1901,15.2,18.2,11.6,8,6.9,3.2,2.9,4.1,8.4,10.1,14.8,16.2
1902,15.5,14.8,12.2,8.7,6.9,4.2,3.1,3.3,7.6,10.8,14.2,15.1
1903,15.6,14.4,12.8,8.9,6.3,4.5,3.3,3.7,7,10.5,12.1,15.5
1904,16.5,14.7,10.7,9.8,7.6,5.1,4.4,4,5.9,10.5,11.8,15.8
1905,18,14,12,9.9,7.5,5.1,3.6,2,5.5,7.2,10.4,14.4
1906,18.3,17.2,13,9.3,7.4,5,3.8,4.4,7.5,10.4,11.7,15.7
1907,16.6,16,11.1,7.7,6.2,4.1,3.2,4.9,7.8,9.8,13.7,15.4
1908,20.9,17,12.4,8.5,6.9,2.6,3.1,4,5.6,9.8,13.1,17
1909,15.1,14.7,11.4,7.9,7,5.6,4.3,7.1,8.9,12.7,13.2,12.1
1910,18.2,16.9,13.4,10.1,7.5,6,4.8,5.8,7.9,9.1,13.2,12.8
1911,16.6,15.9,13.8,8.2,8.5,3.9,3.6,7.1,8.3,9.9,14.4,14.2
1912,16.1,18.6,15.3,8.2,5.5,5.9,3.5,5.9,8.5,10.2,13.3,14.5
1913,16,16.7,15.2,11,6.9,2.8,4.2,5.5,7.5,11.5,12.3,16
1914,16.5,17.6,15.9,10.5,7.6,4.4,2.8,6.1,6.8,12,15.7,17
1915,16.2,18,12.1,9.5,6.4,6.8,5.3,5.6,8.5,9.6,10.9,14.5
1916,17.5,15.9,11.9,8.4,6.4,5.6,5,5,9.1,10.5,10.9,14.3
1917,17.2,15.3,13.2,7.6,6.8,4.7,5.3,5.2,7.7,11.2,11.6,16.1
1918,18,15.9,12.4,10,8.6,5.4,2.8,5.8,6.8,9.8,11.3,13.5
1919,15.7,18.7,11.3,11.6,8,5.5,2.5,4.5,8.2,10.9,13.9,16.7
1920,16.4,16.7,11.7,9.2,5.4,6.3,3,5.1,8.2,11.6,13.5,15.2
1921,17.9,18.8,13.5,10,10.2,6.8,4.8,5.9,9.1,9.9,14.3,15.1
1922,14.2,17.4,11.6,11.2,7.9,4.7,3.7,4.2,7.3,10.3,12.3,14.8
1923,16,16.1,12.3,11,9.2,6.8,5.4,5,7.2,9.8,9.9,15.5
1924,14.6,14.8,12.7,7.5,4.8,4.3,2.4,4.4,8.2,10.1,11.7,13.2
1925,16,16.1,12.2,9.7,8.4,5.8,4.5,4.2,6.1,9.6,12.2,13.8
1926,14,16.3,14.4,10.7,6.8,5,4.1,5.3,8.6,9.9,11.6,14.1
1927,16.9,14.2,12.6,8.1,6,3.5,4,4.5,6.3,10.8,13,14.4
1928,16.3,16.6,14,10.9,5.6,3.8,3.5,4.1,9.6,9.8,11.7,14.9
1929,16.6,17,13.2,9.9,8.7,3.7,2.2,4.4,5.5,9,12.3,12.9
1930,15.8,18.6,13.3,8.7,6.2,2.8,5.2,4.5,6.5,11.4,11.9,16.1
1931,15.4,15.1,12.4,8.6,7.7,5.9,4.8,5.4,7.8,9.3,12.2,15.4
1932,19,14.8,12.9,10.5,8,4.3,3.8,5.7,8.4,8.5,12.3,13.1
1933,15.5,15.4,13.1,9.5,7.1,5.7,4.2,3.9,7.7,10.4,13.1,14.6
1934,17.8,16.8,17.2,10.3,5.9,4,4.3,5.4,8.5,10.1,12.8,13.8
1935,15.6,15.3,13.9,10.2,6.1,4.7,4,6.3,8.1,11.1,12.5,14.3
1936,16.7,16.6,14,9,6.7,4.7,4.3,6,6.3,10,11.3,15.9
1937,14.7,16.9,14.5,7.5,7.3,3.7,2.2,5.2,6.4,10.3,13.1,14
1938,16.3,16,14.3,10.6,8,4.5,3.7,4.2,6.5,9.6,13.2,13.9
1939,20,18.2,14.9,11.7,8.3,6.4,3.1,5,5.9,9.2,11.7,11.5
1940,16.2,13.6,15.3,8.8,5.8,2.9,4,4.6,6.7,11.3,11.2,15.9
1941,15.3,15.5,12.8,11.7,6.4,5.7,5.8,4.2,7.1,8.4,12.7,15.2
1942,16.5,16.8,13.5,10,9.8,6.3,4.7,6.1,6.8,9.8,12.1,17
1943,16.2,16.1,12.9,9.2,5.7,4.9,3.9,3.7,7.2,9,11.8,13.4
1944,16,15.2,13.5,8.6,6.6,3.1,3.1,3.3,7.6,9.9,14.1,14.1
1945,15.8,14.2,10.5,8.2,6.8,6.3,3,6.4,6.8,9.8,12.2,16.4
1946,17.3,15.7,12.2,8.1,7.7,4.2,5.7,5.4,6,6.7,12.3,14.7
1947,16.2,18.2,14.1,9.3,7.8,5.2,4.1,4.2,7.1,9.3,11.3,14.3
1948,15,16.6,10.5,9.6,6.3,5.2,3.4,4.8,7.2,8.1,11.8,13.7
1949,15.9,13.2,13.8,7.2,6.3,2.8,3.8,4.3,5.9,10.2,12.1,13.3
1950,14.8,16,13.6,9,7.9,4.3,4.7,4.4,7.2,9.3,13.4,16
1951,18.3,15.6,14.7,8.7,7.9,6.5,3.8,4.4,7.8,9.2,10.6,14.8
1952,16.3,13.9,14.4,9.2,7.2,5.4,2.6,4.5,7.1,9,10.9,13.6
1953,16.1,15.5,14.3,11,6,5.5,3.8,4.3,6.4,8.7,11.1,13.6
1954,16.8,13.4,10.9,11.2,7.2,4.7,3.7,5.1,6.1,10.4,12.3,15.4
1955,16.8,18.1,15.7,10,6.5,5.7,4.6,5.9,8.2,10.1,11,12.6
1956,15.3,18.7,16.5,11,7.7,4.5,4.7,3.9,6.2,8.3,10.1,12
1957,14.6,15.4,11.7,8.6,5.3,7.2,3.1,4.5,5.9,9.3,11.4,15.2
1958,15.2,15.7,13.2,9.8,10,2.6,3.8,6.1,4.8,9.2,13.4,12.3
1959,18.5,16.2,14.5,9.3,5.1,4.4,2.6,6.6,6.8,10,14.8,12.4
1960,18.8,14.9,14.6,10.1,6.3,3.4,4.6,3.4,7,9,9.8,16.4
1961,18.2,16.1,13.8,12.5,6,5.4,4.5,4.4,7.6,10.6,13.1,15.1
1962,17.6,14.6,13.9,9.1,5.7,6.5,4.2,5.9,6.5,9.3,12.4,14.5
1963,16.1,15.4,14.5,8.5,9.6,5.7,4.1,4.4,7.1,10.6,11.8,15.5
1964,14.7,14.5,12.2,10.4,6.2,4.2,5.1,5.5,8.2,8.6,12.7,11.1
1965,13.9,16.4,12.4,7.3,7.1,3.5,3.2,5.8,8.4,12,11.5,17.3
1966,17.9,14.6,13.3,8.6,6.3,3.5,3.3,3.8,7.6,9.7,13.5,14.5
1967,15.7,16.9,12.2,10.8,6.8,5.7,4.3,4.1,7.1,10.7,11.7,13.1
1968,18.4,18.4,15.9,12.3,7.8,5.9,3,4.2,5.9,9.5,11,13.5
1969,17.7,17.5,14,9.9,6.2,4,5,4.6,5.6,9.8,11.8,12.8
1970,15.3,16.8,12.9,11.8,6,4.7,3.6,4.4,6.3,8.9,12.1,14.1
1971,15.7,16.5,16.7,13,7,4.9,3.2,4,6.4,8.7,11.9,14
1972,15.8,16.2,12.5,9.6,7.1,3.3,4.1,7,7.4,9.9,12.1,15.4
1973,19.4,17.9,13.1,11.6,8.1,4.7,5.3,6.2,8.8,10.9,12.5,15.9
1974,18.9,16.1,17.1,12.6,8.9,4.4,5.2,6,6.3,10.1,11,13.1
1975,13.6,16.7,13.2,9.3,9.2,4,6.5,5.6,9.6,10.4,13.8,16.9
1976,15.1,18.2,14,9.9,4.3,4.3,2.3,4.8,6.9,9.4,11.8,14.1
1977,16.4,17.6,13.6,7.6,7.3,5.7,2.6,6.4,6,11,12.7,15.1
1978,15.7,15.1,15.2,9.6,9,6.1,4.7,5.2,7.1,9.1,12.3,13.2
1979,19.2,17.4,14,9.6,7.5,6.3,4,4.9,9,9.6,13.6,14.8
1980,14.8,15.8,13,12.8,8.9,5.4,4.7,4.9,7.1,10.3,13.4,16
1981,19.6,17.5,12.1,11.2,8.6,6.4,4.9,5.6,8.5,9.6,12.7,14.9
1982,18.2,16.4,14.8,10.5,7.7,2.5,1.5,5.8,7.3,9.1,14.2,16.2
1983,14.9,18.3,16.9,10,8.5,5.1,3.8,7.1,8.1,10.3,13.2,16.1
1984,15.7,15,12.1,9.9,6.9,3.5,4.3,6.5,6.1,9.6,13.3,14.3
1985,15.5,15.8,15.8,11.1,7.1,5.3,3.7,6.8,6.3,11.2,13.3,14.3
1986,14.3,15,14.7,10.2,8.2,5.4,5,5.4,7.3,8.7,11.9,13.9
1987,13.9,16,11.6,10.7,8.8,6.5,4.2,6.7,7.7,8.9,13.5,15.4
1988,17.7,14.7,14.8,11.9,10.8,6.8,6.2,5.5,8.3,10.4,12.3,17
1989,15.8,15.7,16,11.7,9.1,4.9,4,4,6.9,8.6,13.6,15.1
1990,17,15.7,14.9,11.4,8.3,5.4,5.9,5,6.9,10,13.9,15.7
1991,17.5,15.3,12.9,10,6.6,8.7,5,5.5,6.9,10.4,11.9,14.2
1992,14.3,16.2,15.6,10.9,7.7,6,4.4,4.5,6.4,11,10.9,15.8
1993,16.9,15.5,13.8,10.6,7.6,5.8,5.6,6.6,8.7,9.9,12.5,14.6
1994,14.5,16.9,12,9.5,7.3,6.5,3.1,3.7,6.3,10.2,12.7,16.6
1995,17.8,16.4,12.3,8.4,8.5,6.3,4.4,5.4,7.1,9.7,13.2,13.9
1996,16.1,14.9,13.6,9.1,6.5,6.4,5.7,5.7,6.7,10,11,14.2
1997,17.2,20.4,11.6,8.8,8.3,4.6,2.4,4.5,7.7,10.4,14.4,15.7
1998,17,15.3,13.5,9.2,7.5,4.1,4.5,6.4,9.6,10.2,13,16.1
1999,19.7,17.6,14.2,7.7,8.1,5.2,5.8,5.4,9.1,11.6,12,14.9
2000,16.2,20,15.6,11,6.3,4.7,4.5,4.5,8.6,9.5,15.5,15.7
2001,20.6,19.4,12.6,9.5,7.2,5.8,4.2,5.6,9.2,8.3,11.8,13.5
2002,15.4,14.9,13.4,11.2,7.5,5.7,4.1,4.4,7.8,9.2,13.6,15.8
2003,17.5,17.4,12.7,10.8,8.3,6.5,4,5,6.9,8.4,13.4,17.2
2004,14.7,17.6,12.2,10.4,5.5,6.1,4.7,5.9,7.4,10.6,13.2,15.5
2005,16.8,14.3,12.8,12.1,6.9,5.9,5.2,5.8,7.6,11,13.8,15.2
2006,20.5,16,15.2,8.3,5.7,2.5,4.5,4.7,8.4,9.8,13.5,15.1
2007,18.4,18.5,15.1,12.1,10.3,2.9,3.6,5.7,7.8,10.6,15.7,16.9
2008,18.8,15.5,15.2,9.4,6.7,6.5,4.4,4.6,7.5,11.1,13.5,14.8
2009,17.9,17.7,14,10.1,7.9,6.6,5,6.8,8.1,10.9,17.1,16
