1901,17.8,18.4,19,21,20.8,20.2,19.7,20.1,20.3,19.5,18.7,17.6
1902,16.9,17.7,19.6,21.2,21.4,21,19.5,20.3,19.4,19,19,18.3
1903,17.8,18.6,19.9,21.2,20.8,20.4,19.6,19.7,19.4,19.3,18.3,17.1
1904,16.7,17.3,19,20.7,20.6,18.8,19,19.7,19.5,19.4,18.7,17.4
1905,17.2,18.2,19.7,20.2,20.7,20.1,20.1,20,19.9,19.4,19.2,17.8
1906,17.7,18.8,19.7,22,21.3,20.5,19.6,19.5,19.4,19.2,18.8,17.6
1907,16.8,17.7,19.5,20.1,21,19.9,19.6,19,19.7,19.4,18.7,17.5
1908,17.2,17.4,18.9,21.1,20.7,19.9,19.3,19.4,19.4,19.3,18.6,17.7
1909,16.9,17.8,19.1,20.8,20.4,20.2,20,19.4,19,19.5,19,18
1910,17.3,17.9,19.4,20.8,21.1,20.1,19.7,19.3,18.8,19.1,18,16.9
1911,17.2,17.3,19.6,20.9,21.5,20.2,19.6,20.1,20.2,19.3,19.2,17.8
1912,16.4,18.7,20,21.3,21.5,20,19.8,19.9,19.9,19.2,18.7,17.3
1913,16.7,18.3,19.6,21.1,21.4,20.4,19.6,19.9,20.2,19.2,18.8,18.1
1914,17.1,18.1,19.9,21.4,21.3,20.6,19.8,19.5,20.2,19.5,19.3,18
1915,17.8,18.4,19.6,21,21.4,21,19.6,20.5,19.9,19.9,19.3,17.9
1916,17.1,18.4,20.1,21.6,21.3,19.6,19.7,19.8,19.1,19.1,18.7,16.9
1917,16.7,17.6,18.7,20.9,20.6,19.5,19.8,19.5,19.1,18.6,18.6,17.4
1918,16.4,16.7,18.5,20.6,19.6,19.9,20.3,19.7,19.7,19.9,19.7,17.9
1919,18,18.7,19.7,21.7,20.9,19.8,19.4,19.5,19.5,19.5,18.8,18
1920,17,18.3,20,20.6,21.2,19.7,19.4,19.5,19.5,19.4,18.6,17.6
1921,18.1,17.8,19.9,20.6,21.5,20.5,19.6,19.5,19.4,19.3,18.8,17.4
1922,17.2,17.6,19.8,20.8,20.4,19.9,18.9,19.6,19.3,19.1,18.5,16.9
1923,16.9,17.5,19,21.2,20.9,20,18.9,19,19.2,19.4,19.3,18
1924,17.2,18.4,19.5,21.2,21.4,19.5,19.1,19.5,19.7,19.4,19,17.6
1925,17.3,17.8,19.1,21.4,20.1,20,19.5,19.4,20,19.4,18.8,17.9
1926,17.6,18,20.3,21.5,21.3,20.8,20.1,20.1,19.8,19.7,19.1,18.5
1927,17.9,18.6,19.8,21.3,20.6,19.6,19.1,19.9,19.6,19.4,19.1,18.5
1928,17.9,18.6,19.8,21.3,22.1,20.5,19.1,19.5,20.1,19.3,19.1,18.1
1929,17.5,18.2,19.6,20.2,20.9,19.6,19.6,20.1,19.9,19.2,19.1,18
1930,17.5,18.2,19.4,21.2,20.3,20.2,20.2,20,19.8,19.4,19.3,18.3
1931,17.9,18.5,20.5,21.5,22,20.6,19.9,19.6,19,19.7,18.7,17.5
1932,16.7,17.3,18.8,20.8,20.3,20.5,19.6,20.1,19.4,19,18.4,17.4
1933,17.8,18,19.2,20.7,19.7,19.5,19.3,19.3,18.9,18.8,18.8,17.8
1934,17.1,17.4,18.8,20.8,21.3,20.1,20,20.1,20.2,19.6,18.5,17.8
1935,17.7,17.7,19.8,20.7,21.9,20.9,19.5,19.4,19.2,19.5,18.4,17.8
1936,17.5,18.6,19.4,21.6,21.1,19.8,19.4,19.7,20.1,19.7,18.8,18.4
1937,17.7,18.7,19.8,20.4,21.6,20.5,19.3,20.6,20.4,19.5,18.8,17.9
1938,18,18.5,20,20.7,21.3,20,19.5,19.9,19.5,19,18.7,18.2
1939,17,17.8,19.6,20.4,21,20.1,19.4,19.6,19.9,19.8,18.1,18
1940,16,18.2,19.9,21,20.8,20.3,19.5,19.4,20.3,19.6,18.8,17.9
1941,18.1,18.5,20.1,21.5,21.4,20.3,20.1,20.1,19.5,19.8,19.1,17.8
1942,17.4,18.5,19.7,20.9,21.5,20.3,19.5,19.8,19.7,19.6,18.9,17.8
1943,17.3,17.8,19.4,20.4,20.2,19.3,18.9,19.5,18.8,18.5,18.5,17.8
1944,17.5,18,18.6,20.9,21.3,20.2,19.7,20.5,19.9,19.8,18.8,17.3
1945,17.2,18.5,19.6,20.7,21.6,20.6,19.8,19.8,19.8,19.6,18.7,17.5
1946,16.5,17.2,19.2,21,21.5,20.4,19.8,19.6,19.7,19.5,18.7,17.4
1947,17.5,17.8,19.5,20.1,21.6,20.3,19.8,19.5,18.8,19,18.9,17.9
1948,17.8,18.2,19.3,21,20.8,20,19.5,19.6,19.6,19.5,19.1,18
1949,16.9,17.9,19.7,21,20.8,20,19.4,19.7,19,19.6,18.6,17.6
1950,17,18.1,19.6,20.9,21.6,19.8,19.2,19.4,18.8,18.8,18.5,17.5
1951,17.4,17.5,19.2,20.5,21.1,19.3,19.4,20.4,20.2,19.7,18.8,17.7
1952,17.6,18.3,19.6,20.9,20.8,20,19.7,19.6,19.9,19,18.7,17.6
1953,17.5,17.3,20.1,20.5,21.9,21.1,19.1,20,19.6,19.2,18.7,17.7
1954,17.6,18.1,18.9,21.3,20.8,20,19.1,19.4,19.1,18.9,18.6,17.7
1955,18.1,18.5,19.1,20.9,19.9,20.2,19.5,19.6,19.9,19.2,18.5,16.9
1956,16.9,17.8,19.5,20.8,20.2,19.8,19.5,19.7,19.6,18.7,18.7,17.6
1957,17,18.2,18.9,20.8,21.6,20.4,20.1,20.2,20.1,20.1,19.5,18.9
1958,17.7,19.2,20.3,21.3,21.1,20.4,20.2,20,19.7,19.9,19.1,17.9
1959,17.9,18.3,18.8,20.8,21,20.3,19.5,19.6,19.9,19.9,19.1,17.5
1960,17.9,18.3,19.3,20.6,19.6,20.2,20.2,20,19.4,19.3,17.9,17.5
1961,18,18.6,19.8,21.2,20.9,19.9,19.5,19.8,19.2,19.3,19,18.1
1962,17.7,18.5,18.9,20.3,20.6,20.6,19.9,20.2,19.7,19.7,18.6,17.8
1963,17.4,17.5,19.1,20.4,21.1,20.7,20,20,19.7,19.4,19.2,17.8
1964,16.6,17.9,19.7,21.2,21.7,20.4,19.7,19.7,19,18.8,18,16.9
1965,17,18.6,19.2,20.4,20.5,19.8,19.5,19.8,19.9,19.9,19.6,18.1
1966,18.3,18.9,19.9,20.9,21.1,19.8,20.1,20.4,19.6,19.1,18.9,17.8
1967,16.8,16.9,18.7,20.7,21.1,20.3,19,19.2,19.4,19,17.4,17.9
1968,17.3,17.4,19.2,20,21.1,20.1,19.2,19.4,19.4,19.2,19,17.6
1969,17.3,18.2,19.6,21.1,20.9,20.4,19.6,20.3,19.3,19.5,18.7,18.3
1970,17.9,18.4,19.5,21.3,21.3,20.5,19.8,19.5,19.4,19.1,19.5,16.6
1971,17.7,17.4,18.8,20.2,20.5,19.8,19.4,19.3,19.8,18.8,17.9,17.1
1972,16.1,17.5,17.7,20.6,20.4,20.8,19.7,19.5,20.4,19.5,18.8,18.7
1973,16.6,18.5,19.3,20.9,20.9,20.3,20.4,19.3,19.8,19.5,18.6,17.3
1974,16,16.3,18.7,20.4,20.2,20.1,19.1,19.1,19,18.7,18.3,17.1
1975,16.6,18.3,19.4,20.4,20.4,19.5,19.1,19.6,19.2,18.8,18.1,16.7
1976,16.5,17.2,18.5,20.2,20.9,20.6,19.8,19.8,19.9,19.6,19.5,17.8
1977,16.2,18.1,19.5,21.2,20.5,20.2,19.6,19.9,19.9,19.6,19.5,17.8
1978,17.2,18.8,19.6,21.6,20.8,19.9,19.5,19.8,19.6,19.8,18.7,19.4
1979,18.3,19.5,20.1,21.8,21.8,21.1,19.8,20.1,20.4,19.7,19.7,19
1980,17,18.4,20,21.8,22.1,20.6,19.6,19.8,20.1,19.8,19.5,18.8
1981,18.2,18.2,19.9,21.6,21.7,20.3,20.3,19.9,20,20.2,19,18
1982,17,18.1,20.2,21.7,21.8,20.4,19.8,19.9,20,20,20.2,18.3
1983,17.6,19.4,20.7,21.9,22.4,21.5,20.8,20.3,19.7,20,18.5,18.2
1984,19.3,17.8,19.8,20.8,21.4,19.9,19.2,19.8,19.7,18.7,19,17.7
1985,18.5,18.6,20.1,21.7,21.2,19.4,19.4,19.9,19.9,19,18.6,18.7
1986,18.5,18.4,20.5,21.4,21.5,20.7,19.9,19.6,19.9,19.7,18.6,19.4
1987,18,18,19.7,21.6,22,20.4,21,19.8,20.4,20,19.4,19.1
1988,17.8,18.9,20.9,21.4,21.6,20.2,19.9,20.3,19.5,20.1,19.4,17.4
1989,17.2,16.7,19.2,21.1,20.8,19.5,19.7,19.1,19.3,19.4,19.5,18.3
1990,17.7,18.9,20.6,21.8,21,20.2,19.1,19.9,20.2,19.9,19,18.9
1991,18.5,18.7,20,21.3,22.1,20.4,19.8,19.6,20.2,19.6,19,17.8
1992,16.8,17.5,18.5,21.1,20.8,20.5,19.4,19.4,19.4,19,19.5,17.6
1993,16.6,17.5,19.4,20.8,21.5,20.2,19,19.5,19.6,19.2,19,18.4
1994,17.4,18.4,18.7,21,21.1,20,19.7,19.6,19.6,19.2,19.2,18.2
1995,18,18.6,19.3,20.8,20.9,20.6,20,20.1,19.6,19.4,19.3,18
1996,17,17.5,19.9,20.4,21.4,20.5,20.5,20,20,18.9,19.1,17.5
1997,17.6,18,19.1,21.4,21.3,21,20.3,20.1,19.7,19.6,19.9,19.7
1998,18.9,18.9,20.9,22.6,21.3,20.8,20.2,20.5,19.5,19.1,19,18.3
1999,16.7,18,19.1,20.3,20.1,19.9,20.3,20.3,20,19.6,19,17.3
2000,18.4,19.3,19.4,20.7,21.5,20.5,20,20.2,20.2,19.6,19,18.2
2001,18.4,19.3,20.4,21.1,21.3,20.4,20.1,20.1,20.2,19.9,19.6,18.3
2002,18.2,18.2,19.9,21.4,21.3,21,20.6,20.4,20.9,19.9,19.3,18.4
2003,18,18.8,19.6,21.3,22.2,21.6,20.6,20.7,20.8,20,19.3,18.3
2004,18,18.6,20.3,21.2,19.6,20.4,20.1,20.6,19.9,20,19.5,18.7
2005,18.6,19.5,20.7,20.8,21.8,21,20.3,20.9,20.2,20.2,18.9,18.2
2006,17.9,18.7,20.2,21.7,21.3,21.3,20.3,20.7,20.5,19.9,19.3,18.5
2007,18.1,18.6,20.3,21.5,21.7,21,20.3,20.5,20,20,19.5,18.4
2008,18.4,19,18.7,20.7,21.7,20.9,20.3,20.7,20.1,20.2,19.5,18.5
2009,18,19,20.5,21.8,21.9,21,20.3,20.9,20.3,20.6,19.5,19.1
