1901,16.7,16.3,15,13,7.5,4.6,4,6.2,9.6,12.3,15.4,15
1902,16.6,14.9,15,12.6,6.8,3.7,1.7,5.3,7.6,11.4,13,16.3
1903,17.3,15.8,13.3,11.5,8.1,4.2,4.4,4.4,7.5,11.6,13.8,15.2
1904,17.5,16.3,13.7,11.6,5.6,4.1,1.3,5.6,8.6,11.7,13.9,16.9
1905,17.6,15.8,15.5,10.8,5.4,2.2,2.1,3.5,7.1,10,12.4,14.1
1906,16.3,15.4,11.5,9.1,3.6,2.4,2.3,5.4,8.5,11.6,13.6,13.8
1907,15,15,13,10.5,5.9,3.1,3.8,4.7,7.5,10,13.4,13.5
1908,16.2,16.8,13.7,8.8,6.3,4.4,3.3,4.4,7.3,9.8,11,13.8
1909,14.9,15.2,12.4,9.3,4.6,4.5,2.9,3.3,6.8,10.9,12.3,12.2
1910,13,15.1,14,10.6,6.3,3.4,4,4.1,8.6,12.2,14.1,16.8
1911,14.5,14.7,13.4,9.1,6,5.9,4.5,3.9,8,12,13.3,16
1912,17.8,14.3,14.8,12.3,5.8,4.9,6,4.9,8.2,12.6,11.2,14.9
1913,17.5,14,13.6,11.1,4.8,3.2,2.6,4.6,9.4,10.5,12.9,15.3
1914,15.1,15.1,14.6,11.3,6.6,2.7,3.5,4.9,7.5,11.4,11.9,15.3
1915,16,15.1,15.1,8.2,4.8,3.9,4.4,4.8,9.6,12.7,13.8,15
1916,18,16.4,13.6,11.5,7.3,4.8,4.3,6.6,8.9,12.4,13.7,15.5
1917,16.1,16.7,14.1,12.9,7.7,4.6,5.3,5.2,8.8,13.7,15.8,14.7
1918,16.3,17,14,10.2,5.3,6,3.6,4.3,7.9,13,11.9,17.1
1919,17.7,16.8,14.3,10.1,6.6,5.5,4.9,6.9,8.9,12.1,12.8,16.4
1920,17.3,16.3,12.7,12.5,6.6,5.1,4.1,6.9,8.4,11.6,13.3,15.1
1921,16,14.1,13.8,11.4,4.4,4.6,5,4.6,8.6,12.3,13.5,14.6
1922,14.3,14.2,12.7,10.9,7.4,4.3,4.6,5.2,8.4,11.4,13.5,16.4
1923,15.6,14.4,12.2,9.4,7.6,3.5,2.1,3.7,7.9,10.9,12.2,13.8
1924,17.2,14.9,13.2,10.7,6.9,5.2,3.9,6.1,9,12.8,13.2,14.1
1925,14.6,14.3,13.2,10.1,7,4.5,4.2,4.9,7.7,10.9,12,14.9
1926,14.5,15.3,11.3,9.2,6.8,5,3.2,5.4,7.5,8.9,12.2,14.9
1927,14.7,14.7,13.6,11,6.7,4.6,4,5,6.7,12.4,12.9,15.7
1928,14.6,14.7,12.4,10.4,8,3.9,3.8,6.9,10.2,12.6,12.6,13.8
1929,16.3,15.9,14.1,11.4,7.2,5.5,4.7,5.4,8,11.7,12.4,12.6
1930,15.1,16.6,12.5,11.9,6.9,3.5,2.3,5.2,8.9,10.9,15.1,14.6
1931,17.6,15.5,13.5,11,7.7,5.2,3.9,6.5,7.8,11.2,13.6,14.7
1932,15.6,15.7,13.2,10.1,7.8,4.3,3.6,5.4,8.1,12.1,13.1,13.8
1933,15.8,14.4,13.9,10.9,7.1,4.9,4.8,5.7,9.2,11,12.4,14.8
1934,16,14.5,13,11.6,6.7,3.9,4.6,6.4,9.5,13.1,13.2,14.9
1935,15.8,14.4,13.1,10.2,7.5,5.5,3.9,6.5,8.3,11.5,13.6,14.1
1936,16.1,16.5,13.9,11.9,5.3,6,6,5.4,8.9,11.5,14.8,15.1
1937,16.6,13.6,12.5,11.2,6,4.3,3.8,4.2,9.4,12.6,14,16.4
1938,15.3,15.4,13.4,12,7.9,5.3,4.8,5.7,8.1,11.3,13.4,15.1
1939,14.8,15.2,12.8,10.6,5,4.3,3.8,4,8.5,10.7,12.3,16.3
1940,15.6,16.7,13.5,9.5,5.9,4.3,4.5,6.3,8.3,11.8,13.7,14
1941,16.8,15,14.2,9.2,4.6,5.1,5.5,6.2,8.5,11.5,12.3,15.1
1942,15.8,15.2,12,11.2,6,5,4.4,5.1,8,11.9,14.1,16.7
1943,15.6,15.5,13.5,12.3,7.7,5.7,6,4.5,8,11.6,13.2,16.4
1944,16.4,15.9,15.3,11.8,7.7,3.7,4.4,5.1,8.3,11,14,15.8
1945,18.1,17.5,14.1,10.6,7.2,5.4,4,6.2,9.5,11.8,12.5,15.8
1946,16.5,14.7,13.6,12.8,7,5.3,4.8,5,8.9,11.5,12.3,13.8
1947,14.8,15,13.7,11.2,6.2,5.8,6,7.2,9.1,13.4,16,15.6
1948,16.3,15.9,12.7,11.9,7.4,5.5,4,4.2,8.2,12.2,13.5,14.7
1949,16.5,15.1,12.4,11.1,6.2,4.9,5,6.3,9.2,12.9,14.3,15.2
1950,15.6,15.7,13.8,9.7,3.9,4.5,5.3,5.2,7.5,10.9,11.7,14.3
1951,14.3,15.3,12.9,11.9,5.9,2.7,3.9,5.6,8.1,11.5,14.1,16.1
1952,17,16.2,13.1,11.5,6.4,5.7,4.8,5.8,9.5,11.8,15.3,15.9
1953,15.2,15.4,13.2,9.4,5.6,5,3.7,5.5,8,11,12.8,16.1
1954,15.4,14.3,13,11.2,6.7,4.7,3,5,7.7,12,13.1,14.2
1955,16.3,14.3,13.6,9.8,7.4,3.4,3.5,5.6,8.2,12,14.1,12.8
1956,14.6,14.9,14.1,10.2,7.3,5.5,5.1,6.2,7.9,12.9,15.9,16.6
1957,15,16.7,14.5,12.1,5.9,4.8,4.6,6.2,9,10.1,14.5,14.7
1958,16.8,15.1,14.5,10.9,5.9,4,4.6,5,8.2,12.9,13.1,15
1959,16.2,15.3,13.8,8.2,5.7,5.3,4.2,5.6,8.5,10.6,13.9,16
1960,17.3,15.9,15,10.6,7.8,4.4,5.1,6.4,9.6,11.7,14.1,14.6
1961,14.8,15.5,12.8,9.9,7,4,2.2,5,8.2,11.5,13.1,14.3
1962,16.1,16.4,14,11.3,7.3,4.8,6.4,5.3,9.5,13.7,13.8,15.6
1963,15,17.6,12.4,8.7,7.4,4.5,4.4,4,6.6,11.6,12.2,15.7
1964,16.2,14.4,13.2,11,5.5,2.3,4,4.6,7.6,12.9,13.8,15.7
1965,15.6,14,14.9,9.3,6.2,4.3,2.2,4.7,8.6,10.7,13.4,13.9
1966,16.3,13.6,13.1,10.8,6.7,3.3,1.5,5.5,7.4,10.4,14,15.2
1967,14.6,14.8,13.5,11.4,5,4.8,3.7,4.2,8.4,11.3,13.6,15.5
1968,16.3,14,13.4,11.6,8.2,7.1,4.9,6.6,8.1,11.2,13.6,14.5
1969,15.5,14.7,13.9,10.6,5,4.3,2.6,5.9,7.5,10,13.3,15.7
1970,16.3,14.9,12.7,10.4,5.7,4.2,4,4.6,8.5,11.2,14.1,13.9
1971,13.2,13.5,12.5,10.5,5.3,3.2,3,5.2,7.9,11.2,11.7,11.8
1972,14.8,13.3,11.7,10.7,4.1,3.8,3.2,4.5,7.1,9.7,14.5,15.5
1973,13.8,14.6,13.4,9.3,6.2,2.8,1,5.9,8.3,12,12.8,14.9
1974,15,15.2,13.9,10.8,4.9,4.8,3.6,4.7,8.8,11.4,12.7,14.8
1975,16.9,13.8,14.1,10.9,7.3,3.8,3.7,4.9,7.9,11.7,12.7,12.9
1976,13,15.8,11.3,10.1,7,2.8,4.2,4.9,7.7,10.4,11.7,12.4
1977,14.7,14.7,13.7,10.4,6.6,4.3,1.9,5.1,6.9,10.6,12.5,17
1978,16.1,16.3,14.8,11.7,5.5,4.8,2.6,5.5,9.1,11,12.7,14.9
1979,17.4,15.7,13.9,12.3,5.3,5.4,4.3,4,7.4,9.9,11.3,15.8
1980,15.7,13.3,12.5,8.9,5.8,4.5,2.6,4.5,9,11.8,11.4,14.2
1981,15.4,14.5,12.2,9.6,5.1,3.3,4.5,5.4,7.6,12.1,12.2,15.2
1982,17.2,14.6,13,11.3,7.1,2.5,1.2,3.6,6.5,9.4,13.2,15.1
1983,16.2,13.8,13.7,10.8,6.2,4.9,4.7,5.6,8.3,11.6,13.8,16.7
1984,14.9,14.3,13.6,10.9,3.2,2,0.9,4.2,9.3,11.4,14.6,17.5
1985,18.3,16.4,12.6,10,5.4,3.6,4.4,6.4,9.1,12,15.2,16.1
1986,15.2,13,12.2,9,5.4,3.3,4,7.1,8.2,12.1,11.9,14.8
1987,15.3,15.4,13.4,11.3,7.7,4.8,3.7,3.7,8.1,12.4,14.9,15.6
1988,15.4,16.3,14.3,10.4,7.8,5.8,4.2,3.9,9.1,9.9,13.2,13.7
1989,14.7,15.5,13.7,10.7,7.7,3.9,4.3,4.9,8.7,12.6,14.5,14.6
1990,15.6,18.2,13.6,9.2,6.7,4.5,5.3,4.9,8.2,11.3,11.8,14.9
1991,16.2,15,12.5,10.7,6.7,3.1,2.6,4.6,7.7,11.2,13.4,12.5
1992,17.7,14.2,13.1,10.7,5.1,3.4,2.3,5.2,7.9,10.4,14.4,17.1
1993,15.9,16.1,14.6,9.8,6.3,2.4,4.6,6.8,9.7,13.1,14.4,15.5
1994,17,14.9,13.6,11.4,5.6,4.1,3,6.5,7,10.9,14.5,15.9
1995,16.5,15.5,12.6,11.9,6.8,3.4,3.5,2.8,7.7,11.4,13.7,15.7
1996,14,14.1,14,9.7,7.9,5,5.4,6.3,10.3,11.5,12.9,15.1
1997,15.6,13.6,14.3,10.2,4.5,3,2.8,5.6,7.2,10.6,12.9,13.8
1998,15.3,16.8,14,11.3,5.4,5.4,6.2,6.9,8.7,12,13.7,14.4
1999,16.5,14.8,13.2,11.8,6.3,3.9,3.9,5.3,8,13,14.8,14.7
2000,15.3,14,12.7,11.7,6.6,3,2.6,4.9,5.7,11.3,12.1,13.4
2001,15.1,14.8,12.1,10.3,5.8,5,2.1,4.7,8.1,11.9,12.9,15.3
2002,15.2,15.7,11.6,10.2,3.4,2,3.4,4.4,7.5,9.5,12.5,15.2
2003,14.1,13.8,14.1,11.3,8.1,5.1,6.1,7,9.3,11.2,13.6,14.7
2004,16.4,17.8,14.5,10.8,7.4,6.1,3.6,6,8.7,12.7,15.2,16.4
2005,15.6,17.7,13.1,10.4,5.8,2.3,4.3,5,9.8,11.9,13.7,15
2006,16.4,15.4,13.7,11.5,7.8,4.2,4.3,5.3,8,12,13.4,14.6
2007,15.5,14.5,13.4,10.1,5.8,4.2,3.4,5.9,9.4,11,13,15.1
2008,17,16.2,14.7,10.5,6.1,5.1,3.8,3.8,10.1,12,13.6,16.7
2009,16.6,15.3,14.1,10.7,6,5.5,4.4,5.4,9.4,10.7,10.6,15.5
