1901,18.6,18.5,16,15.2,10.6,8,6.8,9.1,11.2,12.4,15.1,17.2
1902,16.9,18.4,16.9,14.3,11.4,7.3,7.6,8.5,11.6,13,14.5,17
1903,18.6,17.7,16,13.9,11.5,7.5,7.1,9.7,11,13.8,14.5,16.9
1904,18.2,17.4,16.3,14.7,11.5,8.6,7.7,9.3,11.5,13.3,15.5,16.1
1905,17.8,16.8,15.2,14.8,11,7.4,7.9,8,11.6,13.5,14.4,16.8
1906,18.9,17.3,16,13.4,10.9,8.8,7.5,8.6,11,12.4,14.6,16.3
1907,17.4,17.8,17.2,13.2,10.5,7.5,7.1,9.5,11.6,12,14.1,15.8
1908,17.1,17.5,15.9,12.8,10.5,8,7.3,9,12,12.6,14.8,16.8
1909,17.6,16.6,15.6,14.3,10.6,8,8,9.5,10.9,13,14.2,16.4
1910,17.2,16.5,16.1,13.1,10.2,6.7,7.1,7.9,10.6,12.4,13.1,15.5
1911,17.1,18.3,16.2,13.5,10.3,6.6,6.5,8.4,10.5,14.4,14.5,16.7
1912,17.1,17.7,15.2,14.5,11.6,8.6,7,9.4,11.1,13.1,14.6,16.6
1913,18.2,18.7,15.3,13.9,11.4,8.3,7.6,9.9,12.4,12.9,15.6,16.2
1914,18.3,17.6,16.9,14.4,12.2,7.5,7.5,9,12.4,13.8,15,17.3
1915,19.6,18.1,17.1,14.4,10.7,7.9,7.5,8.5,11.8,12.3,14.4,16
1916,16.2,17,15.8,13.9,9.2,7.8,7.5,8.2,11.6,13,15,16.7
1917,17.2,17.1,16.7,13.6,10.7,8.2,6.9,7.6,11,12.2,14,16
1918,16.5,17.5,16.7,13.4,9.8,7.4,7.4,8.6,12.3,14,14.7,16.5
1919,17.4,17.6,16.6,15.5,10.6,8.6,8.1,8.7,11.1,13.4,14.2,15.7
1920,18.4,17.4,16,13.6,11.2,7.1,7.9,9.6,11.4,13.1,15.6,15.5
1921,16.7,18.2,16.5,13.3,10.1,7.5,6.2,8.7,10.6,12.9,15.3,16.6
1922,18.3,17.5,16.5,14.1,10.1,8,7.9,9.7,12.6,13.9,15.1,17
1923,17.6,17.7,17.7,13.8,10.9,8.2,8,9.4,11.8,14.6,16.4,16.4
1924,17.6,16.8,16.2,13.4,10.8,7.7,7,8.5,11,12.7,15,16.9
1925,17.8,18.6,17.2,14.4,11.7,7.4,8,9.5,12,13.1,15.7,17.1
1926,19.2,18.5,16.4,14.1,11.3,8.5,7.5,9,11.7,13.8,14.5,16.9
1927,18.1,17.8,16.4,15,10.6,8.1,8.1,9.1,12.2,13.7,15.5,16.8
1928,17.7,16.8,16.8,14.5,11.1,8.5,7.8,8.4,11.5,13.8,15.4,17.4
1929,17.6,17.4,15.6,14.1,11.7,8.5,7.5,9.2,12.9,14.1,15.8,17.4
1930,17.6,16.9,17.2,14.1,10.6,8,7.6,8.7,10.7,13.6,14.3,17.6
1931,17.9,18.9,16.7,14,11.8,8.2,7.5,9.5,11.6,14,15.8,17.1
1932,17,17.8,16.9,15.6,11.2,9.2,7.4,9.5,13.1,13.5,15.8,16.6
1933,17.6,17.7,16.7,14.5,11.7,8.6,7.7,9.4,11.7,13.5,14.6,16.3
1934,16.9,17,16.7,15.1,12.7,9.9,7.6,10.5,12.1,13.5,15.6,16.8
1935,17,16,15.1,13.9,10.8,8,7.9,7.6,11.4,13.5,14.6,15.5
1936,16.5,16.6,17.1,14,10.4,8.6,8.1,9.9,11.4,12.3,13.7,16.3
1937,17.6,18.5,17.4,14.3,11.9,8.6,7.6,9.5,11.4,13,15.5,15.9
1938,17.2,17.3,17.2,15.4,11.1,9,8.6,9.4,12.7,14.3,15.2,17.6
1939,17.4,18.8,16.7,14.4,11.7,8.8,7.8,9,10.4,14.4,14.9,16
1940,17.6,18.2,17.9,14.3,11.3,8.7,7.1,9.7,13.2,13.2,15.5,18.2
1941,18,18.6,16.3,15.3,12.3,8.6,8,9.5,11.8,15.1,15.7,17.7
1942,19.4,19.1,17.9,14.9,10.8,8.3,8.2,10.8,12.1,14.2,15.9,17.1
1943,17.9,16.7,16.9,15.4,11.8,8.1,8.4,9.5,11.2,14.5,17.2,17
1944,19,18,16.6,13.5,9.6,8.7,7.9,9.9,12.8,14.8,15.5,16.9
1945,16.7,18.1,16.7,14.3,9.4,7.1,7.2,8.6,12.5,13.9,16.1,16
1946,17.9,18.1,17.4,15.4,12.3,8.6,8,8.8,12,14.5,16,16.8
1947,17.5,18.2,16.5,15.4,11,10.1,6.8,9.9,11.8,14,16.3,17.2
1948,17.6,17.6,17.2,14.3,12.2,8.8,8.4,9.7,11.5,14.3,14.5,16.5
1949,18.6,17,16.7,14.6,10.6,9.9,7.6,10.1,12.6,14.2,15.7,17.4
1950,17.5,18.1,19.1,15.5,11.8,9.5,9.1,10.3,13,12.9,14.7,17.4
1951,16.4,16.8,16.6,15.2,12.1,6.9,7.4,9,11.4,14.6,15.4,16.2
1952,18,18.5,16.7,14.3,11.2,9.4,9.7,9.9,11.7,13.6,16.6,16.5
1953,18.4,18.3,16.2,13.7,12,8,7,9.9,10.5,14,15.4,17.3
1954,17.1,18.4,17.1,14.3,11,8.7,6.5,9.1,11.7,14.2,15.2,17.1
1955,17.3,17.6,15.9,14.6,11.4,9.1,8,9,10.1,12.6,13.3,16.6
1956,16.6,18.2,17.7,14.3,11.5,7.7,8.2,10.3,10.7,12.9,15.6,15.4
1957,18.5,19.3,17.5,15,10.2,7.3,8.7,8.7,13.3,14.7,15.9,17.8
1958,19.2,18.2,17.3,15.4,12.4,7.1,8.2,9,11.8,13.7,16.7,17.3
1959,17.2,18,16.4,14.8,10,7.5,8.3,9.2,10.3,14.1,15.4,17
1960,17.2,18,17.3,13.8,9.9,7.2,6.3,11.3,12.4,15.1,16.2,17.9
1961,18.3,18.6,18.4,15.9,11.5,11,9.1,9.3,13,12.8,15.9,16.1
1962,17.9,18.5,17,14.4,9.8,8.4,8.4,10.7,12.7,15.4,16.5,17.8
1963,17.7,18,15.9,13.8,10,8.7,8.2,9.3,13.9,15.8,16.5,16.5
1964,17.9,17.7,18.1,14.1,10.8,7,6.4,9.3,12.7,14.3,15.6,17.4
1965,18.2,18.3,16.6,14.3,10.6,7.4,8.6,10.7,13.3,12.6,15.2,16.6
1966,19.2,17.4,16.8,13.8,11.3,9.8,7.7,10.4,12.2,14.2,15.8,18
1967,18,18.3,16.9,15.4,12.2,8.8,6.7,9.8,13.1,14.4,16.4,17.4
1968,18.8,17.6,16.8,13.2,11,6.7,8.4,10.6,12.1,13.6,14.4,17.9
1969,19,19.7,17.7,14.9,11,8.4,9,9.8,12.5,14.8,16.1,17.4
1970,18.5,17.6,16.6,14.3,11.8,8.7,8.1,10,13.3,13.9,16.1,18.2
1971,18.3,17.8,18,15.6,10.9,8.3,7.5,9.2,13.1,14.1,15.2,17.1
1972,18.8,17.6,17.2,15.9,11.1,8.3,8.2,9.5,11.2,15.3,15.3,17.8
1973,18.1,17.8,18.8,14.2,11,8.1,7.6,8.9,11.6,14.2,15.3,16.8
1974,19,19.2,17.9,14.4,11.6,8.3,8.3,9.2,12,14.8,16.3,17.8
1975,18.5,18.9,16.6,14,11.5,8.7,7.6,9.8,14.8,13.7,15.1,17.1
1976,18.3,18.7,17.8,15.1,11.1,8,7.7,9.4,13.4,14.2,15.6,17.7
1977,19.1,20.1,17,16.1,10.8,8.8,8.3,8.6,13.2,15.8,16.3,18.5
1978,18.6,19.4,19.4,14.6,11.2,7.5,10.1,12.5,12.7,14.1,16.5,17.7
1979,17.9,19.9,17.9,16.3,12.5,8.8,8.7,11.4,12.4,14.5,15.7,17.3
1980,17.6,19.2,18.4,15,11.6,8.4,8.1,10.6,13.2,14.8,16.7,17.9
1981,19.5,19.5,17.6,15.1,12,8.1,9,9.7,11.5,12.1,16.4,17.6
1982,18.7,19.4,17.9,14.9,11.6,8.2,9,10.7,14.3,14.3,15.6,17.7
1983,19.4,18,17.7,16.9,12.3,9.5,9.1,9.7,13.4,14.7,17.1,18.7
1984,18.5,18.9,18.3,14.7,11.9,7.9,9.6,10.2,13.1,15.5,15.8,17.6
1985,19.6,19.9,18.2,15.4,11.1,9.2,8.5,10.7,12.9,15.4,17.3,18.2
1986,19,18.3,17.9,16.8,11.5,9.5,8.4,11.1,12.9,14.4,15.6,18.2
1987,19.1,20.4,18.6,17.1,13.1,8.6,8.3,9.7,13.6,14.3,16.7,19.3
1988,19.4,20.2,19.8,15.5,12.1,8.6,8.5,11.7,12.7,14.2,15.7,17.4
1989,18.8,18.7,18.4,15,12.7,9.2,8.5,11.1,11.7,13.7,16.4,18.3
1990,18.7,18.3,17.4,16.8,11.7,8.6,9.3,10.4,12,14.7,15.8,17.7
1991,18.8,19.7,17.9,15.1,11.8,9.7,9,10.1,13.8,15.7,16.8,17.8
1992,19,19.7,17.4,16.5,11.5,7.1,7.8,10.2,13.2,14.7,15.5,18.4
1993,18.6,18.6,17.7,15.4,13.3,9.1,10.1,10.2,13.2,15.7,15.8,17.5
1994,17.7,18.4,17.2,15.5,11.4,8.4,7.5,9.8,12.1,13.4,15.5,16.8
1995,18.5,18.6,17.2,14.5,11.5,8.6,8.1,9.7,13,14.6,15.8,16.7
1996,19.1,19,16.7,14.8,11.7,8.1,8.1,9.3,12.2,15.2,15.9,18.2
1997,18.5,18.6,17.7,14.1,11.4,8.8,9.1,11.2,13.6,14.2,15.3,17
1998,18,19.4,18,16.1,10.9,7.8,9.6,10.4,12.7,14.2,15.9,17.8
1999,19.3,19.1,18.4,15.6,12.2,9,9.1,10,11.6,13.7,16.7,18.8
2000,18,19.5,18.7,14.7,11.1,9.3,7.9,11.3,12.2,14.8,16.3,18.2
2001,18.6,18.5,17.8,16.5,11.9,9.5,9.4,10.8,12.6,15.2,16.7,18.2
2002,18.8,18.4,18.3,15.9,11.8,9.6,8.1,11.4,13.1,14.2,14.6,18.1
2003,18.6,20,17.9,16.2,11.3,9.2,7.7,9.2,12.1,14.5,16.1,17.5
2004,15.7,19.4,17.5,15.7,11.4,8.3,7.6,11.2,11.8,14.3,17.5,18.8
2005,18.7,19.3,17.1,15.3,11.9,9,8.1,10.7,13,15.3,16.8,16.3
2006,19.9,21,16.7,15.5,10.7,7.8,8.9,11.3,13.2,16.4,17.1,18.5
2007,18.4,18.6,16.5,15.8,10.4,8.7,7.6,9.2,13.3,14.9,16.1,17.6
2008,19,18.6,17.6,13.2,12.6,9.5,8.6,9.3,11.4,14.3,16.8,18.4
2009,18.3,19.3,16.7,14,11.8,10.8,7.8,9.8,12,15.2,15.5,17.7
