1901,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1902,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1903,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1904,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1905,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1906,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1907,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1908,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1909,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1910,18.3,17.8,17.6,17.6,17.8,17.3,17.3,17.9,18.1,18.2,18.4,18.2
1911,18.3,17.8,17.5,17.6,17.8,17.4,17.4,18,18.2,18.3,18.5,18.3
1912,18.4,17.9,17.7,17.8,17.9,17.3,17.4,17.9,18.2,18.3,18.5,18.3
1913,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.4,18.6,18.3
1914,18.4,17.8,17.6,17.7,17.9,17.3,17.4,18,18.2,18.3,18.5,18.3
1915,18.4,17.9,17.6,17.7,18.2,17.6,17.6,18.3,18.3,18.6,18.6,18.4
1916,18.4,17.8,17.6,17.9,18,17.4,17.5,18,18.3,18.3,18.5,18.2
1917,18.2,17.6,17.5,17.6,17.8,17.3,17.4,17.9,18.1,18.2,18.4,18.2
1918,18.2,17.7,17.4,17.6,17.7,17.3,17.5,18,18.2,18.4,18.5,18.3
1919,18.3,17.8,17.6,17.7,17.9,17.3,17.3,18,18.2,18.3,18.5,18.3
1920,18.3,17.8,17.6,17.7,17.8,17.3,17.3,17.9,18.1,18.3,18.5,18.2
1921,18.3,17.7,17.4,17.5,17.7,17.3,17.3,17.9,18.1,18.2,18.4,18.3
1922,18.3,17.8,17.6,17.7,17.9,17.4,17.4,18,18.2,18.3,18.5,18.3
1923,18,17.8,17.6,17.5,17.6,17.5,16.9,17.9,18.3,18.1,18.5,18.1
1924,18.8,17.8,17.8,17.8,18,17.2,17.3,18,17.8,18,18.2,18.2
1925,17.9,17.3,17.1,17.5,17.9,17.2,17.3,17.8,18.2,18.4,18.4,18.3
1926,18.5,18,17.9,18.1,18.1,17.7,17.4,18,18.2,18.3,18.6,18.1
1927,18.1,17.6,17.6,17.7,17.9,17.4,17.1,18.1,18.2,18.1,18.7,18.5
1928,18.3,17.9,17.4,17.8,17.9,17.4,17.3,18,18.2,18.3,18.5,18.1
1929,18.5,17.9,17.4,17.8,17.8,17.3,17,18,18.3,18.3,18.6,18.5
1930,18.6,17.8,18.1,17.8,17.8,17.5,17.5,18.1,18.6,18,18.7,18.6
1931,18.6,18,18,18.2,17.9,17.3,16.9,18.1,18,18.6,18.7,18
1932,17.8,17.6,17.4,17.9,17.3,17,17.2,17.6,18.1,17.8,18.4,18.1
1933,17.9,17.7,17.2,17.5,17.7,17.1,17.4,18.1,18.7,18.3,18,17.8
1934,18.2,17.6,17.5,18.1,17.9,17.3,17.1,18.5,18.4,18.1,18.4,18.4
1935,18.3,17.4,17.7,17.8,17.8,17.5,17.7,18,18.6,18.3,18.6,18.4
1936,18.3,18.7,17.9,18.4,18.3,17.7,17.4,18.4,19,18.6,18.8,18.6
1937,18.4,17.8,17.7,18.2,18.3,17.4,17.4,18,18.4,18.7,18.6,18.5
1938,18.4,17.9,17.5,17.6,17.9,17.5,17.6,17.9,18.6,18.5,18.8,18.5
1939,18.7,17.7,17.5,17.9,18.3,17.3,17.8,18,18.2,18.6,18.5,18.3
1940,18.4,18.1,18.4,17.8,18.4,17.7,17.6,18.1,18.7,18.5,18.8,18.4
1941,19.1,18.7,18.3,18.3,18.4,17.5,17.9,18.4,18.8,19,19.4,19.3
1942,18.7,18.3,17.7,18,18.1,17.4,17.7,18.2,18.7,18.2,18.7,18.2
1943,20,17.7,19.7,19.2,17.7,17.3,18.1,18.1,19,19.9,18.8,20
1944,19.8,19.4,18.5,19.1,18.9,17.9,19.8,19.6,20.1,19.7,19.6,19.5
1945,19.8,19.3,18.9,17.7,17.6,17.9,18,19,20.3,19.4,20,19.1
1946,18.5,18.9,18.6,18.7,18.4,18.8,17.8,19.2,19.6,19.4,19.4,18.7
1947,18.6,18.1,18.3,17.8,18,17.3,17.1,17.9,18.5,18.2,18.8,18.8
1948,18.8,18.7,17.7,17.3,18.9,17.9,17.2,18.6,19.2,18.3,19.1,18.7
1949,18,18.3,18.3,18.5,18.2,17,16.5,17.7,17.7,17.6,18.2,17.8
1950,18.7,17.6,17.7,17.6,17,16.6,16.9,18.4,19.2,18.1,18.7,18.4
1951,17.3,17.4,17.5,17.4,18.4,18.2,17.9,18.5,18.7,19.1,19,18.4
1952,18.2,17.9,17.8,17.5,18.1,17,16.9,18,18.3,18.3,18.8,18.2
1953,18.3,17.7,16.9,17.6,18.4,17.9,17.4,18.3,18.3,17.7,18.9,17.6
1954,18.5,17.4,17.5,17.6,17.4,16.7,16.6,17.7,18.3,17.7,18.5,17.9
1955,17.7,17.9,16.9,17,17.7,16.7,16.4,17.3,17.8,17.7,18.2,17.7
1956,17.5,17.8,17.1,17.5,17.4,16.8,17.1,17.9,17.7,17.7,18.1,17.7
1957,18.2,17.6,17.1,17.5,18.8,18.7,18.3,19.3,19.3,19.4,20.3,19.4
1958,19.2,18.4,18.1,17.9,18.3,17.7,17.6,18,18.6,18.6,19,18.3
1959,18.7,18.7,17.5,18.1,18.4,16.5,17.3,17.9,19.1,18.2,18.7,17.9
1960,17.8,17.4,17.3,17.9,18.1,17.3,17.3,18.2,18.8,18.6,18.9,18.5
1961,18,17.6,17.8,17.4,19.3,17.7,17.1,18.6,19.1,18.6,18.1,18.6
1962,18.2,18,16.8,17.4,17.4,16.2,18.2,18.3,19.4,19.1,19,18.5
1963,18.1,16.7,16.9,17.4,18.6,18.7,17.5,19,19.5,19.5,18.9,19.7
1964,20.1,18.6,17.8,17.1,18.3,16.1,16.8,17.3,17.7,18,18.2,17.2
1965,17.4,18.5,17.4,16.6,17.5,17.7,17.6,17.9,18.7,19,18,18.7
1966,19.2,19.3,17.7,17.7,17.7,16.8,17.1,17.5,17.9,17.8,17.6,16.7
1967,17.3,16.6,17,18.1,17.3,15.7,16.4,17.7,17.4,18.2,17.9,18.1
1968,17.8,17,17.2,18.1,17.2,16.5,16.4,18.4,17.1,17.7,18.6,18.4
1969,18,18.3,18.2,17.5,18.2,17.3,18.2,17.8,18.1,17.7,18.7,18.1
1970,17.9,17.2,18.1,18.4,17.2,17.2,17.1,16.8,17.2,18.1,17.6,17.8
1971,17.4,16.6,15.9,17.2,16.5,16.7,16.5,16.4,17,17.1,17.3,18.1
1972,17.6,17.5,17.1,17.4,17.5,18.4,18.8,17.8,18.5,18.5,18.8,18.4
1973,18.7,18.3,17.8,17.7,17.6,16.4,16.3,16.8,16.1,17.1,17.3,16.5
1974,17.3,16.8,16.9,17.4,17.5,16.5,16.6,16.5,16.3,16.7,17.4,17.5
1975,16.9,16.4,16.8,17.3,16.5,16.7,14.9,16.6,16.4,16.8,16.3,15.7
1976,16.4,15.9,15.9,16.6,17.2,17.5,18,18.4,18.3,17.4,18.2,17.9
1977,18.3,17.7,18,17.4,17.5,17.1,17.5,18,18,18.7,19.3,19
1978,18.7,19.1,16.8,16.2,17.6,17,17.1,18,18.3,18.2,19.1,17.8
1979,18,18.3,17.6,18,18,17.6,18,17.7,17.6,18.6,18.1,18
1980,17.8,16.6,18,18.2,18,17.6,17.4,17.7,17.9,17.6,17.7,17.4
1981,18.5,18.2,18.2,17.9,18.1,17.5,17.4,18,18.8,18.7,18.4,19.1
1982,17.5,17.6,17.8,17.7,17.6,18.6,17.6,19,18.9,18.2,19.4,19.2
1983,19.8,19.6,18.9,18.5,19.1,19,18.9,19,19.3,18.7,19.8,18.1
1984,17.7,17.1,17.7,17.7,17.5,17.4,16.8,18,17.8,18.5,18.1,19
1985,17,18.7,18.1,18.4,18.2,18.1,17.1,17.4,18.3,18.2,17.9,18.1
1986,18.5,16.8,17.7,18,18.4,17.6,17.8,18.7,18.8,18.1,18.6,19.5
1987,20.1,19.6,18.7,18.8,18.5,19.4,18.4,18.9,19.9,18.7,20,20.3
1988,19.3,18.5,19.2,17.8,18.6,17.7,16.9,18.1,18,18.1,18.1,17.2
1989,17.6,17.2,17.9,18.6,17.5,17,16.9,18.1,18.2,18.6,19.2,18.1
1990,19.1,17.5,18.1,18,18.1,18.1,17.6,18,19.1,18.4,19.6,18.9
1991,18.4,18.5,17.7,18.4,18.1,18.2,17,16.9,18.1,19.3,18.9,18.6
1992,19,18.1,18.1,18.2,18,18.6,16.3,17.6,18.1,18.8,18.6,18
1993,17.7,17,17.1,17.4,17.9,18.4,18.1,18.3,18.2,18.8,18.5,18.7
1994,17.8,17.7,17.4,17.5,17.8,17.8,17.7,17.6,18.6,18.6,18.8,18.6
1995,18.9,18.1,17.7,17.1,18.2,18.1,18.1,18.6,18.7,18.6,18.7,17.8
1996,17.4,16.9,17,17.2,17.8,17.3,16.7,17.8,18.5,17.3,18.6,18.2
1997,16.7,17.7,16.9,17.7,18.1,17.8,18,18.5,18.8,18.3,18.4,19.5
1998,19.4,19.3,17.8,18.6,18.7,17.7,17.7,18.3,18.7,18.7,18.8,18.3
1999,17.8,16.8,17.6,17.4,17.4,17.6,17.1,18,17.7,18,18.5,17.4
2000,17.2,16.1,15.8,16.2,17.7,17.7,17.7,18.3,17.9,18.9,19.1,18.4
2001,18.7,18.5,16.8,17.5,16.9,16.1,16.8,17.9,17.3,18,18.1,17.8
2002,17.9,17.8,17.6,17.8,18.3,16.5,17,17.5,17.9,17.7,18.3,18
2003,18.5,17.8,17.2,16.9,17.6,16.5,17,17.6,17.6,17.8,18.1,18.1
2004,16.7,17.1,16.7,16.7,16.9,15.9,16.5,17.1,17.5,19.1,18.2,18.8
2005,18,16.9,15.7,17.2,17.2,16.2,17.1,17.5,17.4,16.5,17.3,16.8
2006,17.6,17.1,16.2,16.3,16.8,17,16.7,17.6,18.2,17.9,18.5,18.1
2007,18.7,18,16.4,17.1,16.7,15.6,16.7,16.6,17.2,16.3,17.3,16.8
2008,17.2,16.9,16.6,16.9,16.6,16.3,16.8,17.5,17.8,17.7,17.6,17.1
2009,17.5,17.5,15.8,18.6,18.2,18.2,18.6,19,19.4,19.5,19.4,19
