1901,18.4,19,16.8,22.6,22.8,22.7,22.7,22.6,22.4,21.6,20.7,18.7
1902,18.4,19.5,17.4,22.8,23.1,23.1,22.9,22.9,22.4,21.7,21,19.6
1903,18.5,19.1,17.7,23.3,22.9,22.5,22.7,22.5,21.9,21.3,19.8,17.2
1904,17.2,19,16.5,22.2,22.6,22.6,22.6,22.9,22.6,21.8,20.3,18
1905,19.5,19.5,16.4,22.7,22.9,22.8,22.9,23.1,22.6,21.8,20.9,20.6
1906,19.2,20.4,16.8,23.2,23.4,23.2,23.1,23.3,22.9,21.5,20.1,19.1
1907,18.4,19.4,16.4,22.3,22.5,22.5,22.8,22.7,22.5,21.9,21,17.8
1908,18.5,19.2,16.3,22.3,22.6,22.6,22.8,22.8,22.6,21.7,20.2,18.8
1909,18.4,19.6,16.7,22.6,22.3,22.9,22.7,23.1,22.8,22,20.3,18.4
1910,18.9,19.1,16.3,22.4,23,22.8,22.9,23,22.1,21.4,20.5,17.7
1911,18,18.9,16.6,22.8,22.9,22.8,22.9,23.3,22.8,21.8,21.5,19.9
1912,18.7,19.7,18,23.1,24.2,23.6,22.6,22.4,22.3,21.4,19.6,18.6
1913,17.9,19.5,17.2,23.1,22.1,22.6,22.2,22.5,22.4,21.4,19.9,18.7
1914,17.4,19.4,17.1,23.3,24,22.7,22.6,22.7,22.2,21.2,20.8,19.4
1915,18.4,20.3,17.3,23.2,23.2,23.3,22.9,23.1,22.2,21.4,19.9,17.3
1916,17.2,19,17.2,22.8,22.7,22.3,22.8,22.8,21.9,21,19.3,17.8
1917,18.1,19,16,23.1,22.9,22.3,22.3,22.3,21.9,20.7,19.7,17.9
1918,16.5,17.6,15.9,21.8,22.4,22.6,23.2,22.8,22.6,21.6,21,19.5
1919,18.7,19.7,17.8,23.2,23.3,22.5,22.6,22.5,22.2,21.4,20.2,19
1920,17,19.4,17.1,22.8,23.3,22.8,22.6,23.2,22.4,21.1,20.8,19.1
1921,17.7,18.8,16.9,22.3,22.5,22.6,22.2,22.5,21.8,21.2,19.5,18.4
1922,18.6,19.6,16.1,22.7,22.9,22.7,22,22.6,22.7,21.2,19.9,18.2
1923,17.6,18.4,16.2,21.9,21.9,22,21.9,22,21.9,21.1,20.6,19
1924,18.4,19.4,16.9,22.4,23,22.6,21.9,22.7,22.8,21.4,20.8,17.3
1925,18.5,18.6,16.5,21.8,22.8,22.4,22.6,22.7,22.3,20.9,20.4,17.5
1926,18.2,19.6,16.7,23.5,23.8,23,22.8,22.4,22.3,21.2,20.3,18.9
1927,18.1,19.4,17.4,22.1,22.3,22.4,22.4,22.5,22.3,21.1,20.6,18.9
1928,20.1,19,17.9,22.6,23.2,22.8,23,23,22.3,20.5,20.1,20.1
1929,19.7,19.7,16.5,22.5,24.1,23.1,22.7,22.7,22.4,21.5,20.1,19.8
1930,16.4,19.5,16,23.8,23.2,23.2,22.9,23.1,22.1,21.5,21.2,19.7
1931,19.5,20.7,18,24.2,23.6,23.6,23,23.1,22.2,20.3,20.2,19
1932,17.9,18.7,15.7,22.8,23.6,23,22.4,22.9,21.7,21.2,20.4,18.4
1933,16.6,20.3,16.3,23.1,23.3,23.5,22.7,23,22.3,21,19.6,19
1934,16.9,18.4,15.7,21.5,22.9,22.8,22.3,22.8,22.5,20.2,20.8,18.8
1935,19.2,20.4,17.9,23.2,22.6,23.1,23,22.7,22,21.8,21.4,18.6
1936,17.9,19.9,15.2,23.3,22.8,22.9,22.8,22.4,22.2,20.5,20.6,19.5
1937,19,19.7,18.5,23.3,23,22.8,22.8,22.8,22.1,21.4,20.6,19.1
1938,18.4,19.2,15.3,22,22.6,23,22.3,21.9,22.1,21.5,20.5,19.4
1939,18.6,19,16.6,22.5,22.8,22.8,23.4,23.1,22.4,21.8,21.4,17.1
1940,16.3,19.1,16.9,22.1,22.7,22.8,22.9,22.4,22.6,21.6,21.1,19.8
1941,20.7,20.9,17.1,23,23.4,23,23.3,23.2,22.5,21.9,21.2,19.5
1942,18,19.5,17.3,22.4,22.6,22.9,22.6,22.4,22,21.5,20.3,18.9
1943,17.3,18.8,16.6,21.9,22.7,22.5,22.7,22.6,22.5,21.7,20.5,18.4
1944,18.6,19.5,16.7,22.6,22.7,22.6,22.7,22.8,22.6,21.8,20.9,17.9
1945,18.1,19.2,16.5,22.1,22.3,22.4,22.9,22.7,22.2,21.1,21.1,18.8
1946,17.2,18.7,17,22.2,22.3,22.7,22.4,22.5,22.3,20.9,20.8,19
1947,20.3,19.2,16.7,21.4,22.6,22.4,22.6,22.6,22.3,21,19.9,18.3
1948,17.9,19.8,17,22.5,22.8,22.8,22.7,22.7,22.4,21.8,18.4,19.3
1949,17.4,18.9,16.5,22.3,23,22.6,22.9,22.7,22.5,21.6,20.4,19.5
1950,19.4,19.4,17.2,22.1,22.8,22.6,22.7,22.9,22.3,22.2,21.1,17.8
1951,18.2,19.5,16.5,23.1,22.9,22.9,22.5,23.2,22.8,22.2,21.7,19.4
1952,18.8,20.3,17.5,22.7,23.6,22.9,23.1,22.6,22.2,21.4,20.5,17.6
1953,18.6,19.6,17,22.1,22.4,22.6,22.4,22.9,22.4,21.9,21,19.5
1954,20.3,18.9,15.9,22.8,22.7,23.1,23,23.1,22,21.1,19.8,18.1
1955,16.8,19.3,17,21.6,22.8,22.2,22.6,22.3,22.1,21.4,20.3,17.7
1956,16.7,19.8,16.7,22.6,22.6,22.1,22.5,22.3,22.5,20.9,19.7,18.1
1957,17.5,18,16.2,22.1,22.5,22.1,22.6,22.7,22.6,21.4,20.6,19.6
1958,18.7,18.9,17.8,23.3,23.4,22.9,22.8,22.2,22.1,20.9,19.3,17.7
1959,17.2,20.3,15.3,22.1,22.6,23.2,22.6,22.6,21.8,20.8,20.6,20.2
1960,18.3,18.6,17.6,22.5,22.4,22.6,22.7,23.2,22.3,21.7,21.5,18.5
1961,17,19.1,17.2,22.2,22.4,22.5,22.6,22.8,22,21.2,20.5,19.5
1962,17.2,18,16.3,22.1,22.4,22.3,22.9,22.5,22.6,21.4,20.2,18.2
1963,14.4,17.4,15.5,22.2,22.8,21.9,22.3,22.8,22.5,21.6,21.6,18.2
1964,19.4,18.1,16,22.8,21.9,22.4,23.1,22.6,22.1,21.8,19.7,17.9
1965,16.4,19.9,15.7,21.9,22.4,22.2,22.4,22.4,21.4,21.7,21.2,20
1966,20.1,20.7,17.9,22.7,22.4,23,23,22.8,21.7,22.2,20.7,20.8
1967,18.1,18.6,17.1,22.6,23.2,23.5,22.7,23.5,22.2,20.7,21.2,17.7
1968,18.3,18.7,16.4,22,22.7,22.6,23.2,22.8,22.4,21.2,21.1,20
1969,20.3,19.6,17.7,23.1,23,22.9,22.7,22.8,22.8,21.4,19.5,17.2
1970,18.3,19.3,17,21.7,22.6,23,22.2,21.4,21.8,20.6,20.3,19.6
1971,16.4,17.5,15.3,21.7,23.6,22,23,23,22.7,21.2,19.2,19
1972,17,20.3,16.1,21.1,23,23,23.2,22.2,22.2,22.8,21.7,20.1
1973,18.8,20.5,18,23.9,23.2,23.3,23.1,23.2,22.4,21.4,19.9,17.8
1974,17.8,18.1,15.3,22.2,22.4,22.6,22.8,22.9,22.3,21.5,20.3,18.8
1975,19,19.8,17,22.7,22.8,22.5,22.8,22.7,22.8,21.7,19.9,17.4
1976,17.2,20.1,16.5,22.8,23.2,22.6,23,22.7,22.3,21.6,19.2,19
1977,18.5,18,15.9,22.3,22.5,23.5,23.1,22.7,22.4,21.4,20.6,19.6
1978,19.9,19.6,18.1,22.2,22.4,22.5,22.6,22.3,22.3,20.8,21,19.4
1979,20,20.7,18.5,22.8,22.6,23.6,23.6,23,22.4,21.1,20.9,19.8
1980,19.5,20.3,18.7,23.5,23.3,23.1,23.3,23.3,22.5,22,21.3,19.8
1981,18.1,20.5,17.4,22.6,23,22.7,22.8,23.8,23.8,22.2,21.3,18.3
1982,17.8,20.4,17.7,22,22.9,22.4,22.8,22.4,22.2,22.1,22.4,18
1983,18.5,20.9,17.8,24.8,24.4,22.9,23.7,23.5,23.2,22.1,19.5,18.7
1984,17.7,19.2,16.4,23.3,22.4,22.1,22.4,22.4,21.5,21,20.5,19
1985,18.2,20.6,16,21.6,21.9,22.3,21.7,22.4,21.9,21.3,21.7,19
1986,17.4,19.6,16.4,22.2,22.4,22.6,22.2,22.3,21.9,21.4,20.3,18.6
1987,18.4,19.4,17.3,22.4,22.5,22.8,22.8,23.3,22.2,22.3,21.5,16.9
1988,19.5,20.1,16.8,21.5,22.4,22.1,22.6,22.7,22.5,20.9,19.5,18
1989,19.6,18.6,16.1,22.7,22.6,22.1,23,22.8,22.6,21.7,20.3,18.1
1990,19.3,20.3,16.2,22.5,22.2,22.8,22.5,23.2,22.4,21.5,21.2,19.3
1991,19.9,20.1,18.1,23.6,23.3,22.9,23.1,22.6,22.9,21.2,20.1,19.6
1992,18,20.1,18.2,24.2,23.5,23.1,22.5,22.7,22.2,20.6,19.6,19.8
1993,18.1,19.3,16.8,22.6,22.7,23.1,22.5,22.6,22.4,21.5,20.8,19
1994,19.2,20.8,16.2,22.9,23.3,22.3,22.9,22.7,22.7,20.7,20.7,20.8
1995,18.7,18.9,16.7,23.8,23.1,23.1,22.8,23.5,23,21.7,21,18.9
1996,19.2,18.3,16.4,22.1,22.1,22.7,22.8,23,22.5,21.6,21.4,18.9
1997,18.4,19.6,16.5,21.7,22.8,22.9,22.9,22.9,22.9,22.5,21.7,20.4
1998,20.3,21.5,18.2,23.4,23.6,23.2,23.1,22.7,23.1,22.2,21.7,19.9
1999,19.5,19.8,17.3,22.6,22.3,22.2,23.1,23.4,22.8,22.1,20.7,17.9
2000,19.7,19.4,17.2,22.4,22.5,22.2,22.9,23.6,22.6,22.2,20.5,20.8
2001,20.9,20.2,16.5,24.1,23,22.1,23.1,23.2,23.2,22.3,19.7,19.5
2002,18.9,19.9,17.3,22.7,22.2,22.6,23.3,22.7,22.2,21.7,21.5,21.2
2003,18.6,19.9,16.6,22.9,23,22.3,22.6,23.1,22.4,21.8,21.3,18.8
2004,19.4,19.8,17.4,22.9,23.9,22.6,23.5,23.5,22.8,21.8,21.7,19.2
2005,19.8,22.1,16.7,23.5,23,23.7,23,23.1,23.6,19.6,21.8,19.8
2006,19.8,20.7,16.9,22.9,22.9,22.9,23.6,23,23.1,22,21.6,20.2
2007,19.7,21,18.1,22.4,22.6,21.6,23.2,22.4,22.9,21.8,20.3,20.7
2008,19.6,18,16.2,22.8,22.3,22.7,23.4,22.7,23.1,22.5,21,19.4
2009,18.2,21.3,16.9,22.9,23.1,23.2,22.8,23.6,22.7,22.7,21,20
