1901,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1902,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1903,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1904,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1905,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1906,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1907,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1908,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1909,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1910,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1911,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1912,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1913,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1914,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1915,17.2,17.5,17.6,17.7,18,17.5,17.1,17.1,17.1,17.5,17.4,17.4
1916,17.3,17.5,17.6,18,17.9,17.4,16.9,16.6,17,17,17.2,17
1917,17,17.1,17.5,17.7,17.6,17,16.7,16.5,16.8,17,17.2,17.1
1918,17.1,17.4,17.2,17.5,17.2,16.9,16.7,16.8,16.8,17.2,17.1,17.1
1919,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1920,17.2,17.5,17.6,17.7,17.6,17.2,16.7,16.6,16.8,17,17.2,17.1
1921,17.2,17.4,17.2,17.4,17.3,17,16.7,16.4,16.8,16.7,17.1,17
1922,17.2,17.4,17.5,17.7,17.5,17,16.6,16.6,16.8,16.9,17.1,17
1923,16.9,17.4,17.5,17.5,17.2,17.3,16.1,16.5,16.9,16.8,17.3,16.8
1924,17.8,17.4,17.9,17.9,17.8,17,16.5,16.5,16.3,16.7,16.9,16.9
1925,16.7,16.8,17,17.5,17.6,16.9,16.6,16.4,16.9,17.2,17,17.1
1926,17.4,17.7,18,18.2,17.9,17.5,16.8,16.6,16.7,17,17.3,16.8
1927,16.9,17.3,17.5,17.6,17.5,17.1,16.3,16.7,16.9,16.8,17.4,17.4
1928,17.2,17.7,17.4,17.8,17.5,17.1,16.6,16.5,16.8,16.9,17.2,16.9
1929,17.4,17.6,17.4,17.8,17.5,17,16.2,16.7,16.9,17,17.3,17.3
1930,16.3,17.4,17.4,17.8,17.4,16.8,16.3,16.1,16.3,17.2,17.5,17.2
1931,17.4,17.9,18.1,18,18.1,17.8,17,16.5,17.1,16.9,17,17.6
1932,18,18,17.6,18.6,18,17.6,16.4,17.1,16.8,17.2,17.5,17.2
1933,18.2,17.6,17.9,17.7,18,17.4,17.2,15.9,16.3,16.3,17,16.8
1934,16.5,16.7,16.6,17,16.8,17.4,16.2,16.1,17.1,16.5,16.8,17
1935,16.9,16.9,17.7,17.2,17.2,17.1,16.1,16.5,15.7,16.9,16.9,17.3
1936,17.3,17,18,17.4,17.5,16.6,16,15.6,16.1,16.5,17.6,16.6
1937,17,17.5,17.8,17.2,17,17.2,16.7,16.6,16.5,16.4,17,16.8
1938,17,17.3,17.2,17.6,17.3,16.8,16.3,16.3,16.1,16.7,16.7,16.7
1939,16.3,17.3,17.5,17.1,17,17.1,16.1,16.7,16.9,16.5,17.2,17.3
1940,15.3,16,15.3,17.9,17.2,16.8,16.5,16.8,16.3,16.7,16.6,15.3
1941,17.2,17.8,17.6,17.3,17.9,17.2,15.9,16.8,17,17.1,17.2,17.4
1942,17.1,17.4,17.3,17.1,16.7,16.2,15.5,15.7,16.4,16.5,16.7,16.7
1943,18,16.5,17.8,18.2,16.8,16,17.4,15.3,15.9,17.5,16.5,17.7
1944,18.1,17.8,18.4,18.9,17.4,17.1,17.6,17,17.4,17.3,17.6,17.3
1945,17.9,18.5,18.2,17,16.6,17.6,16.7,17,17,17.3,17.5,17.1
1946,16.4,17.5,17.8,18.3,18,17.7,17,16.8,17,17,17.4,17.2
1947,17.4,17.3,17.1,17.8,17.4,16.8,16.3,16.4,16.5,17,16.9,17
1948,17.3,17.1,17.4,17.8,18.1,17.2,16.9,17.7,17.4,16.2,17.4,16.9
1949,16.7,17.4,18,17.5,17,16.7,16,16,15.8,16.6,17.2,15.9
1950,15.2,15.8,15.4,15.8,16.8,15.2,14.8,15.5,17.1,16.5,17.3,17.1
1951,16.3,16.8,16.8,17.7,18.2,18.3,16.8,16.8,17.3,17.1,17.2,17
1952,17,17.3,17.7,17.4,17.8,16.9,16.4,16.5,16.5,16.4,16.3,16.8
1953,16.2,17,16.8,17.3,16.7,16.6,15.5,17.9,15.3,16.4,17,16.2
1954,16.6,17.2,17.1,17.2,16.6,15.6,15.4,15.2,15.7,16,16.9,17.2
1955,16.6,17.2,17.3,16.9,17.2,16.4,16.3,16.2,16.4,16.5,16.4,16
1956,15.7,16.4,17.7,17.6,17.2,16.9,16.2,16.6,16.2,16.7,16.5,16.8
1957,16.9,17.2,17,17.2,18.3,17.6,17.8,17.6,17.4,17.5,17.3,17.8
1958,16.4,17.6,17.6,17.7,17.8,17.6,16.2,16.2,16.2,16.4,16.6,16.7
1959,17.6,16.7,17.7,17.6,17.1,16.9,16.1,16.3,16.1,16.7,16.6,17.1
1960,16.9,17.2,16.7,17,17,16.3,16.2,16.1,16.3,16,16.7,17.2
1961,17.5,17.2,16.8,17.5,17.9,17.1,16.6,16.3,16.4,17.2,17.6,17.3
1962,17.6,17.5,17.2,17.4,17.4,16.7,16.8,16.8,16.6,16.9,17.5,17.3
1963,17.5,17.7,17.7,18,17.5,17.1,17.2,17.2,16.8,16.3,16.9,17.3
1964,16.7,18,17.5,18,17.5,16.9,16.1,16.2,16.3,16.4,16.9,16.8
1965,17.9,16.5,17,17.5,17.8,17,16.7,16.1,16.3,16.7,17.1,17.2
1966,17.5,16.9,16.8,17.9,17.6,17.2,17.1,16.8,16.9,17.4,17.5,17.4
1967,17.4,17.9,17.8,17.4,17.7,16.8,16.4,15.8,16.1,16.7,16.5,16.6
1968,16.6,17.1,16.9,17.1,16.5,16.3,16.9,16.5,17.7,16.4,15.9,16.1
1969,16.4,17.3,17.6,18.3,18.2,17.9,16.2,16.6,16.8,16.6,16.8,16.6
1970,17.3,17.7,17.4,17,17.3,17.1,16.8,16.8,16.8,16.9,16.7,17
1971,16.5,16.7,16.5,16.5,16.9,16.8,16.2,16.5,16.5,16.3,16.5,16.7
1972,17.4,17.4,17.2,18.7,19.1,18.1,17.8,18.3,17.1,17.9,17.2,18.2
1973,17.6,17.3,17.8,17.3,17.1,17.4,15.9,15.6,17.3,16.5,16.7,15.7
1974,16.3,16.4,16.4,16.6,17,17.4,15.6,16.9,16.4,16.4,17.1,16.5
1975,16.8,16.9,17.2,17.3,17.1,16.6,15.8,17.3,16.5,16.5,16.7,16.5
1976,16.5,17.2,17.7,17.4,17.4,17.3,16.6,16.1,16.1,16.9,17,17
1977,16.6,17.2,17.6,17.2,17.3,17.3,16.8,16.7,16.8,17.2,17.4,17.6
1978,16.7,17.6,17.7,17.1,17.1,16.9,16.2,15.4,16.2,17.3,17.6,17.4
1979,17.2,17.2,17.7,17.7,17.6,17.1,16.2,16.7,17,16.7,17,16.2
1980,16.6,17.4,17.4,17.4,17.4,16.9,16.6,15.7,16.3,17.1,16.8,16.6
1981,17.1,17.5,18,18,17.3,17.3,16.6,16.5,16.7,17,17.5,17.4
1982,17.9,18.6,18.4,18.3,18.2,17.6,17.5,16.9,17.6,17.9,18.3,18
1983,18.2,19.1,19,18.6,18.5,18.1,17.7,17.2,16.5,16.8,17.1,16.8
1984,15.4,17.2,17.8,17.4,17.1,17.3,16.3,16.1,16.6,16.9,17,16.8
1985,16.6,16.4,17.5,17.3,16.8,16.7,15.7,16.4,16.5,16.8,17.1,16.6
1986,16.9,17.4,17.3,17.7,17.1,16.9,16.3,16.8,16.9,17.6,17.2,17.6
1987,17.4,17,17.8,17.7,17.2,17.4,17,17.4,17,17.7,17.7,17.5
1988,17.7,18.3,18.1,18.5,18.3,17.2,17.1,16.1,17.4,17.4,17.2,17.9
1989,16.9,16.7,17.1,17.9,17.3,17.1,16.9,16.3,16.7,17.3,18.3,17
1990,17.5,17.5,18.6,18.5,17.9,17.8,17.1,16.7,16.8,17,17.2,16.9
1991,17,17.7,18.3,17.8,18.3,18.4,17.6,17,17,16.7,17.9,18.1
1992,17.6,18.1,18.2,18.5,18,17.8,17.4,17.8,16.9,16.9,17.5,18
1993,18,17.6,17.1,17.7,17.9,18.2,17.6,16.8,17,17.4,17.5,17.6
1994,17.1,17.4,17.1,17.6,17.6,17.5,16.9,16.4,17.2,17.4,18.1,17.7
1995,17.6,17.9,18,18.3,18.3,17.6,16.9,16.6,18.1,17.8,18,17.5
1996,16.9,17.9,17.8,18,17.5,17,17.7,17.5,17,17.7,17.7,17.9
1997,17.3,18.2,18.8,18.8,18.8,18.4,18.6,17.2,18.2,19.2,18.3,18.3
1998,20.1,19.1,20.3,19,19.2,19.2,17.5,17.6,16.7,18.2,17.5,17.3
1999,17.2,17.4,17.3,17.6,17.1,16.6,16,16.5,16.4,16.4,16.9,16.5
2000,16.3,16.4,16.6,17.1,16.9,16.6,15.9,16.4,16,17.2,17,16.9
2001,17.2,18,16.8,17.7,16.9,16.4,16.2,16.8,16.2,17.1,17.1,16.8
2002,17,17.7,17.6,17.7,17.9,16.5,16.6,17,16.7,18.1,18.7,18.5
2003,17.5,17.7,18,17.9,17.5,16.4,16.4,16.2,17.2,17.8,16.8,16.9
2004,18.2,18.7,19.7,18.1,16.9,17.1,15.9,16.8,16.1,17.8,17,17.4
2005,16.9,18.8,18.8,18.6,17.1,17.3,16.5,16.3,16.4,17.2,16.3,16
2006,16.5,17.1,18.3,17.9,17.8,17.6,18.1,17,16.8,18.1,17.1,17
2007,17.7,17.6,18.4,17.7,17.6,16.7,16.2,15.4,16.2,16.5,16.2,15.8
2008,16.9,17,17.3,16.9,16.7,16.8,16.4,15.9,16.7,16.9,17.2,17.1
2009,17,17.2,16.9,18.3,18.3,17.9,17.8,17.9,17.9,17.7,18.1,17.7
