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