1901,17.6,19.8,20.2,20.8,21.5,21.1,20.3,19.4,19.6,18.7,17.8,17.2
1902,16.8,18.8,19.7,20,20.3,21.7,20.7,20.6,19.5,18,17,15.8
1903,16.7,18.1,19.2,20.8,21.1,21.5,20.4,19.6,18.8,17.9,16.7,16.5
1904,16.9,18.5,19.3,20.5,21,21.9,19.8,19.8,19.1,18.1,17.2,16
1905,17.3,17.8,18.9,19.9,20.7,21.7,20.2,19.1,19.1,18.8,18.2,16.9
1906,16.8,19.5,19.2,20.1,22.2,22.4,20.1,19.2,19.1,18.1,17,15.7
1907,16.6,18.9,20,20.7,21.5,21.8,19.7,18.3,18.8,18.1,16.4,14.4
1908,16.7,17.7,20.4,21.3,22.1,21.9,19.4,18.8,19.9,20.3,16.3,15.3
1909,16.2,18.3,19.4,19.4,20.8,20.6,19.8,19.3,18.7,18.1,17.2,16.7
1910,16.8,18.6,19.3,21.1,21.9,21.6,20.7,19.5,18.6,17.9,17.3,16.8
1911,17.4,17.8,19.8,20.6,21.6,21.8,19.9,19.3,19,18.7,17.9,17.1
1912,16.7,18,19,19.8,21,21.5,19.6,18.9,18.9,17.9,17.7,16
1913,16.7,18,17.9,20.1,20.8,21.1,20.1,19.2,19.4,18.3,16.8,16
1914,18.3,18.4,20.2,20.3,21.2,21.7,19.4,18.5,18.9,18.1,17.9,16.7
1915,18,18.7,19.5,20.2,21,21.3,19.7,18.9,19,18.3,17.6,16.3
1916,15.9,18.3,19.1,20.5,20.6,21,19.2,18.4,18.5,17.4,17.3,16
1917,16.9,18.3,19.6,19.7,20.4,21,19.7,18.6,18.3,17,16.8,16
1918,16.4,17.5,18.2,19.2,20.6,21.1,19.7,19,19.3,18.3,17.6,16.9
1919,18.6,19.1,20.3,20.3,21.2,21.4,19.5,19.5,19,18.2,17.2,16.6
1920,16.9,17.4,19.1,20.4,20.7,21.5,19.4,18.1,18.5,18.2,17.4,16.6
1921,16.9,17.7,18.7,21.4,20.9,21.2,19.4,18.2,19,18.3,17.5,17.5
1922,17.5,18.4,19,20.5,20.9,21.9,19.4,18.7,18.7,18.2,18,16.7
1923,18.4,17.7,19.7,20,20.7,21.2,19,17.9,18.5,17.7,17,16.7
1924,17.6,19,20.2,20.5,20.8,21.5,19.3,18.8,18.6,18.6,17.5,17.1
1925,15.8,17.3,19.8,20.4,20.8,21.1,19.8,18.9,19.6,18.6,17.7,17
1926,16.8,18.3,18.9,20,21.3,21.8,19.7,19.6,19.8,18.4,17.1,16.6
1927,18.2,18.2,19.7,19.7,21.2,21.6,19.7,19.1,19.1,19,17.8,17.9
1928,18.6,18.8,20.4,20.6,21,21.8,20,18.9,19.5,18.5,17.3,17
1929,17.8,19.3,19.6,21.2,20.8,21.3,18.9,18.7,19,18.2,17.4,15.7
1930,16.2,18.7,18.8,20.1,21,20.7,19.3,18.7,19.3,18.2,16.5,16.7
1931,16.8,19,19.3,20.2,20.9,21.5,19.4,18.8,18.7,18.4,17.8,16.7
1932,17.6,18.5,19.8,20.9,20.8,21.4,19.2,18.4,18.7,18.4,17.6,16.7
1933,18.1,19.4,20.1,20.1,21.3,21.4,19.6,18.8,19.1,18.7,18.5,17.4
1934,17.5,18.1,19.8,20.7,21,21.1,19.2,18.9,19.1,18.6,17.8,16.3
1935,18.3,18.5,20.6,20.4,20.8,21.1,19.6,18.3,18.8,18.5,17.2,17.2
1936,17.2,19.2,20.5,21,21.8,21.4,19.4,18.6,18.9,18.7,18.1,17.1
1937,16.9,19,19.7,20.7,21,21.5,19.3,18.7,19,18.8,17.6,17.6
1938,17.9,19.3,19.2,21.7,21.4,21.2,18.8,18,18.4,18.4,17.8,17.4
1939,17.9,19,20.1,21,21.6,21.7,19.8,19.2,18.9,18.7,17.9,17.8
1940,18.1,19.1,19.3,21.3,21.7,22.2,19.7,19.2,19.8,18.9,17.9,18.1
1941,17.9,19.1,19.8,20.9,21,20.9,20,18.5,18.7,18.5,17.8,15.9
1942,17.2,19.1,19.1,21,20.6,21.6,18,17.8,18.1,18,17.4,16.9
1943,16.5,16.6,17.9,19,19.6,19.1,18.7,17.7,17.8,17.5,17.5,17.1
1944,17.5,17.6,19.8,20.6,21.1,21.4,18.4,18.3,18.2,18.3,16,15.9
1945,17.6,16.8,18.5,20.5,20.6,20.7,19.2,17.7,17.8,17.5,16.7,16.4
1946,17.4,18.8,18.7,19.9,21.2,20.3,19,17.8,18.9,18.5,17.4,17
1947,17.3,18.1,18.7,20.1,21,22.4,20.1,18.8,18.1,18.3,17.8,17.7
1948,17.8,18.3,18.6,20.4,21.1,19.8,19.5,18.2,18.4,17.3,16.5,16.4
1949,16.9,17.2,19.2,19.8,20.2,20.6,19,18.3,18,17.9,16.6,15
1950,16.5,17.3,19.1,20.5,21.2,20.8,17.8,17.5,17.5,17.1,16.4,15.8
1951,17.2,17.9,19.1,19.8,21.1,21.5,19.5,18.2,17.8,18.6,18.3,16.1
1952,18.1,19,19.6,20.1,21.7,21.4,19.6,16,18.1,16.8,16.9,16.6
1953,18.3,20.2,20.2,20.7,22.6,22.6,17.8,18.1,18.8,17.8,18.1,16.7
1954,17.6,20.2,20.6,21.9,22.1,22,17.8,17.4,19,18.8,19,17
1955,17.3,19,20.4,21.8,22.6,21.5,19.8,18.6,19,19.6,18.3,17.4
1956,16.4,20,21.2,20.5,21.1,20.5,17.8,16.5,17.7,17.3,16.7,16.5
1957,16.5,16.5,18.6,19.3,20.2,21.1,19,17.5,18.7,18.5,18.2,17.3
1958,17.4,17.6,20,21.8,22,20.7,18.5,17.7,18.9,18.4,17.8,17.5
1959,17.4,18.6,19,21.7,21.3,21.3,18.5,17.2,18,18.2,17.7,16.8
1960,16.9,18.8,19.1,21.2,21.1,20,18.9,19.4,18.7,18,17.5,17.4
1961,17.9,18,19.4,20.5,21.3,20.7,17.1,17.7,18.8,18.5,17.4,16.5
1962,17,18.5,20.2,20.8,21.8,20.7,19.3,17.5,17.9,17.8,17.9,17.2
1963,17.3,19.1,20.2,20.3,20.3,20.7,19.3,18.8,19,18.7,18,16.5
1964,17.4,18.1,20,20.3,21.2,21.2,17.6,17.4,18.3,17.3,16.7,15
1965,16.4,17.9,19.3,19.8,21.4,21.7,19.6,18.3,18.6,17.8,17.1,16.2
1966,17.7,17.6,19.5,20.5,21.7,21.3,20.2,19.9,18.7,18.5,17.5,16.1
1967,17.3,18.5,19.1,19.7,20.7,20.8,18.4,17.6,18.9,17.4,16.1,16.4
1968,16.7,16.6,18.8,18.8,20.4,20.4,18.8,18.8,19.2,18.5,17.8,16.8
1969,17,18.1,20.3,20.8,21.5,21.9,20,18.8,19.4,18.6,18.7,17.2
1970,17.3,19.3,19.5,21.2,21.9,22.3,19.3,19.2,19.3,18.3,16.9,16
1971,16.6,17.9,19.6,20.1,21.1,21,19.3,18.8,18.4,18.2,17.2,15.3
1972,17.5,17.6,19.7,20.4,21.4,20.8,19.7,19.1,19.1,18.8,17.9,17.2
1973,17.6,19.9,20.8,22.7,21.9,22.2,19.7,19.2,19.2,18.6,17.7,16.7
1974,17.4,18.9,18.7,21.7,21.3,20.9,18.4,18.4,18.4,18.8,17.2,16.6
1975,17.3,19.8,20.3,20.8,22,20.8,19.8,17.4,18.5,18.2,17.7,16.6
1976,17.8,19,20.2,21.9,21.2,21.8,19,19.1,19.2,19,17.8,17.7
1977,17.1,18.7,19.9,20.5,21.4,22.1,20.3,18.5,19.3,18.5,17.5,17.4
1978,18,19,20.2,21.8,22.8,22.5,18,19,19.2,18.5,17,17
1979,17.1,19.1,20.1,21.7,21.4,21.7,20.5,18.9,19,18.8,17.9,17.7
1980,18.3,19.5,20.9,21.7,22.6,22.8,19.8,19.1,19.3,18.5,18.3,17.5
1981,17.7,18.3,19.2,19.8,20.9,21.2,18.5,18.7,17.9,17.2,16.3,16.7
1982,17.8,18,19.6,20.4,20.7,21.6,20.7,19.5,19.6,17.9,17.2,16.7
1983,16.1,18.4,19.3,20.5,21.4,21.2,21.1,19.9,20.1,18.6,17.9,16.9
1984,17.1,18.2,19.9,20.7,20.2,20.8,19.4,19.8,18.5,18.8,16.8,15.9
1985,18,17.3,21,20.7,20.5,21,19.8,19.3,19,19,17.6,16.9
1986,17.3,19.7,20.4,20.3,20.9,21.7,19.6,19.2,18.8,18.5,17.8,16.5
1987,17.5,19.1,20.1,20.8,20.3,21.5,20.7,19.9,20.4,18.9,18.3,17.4
1988,18,19.5,20.7,21.3,22.2,21.7,19.7,18.5,19,18.6,17,17.2
1989,16.2,17.7,19.3,19.8,21,21.2,20.3,19.5,19.3,18.9,18.2,17.2
1990,17.8,18.5,19.5,21,22.2,22.5,20.5,20.7,20.1,19.1,18.6,17.9
1991,18.2,19.5,19.2,21.9,22.2,21.9,19.7,19.1,18.8,18.3,17.6,16.5
1992,15,16,19.1,20.9,21.7,21.5,19.7,18.8,18.9,18.3,17.6,16.9
1993,17,17.6,20.8,19.9,21.5,22.1,19.5,19,19.2,18.6,18.2,16.2
1994,18.1,18.7,18.5,22.1,22,21,19.9,19.2,18.3,18.8,18.2,17.5
1995,18,18.4,19.6,21.2,22.5,21,19,18.9,18.9,18.3,17.8,17
1996,16.8,19.6,19.9,22.1,21.6,20.6,20.2,19.2,19.9,19.1,17.2,17.4
1997,17.7,18.6,20.1,20.6,21.1,21.7,20.1,19.9,20.3,18.8,18.5,17.4
1998,17.7,19.6,20.6,22.6,22.5,23,19.5,19.1,19.4,18.4,18.2,17.4
1999,17.8,20.8,20,21.7,22.8,22,19,18.5,18.8,17.5,18,17.6
2000,17.3,19.6,19.6,22,21.8,22.3,20.7,19.3,19.3,18.1,17.7,17
2001,17.8,18.5,20.3,22.7,21.7,21.4,20,18.3,19.2,19,17.8,18
2002,17,19.8,20.6,22.1,23.1,22.2,20.9,19.9,19.9,18.9,18.7,18.1
2003,18.5,20.6,20.2,22.2,23.4,22,19.4,19.5,19.3,19.1,18.6,16.6
2004,18,18.9,20.5,21,21.4,20.5,20.1,19.4,19.2,17.9,17.6,17.3
2005,17.6,20.9,20.5,21.4,20.9,21.2,19.8,19.9,19.8,18.4,17.4,16.2
2006,17.9,19.8,20.2,20.6,23.4,21.8,19.6,19.8,19.3,19.2,18.2,16.1
2007,17.4,19.6,20.1,21.6,22.4,21.7,19.7,19.7,20,18.2,17.9,16.4
2008,17.7,18.1,19.5,21.7,22.4,22,20.3,19.5,20.1,18.8,17.2,17.6
2009,18.2,20.5,20.3,23.2,22,23,20.2,19.9,20,19.1,18.2,17.8
