1901,15.4,15.8,12.6,9.9,5.7,4,1.1,3,6.5,9.4,10.6,13.2
1902,15.7,15.1,13.4,10.3,5.1,3.4,2,2.6,6.9,9.1,10.7,12
1903,13.6,15.5,13.3,10,5.4,2.6,1.5,2.7,7,11.2,13.9,15.5
1904,16.6,17.9,13.5,10.8,6.8,3.1,2.1,2.8,7.3,9.6,10.7,12.7
1905,14.3,17.5,15,10,6.6,3.4,1.8,4,6.8,9,11.3,13.6
1906,14.5,14.8,12.6,9.7,5.7,3.3,1.6,3.6,6.7,10.2,11.4,14.3
1907,17.4,17.4,14,10.9,6.6,3,1.7,4,6.1,8.6,12.5,15.5
1908,16.7,17.2,14.4,9.9,6.8,3.6,1.8,4,7.6,10.3,11.6,13.4
1909,13.9,18.3,14.8,10,7.2,3.9,2.5,4.6,7.8,10.2,12.6,15.9
1910,15.9,17.9,14.7,10.1,7.4,4.3,2,3.8,6.5,10.9,12.5,16
1911,15.7,18.3,15.9,12.3,7.6,3.5,2.9,4.8,6.6,9,9.7,11.7
1912,14.3,14.2,12.9,9.9,5,2.3,1.9,3.6,6.3,8.5,10.1,13.8
1913,15.1,15.4,13.5,9.5,4.3,2.3,2.2,4.5,7.4,10.2,12.1,13.8
1914,16.6,16.4,14.4,10.6,5.9,2.9,2.4,4,6.9,9.1,9.8,11.3
1915,14.8,14,12.9,9.3,6.4,2.9,3.2,5.2,8.1,10.8,11.1,13.7
1916,15.8,17.6,16.5,11.6,7.1,5.5,3.4,4.1,7.2,10.7,13.1,16.1
1917,18,15.9,14.5,11.4,7.8,4.1,3.2,4.3,7.8,10.3,13.3,14.4
1918,16.4,17.9,15.2,10.6,6,2.7,0.5,3.7,6.7,9.8,10.7,13.1
1919,13.3,16.5,13.1,9.4,5.5,2.8,2.1,4.2,6.6,9.2,9.8,12.8
1920,14.1,17.3,13.5,11,4.6,2.7,3,3.5,7.1,9.9,9.9,13.5
1921,16,16.7,12.8,9.6,6.6,4.1,3,3.8,7.4,10.1,11.1,13.3
1922,17.7,18.1,12.3,10.2,6.7,3.9,3,4.9,8.1,10.9,11.8,14.2
1923,17.4,14.5,12.4,9.4,6.8,2.9,1.9,3.7,7.3,10.5,12.7,14.7
1924,16.4,18,15.9,13.3,7,4.2,2.6,4.9,8.2,11,13.2,14.9
1925,16.9,16.4,12.9,10.2,6.9,3.4,3.9,5,5.6,10.1,9.8,13.6
1926,16,14.3,12.3,10.9,6.1,3.9,3.3,4.4,6.5,9.5,11.3,14.4
1927,16.4,17.3,13.2,8.8,6.1,2.7,3.1,4.2,8,9.1,10.3,13.8
1928,17,18.7,16.2,12.2,7.5,4.3,4,5.4,6.6,10.1,12.5,14.7
1929,16.4,15.7,13.9,11.2,6.1,4.7,2.7,4.7,6.5,10.5,11.5,12.9
1930,14.8,16.4,13,10.6,6.4,3.2,2,4.8,6.4,8.7,10.4,13.9
1931,13.7,15.1,12.8,10,7.1,3.7,1.7,3.3,5.4,9.1,11.9,13.3
1932,13.7,15.7,14.3,11.3,6.7,3.1,2.4,3.8,7.6,10.7,11.7,14.6
1933,16.3,16.6,13.7,9.2,5.3,2.9,3,4.4,7.9,9.7,11.9,15.4
1934,14.7,17.3,13.2,11.1,6.6,3.4,2.1,4.8,7,10.1,13.8,17.9
1935,17.2,20.1,16.1,11.9,6.4,3.2,2.7,4,5.6,9.8,11.4,16.3
1936,17.1,17.3,12.3,11.6,6.1,3.9,2.3,4.4,6,10.1,11.6,13.9
1937,14.8,14,12.9,9.6,5.8,2.7,1.9,4.9,7,9.8,11.7,16.1
1938,16.7,19.4,15.4,13.5,8.3,3.8,1.9,4.9,7.5,9.8,12.7,13.2
1939,12.8,14.8,14.3,10.7,7.1,4.4,1.1,3.6,6.7,10.1,12.1,15.4
1940,15.9,13.8,12.1,9.5,5.7,3.8,3.1,5.3,7.3,9.7,11.8,14.7
1941,16.5,16,15,9.4,6.2,2.4,2.7,4.2,7.1,9.8,10.9,13.4
1942,14.5,15.9,13.3,9.4,6.5,4.5,2.9,4.6,7.1,10.4,11.5,12.7
1943,15.8,15.2,12.3,10.4,5.4,3.3,2,3.5,6.6,10.1,12.6,15.2
1944,17.1,16.6,14.7,10.7,6.5,2.9,2.8,4,6.3,9.4,11.2,13
1945,16.5,17.4,12.2,9.3,5.5,2.7,1.7,4.9,6.8,8.3,10.9,12
1946,14.2,15.5,14.2,11.2,7.2,4,3.1,3.4,6.5,8.2,11,11.9
1947,14.5,16.2,14.6,10.7,6.3,3.7,2.8,4.9,6.8,9.5,12.4,15.1
1948,16.7,16.3,13.3,10.3,6.7,3.5,3.5,5.1,7.1,9.1,11.8,13.4
1949,15.7,15.7,12.7,8.8,6.6,4,3.1,4.1,6.2,10.2,12.2,13.1
1950,15.5,14.9,12.2,9.9,7.9,4,3.1,4,7.3,11.4,12.5,14.1
1951,16.5,16.4,14.6,11.4,5.9,3.2,3.1,4.2,6.8,10,11.3,13
1952,14,16.2,12.4,10.6,5.9,2.9,2.4,6.1,7.9,10.3,12.4,15.5
1953,15.6,16,12.9,10.1,6.7,3.7,2.7,4.9,6.5,9.7,12,13.6
1954,15.4,16.4,14.7,10.1,7.5,4.4,2.5,4.4,6.9,9.7,12.8,15
1955,15.7,16.5,14.2,11.5,7.7,3.6,2.9,4.3,7.2,11.1,11.5,15.2
1956,18.7,17.5,13.9,12.4,8.1,5.3,2.9,4.6,8.1,11.4,12,14.5
1957,15.3,17.2,15.1,11.3,6.5,3.5,2.4,5.2,7.8,8.9,11.3,12.3
1958,14.7,17.8,14.4,9.3,6.2,3.8,1.8,4.3,7.5,11.5,12.6,14.8
1959,17.4,16.7,14.6,11.3,4.9,3.8,3,4.6,7.4,9.3,11.4,15.7
1960,16.5,16.9,13.9,11.5,7.9,4.1,3.8,4.7,7.8,11.2,12.6,13.9
1961,17.1,16.5,13.3,10.7,6.8,3.6,2.3,4.8,7.1,10.9,12,15.8
1962,17.3,17.1,14.8,11,7.8,4.8,3.3,4.8,7.3,11,12.3,15.2
1963,16.8,17.1,13.3,9.8,6.1,3.5,3.2,3.9,7.1,10.1,10.9,12.7
1964,14.1,17.4,13,10.1,6,3.4,2.7,3.4,6.8,10,11.4,15.4
1965,17.8,15.1,13.6,10.1,5.9,3.7,1.8,4.1,6.7,8.8,11.3,13.6
1966,14.7,18,15,10.7,6.8,4.1,2.3,4.7,7.6,10.6,12.1,14
1967,16.2,15.4,14.3,10.5,6.3,4.1,3.2,5.7,7.3,10.5,10.3,14.2
1968,15.1,15.7,15.5,10.5,7.4,3.5,1.7,4.8,6.1,8.3,10.8,14.7
1969,15.6,16.6,13.1,9.9,6.4,2.7,2.6,4.7,7.3,9.2,13.5,15.9
1970,17.3,17.5,15.3,11.1,7.1,4.6,3.1,5.4,6.6,9.6,12.6,14.6
1971,17.9,19.3,15.4,12.4,8.4,4.7,3.6,5.2,7,10.2,12.9,15.8
1972,15.8,17.1,14.6,10.8,6.3,3.2,2.8,4.3,7.3,9.5,12.2,13.5
1973,15.6,16.9,14.7,10.5,5.8,4,3.6,4.2,7.9,9.5,11.4,15
1974,15.9,18.3,14,12,7.6,4,2.7,4.9,8.5,10.5,13.8,16.4
1975,19,17.4,15.5,10.9,7,3.8,2.6,4.6,7.4,10.4,12,13
1976,15.3,15.6,14.5,11.8,6.5,3.3,2.4,5,8,9.7,12.4,15.2
1977,15,17,14.6,11,5.9,3.7,3.4,5.2,6.3,10.1,11.2,13.8
1978,16.3,17.7,14.3,12.7,8.1,3.8,3.8,5,7.9,10.3,12.2,14.5
1979,14.8,16,14.7,11,6.3,4.8,3.4,4.1,7.3,10.3,12.8,14.4
1980,16.4,17.1,14,11,7.3,3.9,2.7,4.6,6.5,10.6,10.2,15.1
1981,16.7,16.6,14.8,11.7,7.4,4.3,2.7,4.3,6.1,10.1,13.2,15.3
1982,15.3,17.3,14.4,10.9,6.9,3.8,2.7,4.7,7,9.1,11,12.9
1983,14.2,15.2,12,10.1,5.9,3.3,2.4,4.9,6.7,10.8,12.5,13.5
1984,15.1,17.7,15.6,10.9,6.1,4.6,3.5,5.9,8.1,9.9,12.6,14.9
1985,16.8,17.5,14.6,11.8,7.6,4.7,3.4,5,8.3,10.5,12.8,16.1
1986,17.8,17.7,14.7,11.7,7,3.3,2.9,5.2,7.5,11.3,12.6,15.6
1987,17.4,16.7,14.5,10.7,7.4,4.1,3.8,5.4,6.8,10.3,13.7,14.3
1988,15.9,17.4,13.5,10.4,5.7,4.6,3.5,4.6,7.8,9.7,12.8,15.5
1989,18.9,18.2,14.4,11,7,4.7,3.3,6.1,10.2,11.6,13.3,14.5
1990,15.8,18.3,14.7,11,6.7,4.1,3.2,5.4,7,9.9,12.9,13.9
1991,15.3,15.8,14.9,9.7,6.7,3.2,2.3,4.8,7.3,9.4,10.7,13.6
1992,16.3,16.2,11.6,9,5.3,2.5,2.3,2.7,6.4,9.8,13,14.8
1993,14.9,16.1,13.4,10.2,7.3,4.2,3.4,4.3,6.6,10,11.5,14
1994,16.1,17.8,13.9,10.9,6.5,2.9,2.4,3,5.6,8.9,10.4,13.9
1995,15.8,17.9,13.3,11.9,7.3,3.5,0.4,4.1,6.1,9.5,11.3,15
1996,17.9,17.8,14.1,10.9,6.8,3.3,2.2,3.7,8.6,10.3,10.9,14.3
1997,15.7,17,13.8,10.2,7.6,4.3,2.9,4.4,7.2,9.7,10.5,13.2
1998,16,18.9,14.3,10.1,7.3,4.3,3.9,4.3,7.6,10.2,13.2,14.8
1999,18.6,19.8,16.1,11.4,8.9,4.7,3.6,5.1,8.4,11.1,13.2,14.9
2000,16.7,17.3,14.2,11,7.5,4.8,4.5,4.8,7.7,10.5,11.8,15.5
2001,15.1,16.4,15,11.3,7.1,4.3,2.8,5,8.5,11.5,12.3,15.1
2002,17.4,17.9,14.2,11.2,6.4,4.3,2.9,4.7,6.9,9.1,11.5,13.6
2003,15.5,15.8,15.3,10.8,7,5.2,2.5,5.1,6.9,9.9,10.9,14.1
2004,17.1,15.3,12.8,9.5,7.1,4.2,2.4,3.3,6.1,9.4,12.7,12.2
2005,16.6,18.2,14.3,10.3,7.5,3.7,4,5.8,8.2,10,12.7,17.3
2006,15.3,16.8,12.9,12.3,7.1,3,3.3,4.7,8.2,9.9,11.6,13
2007,16.7,17.4,15.1,10.6,8.6,3.4,2.8,5.1,7.7,9.4,11.7,15.4
2008,17.5,18.1,15,11.2,6.4,5,3.4,4.3,8,9.4,11.7,14.5
2009,16.9,16.6,14,11.6,5.6,3.6,2.8,6.4,7.3,8.8,11.6,14.1
