1901,17.5,17.7,19.3,20.9,22.1,22.5,21.9,21.9,21.8,21.2,18.9,17.9
1902,16.5,17.4,20.1,21,22.4,22.3,22.1,20.9,23,21.8,20.1,18.3
1903,17.8,19,19.8,20.7,21.6,23.2,22.2,22,22.7,21.1,18.8,17.1
1904,17.4,18,19.4,21.1,22.1,22.4,21.6,21.7,21.9,21.1,19.1,18.1
1905,17.2,17.7,19.5,21.1,22.5,22.6,21.7,21.8,22.1,21.3,19.5,18.1
1906,16.4,16.7,18.8,20.4,22.1,22.1,22,21.7,22.4,21.3,19.6,17.8
1907,17.9,17.5,19.3,21.1,22.1,22.3,21.2,21.1,21.5,21.2,19.8,17.8
1908,16.7,17,19.4,21.9,22.8,22.5,21.7,21.6,21.8,20.6,18.6,18.1
1909,17.1,17.6,20,21.4,23,22.2,22.2,21.9,21.7,21,18.6,18
1910,16.2,16.8,17.4,19.7,21.6,21.8,21.4,21.7,21.7,20.9,18.3,16.5
1911,17.2,17.7,19.4,21.6,20.5,21.3,21.6,21.6,21.9,21.8,20,18.4
1912,17.5,16.2,19.8,22.3,22.3,22,21.6,21.7,21.7,21.4,18.5,18.5
1913,18.1,18.9,19.5,19.2,20.6,21.1,21.4,21.6,21.4,20.8,18.7,17.8
1914,16.8,17.7,17.6,20.6,21.1,21.5,22,22.1,21.5,20.9,18.8,18.6
1915,17.1,17,17.2,19.3,22.7,22.9,22.4,22.1,22,21.2,19.4,18.3
1916,18.6,16.7,18.3,20.1,21.7,21.8,22.4,21.4,21.5,20.7,18.5,18.3
1917,17.4,17.3,19.1,20.4,22.2,21.6,21.6,21.5,21.5,20.7,18.9,16.9
1918,16.9,18.4,19.5,21.2,21.8,21.8,22.1,21.8,22,22.1,19.5,18.1
1919,16.5,17.9,19.5,20.3,21.6,21.6,21.6,21.7,21.8,21.5,20.3,18.3
1920,17.8,17.2,19.3,22.3,22.3,21.5,21.5,21.4,21.8,21,18.9,17.9
1921,17,17.4,19.5,20.9,20.4,21.8,21.6,21.6,21.8,20.9,19.5,18.3
1922,17.9,18.2,19.8,22,22.2,22.2,21.8,22.1,22.1,21.2,19.5,18.4
1923,17.5,17.6,19.5,21.3,22.4,22.3,21.9,21.9,21.8,20.9,18.7,18.6
1924,17.4,16.1,19.1,21.3,22.2,22.8,22.2,21.9,21.9,20.9,18.5,18.6
1925,18.1,17.5,18.8,20.1,20.8,21.6,21.7,21.9,21.8,22.1,19.6,18.2
1926,17.2,17.2,19.4,20.8,21.2,22.4,22.5,22.1,22.4,21.7,18.5,18.6
1927,16.6,18.5,19.3,21,22.7,23.1,21.7,22.4,22.3,21.4,19.3,18.3
1928,16.7,18.2,19.4,20.6,21.3,23.2,22.1,22.3,22.6,21.8,19.3,17.8
1929,17.9,18.8,20.4,22,21.9,21.8,21.4,21.7,21.8,21.5,20.1,17.8
1930,17.8,17.7,19.1,20,21.9,21.8,21.4,21.8,22,21.5,18.7,17.2
1931,16.9,17.8,18.3,20,21.3,21.8,21.7,22,22.2,21.3,18.5,19.1
1932,18.4,18.7,19,20.5,21.8,22,21.6,22,22.7,21.5,17.5,18.2
1933,18.3,18.9,19.4,22,22,21.8,21.8,21.7,21.6,21.3,18.3,17.8
1934,17.8,17.5,18,20.9,21.1,21.5,21.5,22.1,22,21.2,19.2,18.3
1935,16.5,16.5,19.3,21.3,22.5,22.6,21.8,21.8,22.3,21.2,18.7,18.2
1936,18.5,19,20,21,21.4,22.1,21.8,22.2,22,21.8,19.3,17.5
1937,19,18.6,19.6,21.3,21.9,22.1,21.6,21.7,21.5,20.9,18,17.9
1938,16.9,17.2,19.7,20,21.5,21.5,21.3,20.9,21.5,20,18.2,17.2
1939,18,18.1,18.7,20.6,21.5,21.8,21.5,21.8,21.1,21.4,17.7,18.4
1940,16.4,16.4,19,20.6,21.5,21.9,21.9,22.3,22.1,20.5,19.2,17.9
1941,16.8,16.5,18.5,21.2,20.7,22.5,21.6,22.2,22.4,21.9,18.4,18.1
1942,15.8,17.4,18.2,20,22.4,22,21,21.1,21.2,20.8,18.4,18.1
1943,17,15,18,19.4,20.9,21.2,21.1,21.6,22,20.2,18.2,17.5
1944,16.5,18,20,20.9,21.1,22,22.3,21.8,21.7,20.8,18,18.3
1945,15.9,18.5,19.9,20.7,21,21.3,21.9,21.2,21.6,21.3,19.4,17.6
1946,18.3,17.9,18.7,21.7,22.7,22.5,20.6,20.9,21.5,21.2,20.8,19.5
1947,20.7,18.9,18.8,21.5,21.8,21.9,21.4,21.5,21.8,21.6,21.3,19
1948,17.9,17.6,19.5,21,22.8,22.8,21.3,22.7,22.2,21.7,20.5,18.1
1949,17.9,16.2,19.5,21.7,21.3,21.1,21.3,21.6,21.3,22.3,16.6,16.8
1950,17.2,17.4,18.8,20,21,21.8,21.5,20.9,21.3,21.3,19.5,16.6
1951,16.4,16.8,18.5,21.4,21.3,22.3,21.8,22.1,22.2,21.3,18.8,17.9
1952,16.9,17,19.5,20,21,21.8,21.8,21.5,21.2,20.2,18.7,16.2
1953,16.3,18.2,19.7,21.8,22.3,22.9,22,22.6,22.6,20.7,18.7,18
1954,17.7,16.9,20.2,21.7,22.9,22.7,22.3,22,22.1,20.7,17.8,15.9
1955,17.5,17.4,18.8,20.5,21.7,21.9,22,22.4,22.3,20.5,19.4,18
1956,15.1,18.3,19.5,21.3,21.7,21.8,21.1,22.1,21.7,20.8,18.4,18
1957,17.3,17.8,20,22.1,23.6,23.6,22.5,22.3,22.7,21.3,20,18.1
1958,17.1,17.4,20.2,22.3,22.4,22.9,22.6,22.9,22.1,21.9,21.1,19.8
1959,18.3,19.4,20.5,21.4,22,22.6,21.8,22.2,22.3,20.9,18.9,17.9
1960,17.7,17.5,19.3,21.3,22.6,21.8,21.9,21.8,22.5,22.7,19.8,17.8
1961,17.9,18.7,20.3,21.7,22.4,21.5,21.6,21.7,21.8,20.2,18.7,18.8
1962,16.5,17.7,19.3,21.6,21.5,21.5,22,21,21.4,21.2,19.3,16.8
1963,17,16.9,20,20,20.8,22.5,21.4,21.4,22.4,20.7,19.5,16.8
1964,17.1,18.1,20.2,21.8,21.5,21,21,21.3,21.3,19.9,19.5,18.1
1965,17.6,17.6,18.1,18.8,21.5,20.9,21.6,21.9,21.6,21.3,19,18.2
1966,16.6,17.3,20.1,21.2,22.7,21.6,21.9,22,22.1,21.6,18.2,16.9
1967,16.8,17.4,18.5,21.1,21.2,21.4,21.6,21.8,21.7,21.1,18.9,18.2
1968,18.6,15.6,17.9,20.4,21.3,21.8,21.7,22,21.8,21.3,18.1,18.2
1969,17.7,18.2,21.3,22.4,23.1,22.7,23,21.7,22.7,21.5,19.5,17.8
1970,16.9,18.2,20,22.6,21.8,22.8,21.6,22.1,22.3,21.2,18,18.3
1971,17.7,17.5,19.1,19.6,22.3,21.5,21.8,21.1,22.5,21.1,19.3,20.1
1972,19.3,17.5,19.1,21.4,22.1,23.2,22.9,21.8,22.1,21.4,21.1,18.3
1973,18.1,17.3,19.4,22.7,23.3,22.5,21.7,21.4,22,21.5,20.2,17.8
1974,19.4,16.8,18.5,22.1,22.1,22.1,20.9,21.8,21.2,20,18.7,17.8
1975,17.6,17.5,20.1,20.7,21.2,23.2,20.3,22.4,21.2,21.1,19.1,17.3
1976,16.8,16.1,19.2,19.8,21.7,21.5,21.6,21.4,21.6,21.5,19.3,18.6
1977,16.2,17.8,19.5,21.7,22.2,22.2,21.6,21.8,22,21.2,19.3,18.7
1978,17.2,16.7,19.2,21.1,22.3,22.2,21.7,21.8,21.6,21.3,20.3,18.5
1979,16.8,17.7,20.2,22.1,22.8,22.1,22,21.7,21.8,21.6,19,18.9
1980,17.5,17.4,20.2,21.5,22.9,23.3,21.9,21.9,22.1,21.1,19.5,17.4
1981,15.6,18,19.8,22.2,22.2,22.3,22,21.9,21.5,21.6,18.9,17.8
1982,17.9,18.8,19.6,21.4,22.4,23,21.9,21.8,22,21.3,19.7,18.3
1983,17.3,17.8,17.2,21.1,23,23.2,22.1,22.1,22.4,21.3,19.8,18.3
1984,16.6,18.4,18.9,20.4,22.7,22.5,21.2,21.6,21.6,21.6,18.4,19.1
1985,16.4,18.6,20.3,21.3,22,22.5,21.5,21.7,21.7,21.5,20,18.7
1986,17.3,17.6,17.8,19.4,22,22.7,21.7,21.9,22.7,21.5,20.6,18.6
1987,15.6,17.6,19.7,20.2,21.8,22.9,22.5,22.3,22.5,21,18.8,18.8
1988,18.6,18.3,20.1,21.2,21.9,22.3,21.9,22.2,22.2,21.4,19.9,18.1
1989,19.7,19.4,17.1,21.5,23.2,22.5,22,21.9,22,21.3,20.8,16.9
1990,19.4,18.9,20.2,22.3,23.6,23.2,22.4,22.5,22.4,21.5,20.8,19
1991,19,18.2,18,21.9,22.5,23.5,22.9,22.1,22.5,21.8,19.6,19.5
1992,18.7,17.7,20.8,22.3,22,23.5,22.6,22.2,22,21.7,20.6,20.3
1993,18.4,19,19.9,21.6,22,24.1,22.7,22.6,22.3,21.9,19.8,17.8
1994,19.1,19.8,19.9,23.4,22.6,22.8,22.2,22.5,22.1,22.2,20.4,19.2
1995,18.4,17.4,19.3,22.6,23.6,23,22.9,23.6,22.8,22.1,20.2,20.1
1996,16.9,17.5,18.9,21.8,23.6,23.1,22.9,22.6,23.1,22.2,20.2,19.2
1997,18.4,19.4,21.5,22.5,23.5,24.3,22.7,22.4,22.8,22.2,21.8,20.3
1998,19.1,18.9,20.3,22.6,22.8,23.7,22.9,23.1,23.4,22.5,21.1,19.8
1999,18,17.3,19.2,21.8,22.9,22.1,22.1,21.8,22,21.4,18.4,17.8
2000,17.1,17.6,20.3,21.3,22.9,23,22.1,22.1,22.6,22.1,20.3,18.3
2001,16.9,19.7,19.2,21.6,22.6,23.2,22,22.3,22.8,21.8,19.7,19
2002,17.9,18.4,20.4,20.9,22.6,22.9,22.4,22.7,23,22.2,20.2,19.3
2003,18.2,19.1,21.2,20.7,23.5,23.6,22.1,22.4,22.8,22.5,20.9,17.6
2004,18.6,19,20.8,21.9,22.4,23.2,22,22.3,22.2,22.5,20.3,18.6
2005,17.6,18.1,21.1,21.9,22.5,23.1,22.6,22.8,22.2,21.5,19.4,19.1
2006,18.5,17.7,20,21.7,22.6,22.2,22.6,22.7,22.3,22.5,19.6,20
2007,18.6,18.5,20,21.9,22.6,23.5,22.9,22.3,22.5,21.9,19.5,19.2
2008,18.2,19.3,19.8,21,23.1,22.5,22.1,22.5,22.2,21.4,18.1,18.8
2009,18.2,17.9,18.9,22.4,23.2,23.2,22.7,22.1,22.6,22.8,19.5,20.4
