1901,17.8,17.8,17.8,17.3,15.1,12.5,12,13.5,15.5,17.6,18.1,18
1902,17.8,17.8,17.8,17.4,15.1,12.7,12.2,13.6,15.6,17.6,18.1,18.1
1903,17.8,17.8,17.8,17.4,15.2,12.6,12,13.5,15.8,17.8,18,17.9
1904,17.7,17.7,17.7,17.3,15,12.7,12,13.4,15.4,17.7,18.1,17.9
1905,17.8,17.8,17.7,17.2,15.1,12.8,12,13.6,15.7,17.9,18.1,18.1
1906,17.9,17.7,17.8,17.2,15.1,12.6,12.1,13.4,15.5,17.6,17.9,18
1907,17.8,17.7,17.8,17.3,15.1,12.6,11.9,13.3,15.5,17.7,18,18
1908,17.8,17.8,17.8,17.4,15,12.6,12.1,13.6,15.6,17.8,18.2,18
1909,17.8,17.8,17.8,17.3,15.1,12.6,12.1,13.5,15.5,17.7,18.1,18.1
1910,17.8,17.8,17.8,17.2,15,12.6,12,13.5,15.5,17.6,18.1,18
1911,17.7,17.7,17.7,17.2,15.1,12.5,11.9,13.4,15.4,17.7,18.1,18.2
1912,17.9,17.9,17.7,17.4,15.3,12.6,12,13.4,15.6,17.6,18.3,17.9
1913,17.8,17.8,17.8,17.3,15.1,12.5,12.1,13.5,15.6,17.8,18.2,18
1914,17.9,17.8,18,17.3,15.2,12.7,12.1,13.6,15.7,17.9,18.2,18.1
1915,17.8,17.8,17.8,17.4,15.1,12.7,12.3,13.5,15.7,17.9,18.2,18.1
1916,17.8,17.8,17.9,17.4,15.1,12.6,12.1,13.5,15.7,17.9,18.1,18.1
1917,17.9,18,17.9,17.3,15.2,12.7,12.2,13.5,15.5,17.8,18.1,17.9
1918,17.6,17.8,17.8,17.2,15,12.5,12,13.3,15.6,17.9,18.2,18.1
1919,17.8,17.8,17.8,17.4,15,12.6,12,13.4,15.5,17.6,18.1,18.1
1920,17.9,17.9,17.8,17.3,15.2,12.7,12.1,13.5,15.7,17.9,18.2,18.1
1921,17.9,17.9,17.9,17.3,15.1,12.7,12.1,13.4,15.6,17.8,18.1,18
1922,17.9,17.8,17.9,17.4,15.2,12.7,12.1,13.7,15.7,17.7,18.2,18.1
1923,17.9,17.3,17.8,17.1,15.1,12.3,12.1,13.4,14.6,17.7,18.3,18
1924,17.7,17.4,17.4,17,15.2,12.8,12.1,13.5,15.6,17.7,18.1,18
1925,17.7,17.7,17.7,17.3,15,12.5,12,13.2,15.4,17.6,18.2,18.1
1926,16.9,17.9,17.5,17.2,15,12.2,12.5,13,15.6,17.8,18.2,18
1927,17.2,17.2,17.1,16.9,14.6,12.2,11.7,12.9,14.8,17.6,18,17.1
1928,16.9,17.5,17.7,17.2,15.2,12.7,11.7,13.6,15.3,17.9,17.5,17.4
1929,17.7,17.1,17.4,16.8,14.4,12.4,12.1,13,15.2,17.8,18.2,17.3
1930,17.7,17.2,18.1,17.5,15.2,12.7,12.1,13,15.1,17.6,17.1,18
1931,17.9,17.8,17.9,17.4,15.4,12.7,12.2,13.5,15.7,17.8,18.1,18
1932,17.8,17.8,17.7,17.3,15.3,12.8,12.1,13.4,15.8,17.7,18,17.9
1933,18.4,18.1,18.2,17.5,15.6,13.6,12.8,13.7,15.8,17.8,17.6,18.2
1934,17.5,17.7,17.6,17.2,16.4,12.7,13.1,14.8,15.7,17.9,18.3,18.2
1935,18,17.6,18.1,17.1,16.4,13.1,12.2,13.4,16,18.9,18.4,18.4
1936,18.2,18.7,17.9,18,16.7,13.2,12.9,13.5,15.8,18.1,18.9,17.7
1937,18.5,18.7,17.6,18,15,12.7,12.2,13.2,16.2,17.9,19.1,18.1
1938,18,18.2,17.9,17.6,15.2,12.6,13,13.5,16.2,18.2,18.6,18.2
1939,17.8,18.3,18.2,17.5,16.4,13.4,13.1,14.7,16.2,17.7,18.2,17.8
1940,17.9,17.9,18,17.2,15.7,13.9,12.8,14.5,16.4,17.2,17.6,17.8
1941,18.6,18.3,18.2,17.7,16.1,13.8,12.7,14.5,16.2,18,17.9,18.2
1942,18.2,18,18.3,17.4,16.3,14,12.8,14.9,15.7,17.4,16.8,17.8
1943,17.8,17.7,17.3,17.1,16.2,12.8,12.4,13.5,15.2,17,18,17.6
1944,17.2,17.8,17.6,17.3,15.6,14.6,13.2,14.1,16.7,18.7,18.5,18.2
1945,18.4,18.2,18,17.6,16.3,11.9,12.4,13.8,15.5,18.4,18.7,17.7
1946,17.9,17.7,17.9,18,16.5,12.6,12.5,13.4,15.9,18.5,18.3,18.3
1947,18.3,17.6,18.4,17.9,15.6,13.2,12.9,13.3,15.9,17.6,18.6,17.7
1948,17.8,17.9,17.9,17.7,16.2,13.8,12.8,14.1,15.4,17.8,17.9,18
1949,17.9,17.3,17.2,17.6,15.5,13.5,13.3,14.5,16.3,18.1,18.8,17.9
1950,17.9,17.7,18.4,17.2,14.3,12.8,12.6,13.5,15.1,17,17.4,17.6
1951,17.6,17.7,17.7,17.2,15,12.8,12.3,13.6,16.5,17.9,18.4,18.1
1952,18.5,18.4,17.9,17.5,15.7,13.4,12,13.8,16,17.5,17.4,17.7
1953,18.2,17.6,17.8,17.4,15.3,12.2,12.5,13.8,15.4,17.3,18.4,17.8
1954,17.7,17.5,17.4,16.5,15,12.1,11.5,13.6,15.4,17.4,17.7,18
1955,17.8,18.5,17.3,16.9,15,12.9,12.5,13,15.8,17.7,18.3,17.8
1956,17.5,17.5,17.6,17.2,15,12.6,10.8,13.9,15.1,17.3,18,17.7
1957,18,17.6,17.7,17.4,15.4,12.2,12.2,14.1,16.3,18.4,19,18.7
1958,18.5,18.6,18.3,17.6,14.7,13.3,11.2,13.6,16.7,18.1,18.8,18.5
1959,18.6,18.2,18.3,17.2,15.2,13.4,12.7,14.3,16,18.3,18.1,18.3
1960,18.3,17.7,17.7,17,14.6,13.8,11.8,13.6,15.7,17.7,18.5,18
1961,18.2,18.1,18.1,17.9,16.6,14.6,13.5,14.5,16.3,18.3,18.3,18.8
1962,18.3,17.7,17.6,17.4,14.8,13.6,13.2,15.1,16.1,17.9,17.5,17.6
1963,17.1,17.3,17.3,16.7,14.2,11.5,12.2,12,15.3,17.7,17.8,17.7
1964,17.8,18,18,17.4,14.1,12.5,10.5,13.2,14,16.7,17.2,17.1
1965,16.8,17.2,17.3,16.7,13.9,11.2,11,12.9,15.5,17.3,18.2,17.8
1966,17.7,18,17.9,17,15.2,13.4,12.2,13.6,16.3,17.5,17.8,17.7
1967,17.6,17.8,17.5,17.5,15.6,13.5,12.3,13.4,15.7,17.3,17.7,18.5
1968,17.5,17.6,17.2,16.9,14.2,12.4,11.7,12.3,14.9,17.1,17.6,17.3
1969,17.2,18.4,18,17.9,15.3,12.4,12.2,13.8,15.4,17.4,18.1,17.4
1970,18.1,18.1,17.9,17,14.2,12.8,12.1,13.9,15.4,17.1,18,18.1
1971,17.7,17.3,16.9,17.2,14.9,11.6,12.2,12.6,15.2,17.1,17.7,17.7
1972,17.1,17.3,17.4,17.2,15.9,12.8,12.3,13,15.7,18,18.5,18.6
1973,18.5,16.9,17.8,16.8,14.7,12.2,10.4,13,15.1,16.9,17,16.8
1974,16.5,16.5,16.7,17,14.6,11.6,12.1,12.7,13.8,17.1,17.5,16.7
1975,17.2,16.5,17.6,17.1,15,13.1,12.4,12.8,15.4,17.2,17.3,17.3
1976,17.3,17.2,17.8,17.1,14.8,12.5,11.5,13.2,15.7,18.4,17.7,18.4
1977,18,18.1,18.1,17.6,15.9,12.5,12.2,13.9,15.9,18.1,18,18.1
1978,17.7,18.1,17.8,17.2,14,12.8,11.7,13.4,15.6,17.8,18.2,18.7
1979,17.7,18.3,17.6,18.1,15.8,12.2,12.1,14.1,15.4,16.8,18.4,18.8
1980,18.1,17.5,17.9,17.5,15.4,11.3,12.2,13.5,16.7,17.9,18.1,18.1
1981,17.7,18,17.9,17.1,14.1,11.8,10.5,13.6,15.9,17.8,18.4,18.5
1982,17.8,18.1,17.6,17.2,15.6,13.6,12.8,13.7,16,17.9,18.5,19.7
1983,18.7,18.4,18.7,17.7,16.3,13.8,13.6,13,16,18.3,18.9,17.7
1984,17.3,17.8,17.6,16.8,15.3,13,13.1,13.5,15.5,18.1,17.7,18.2
1985,18,18.3,17.7,16.9,14.8,12.1,11.9,13.7,16.6,17.8,18.6,18.8
1986,18.3,17.5,17.5,17.1,16.8,11.8,11.1,13.3,15.5,18,18.7,18.7
1987,18.8,18.5,18.4,17.9,16.2,12.1,12.4,15,16.8,18.4,20.1,18.8
1988,18.9,18.3,18.6,17.7,14.8,14.1,13,14.7,16.3,18.2,18.4,18
1989,18.1,17.9,17.7,17.1,15.3,12.8,12,13.7,16,17.7,18.5,18
1990,18,18.2,18.3,17.9,15,13.2,11.2,13.4,16.2,18,19.8,18.3
1991,17.6,18.3,18.1,17.7,16.3,12.6,12.4,13.2,15.3,17.8,17.7,17.5
1992,17.7,18.4,18.7,18.2,16.2,13.9,12.3,13.1,17,17.1,17.5,18
1993,17.5,17.1,17.4,18.1,16.2,12.9,12.5,13.7,15.4,18.4,19,18.7
1994,17.2,18.3,18.1,17.7,16.2,13,11.4,15,16.6,18.1,19.8,18.8
1995,17.9,18.2,18.6,17.8,16.1,13.5,13,15.4,15.5,19.3,20.4,19.5
1996,18.6,18.8,18.6,17.2,15.7,13.1,12.8,14.2,16.4,18.6,19.3,19.7
1997,19.6,18.9,18.5,18.5,16.6,14.6,13.4,14.1,16.8,19.1,20,19.5
1998,18.8,18.8,19,17,16.7,13.4,13.8,15.2,15.8,18.7,20.3,19.4
1999,19,18.8,18.3,17.5,15.8,13.8,12.8,14.6,16.2,17.6,18.3,19.4
2000,18.4,17.5,18.1,18.1,16.1,13.3,12.4,14.4,16.1,17.6,18.3,18
2001,18.4,18.9,18.4,17.6,15.2,13.2,12.6,14.6,16.8,19,18.6,18.7
2002,17.9,17.9,18.6,18.1,15.9,13.3,14.2,14.8,16.8,19.2,18.7,19
2003,19,18.8,18.4,17.8,15.9,14.6,12.8,14.1,16.8,18.7,19.9,19.3
2004,19.2,18.9,18.5,17.3,14.9,12.7,13,15,16.4,18.3,18.1,17.8
2005,18.4,20.1,18.8,17.3,15.3,13.8,12.5,14.5,16.3,18.5,19.6,20.1
2006,17.6,18.1,18.2,17.7,17.1,12.8,13.2,15.3,15.5,19.1,19.9,19.4
2007,18.7,18.9,18.3,17.1,15.5,13.2,12.5,14.2,17.1,17.9,18.3,19.2
2008,18.3,19,18.1,17.6,16,12.8,12.3,14.4,15.6,18.5,18.9,17.9
2009,18.2,22.2,18.4,17.3,15.2,14,12.9,15.1,17.1,19.3,19.1,19.4
