1901,17.5,17.9,19.4,20.4,20.7,20.3,20.1,20.1,19.9,19.4,18.3,17
1902,16.4,17.6,20,20.4,20.9,20.2,20.3,19.3,20.8,19.7,18.7,17.2
1903,17.4,18.9,19.7,20.2,20.2,21,20.5,20.3,20.6,19.1,17.6,16.1
1904,17.2,18.2,19.7,20.6,20.6,20.3,20,20,20,19.2,18,17.1
1905,17.2,17.3,19.5,20.6,20.9,20.3,20.1,20.2,20.1,19.2,18.2,16.8
1906,16.3,17,18.9,19.9,20.6,20.1,20.3,20,20.3,19.3,18.3,16.7
1907,17.5,17.7,19.3,20.5,20.6,20.2,19.6,19.5,19.6,19.2,18.4,16.8
1908,16.5,17.2,19.4,21.2,21.2,20.4,20,19.9,19.8,18.7,17.4,17
1909,16.8,17.7,19.9,20.8,21.4,20.1,20.4,20.2,19.7,19,17.4,16.9
1910,16.1,17.1,17.7,19.3,20.2,19.8,19.8,20,19.7,19,17.2,15.7
1911,17,17.8,19.4,20.9,19.3,19.4,20,19.9,19.9,19.7,18.6,17.3
1912,17.2,16.5,19.8,21.6,20.8,20,19.9,20,19.7,19.4,17.3,17.3
1913,17.7,18.9,19.5,18.9,19.4,19.2,19.7,19.9,19.5,18.8,17.5,16.7
1914,16.6,17.8,17.8,20.1,19.8,19.5,20.3,20.3,19.6,19,17.6,17.5
1915,16.8,17.2,17.5,19,21.1,20.7,20.6,20.3,20,19.2,18.1,17.2
1916,18.1,17,18.5,19.7,20.3,19.8,20.6,19.7,19.5,18.7,17.2,17
1917,17,17.4,18.9,19.6,20.6,19.2,19.7,19.6,19.3,18.5,18.1,15.8
1918,16.5,18.2,18.9,20.4,20.3,19.6,20.1,19.9,19.7,19.8,18.1,16.8
1919,15.9,17.9,19.1,19.5,20.1,19.7,19.8,20,19.7,19.3,18.7,16.9
1920,17,17.4,19.3,21.4,20.4,19.4,19.9,19.7,19.7,18.9,17.6,16.6
1921,16.5,17.3,19.3,20.2,19.1,19.8,19.8,19.8,19.6,18.7,17.9,17
1922,17.3,18.1,19.6,21.1,20.8,19.8,20,20.2,19.9,19,18.1,17
1923,17,17.6,19.3,20.6,21,20.1,20.1,20.1,19.8,18.8,17.4,17.2
1924,16.9,16.4,19.2,20.6,20.2,20.5,20.3,20.1,19.7,18.7,17,17.2
1925,17.3,17.6,18.5,19.7,19.3,19.4,19.9,20.1,19.7,19.8,18,16.6
1926,16.7,17.5,19.3,20.2,20,20.1,20.6,20.1,20.1,19.5,17.2,17.4
1927,16.3,18.2,19.2,20.4,21.4,20.7,19.8,20.4,20,19,17.7,17.1
1928,16.3,18.5,19.3,20.2,19.8,21,20.4,20.3,20.3,19.6,17.7,16.6
1929,17.4,18.8,20,21.7,20.4,19.7,19.6,19.8,19.6,19.1,18.5,16.3
1930,17.2,17.9,19.1,19.2,20.9,19.6,19.5,20.1,19.9,19.4,17.4,16.1
1931,16.6,18.3,18.7,20,20,20.1,19.9,20.2,20,19.4,17.2,17.5
1932,17.7,18.6,18.7,19.8,20.7,20,19.7,20.1,20.3,19.1,16.1,16.8
1933,17.3,19,18.9,21.6,21.1,19.9,20.3,19.6,19.4,18.8,16.6,16.1
1934,17,17.6,18.1,20.2,19.8,19.8,19.9,20.2,19.9,18.9,17.8,17.1
1935,15.9,16.4,18.8,20.6,20.8,19.9,19.9,19.9,20,18.8,17.5,16.6
1936,17.9,19.1,20.1,20.3,20,20.3,20.2,20.3,19.9,19.5,18.2,16.5
1937,18.6,18.9,19.3,20.9,20,20,20,19.9,19.5,18.6,16.7,16.4
1938,16.8,17.4,19.1,19.6,19.9,19.4,19.6,19.6,19.3,18.1,17.4,15.5
1939,17,18.2,18.2,20,20.1,19.5,19.7,19.9,18.9,19,16.4,17.1
1940,15.9,17.2,18.7,20.6,20.6,19.7,20.1,20.4,19.9,18.7,17.7,16.4
1941,16.3,16.9,18.1,20.8,19.5,21.1,20.6,21.5,19.6,19.2,17.6,17.1
1942,16,17.9,18.1,20,20.9,20.3,19.8,20.3,19.8,19.3,17.5,17.9
1943,17.3,16.3,18.2,19.8,20.6,19.6,20.3,21.4,20.3,18.5,16.8,16.7
1944,16.8,19.5,20.1,20.9,20.7,19.7,21.2,18.6,20.4,18.6,19.1,17.1
1945,17.2,19.2,20.6,20.2,20,20.5,20.8,19.9,20.1,19.7,18.9,18.3
1946,18.3,19.2,19,20.3,21,19.9,20,20,19.7,19,19,17.4
1947,18.5,17.9,19.4,20.9,19.9,20.3,19.4,19.9,19.6,19.9,19.7,17.7
1948,17.5,18.5,19.7,20,20.1,20.7,19.6,21.1,20.9,19.7,19.4,18.1
1949,18.4,18.4,19.4,20.7,20.5,20.4,20.3,20.3,19.3,20.2,17.2,17
1950,18,18.3,18.8,19.5,20,19.4,19.5,19.2,19.8,19,17.6,16.3
1951,16.7,17.2,18.2,20.1,20.4,20.4,19.5,20.3,19.6,19.2,17.7,17.2
1952,17.8,18.1,20,20,19.7,19.7,19.6,19.8,19.7,18.1,17.7,16.4
1953,16.9,18.4,19.6,21.4,20.9,20.5,20.4,20.6,19.9,18.5,17.8,16.6
1954,17.6,17.7,19.1,20.1,19.8,19.7,19.7,20,19.7,18.4,17.3,16.2
1955,17.3,17.6,19.1,20.4,20.5,20.2,19.1,20.2,19.5,18.1,18,16.7
1956,16.2,18.5,18.8,20.5,19.3,19,19.4,20.3,19.1,18.8,17,16.8
1957,17.8,17.7,19.5,20.6,21.5,21,20.2,20.1,20.1,19.1,18.6,16.5
1958,16.4,17.7,20,21.1,20.5,20.6,20.2,20.6,20.2,19.6,18.6,16.9
1959,17.3,18.9,19.3,20.1,20.6,20.5,20,20.3,20.6,19.2,17.5,16.7
1960,17.8,17.6,18.8,20,20.7,20.2,19.9,20.1,19.9,19.8,18.3,16.7
1961,17.2,18.3,19.7,20.5,20.7,19.6,19.7,20.2,19.9,19.1,17.2,17.4
1962,16.8,19,19.3,20.6,20.3,19.8,20.2,20,19.9,19.4,17.5,16.6
1963,16.9,17.5,19.2,20.3,19.8,20.5,19.9,20.2,19.4,18.7,17.8,15.9
1964,16.5,17.7,20.5,21.2,20.6,19.5,19.6,20.1,19.9,18.1,18.1,16.6
1965,17,17.9,18.8,20.2,20.3,19.5,19.4,19.6,19.4,18.6,17.8,17.2
1966,17,17.7,18.4,20.6,20.1,19.2,20.4,20.3,20,18.6,17.1,15.8
1967,17.1,17.5,18.7,20.3,19.9,19.3,20.1,20.1,19.2,18.6,17.7,17.3
1968,17.2,16.9,18.2,20.4,19.5,19.4,19.2,19.5,19.4,19,17.9,17
1969,17.5,18.5,19.3,20.9,21.6,21.2,20.7,19.9,20,19.8,18.1,17.4
1970,17.1,18.1,19.6,21.9,20.3,20.8,19.9,20.3,20,19.4,16.8,17.6
1971,18.2,19,19.6,20.3,21,20,20.1,19.8,20.4,19.5,18.2,18.4
1972,18.7,18.6,19.8,21.3,21,20.7,20.3,20.1,20.6,19.9,19.3,17.6
1973,17.9,17.9,20.2,21.1,21.1,20.3,20.4,19.7,20.5,19.1,19.1,17.6
1974,18.5,17.8,18.6,21.4,20.3,19.7,19.4,20.1,19.1,17.3,17.4,17.2
1975,16.8,18.8,20.5,21.4,21,22.1,20.4,21.2,19.9,19.7,18.3,17
1976,16,17.1,20,19.9,20.4,19.5,20,20.7,20.7,20,17,16.3
1977,16.4,17.1,20.3,20,20.4,19.9,20.2,20.4,20.5,19.4,18.4,17.4
1978,17.1,17.4,19.1,20.5,21.1,20,19.8,20.1,19.9,19.6,19.3,17.6
1979,16.7,17.6,19.6,21.1,20.7,19.3,20.7,19.8,19.3,19.5,17.9,17.4
1980,17.8,17.5,20.2,20.1,21.6,21.3,20.5,20.1,19.9,19.1,17.6,16.3
1981,16,17.6,19.8,20.7,21.1,20,20,20,19.7,19.3,18,17.6
1982,18,18.6,20.2,21,20.2,20.7,20.1,20.4,19.7,18.9,18,17
1983,16.9,17.6,18.6,20.5,21.7,21.4,20.4,20.4,20,19.2,18.8,17.3
1984,16.7,17.8,19.3,21.3,19.9,20,19.5,19.4,19.1,20,18.1,17.4
1985,16.5,17.7,19.4,20.3,20.6,20.5,19.9,20.1,20.2,19.6,18.5,17.1
1986,16.7,18.5,18.4,20.3,20.3,20.5,19.9,20,20.2,19.3,18.6,17.1
1987,16.5,18.2,19.3,19.4,21.4,20.5,20.1,20.5,20.7,19.1,18.3,17.7
1988,17.3,17.7,19.3,20.7,20.8,20.2,20.2,19.9,19.8,18.8,19.1,16.8
1989,18.2,18.2,18.1,20.3,20.6,20.3,20.2,20,19.3,19,18.9,15.8
1990,17.4,18.4,19.6,20.5,20.8,20.2,20.2,20.2,20,19.3,18.1,16.8
1991,18.4,17.9,20.5,21.7,20.9,21.1,21.3,20.4,19.8,19.4,17.6,17.2
1992,17.8,17.3,20.4,20.6,19.8,21.3,20.6,20.2,19.7,19.3,18.7,18.2
1993,17.9,19.4,20.2,20.9,20.4,21.2,20.4,20.3,20.1,19.5,18.1,16.8
1994,18,18.9,19.7,22.1,21,20.7,20.6,20.2,20.1,19.9,19.4,17.5
1995,18.4,18.3,19.6,20.7,21.7,20.6,20.3,20.3,19.9,19.2,18.7,18.2
1996,16.8,18.1,19,20,20.6,20.3,20.3,19.9,20.8,19.3,18,17.3
1997,17.9,18.3,20.8,20.4,21,21.8,20.4,21.1,20.3,19.5,19,17.9
1998,17.9,19.3,20.4,21.8,21.9,21.9,20.6,21,20.8,20.2,19.2,18.1
1999,18.2,18.5,19.9,21.4,21.3,20.2,20.3,20.1,19.6,18.8,17.3,16.8
2000,17.6,18.6,20.5,21.5,21.1,20.7,20.8,20.4,20.3,19.7,19.1,17.4
2001,17.4,19.5,19.9,20.7,21,20.9,20.8,20.7,20.6,19.6,19.1,17.9
2002,18,18.6,20,21.4,21.5,21,21,20.8,20.6,20.5,19.1,18.2
2003,19,18.9,20.5,20.6,22,21.6,20.3,21.2,21,20.2,19.2,17.3
2004,18.4,19.1,21.2,21.7,21,21.2,20.7,21.2,20.7,20.4,19.4,18.1
2005,18.3,19.1,20.9,21.9,21.3,21.1,20.9,21.2,20.6,19.3,18.5,18.2
2006,18.4,18.5,20.7,21.3,20.9,20.3,20.7,21,20.8,20.2,18.4,18.4
2007,17,18.7,20.5,21.3,21.1,21.3,21,20.5,20.5,19.2,18.6,18.2
2008,18.3,19.4,19.9,20.8,21.9,20.1,20.3,20.6,20.2,19,17.8,17.7
2009,18,18.8,19.9,22,21.6,21.2,21.4,20.8,20.8,20.6,18,18.6
