1901,15.9,17.4,13.9,10.7,10.3,7.9,6.8,6.6,9.7,11.4,13.4,15.2
1902,16.9,18.7,14.2,13.5,11.9,7.9,7.1,5.1,9.2,9.9,14,15.8
1903,16.1,17.9,15.3,11.8,9.8,7,6.7,7.4,10.3,9.6,14,15.5
1904,16.2,16.6,14.2,13.1,9.3,5.9,7.8,6.7,9.7,10.2,13.7,14.4
1905,15.9,16.9,14.2,12,9,6.3,5.7,7.1,9.6,11.4,13.3,15.4
1906,17,17.8,14.8,12.7,11.4,4.7,7.2,8.3,8.4,11.1,13.2,14.5
1907,16.8,18,14.5,12,8.1,5.5,5.9,6.1,8,9.2,13.4,16.1
1908,16.2,16.9,14,11.9,9.4,6.9,7,5.7,8.9,10.1,13,15.4
1909,17,17,12.5,12.2,7.7,4.8,6.7,8.6,9.3,9.4,12.1,13.9
1910,17.2,16.6,12.4,11.9,8.6,6.7,5.5,7.7,8.4,9.7,13.6,15.7
1911,17.3,17.1,12.5,11.5,9.9,3.8,5.8,6.3,7.3,9.1,13.9,15.2
1912,17.4,18.2,14.4,11.9,10.2,6.4,5.3,6.8,8.1,10.5,13.4,16.4
1913,16.6,19.4,13.4,13.5,11.3,5.6,8.7,8,9.4,10.5,13.9,14.8
1914,18.2,17.5,13.5,12.5,10.6,8.7,9.1,8.1,9.1,10.7,13.4,14.2
1915,17,18.3,12.5,13.5,11.1,3.6,6.5,8.2,8.6,10.3,13.8,15.7
1916,17.3,17.3,12.4,12.9,10.7,4.6,4.6,7.1,9.8,10.7,13.8,15.2
1917,17.2,17.5,12.9,11.6,7.7,5.6,5.2,5.4,9,9.6,12.7,15.9
1918,17.1,17.2,13.6,12.3,8.9,5.2,5.7,6.4,7.7,9.8,13.7,15
1919,17.1,17,14,12.8,12.7,6.5,7.3,6.4,7.5,9.5,12.6,15.3
1920,17.8,17.5,14.4,13.4,10.7,5.2,5.7,6.6,9.4,10.3,13.6,15.7
1921,16.1,17.4,13.4,11.7,11.1,3.6,5,7.3,9.1,10.3,12.5,16.3
1922,16.6,16.5,13.8,11.4,10.2,5.5,9,8,9.5,8.8,13.9,15.1
1923,17.2,18.1,15.2,12.9,8.8,6.7,5.1,7.6,9.2,8.8,13.3,14.9
1924,15.9,17,14.3,11.2,8.8,6,6,5.7,8.3,9.1,12.2,16.5
1925,17.6,19.6,15.2,12.4,8.9,4.4,4.9,8.7,9.3,9.8,13.9,16
1926,18.3,18.6,14.9,12.1,9,6.8,6,8.5,9.5,10.2,14.2,16.2
1927,17.5,19.1,15.4,12.5,9.8,5.8,7.1,7.9,8.4,9.6,13.7,14.8
1928,16.3,16.2,13.9,13.7,10.1,5.2,7.4,7,8.7,10.9,14.7,16.2
1929,17.9,17.6,13.6,12.9,9.6,5.6,7.5,7.5,9.6,10.3,13.6,16.4
1930,17.5,17.9,13.8,13.2,11.3,8.8,5.9,6.7,9.1,9.6,13.4,15.9
1931,18.4,19,15,12.2,8.6,5,7.2,8.3,8.5,11.9,13.4,16.3
1932,18.7,18.5,15.2,14,9.8,6.7,10.6,7.8,10.8,12.3,16.5,16.2
1933,17.4,18.2,12.4,13.1,12.4,6.3,6.2,9.4,9.7,12,14.1,15.6
1934,18.6,17.4,15.2,11.5,11,7.8,7.7,8.9,9.6,11.3,13.6,15.7
1935,17.1,18.3,15.7,11.5,11.8,7.7,7.8,8.2,8.9,9.9,14.9,16.3
1936,17.8,17.8,14.6,13.1,12.3,9,9.2,7.6,9.4,11.6,14.2,16.3
1937,16.5,19.6,14.3,12.4,9.9,8.3,7.4,9,9.6,10.2,14.1,15.1
1938,17.3,17.9,14.7,12.1,11.4,7.5,7.6,7.6,10.4,11.4,13.8,16.4
1939,18.1,17.7,14.8,11.3,11.1,7.8,7.7,9.8,10.1,12.6,12.8,14.7
1940,17.7,17.2,13.8,13.3,13.2,9.6,10.6,8.2,10.2,10.1,14,18.6
1941,16.4,16.7,12.5,13.9,11.1,6.6,8.1,9.8,7.5,10.7,13.9,15.1
1942,17.9,18,13.5,11.6,9.4,4.7,4.1,8.3,9,10.5,13.7,15.1
1943,17.9,18.7,14.4,10.9,11.5,8.5,9,5,8.8,11.9,13.5,15
1944,16.8,17.7,14,10.8,11,6.9,6.7,9.1,11.2,12.7,13.3,16.1
1945,16.8,17.6,14.5,13.2,9.4,5.5,6.4,9.5,10.5,12.5,14.6,15.5
1946,16.7,18.3,13.5,12.6,11.4,6.5,6.4,9,10.6,11.4,15.1,14.9
1947,17.3,19.3,13.3,12.2,11.1,8.4,6.6,7.3,9.1,10.6,14.2,14.9
1948,17.7,17.6,13.1,12.4,10.5,8.8,7.6,6.2,10.4,10.6,14.2,17.9
1949,17.7,18.4,14.6,12.6,10.5,7.9,7.5,8.1,9.7,9.2,15.8,16.5
1950,17,19,16.1,14,12.7,7.2,6.8,7.8,9.3,10.7,14,16.7
1951,19.4,17.1,13.2,11.7,12.6,9,9.8,9.5,11,10.9,15.4,16.1
1952,18.8,20.1,16.3,11.5,12.9,5.6,8.9,9.4,9.5,11.3,15.7,16.7
1953,18.9,19.7,17.3,12.3,12.1,7.6,4.9,11.2,11.1,10.3,14.4,16.3
1954,17.7,18.8,15.3,12.7,9.6,7,6.5,9.5,9.4,10.1,14.2,16
1955,19,18.4,13.6,11.7,8.9,5.5,4.2,8.2,8.8,8.4,16.4,17
1956,16.5,16.7,14.1,10,6.6,6.7,5.5,7.6,9.2,11.4,14.5,14.9
1957,19.3,16.2,14.9,12.2,14.6,6.7,6.2,7.4,7.8,11.3,14.3,16.1
1958,17.7,17.9,13.6,12.3,10.4,7.8,10.8,6.8,11.1,11.2,14.5,15.2
1959,16.5,18.4,14.3,13.2,9.6,6.2,9.8,7.2,8.7,11.7,14.3,15.5
1960,17.5,18.9,14.5,11.1,8.5,6.5,7.7,8.3,9.3,12.2,14.5,16
1961,17.7,18.3,13.5,11.7,11.7,7.2,6.8,10,9.2,13.3,15.8,16.1
1962,16.4,16.3,15.2,11.3,8.5,6.4,5.3,7.2,9,9.4,15.1,14.1
1963,17.5,19.2,15.3,12.7,10.8,7.2,7.5,7.4,11.5,10.2,13.5,14.9
1964,16.5,16.8,14.2,12.5,10.5,2.8,4.7,6.5,9,9.4,11.4,15
1965,18.3,19,11.7,11.7,10.3,10.5,7.2,8.1,9.7,12.1,15.3,16.7
1966,16.6,15.7,13.2,13,10.1,7.6,8.4,5.1,7.2,9.3,15.3,15.3
1967,17,17.8,12.5,11.5,13.7,4.5,8.1,9.5,11.4,12.9,11.3,17
1968,17.4,18.2,14.1,8.6,6.7,7.4,9.7,9.4,8.6,12.3,17.5,16.2
1969,16.3,18.6,14.3,13.2,12.3,7.7,7.6,6.3,9.4,8.9,14.7,16.5
1970,17,19,15.7,14.2,10.7,6.8,6.8,8,9.9,10.1,12.2,15.9
1971,18.5,17.7,13.4,10.7,8.9,4,8.6,8.3,12.4,12.4,15.1,16.8
1972,17,16.8,14,12.2,14,11.4,7.6,9.6,11.9,10.6,11.7,16.5
1973,17.9,18.8,15.5,14.3,10.6,9.1,8.6,6.9,8.3,11.6,11.8,16.5
1974,18.4,18.7,14.4,12.3,13.4,5,9.1,7.6,9.2,10.6,13.1,15.3
1975,16.4,17.7,14.9,13.2,12.7,8.2,7.4,9.3,10.4,10.8,14,16.4
1976,18.3,17.7,13.2,11.5,11,6,6.6,8.3,9.1,11.3,14.4,15.9
1977,19.1,19.6,15.9,13.1,9.7,7.9,10.1,8.2,12,14.3,16.2,17.9
1978,18.7,17.5,15.6,10.8,9.1,6.5,9.2,8.7,11,13.3,15.2,17
1979,17.5,19.5,13.6,12.6,8.9,4.4,8.5,10.5,8.8,12.3,14.7,16
1980,17.3,18.2,17.6,16.6,14.2,7.5,5.2,8.1,7.7,12,15.4,17.2
1981,17.6,19.7,13.1,13.6,15.1,5.3,7.8,9.4,9.9,10.2,15.5,15.8
1982,16,18,15.1,14.3,11.2,8.6,8.6,9.4,12.5,10.2,14.3,16.4
1983,19.7,18.6,13,12.3,11.9,4.8,6.2,9,8,12.2,16.2,16.7
1984,19.4,20.5,15.3,12.8,12.1,7,7.2,6.3,10.3,12.7,14.6,13.4
1985,17.7,19,14.6,13.2,11,8.2,8.8,9.1,12,12.6,16.8,16.9
1986,18.7,18.6,14.1,16,11.7,10.4,8.1,9.8,11.4,11.6,16,16
1987,17.8,19.2,15.8,14.6,9.2,5.4,10.6,9.1,8.3,11.6,15.9,16
1988,18,17.3,16.8,10.7,7.3,4.2,6.4,8.9,9.2,10.4,14.7,17.3
1989,18.8,18.1,15,14.3,10.3,6.5,5.5,9.9,8.8,10.8,15.4,18.6
1990,19.4,19.8,15.3,15.5,11.4,5.3,5.8,9.1,8.8,13.6,16.7,15.1
1991,17.4,18.4,16,13.8,13.5,7.4,6.9,10,11.9,11.7,14.9,18
1992,17.4,19.3,15.8,13.8,10.9,9.5,5.1,8.1,10,11.4,14.3,16.7
1993,19,17.9,15.9,14.8,11.8,6.5,5.3,7.5,9.7,13.2,15.2,17.1
1994,17.2,18,14.7,13.2,14.1,8.7,7.8,8.3,11.9,12.7,15.4,19
1995,18.4,17.4,14.3,12.4,10.5,6.3,8.6,9.1,9.7,10.7,16.8,17.1
1996,17.7,18.1,15.5,14.7,9.9,4.2,3.5,8.6,9,12.6,16.2,18.1
1997,20.2,18.8,13.5,12.3,11.1,7.5,9.1,10.4,10.7,12.4,17,17.2
1998,17.4,18.6,13.9,14.6,11.9,6.8,9.5,9,9.3,12.3,15.4,15.8
1999,17.1,17.6,17.3,12,9.2,6.3,7.5,8.4,11.1,11.7,14.3,16.2
2000,18.7,19.1,14.2,15,12.3,9.9,5.5,8.5,10.4,13.5,14.7,16.4
2001,18.5,20.2,17.3,12.9,11.7,8.6,9.3,11.8,11.9,14.8,14.1,15.3
2002,17.8,17.7,17.9,13.9,13.5,6.5,7.6,9.2,9.1,14.6,16.9,16.6
2003,18,19,15.6,12.3,12.2,9.3,6.8,7,9.4,11.9,15.2,15.5
2004,17.5,17.3,15,15.6,10.4,8.8,7.5,9.6,10.9,10.7,14.6,16.2
2005,17.9,18.6,15.6,12.9,12.9,12.4,8.3,10.1,9.5,11,15.4,14.8
2006,18,18.5,15.1,13,9.6,8.5,10.5,7.7,8.5,13.3,15.1,18.4
2007,18.9,19.7,16.9,15.6,8.4,5.9,3.7,7.7,13,14.2,13.8,13.4
2008,18.5,18.9,15.3,11.2,11.7,5.9,11.2,7.5,9.2,12.2,16.8,16.4
2009,16.9,19,15.6,12.7,11.8,5.4,3.8,9.7,10.4,11.2,17.7,17.7
