1901,17.8,19.7,20,19.9,19.4,18.1,18.1,18,18.3,18.1,17.3,17.1
1902,17.1,18.2,19.1,18.7,17.8,18.6,19.3,19.5,19,18,17.2,16.6
1903,18.6,19.4,20.2,20.5,19.3,18.5,18.6,18,18,17.7,16.3,16.3
1904,16.7,18.9,19.5,20.1,19.4,19.1,17.8,18.3,18,17.6,16.9,16.2
1905,17.5,18.2,19,19.2,18.7,18.5,18.2,17.6,18,18.5,17.9,17.3
1906,17.1,19.8,19.7,19.7,20.2,19.6,18.2,18.4,18.5,17.8,16.3,14.9
1907,16.4,19.2,20.2,20.1,19.8,19,17.9,17.5,17.8,17.6,16.5,14.3
1908,17.1,17.9,20.8,20.9,21.5,19.2,18,17.5,19.2,20.5,15.8,15
1909,16.1,17.9,18.9,18.2,18.7,17.6,18.2,18.3,18.1,17.6,16.4,16.8
1910,17.2,18.7,19.9,20.5,20.2,19,19.1,18.4,17.8,17.7,17.2,17.4
1911,18,18.7,20.4,20,20,19.1,18.3,18.1,18.1,18.6,17.7,17.2
1912,17.1,18.4,19.2,19.3,19,18.4,17.5,17.6,17.9,17.5,17.1,16.3
1913,17.2,18.4,18.6,19.5,18.9,18.1,17.9,17.8,18.2,17.6,16.3,16
1914,18.2,18.7,19.8,19.3,19,18.6,17.5,17.4,17.9,17.6,17.3,16.7
1915,17.9,18.8,19.5,19.5,19,18.2,17.6,17.6,17.9,17.7,17.2,16.5
1916,16.7,18.6,19.3,19.7,18.8,18.1,17.3,17.3,17.6,17.2,17,16.3
1917,17.3,18.6,19.2,19.2,18.8,18.1,17.6,17.4,17.5,17,16.7,16.3
1918,17,18.1,18.7,18.9,18.8,18.1,17.9,17.6,18.1,17.8,17.1,16.8
1919,18.4,19.2,19.8,19.2,19.1,18.3,17.7,18.1,18.1,17.9,16.9,16.6
1920,17.1,17.8,18.9,19.2,18.7,18.2,17.6,17,17.5,17.5,16.8,16.2
1921,16.9,17.8,18.5,20.1,19,18.4,17.7,17.3,17.9,17.8,17.1,17.2
1922,17.6,18.7,19.4,19.7,19,18.6,17.5,17.5,17.7,17.7,17.4,16.7
1923,18.4,18.2,19.7,19.3,18.7,18.2,17.3,17.1,17.8,17.5,16.7,16.6
1924,17.7,19,19.9,19.7,18.9,18.4,17.4,17.6,17.7,17.9,17.1,16.9
1925,16.6,18,19.7,19.6,18.9,18.1,17.7,17.6,18.2,17.9,17.2,16.9
1926,17.1,18.6,19.2,19.4,19.2,18.4,17.6,18,18.4,17.8,16.9,16.7
1927,17.8,18.4,19.5,19.2,19.2,18.4,17.6,17.7,17.9,18.2,17.3,17.4
1928,18.2,18.9,20,19.8,19,18.5,17.7,17.6,18.2,17.8,17,16.9
1929,17.7,19.2,19.6,20,18.9,18.3,17.1,17.5,17.9,17.7,17.1,16.1
1930,16.8,18.8,19.1,19.5,19,17.9,17.4,17.5,18.1,17.7,16.5,16.7
1931,17.2,19,19.4,19.5,19,18.4,17.4,17.5,17.7,17.8,17.2,16.7
1932,17.5,18.7,19.5,19.7,18.7,18.3,17.2,17.3,17.8,17.9,17.2,16.6
1933,18,19.2,19.9,19.4,19.2,18.3,17.6,17.5,17.9,18,17.7,17.1
1934,17.6,18.5,19.7,19.8,19,18.1,17.3,17.6,18,17.9,17.3,16.5
1935,17.9,18.7,20,19.7,19,18.2,17.5,17.4,17.8,17.9,17,16.9
1936,17.5,19,20,19.9,19.4,18.3,17.5,17.5,17.9,17.9,17.3,16.9
1937,17.4,18.9,19.6,19.8,19.1,18.3,17.4,17.5,17.9,17.9,17.1,17.1
1938,17.7,19,19.5,20.6,19.3,18.2,17.2,17.2,17.7,17.8,17.2,17
1939,17.7,18.9,19.8,19.9,19.3,18.4,17.6,17.7,17.9,17.9,17.2,17.1
1940,18.5,19.6,19.1,20,19.9,19.4,17.8,18,18.9,18.5,17.8,18.3
1941,17.6,19.1,19.8,20.4,18.9,17.9,17.7,17.4,18,17.9,17,15.9
1942,17.5,19.3,19.6,20.4,18.4,18.5,16.8,16.9,17.8,18,17.6,16.8
1943,17.2,17.5,18.6,19.4,18.8,17.6,17.1,16.9,17.4,17.2,17.6,17.2
1944,17.7,19.4,19.3,20.3,19.4,18.4,17,17.3,17.4,17.8,16.5,16.5
1945,17.7,17.6,19.3,20.3,19.1,17.8,17.2,16.7,17.2,17.2,16.8,16.2
1946,18,20,19.8,19.6,19.8,17.6,17.8,17.6,18.5,18.6,17.7,17.7
1947,18.5,19.3,19.6,18.8,19.6,19.9,18.2,18.2,18.2,18.5,18.8,17.4
1948,19.3,19.7,19.5,19.8,19.4,16.7,17,16.8,17.5,16.9,16.1,16.5
1949,17.7,18.7,20.1,20.5,18.4,17.3,16.4,16.9,16.8,17.9,17,15.9
1950,17.3,18,20,19.9,19.5,17.8,17.1,16.7,17,16.6,16.3,16.4
1951,19.1,20.4,20.5,18.7,20.6,19.8,17.8,17.9,15.7,19.3,19,18.3
1952,18.2,19.1,20.3,20,21.1,19.4,17.8,17.5,19.4,18.5,19.2,19.1
1953,20.1,20.7,21.6,20.4,21,19.3,17.6,18,18.5,18.3,19.6,18.3
1954,19.4,20.8,21.2,21.3,21,18.3,16.8,17.3,18.6,17.3,18.8,18.3
1955,18.2,19.9,21.6,20.6,20.7,18.9,17.6,17.2,19.1,18.3,17.5,17.6
1956,15.9,18.4,20,18.7,18.6,17.3,16.6,16.8,17,16.7,16.2,16.1
1957,17.7,17.8,17.6,18.9,18.2,17.6,16.7,17.1,18.3,17.7,18,17.7
1958,18.3,18.2,20.9,20.2,20.2,18.4,17.1,17.9,18,17.6,17.4,17
1959,17.8,18.4,19.3,20.9,19.2,18.4,17.8,17.6,18.1,17.9,17.1,16.8
1960,16.9,18.5,18.8,19.5,18.6,18.5,17.8,17.9,18.3,17.5,17.3,17.9
1961,17.7,18.4,19.4,19.8,20,18.4,17,16,17.1,16.5,15.5,15.2
1962,16,17.6,19.1,19.5,18.7,17.5,17.1,16.6,17.7,16.7,16.7,16.3
1963,17.4,18.9,20,18.3,18.7,18.2,17.4,17.3,17.9,18.6,17.3,16.4
1964,17.1,18.4,20.5,19.9,18.9,17.6,16.6,16.8,17,16.8,16.5,15.9
1965,17.4,18.2,19.5,19,19.5,18.4,17.4,17.1,17.9,17.7,16.9,17.2
1966,17.9,19,19.6,19.8,19.3,17.9,17.3,17.2,17.8,18,16.7,16.9
1967,17.3,19.6,19.8,19.6,18.6,17.8,16.3,16.7,16.9,16.9,17.1,15.8
1968,16.9,17.4,19.1,19,18.8,17.9,17.1,17.6,17.6,17.7,16.9,16.9
1969,18,17.6,19.2,20.1,19.3,18,17.1,17.1,17.8,17.9,17.6,17
1970,17.6,19.3,19,19.5,19.7,18.3,17.2,16.9,17.7,17.8,16.3,16.2
1971,17.4,18.9,19.4,19.4,18,17.3,16.8,16.6,17.3,17.3,16.4,15.5
1972,17.6,17.8,19.4,18.9,19,17.8,17.5,17.7,18.1,18.1,17.4,17.5
1973,18.3,19.8,21.5,21.1,18.9,18.3,17.5,17.2,17.6,17.4,16.7,15.4
1974,17.4,18.8,18.6,19.9,18.5,17.6,16.9,17.4,17.1,17.5,15.9,16.4
1975,17.4,19.9,20.4,20.2,19,17.5,16.9,16.9,17.3,17.8,16.5,16
1976,16.6,19,19.4,19.3,19,19,17.2,17.5,18.8,17.4,17.6,18.1
1977,18.5,19.5,19.8,21.5,19.5,18,17.4,17.7,17.9,18,17.3,16.9
1978,17.6,19.1,20,20.3,18.8,18.2,17.4,17.7,17.9,18.3,17.2,17.1
1979,17.5,18.8,19.7,19.9,19.5,18.8,18,18.2,18.9,18.6,17.9,17.8
1980,18.9,20.1,20.5,20.1,19.6,18.7,18,17.9,18.1,19.3,18.9,18.6
1981,18,18.9,19.5,19.9,19.7,19.2,17.7,18.2,18.2,18.1,17.1,16.6
1982,17.9,18.9,19.3,19.6,19.5,18.9,18,17.8,18.5,17.7,17.7,17.3
1983,16.9,18.9,20.5,20.3,19.9,19.2,18.5,18.4,18.5,18.2,17.3,16.1
1984,16.8,18.2,20.2,21.1,19.7,18.2,17.6,18,18,17.6,17.6,16.5
1985,17.4,18.3,19.8,19.2,18.7,18.1,17.1,17.3,17.9,17.9,17.1,16.5
1986,17.2,19.1,18.6,19.3,19.8,18.1,17.9,18.1,17.9,17.7,17.3,17.1
1987,17.4,18.9,19.4,19.8,19.3,18.5,18.7,18.5,19.1,18.8,17.6,17.3
1988,18.1,19.6,20.2,20.1,19.2,18.8,18,18.2,18.3,18,16.3,15.8
1989,16.3,17.9,19.2,19,19,18.1,17.7,18.3,17.9,16.9,17,17.6
1990,17.1,18.5,19,19.6,19.7,18.6,18.1,18.3,18.4,17.9,17.6,16.6
1991,18.2,19.2,19.6,20.7,19.6,18.8,18,17.9,19,17.6,16.5,17
1992,17.3,19,20.1,21.2,19.7,18.8,17.8,18,18.2,18.2,16.6,16.9
1993,17.4,18.4,19.3,19.8,19.3,18.2,18,18.2,18.3,18.4,17.8,15.2
1994,17.1,19.2,20.5,19.8,19.4,18.8,17.7,18.2,18.2,17.7,17.7,16.4
1995,17.6,19.5,20.3,20.6,20.5,19.2,18.2,18.6,18.6,18.6,17.6,18
1996,19.2,19.5,20.2,20.2,19.5,18.8,18.2,18.4,18.8,18,17,16.6
1997,18.3,18.2,20.6,19.8,19.5,19,18.6,18.9,19.5,19,17.3,17.8
1998,19.1,20,20.5,21.4,19.2,18.9,18.9,18.9,19.1,19,16.5,15.2
1999,17.1,17.9,20,20.7,19.7,19.1,18.1,16.4,17.4,18.2,16.1,16.2
2000,16.8,18,20.2,20.6,19.8,18.7,18.3,18.2,18.9,17.9,20.5,16.8
2001,18.4,19,19.8,20.6,19.6,18.8,18.3,18.5,19.1,19.2,17.5,17.4
2002,17.9,20,20.3,20.5,20.2,18.9,19,18.8,18.8,18.7,17.8,18.5
2003,17.5,19.3,20.3,20.2,20.5,19.5,18.4,18.8,19,18.4,17.7,16.8
2004,19,19.1,20,20.5,20.6,18.8,18.4,18.8,18.8,18.3,17.7,17.8
2005,17.7,19.3,20.6,21.1,20,19.1,18.5,19.1,19,18.5,16.8,16.1
2006,18,20.1,20.9,20.7,19.8,19.1,18.8,18.5,18.7,18.9,17.9,18
2007,18.3,18.9,19.4,20.4,20.2,19.2,18.8,18.5,18.9,18.6,17.8,16.6
2008,18.5,19.3,18.8,20.3,19.9,19,18.2,18.4,18.7,18.5,17.7,16.5
2009,17.5,18.9,19.9,20.6,20.1,19.9,19,18.6,19.3,18.7,17.8,18.2
