1901,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1902,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1903,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1904,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1905,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1906,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1907,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1908,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1909,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1910,17.3,17.3,17.5,17.6,17.3,16.4,15.7,15.7,15.9,16.8,16.9,16.9
1911,17.3,17.2,17.4,17.6,17.4,16.6,15.8,15.9,16,16.9,17.1,17.2
1912,17.4,17.5,17.7,17.9,17.4,16.4,15.8,15.8,16.1,17,17,17.1
1913,17.4,17.3,17.6,17.7,17.4,16.5,15.9,15.9,16.1,17.2,17.3,17.2
1914,17.4,17.4,17.5,17.7,17.4,16.5,15.8,15.9,16.1,17,17.1,17.2
1915,17.4,17.5,17.6,17.8,17.8,16.7,16,16.1,16.2,17.2,17.1,17.2
1916,17.3,17.3,17.5,17.8,17.6,16.6,16,15.9,16.2,17,17.1,17
1917,17.2,17.1,17.4,17.6,17.4,16.5,15.9,15.8,16,16.9,17,16.9
1918,17.1,17.2,17.4,17.6,17.4,16.5,16.1,15.9,16.1,17.1,17.1,17.1
1919,17.4,17.4,17.5,17.8,17.6,16.4,15.7,15.8,16,16.9,17,17
1920,17.3,17.3,17.5,17.6,17.3,16.4,15.6,15.8,16,16.9,17,16.9
1921,17.3,17.2,17.3,17.5,17.3,16.5,15.7,15.8,16,16.9,17,17.1
1922,17.3,17.3,17.5,17.7,17.5,16.6,15.9,15.9,16.1,17,17.1,17.1
1923,17,17.3,17.5,17.5,17.2,16.7,15.4,15.8,16.2,16.8,17.1,16.9
1924,17.8,17.3,17.7,17.8,17.6,16.4,15.8,15.9,15.7,16.7,16.8,17
1925,16.9,16.8,17,17.5,17.5,16.4,15.8,15.7,16.1,17.1,17,17.1
1926,17.5,17.5,17.8,18.1,17.7,16.9,15.9,15.9,16.1,17,17.2,16.9
1927,17.1,17.1,17.5,17.7,17.5,16.6,15.6,16,16.1,16.8,17.3,17.3
1928,17.3,17.4,17.3,17.8,17.5,16.6,15.8,15.9,16.1,17,17.1,16.9
1929,17.5,17.4,17.3,17.8,17.4,16.5,15.6,15.9,16.2,17,17.2,17.3
1930,16.7,17.3,17.4,17.8,17.4,16.4,15.8,15.6,15.8,17,17.4,17.2
1931,17.5,17.7,17.8,18,17.9,16.9,16.1,15.8,16.3,16.9,16.9,17.4
1932,17.7,17.6,17.5,18.2,17.7,16.8,15.7,16.2,16.1,17.1,17.2,17.3
1933,18,17.5,17.6,17.7,17.7,16.7,16.3,15.4,15.8,16.4,16.9,16.8
1934,16.8,16.9,16.9,17.3,16.9,16.7,15.6,15.6,16.3,16.5,16.8,17
1935,17,16.9,17.6,17.3,17.2,16.6,15.6,15.8,15.4,17,17,17.2
1936,17.3,17.1,17.8,17.6,17.5,16.3,15.5,15.3,15.8,16.7,17.4,16.8
1937,17,17.2,17.5,17.3,17.1,16.6,15.9,15.9,16,16.6,16.9,16.9
1938,17.1,17.2,17.2,17.5,17.3,16.3,15.7,15.7,15.7,16.8,16.8,16.9
1939,16.7,17.1,17.3,17.2,17.2,16.5,15.6,15.9,16,16.7,17.1,17.1
1940,16.4,16.7,16.3,17.7,17.2,16.3,15.7,15.9,15.7,16.7,16.7,16.3
1941,17,17.4,17.5,17.5,17.6,16.5,15.6,16,16.3,17.3,17.4,17.7
1942,17.2,17.1,17.4,17.4,16.9,15.9,15.4,15.3,15.8,16.8,17,16.8
1943,18.9,16.9,18.9,18.8,17,16.1,16.8,15.2,15.9,17.9,16.8,18.3
1944,18.3,18.2,18.2,18.7,17.9,17,17.8,16.9,17.5,17.6,17.7,17.7
1945,18.2,18.6,18.5,17.2,16.8,17.1,16,16.6,17.1,17.8,18,17.4
1946,16.7,17.7,18.1,18.5,17.9,17,16.3,16.1,16.5,17.3,17.7,17.3
1947,17.3,17,17.3,17.4,17.3,16.5,15.8,15.9,16.3,16.9,17,16.9
1948,17.4,17.1,17.4,17.8,18.4,16.9,16.1,16.5,16.7,16.7,17.3,16.9
1949,17.2,17.9,18.1,17.3,17,16.1,15.2,15.6,15.2,16.1,16.8,16.5
1950,16,15.9,15.9,16,16.7,14.8,14.3,14.6,16.1,16.4,17,16.8
1951,16.1,16.7,16.8,17.1,17.5,17.4,16.4,16,16.2,16.9,16.9,16.9
1952,16.7,17.1,17.5,17.3,17.7,16,15.4,15.3,15.4,16.4,16.3,16.6
1953,16.3,16.7,16.6,16.9,16.8,16,14.5,16.6,14.9,16.2,16.9,16.2
1954,16.9,17,17,17.5,16.7,15.7,15.1,15.1,15.4,16.2,16.9,16.9
1955,16.4,17,17,16.7,16.9,15.9,15.2,15.1,15.4,16.5,16.4,16.1
1956,16.2,16.6,17.2,17.2,16.8,15.9,15.4,15.3,15.5,16.4,16.3,16.7
1957,16.6,16.7,16.8,17,18.1,17.1,16.8,16.6,16.6,17.3,16.9,17.6
1958,16.4,17.2,17.2,17.4,17.4,16.7,15.6,15.4,15.6,16.5,16.3,16.9
1959,17.6,16.4,17.2,17.4,16.8,16.1,15.3,15.6,15.4,16.4,16.6,16.9
1960,17,16.9,16.5,16.9,16.7,15.5,15.3,15.1,15.3,16,16.5,17.2
1961,16.5,16.6,16.5,17.1,18.1,16.4,16.2,15.7,16,16.9,17.6,17.2
1962,17.6,17.6,17.2,17.2,17.3,15.6,16.2,16.2,16.1,17,17.5,17.3
1963,17,16.7,16.9,17.2,17.3,16.8,16.2,16.1,15.9,16.4,17.2,17.5
1964,17.6,18.3,17.1,17.7,17.6,16.6,15.9,15.6,15.4,16.6,16.9,16.7
1965,17.3,16.4,16.6,17.3,16.9,15.4,15.5,14.8,15.3,16.6,16.4,16.7
1966,17.1,16.7,16.9,17.6,17.4,16.4,16.3,15.7,15.7,16.6,16.6,16.6
1967,17.2,16.8,17.1,17.3,17,15.4,15.2,14.6,15,16.1,16.3,16.4
1968,16.3,16.5,17,17.3,16,15.7,15.3,15.7,16.4,16.1,15.7,16.2
1969,16.7,17.2,17.4,18.2,17.7,16.6,14.9,15.1,15.4,16,16.3,16.2
1970,16.8,16.9,17.7,17.3,16.8,16.3,16,15.5,15.5,16.4,16.1,16.7
1971,16.9,16.6,16.5,16.6,16.6,16.1,15.5,15.7,15.9,16.2,16.3,16.8
1972,17.1,17.2,17,18.2,18.7,17.5,17,17.4,16.5,17.8,17.2,18.2
1973,17.2,17.2,17.5,17.5,17.1,17.1,15.1,15,16.3,16.4,16.2,15.6
1974,16.5,16.4,16.4,16.9,16.9,16.7,14.9,15.7,15.5,16.1,16.7,16.5
1975,16.5,16.8,17.2,17.4,17,16,14.9,15.8,15.6,16.4,16.3,16.4
1976,16.3,16.9,17.1,17.3,17.3,16.8,16.1,15.4,15.1,16.6,16.7,16.8
1977,16.8,16.8,17.2,17.2,17,16.5,16.4,16.1,16.1,17.5,17.9,17.9
1978,17.2,17.9,17.3,16.8,17,16.2,15.5,14.4,15.5,16.8,17.5,17
1979,17.2,16.8,17.7,17.3,17.1,16.1,15.6,15.6,15.8,16.6,16.8,16.3
1980,16.7,16.6,17.4,17.8,17.2,16.6,15.6,15.4,15.6,16.8,16.4,16.5
1981,17.5,18,18.4,18.4,18.2,17.4,16,16.2,16.3,17.7,17.5,18.2
1982,17.6,18.2,18.3,18.2,18.2,17.3,16.6,16,16.8,17.5,17.6,17.8
1983,18.7,19.1,18.9,18.9,18.2,17.2,16.9,16.3,16.1,16.8,17.6,17.5
1984,15.7,17.1,17.8,17.9,17,17.2,15.8,16.2,16.2,17.6,16.8,17.2
1985,16.9,16.8,17.7,17.7,17.2,16.5,15.3,15.9,16.4,16.9,16.7,16.9
1986,18.1,17.1,17.9,18.3,17.9,16.7,15.6,16.3,16.2,17.7,17.4,17.9
1987,18,18,18,18.2,17.5,17.3,16.9,16.9,17,17.6,17.7,18.1
1988,18,18.4,18.5,18.7,18.4,16.9,16.3,16.3,16.9,17.3,17.3,17.4
1989,17,16.8,18,18.3,17.5,17.2,16.1,16.5,16.8,17.9,18.1,17.1
1990,18.4,17.8,18.5,18.7,17.7,17.3,16.5,16.1,16.8,17.5,18.2,17.4
1991,17.2,17.7,18.2,18.3,17.9,18,16.8,15.3,16.2,16.7,17.5,17.6
1992,17.9,17.7,17.4,18.2,17.8,17.2,16,16.9,16.3,17,17.1,17.7
1993,17.5,16.8,17,17.3,17.4,17.4,16.4,16,16,17.4,16.9,17.4
1994,16.8,17.1,17.3,17.6,17.4,16.9,16.2,15.5,16.3,17.2,17.3,17.3
1995,17.9,17.6,17.4,17.1,17.7,17.4,16.6,16.5,16.5,17.2,17.1,16.6
1996,16.3,17,17.9,17.9,17.4,16.4,16.5,16.2,16.3,17.5,17.1,17.3
1997,16.7,17.8,18.5,18.3,18.2,17.5,16.3,16.3,17.4,18.7,17.8,18.1
1998,20,18.6,19.8,19.1,18.5,17.6,16.2,16.9,16.6,18,17.3,17.2
1999,16.7,16.9,17.5,17.3,17,16.8,15.7,15.8,15.5,16.7,17.1,16.2
2000,16.3,15.7,15.8,16.3,17.3,17,16.2,16.2,15.9,17.6,17.7,17.2
2001,17.5,17.9,16.7,17.4,16.6,15.3,15.3,15.7,15.3,16.7,16.8,16.6
2002,16.9,17.3,17.4,17.8,17.8,15.8,15.5,15.9,16.1,17.5,18.1,18
2003,17.6,17.4,18,17.5,17.4,16,15.7,15.4,16.3,17.6,16.8,16.9
2004,17.8,18,18.7,17.7,16.6,15.9,15,15.5,15.4,17.7,17.1,17.6
2005,17.4,18,17.9,18,16.9,16.3,15.6,15.4,15.3,16.8,16,15.6
2006,16.7,16.6,17.8,17.4,17.2,16.7,16.7,15.9,16.1,17.7,17,16.9
2007,17.7,17.5,17.7,17.7,17.1,15.5,15.2,14.6,15.1,15.9,16,15.7
2008,16.9,16.6,17.2,16.9,16.5,15.9,15.7,15.5,16,16.7,16.8,16.8
2009,17,17,16.7,18.7,17.8,17.5,17.2,16.9,17.2,17.7,17.9,17.5
