18.4,17.4,17.7,18,18.4,17.6,17.8,17.8,17.8,17.9,18.2,18
1986,18.2,18,18.3,18.5,18.7,17.6,17,17.8,17.8,18.4,18.2,18.2
1987,18.6,18,18.9,19.3,19.5,18.3,17.7,17.9,17.7,17.9,17.9,18.3
1988,18.1,18.4,18.5,18,18.6,18,17.4,17.5,17.1,17.6,17.4,18
1989,15.6,17.5,17.9,17.9,17.8,17.2,16.8,16.7,17,17.3,17.7,18.2
1990,17,18.5,18.8,19.3,18.8,18.1,17.5,17.5,17.6,17.8,17.8,18
1991,17,18,18.8,18.6,18.8,18.3,17.1,17.1,17.6,18.1,17.9,17.8
1992,17.8,18.4,19,19.3,18.3,18.5,17.7,17.7,17.8,18.1,18.2,18.1
1993,16.9,16.5,18.4,18,18.5,18.4,17.9,19.2,17.4,17.5,19.9,18.6
1994,16.9,18.1,17.9,18.7,19.1,18.1,16.6,17.8,17.9,18.2,18.4,17.9
1995,17.4,17.9,18.4,18.3,19,18.2,17.6,19.2,17.3,18.6,19.6,18.8
1996,18.3,18,17.4,18.6,18.6,17.8,18.1,17.4,17.5,18.5,18.2,18.6
1997,18.9,18.3,18.3,19.1,19.7,18.7,18.3,17.6,19.4,18.7,18.6,18.6
1998,18.3,17.8,18.8,18.5,19.3,18.5,18.2,18.1,17.9,17.9,19.3,18.2
1999,17.8,18.8,18.4,18.4,18.2,18.4,17.3,17.7,17.5,17.4,17.9,18.3
2000,18.5,18.2,18.6,18.9,18.8,18.1,17.5,18.7,18,17.8,19.2,18.4
2001,18.6,20.3,19,20,19.3,18.8,18.5,18.5,18.3,18.6,19,18.5
2002,18,18.3,19.1,19.8,19.1,19.4,19.7,19.3,19.2,18.5,18.9,19.2
2003,18.1,19.2,19.2,20,20.4,18.9,18.3,18.5,19,19.2,19.6,20.5
2004,19.3,18.8,19.5,19,19,18.7,18.5,18.7,18.4,18.6,18.8,18.5
2005,17.5,20.1,20.2,20,19.2,19.3,18.4,18.8,18.8,18.2,19.6,20.9
2006,18.5,19.4,19.4,20.2,17.8,17.8,18.2,18.8,17.4,19.4,19.7,18.9
2007,18.1,19.5,19.7,19.7,19.9,17.7,17.5,17.9,18.6,17.9,17.7,19.2
2008,20,19,19.9,19.4,19,18.7,17.5,18.2,19.3,18.1,19.5,17.8
2009,18.1,19.6,19,19.3,19.9,18.2,19.2,19.4,19.4,19.2,20.4,20.6
