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