1901,18,19.1,15.8,15.2,12.1,10.7,9.2,10.7,10.8,13.1,14.8,16.4
1902,16.8,19,17.8,14,13.5,9.8,9.8,9.6,10.6,13.7,14.1,16.9
1903,17.4,18,16.7,13.6,11.6,9.2,8.6,9.4,11.5,12.3,14.4,16.9
1904,17.9,18.8,16.6,14.7,12.3,10.2,10.1,10.3,11,13,14.6,15.7
1905,18.1,18.2,16.8,15.1,10.9,8.8,10.5,8.6,11.4,13.3,14.7,16.7
1906,18.4,18.6,16.7,13.7,11.9,10.7,8.3,9.4,10.5,12.5,15.3,16.4
1907,17.2,18.6,17.2,14.2,10.4,9.1,9.7,10.5,11.5,12.3,13.8,16
1908,17.1,18.1,16.4,13.3,12,9,9.6,9.2,10.8,12.8,14.4,17.1
1909,18.5,17.6,16.2,15.3,11.9,10.4,9.4,9.9,11.7,12.8,14.9,15.5
1910,17.9,18.1,16.4,13.9,12.1,9.5,9.8,9.3,10.8,12.9,13.8,16.8
1911,17.9,19.5,17.2,14.2,12.3,9.3,8.5,9.8,11.8,13.5,15.3,16.8
1912,17.7,18.5,17,14.9,11.5,11.1,9.2,9.6,10.7,13.7,14.9,16.9
1913,18.8,19.1,16.8,14.9,12.5,10.8,8.6,10.6,10.7,13.1,15.7,16.4
1914,18.2,18.4,16.8,14.7,12.9,9.5,10,9.8,11.7,14.4,14.7,16.2
1915,19.3,19.3,17.7,13.9,12,9.7,8.2,10.2,11.4,13.3,15.6,17.1
1916,17.7,18.6,16.7,15.4,11,8.8,9.9,10.3,11.6,13.7,15.8,17.4
1917,18,19.5,16.8,14.8,11,9,9.1,9,11,13.2,14.7,17.2
1918,17.7,18.6,16.7,15.5,11.9,9.9,8.5,10.9,12,14.1,15.3,17
1919,18.1,18.9,17.9,15.8,12.6,10.2,9,10.6,10.6,14,15,17.3
1920,19.4,19.1,17.2,15.9,12.6,9.8,10.3,10.7,10.8,13.2,16.7,16.3
1921,17.1,20,18.1,14.6,12.1,10.1,8.2,9.3,10.6,12.7,15.6,16.9
1922,17.4,18.3,17.5,15,11.9,9.2,9.9,9.1,11.6,13.7,14.4,17.1
1923,17.9,18.7,17.5,14.2,11.2,9.3,9,10.6,11.2,14.6,16.1,17.1
1924,18.2,18.5,15.7,15.2,11.1,9.8,9.5,9.4,11.2,12.8,14.8,18.2
1925,17.9,20.1,17.4,14.7,11.9,9.1,9.6,11.3,11.8,13.2,15.3,16.6
1926,19,18.9,17.2,14.9,12.2,9.9,8.3,9.9,10.8,13.2,14.5,16.9
1927,18.6,18.8,16.8,15.3,11.6,10.3,10.1,11.2,12.3,14.1,16.5,17.2
1928,18.5,18.6,17.2,15.1,12.7,9.4,10.7,10.6,11.3,13.1,14.9,17.1
1929,18.3,18.3,17,15,12.3,9.9,9,10.9,11.6,13.9,15.6,17.6
1930,18.2,18.2,17.3,14.6,13.6,9.9,9.8,10.6,10.7,14.3,16.2,17.9
1931,19.5,19.9,18.6,13.9,12.3,9.6,8.9,10.6,11.7,13.4,17,17.2
1932,17.4,19.4,17.9,17.4,14,10,9.6,11.5,11.6,13.9,16.4,16.7
1933,18.6,18.6,16.9,15.8,12.4,8.9,9.2,9.3,11.9,14.4,16.1,18.1
1934,18.1,19.3,17,17,14.2,12.2,8.5,10.5,12.8,14.2,16.4,17.4
1935,18.7,19,16.1,15.1,11.4,9.9,8.9,10.4,11.1,13.8,14.6,16.1
1936,16.7,17.5,18.5,15.7,11.3,11.3,10.6,12,12.4,13.2,14.9,17
1937,18.7,20.5,17.5,15.5,12.7,10,9.9,11.7,11.3,13.9,16,17.4
1938,18.1,18.4,18.1,15.1,12.3,10.9,10.7,9.6,12.4,13.6,15,17.1
1939,18.6,18.7,17.3,14.5,13.2,11.1,9.9,10.4,12.1,14.5,16.3,17.6
1940,19.1,20.1,16.8,14.5,12.6,10.7,10.8,11.9,11.3,14.9,15.3,17.9
1941,19.4,19.2,17.9,15.3,12.3,10.1,10.5,11.9,11.3,14.2,15.2,17.6
1942,18.7,19.7,17.7,16.1,12.6,10,9.9,10.3,11.2,14.5,16.6,16.9
1943,17.5,17.7,18.3,15,11.7,10.1,8.9,10,12,13.9,16,17.6
1944,19.4,19.9,17.4,15.2,11.4,9.5,9.7,10.4,11.7,14.7,15.6,16.3
1945,18.1,19.9,17.2,16.3,13.3,10.2,9.4,10.5,13.1,13.1,16.3,16.4
1946,18.2,19.1,17.4,15.4,13.3,9.7,9.6,10.9,11.7,13.3,16.1,17.5
1947,18.5,20.3,17.7,14.6,12.6,9.2,8.6,11.3,11.9,14.3,16.5,17.2
1948,18.5,18.6,16.4,15,13.4,10,9.8,10.6,10.8,13.6,15.4,17.2
1949,19.3,18.7,18,15.2,13.4,11.7,10.1,10.7,12.2,14.1,14.9,17.5
1950,18.6,19.2,18.6,14.7,13.1,10.8,9.5,10.9,12.3,14.2,15.2,16.2
1951,17,18.3,16.8,15.2,12.9,10.5,9.2,10.8,11,13,15.1,16.8
1952,18.9,19.4,16.7,15.6,12.2,10.4,9.8,10.6,12.5,14.3,16.3,16.9
1953,19.5,19.4,17.3,14.2,13,10.4,9.6,10.4,13,14.1,15.5,17.6
1954,18.5,19,17,14.6,12.8,10.4,8.5,10.5,12,12.9,15.5,17.2
1955,18.7,17.8,17,14.1,13.3,10,9.7,9.4,11.1,12.6,14.7,16.1
1956,19.6,18.3,17.6,14.2,11,9.7,10.3,9.6,11.3,13.3,16.2,16.5
1957,19.5,19.2,17.3,14.5,12.2,9.8,9.4,11,12.3,12.7,15.9,18.6
1958,19.3,18.5,17.1,15,11.7,9.4,10.9,10.5,11.8,13.3,15.8,18.5
1959,18,19,17.2,14.7,11.7,11,10.4,11.2,12.5,13.5,16.3,17.6
1960,18.4,18.9,17.4,14,11.9,11,10.1,11.4,13.2,15.1,16.8,18.2
1961,19.1,19.1,18.2,15.5,11.8,11.3,10.7,11.2,12.7,12.6,16.6,17
1962,18.8,19.1,17.5,15.6,12.8,11,10.8,11.2,12.4,14.2,16,18.9
1963,19.4,19.4,16.5,13.8,12.4,11.1,9,11.1,14.1,14.7,16.7,18.1
1964,19.2,18.9,18.8,15.2,13.6,9.6,10.2,10.2,11.7,13.8,15.2,17.9
1965,19.1,19.6,18.4,15.6,12.6,9,10.4,11.2,12.7,13.3,15,16.4
1966,19.2,17.9,18.2,15.1,12.2,10.7,10.1,11.2,12.3,14.1,16.2,18.2
1967,18.8,19.3,17.5,14.3,12.8,10,9.2,10.7,12.3,14.1,16.8,18.3
1968,19.2,18.3,17.7,13.8,12.8,9,9.7,10,11.9,13.4,15.5,18.1
1969,19.4,19.7,18.1,14.2,12.3,10.3,10.2,11.4,12.2,14.3,16.2,18.2
1970,19.9,18.5,18.2,15.1,12.7,10.6,9.3,10.4,12.2,13.8,15.2,16.7
1971,18.8,19,18.2,14.9,12.6,10.7,9.7,9.7,11.2,13.8,15.3,17.6
1972,20.2,18.9,17.3,15.8,13,10.9,10.5,10.4,13,14.7,16,18
1973,19.2,18.8,18,15.5,12,11.6,10.9,10.3,11.2,14.7,16,17.3
1974,18.8,19.4,17.1,15.8,12.8,11.2,10.2,10.6,11.8,13.7,16.7,17.9
1975,18.9,19.3,17.1,16,13.2,11.6,10,10.4,13,13.5,15.8,16.6
1976,19.1,19.1,17.6,15.6,13.4,10.4,9.7,10.4,12.8,13.7,14.9,18
1977,19.4,20.1,17.5,16.6,12.2,11.3,10.2,11.2,12.8,14.4,16.5,18.6
1978,19.3,19.6,19,15,12.5,10.7,10.9,10.7,12.2,12.8,16.4,17.4
1979,18.4,20,17.7,16.9,13.6,10.9,9.9,11,11.8,14.5,16.7,18.1
1980,18.8,19.2,18.6,16,13,10.8,11.3,11.9,12.4,14,15.7,18.1
1981,19.1,19.1,17,16,13.2,9.6,9.7,9.7,12.1,13.7,16.3,17.5
1982,19,19.6,17.3,14.1,13,10.8,10.2,11.4,13.5,14.6,16,17.5
1983,19.8,19,18.4,16.7,13.2,10.9,10.6,11.5,12.9,14.9,17.2,19.3
1984,19.6,19.8,17.5,15.9,13.5,11.9,10.7,11.8,13.5,14.6,16.7,17.7
1985,20,19.5,17.9,16.6,13.8,11.8,10.3,12.7,13.7,15.7,17.1,17.6
1986,19.6,19,17.7,16.3,14.7,12.2,11,12.1,13.6,14.4,15.9,18.2
1987,19.2,20.5,18.9,16.4,14.9,11.4,11.4,12.1,13,14.6,16.4,18.2
1988,19.8,19.2,17.6,15,14.5,10.9,10.8,13,13.2,14.2,16.3,16.9
1989,19.2,19,18.3,15.8,13.1,10.7,10.4,11.9,12.6,13.7,16.2,18.4
1990,20,18.8,16.8,15.5,13,10.3,10.4,11.7,12.9,13.7,16,17.6
1991,19.2,19.3,17.9,16.9,13.9,10,10.5,10.4,12.9,14.5,16.3,18.3
1992,19.6,19.7,18.1,16.8,13.4,10.7,10.7,11,12,13.7,15.7,17.5
1993,19.5,19.2,18.8,14.8,12.6,10.8,11.2,11.1,12.8,14.4,17,17.6
1994,19,19.4,17.7,16,12.7,10.5,9.5,10.7,12.7,13.9,16.2,17.4
1995,17.8,19.7,17.4,14,13.1,9.9,8.9,11,12.9,13.2,16.1,17.2
1996,19.7,19.8,16.6,15.8,13.2,11,8.9,10.1,12.1,13.9,14.2,17.7
1997,19.4,18.9,17.1,14.3,13,9.9,10.3,11.5,13.8,15.7,15.9,17.9
1998,18.9,20.4,17.5,16.1,13,10.6,10.2,11.3,11.8,14.5,15.8,18.1
1999,20.5,19.9,18.4,15.6,13.1,11.7,11.3,12.1,11.8,15.1,16.7,20.1
2000,18.7,20,17.5,14.8,11.8,10.8,10.1,12.1,12.1,14,16.2,17.4
2001,18.1,18.9,17.2,14.6,13.5,10.9,10.1,11.2,12.1,15,16.5,18
2002,18.6,19.1,18.2,15.8,12.2,9.9,9.3,11.2,13.1,13.7,15,18.5
2003,19.1,20.4,17.9,16.3,13.1,10.3,9.9,9.7,12.2,14.5,16.5,17.3
2004,16.8,20.4,16.9,16.2,14,11.3,9.6,11.4,12.5,14.8,18.2,19.3
2005,19.7,20,18.3,15.4,13.5,9.9,11.5,10.8,13.2,15,16.7,17
2006,19.9,21,17.5,16.3,12.2,11.5,10.9,11.1,13.5,14.9,16.9,17.9
2007,20.5,20,17.9,16.3,13.6,11.5,10.5,11.7,13.3,14.7,15.9,18.5
2008,19.8,19.9,18.8,15.3,14.3,11.2,10.6,11.7,11.7,14.6,16.8,18.2
2009,19.4,20.1,18.7,17.1,13.6,11.6,11.4,12.1,12.3,14.8,16.7,17.4
