1901,16,16.2,14.7,9.9,8.7,7.3,4.4,4.7,10.3,12,13.4,16.7
1902,17.1,17.1,14.9,12.9,9.4,7,4,2.2,8.5,10.7,12.4,16.1
1903,16.1,16.7,13.9,10.6,7.7,5.2,4.1,5,10.3,10.2,13.2,15.2
1904,15.8,13.7,12.8,12.8,8.7,5.6,5.8,5.1,10.6,10.4,10.7,14
1905,15.4,15.8,14.1,9.8,6.3,5.7,2.8,5.7,9.4,10.9,12.4,15
1906,16.6,18.8,17.4,13.9,10.6,2.1,4.1,5.2,9.8,12.8,15.3,16.4
1907,18.2,16.4,13.7,10.8,6.1,3.4,4.1,3.6,6.4,10.1,14.1,16.9
1908,18.1,15.9,15.3,10,7.3,6.3,4.7,4.4,7.1,10.5,13.1,15.3
1909,18.7,15.1,14.9,12.2,5.7,2.8,3.2,7,8,10.1,11.6,15.2
1910,17.3,15.7,13.2,11.1,6.9,5.9,4.1,6.3,8.1,11.1,13.6,14.7
1911,18,16.3,14.5,10.5,8.2,3.7,4.6,3.5,5.6,9.8,13.9,16.3
1912,17.6,17.7,16.7,12,7,6.1,3.5,3.8,10.2,12.6,13.6,18.2
1913,17.7,19.1,14.9,14.1,9.5,7.1,8.4,6.1,8.6,11.8,15,15.3
1914,17.6,16.9,12.7,9.8,8.6,7.4,6.9,6.2,7.8,9.7,11.8,15.2
1915,15.4,16.4,12.6,11.4,8.3,2.1,4.8,7,7.8,11.4,14,16.8
1916,16.8,15.5,13.9,12.3,8.1,0.6,2.3,5.5,10.1,12.8,15.7,15.5
1917,18,15.4,13.8,11.9,5.9,5.1,3.1,4.3,8.5,10.2,13.5,17.5
1918,15.7,14.6,13.7,12.1,6.7,4.1,4.6,6,6.4,10.5,13.5,16.1
1919,17.6,16.1,13.5,11.7,11.3,4.4,4.6,5.2,7.2,10.7,13.3,16.9
1920,18.3,15.9,15.6,12.8,9.6,3.8,1.8,5.1,8.9,9.8,13.7,16
1921,15.5,15.5,12.2,11,10,1.3,2.4,4.3,7.1,9.9,12.4,16.7
1922,14.9,16,13.4,9.6,7.3,2.5,5.8,3.5,7.9,9,13.3,14.6
1923,15.1,16,15.5,11.5,5.8,6.1,1.9,4.4,8.3,8.2,13.6,14.3
1924,15.6,16.3,14.8,10,6.6,4.3,3.6,3.1,6.6,10.4,12.7,16.9
1925,16.7,17.3,16.5,11.4,6.4,3.6,3.5,6.8,8.8,9.6,13.5,16.1
1926,17.3,17.7,16.7,11.3,6.7,5.5,3.6,6.1,7.9,11.7,13.5,15.5
1927,16.4,17.3,14.3,10.7,7.4,4,4.5,5.9,6.8,10.5,13.4,14.2
1928,16.6,13.9,13,11.9,6.5,2.9,3.6,3.8,6.4,9.1,13.7,14.8
1929,16.7,17.6,14.7,13,5.7,2.6,4.7,4.3,8.7,9.5,13.7,17.4
1930,18.3,17,15.1,12.1,7.5,8.7,2.4,2.7,8,8.3,12,16.8
1931,15.9,16,13.4,10,3.8,2.3,2.7,3.1,5.2,11.8,10.8,16
1932,17.3,15.5,15.5,11.3,5.3,5.3,6.2,3.6,8.2,10.4,14,15.3
1933,16.4,15.5,13.6,11.5,7.6,4.2,0.6,6.2,7.4,11.8,13.8,15.5
1934,16.5,14.1,13.6,8.5,6.7,5.3,4.3,4.8,6.5,8.4,11,14.5
1935,16.2,16.7,15.5,9.7,10.6,5.3,3.1,5.2,6.2,7.3,14.3,15.8
1936,17.4,15.2,15,10.9,7.3,4,4.7,3.4,8,11.5,10.7,15.6
1937,16.8,18.1,14.5,11.8,6.8,6.6,3.7,5.2,6.5,9.2,14.3,17.6
1938,17.5,16.7,13.2,8.4,7.4,4.5,3.4,2.5,8.1,11.7,14.9,18.1
1939,18.6,16.9,14.6,7.9,7.3,6.3,4.8,6.7,7.7,10,10.9,13
1940,14.9,14.7,12.9,10.8,9.3,6.5,5.7,3.8,7.5,8.1,11.9,16.7
1941,16.9,13.3,12.2,9.6,6.2,3.8,4.3,4.9,4,11.3,11.7,17.1
1942,16.7,15.4,12.8,9.4,5.3,0.1,0.1,3.8,7.5,9.9,12.7,15.3
1943,16.5,15.4,12,9.8,7.5,4.7,4.7,0.9,5.7,10.1,12.3,15.8
1944,15.2,15.9,12.5,9.8,6.8,5.3,5.2,5.4,10.2,11.9,12,17.2
1945,16.8,15,14.6,12.2,8.3,5.4,3.4,7.2,9.3,12.8,12.6,15.6
1946,14.8,18.5,13.8,11.9,7.1,2.4,3,4.8,8.5,9.8,14,15.6
1947,17.7,16.6,14.4,10.1,8.5,6.9,2.2,2.6,7.4,9,13.2,15.4
1948,17.1,15,12.7,10.1,7.7,5.6,3.3,3.3,9,9.9,12.9,18.1
1949,16,16,13.9,11.5,8,4.5,2.4,4.4,6.6,8.1,14.5,16.8
1950,17.1,15.3,14.3,12.5,9,5.1,4.7,6,6.1,9.4,12.5,16.7
1951,17.8,14.4,14.4,8.7,9.9,6.7,5.7,3.6,8.3,12.2,15.1,15.7
1952,18.1,15.9,17.4,11.5,9,1.1,5.2,3.9,7.7,10.2,11.8,15.7
1953,16.7,17.7,14.4,10.4,8,4.6,1,4.6,10.7,9.3,14.8,15.8
1954,18,17.6,15.9,10.3,5.9,4.1,2.1,4.3,6.5,10.1,15,17.8
1955,19.5,15.7,12.6,10.5,6,4.7,0.7,3.9,7.6,9,14.3,16.2
1956,16,15.2,14.5,9.1,4.1,3.4,5.1,4.7,8,9.6,10.5,14.4
1957,16.9,15,15,8.6,10.2,2.9,0.9,4.8,5.9,12,13.5,16.3
1958,16.1,16.4,13.5,11.5,6.5,6.3,8.5,3,8.4,11.9,13.9,13.8
1959,15.5,16.5,13,8,5.7,4.1,4.4,3.4,7.3,10.6,13.1,16
1960,17.5,16.5,12.8,11.1,6.9,5.5,2.6,5.6,8.3,10.7,13.2,16.7
1961,16.5,16.2,13.2,10.4,9.9,3.5,4.1,8,7.8,12.1,14.4,16.3
1962,15.9,15.8,15.3,11,6.8,2.3,0.8,5.1,8.3,10.7,16.1,16.8
1963,17,16.5,13.7,13.5,8.8,5.7,7.1,5.4,8.1,10.3,11.3,15.3
1964,16.1,16.2,13.5,11.8,11.5,2.3,2.1,3.4,7.5,9.4,13.1,14.4
1965,16.8,16.6,12.6,10.2,7.1,8.8,3.4,5.5,6.6,11.7,13.9,15.3
1966,16.8,14.4,13.5,12.6,7.7,7,3.5,2.8,6.7,10.6,15,15.4
1967,16.3,15.6,13.1,12.8,11.1,-0.2,4.1,5,7.2,12,13.1,17.2
1968,16.5,16.9,13.6,8.8,5.4,6.8,7.4,6.9,8.3,11.7,15.7,16.4
1969,17.5,16.9,15.1,12.4,10.5,4.2,4.6,3.3,9.3,10.9,14.7,17.2
1970,17.1,17,15,14.9,8,5,2.9,4.1,10.1,10.8,12.5,16.9
1971,15.4,14.4,13.4,8.8,5.6,0.8,5,4.6,10,11.4,15.5,17.9
1972,17.6,16.7,13,10.1,10.2,7.7,3.4,5.1,9,10.2,12.8,16.9
1973,17.7,16.1,15.5,12.3,7.5,5.6,2.7,4.4,6.4,11.3,13.5,14.9
1974,17.7,15.2,13.2,12,9.1,3.6,6.5,4.5,7,10.8,13.3,14.7
1975,17.1,15.8,14.3,11.6,9,8.6,1.4,3.6,7.6,10.6,12.9,17.6
1976,16.7,15.9,12.3,8.6,6.7,3.3,3,4.9,7.8,11.6,14.5,16.9
1977,17.7,16.7,14.7,11.6,6.1,6.1,4.6,5.2,9.6,12.7,14.2,17.3
1978,16.6,15.2,15,10.7,7.5,3.8,6.5,2.4,8.7,11.6,14.5,17
1979,17.5,15.7,13.3,8.6,6.5,2.4,5.5,7.9,6.4,11.3,12.6,15.6
1980,16.7,15.7,16.7,12.3,9.9,3.4,1.7,5,7,11.2,13.1,16.7
1981,16.3,16.7,14.5,10.9,11.2,3.2,2.7,7.1,6.4,10.7,13.2,16
1982,16.4,15.2,13.2,12.5,8.8,6.7,5,6.2,10.5,11.3,13.4,17.3
1983,17.6,15.6,14.4,12.2,8.5,1.5,2.2,4.3,6.8,12.9,14.2,18.4
1984,18.1,17.3,15.2,10,7.6,3.4,3.2,3.6,8.9,13,13.8,14.9
1985,16,16.4,14.6,10.8,9.4,6.2,3.8,5,8.1,12.1,15.6,17.4
1986,18.4,16,13.1,12.7,8.5,6.5,6.2,7,9,12.3,14.3,18.7
1987,18,16.9,14.8,11.7,4.6,4.7,5.6,5,7.3,12.1,15.1,15.6
1988,17,15.6,16.1,11,4.5,1.4,2.1,4.2,7.1,10.9,15,18.5
1989,18.5,18.2,13.6,11.1,7.4,7.7,3.2,6.2,7,11.2,14.2,18.3
1990,17.6,16.5,14.6,12.3,6.6,2.8,3.9,8.3,6.5,12.8,15.1,16.9
1991,17,16.2,16.4,12.3,9.5,6,4.7,4.9,9.1,10.1,14.3,16
1992,17.1,15.4,15,10.5,7.8,7.8,2.5,5,7.8,11.4,12.4,16.8
1993,17.7,14.9,16.3,11.8,7.6,4.5,2.8,3.8,6.3,11.9,13.8,16.2
1994,16.8,15.3,14.4,11.8,10.5,7.5,4.3,6.2,10.7,12.1,14.4,20.1
1995,17.6,15.2,14.5,10.8,8.1,5.5,3,4.4,10.2,11.1,16.3,18.5
1996,17.1,17.5,14.5,12.6,10.2,4.1,1.8,7.3,8.1,12.3,14.8,17.4
1997,18.3,15.7,15.3,12.1,9.9,3.9,6.8,6.7,9.7,11.9,14,17.3
1998,17.1,15.4,13.4,11.5,8.1,6.5,6.3,5.9,6.3,12,13.1,16.4
1999,15.3,17,15.5,9.7,9.1,5.3,2.4,5,9.7,11.6,12.1,15.8
2000,17.2,15.8,14.5,13,7.2,5.1,1.2,4.4,7.6,12,13.2,16.9
2001,18.4,18.6,15.7,11.9,7.6,5.5,3.8,7.4,8.7,12.6,14.6,16.2
2002,16.2,15.2,14.7,11.2,8.8,2.8,4,6.2,8.3,13.1,14.8,17.5
2003,17.9,16.1,15.3,11.5,9.1,7.5,3.6,4.7,8,13.2,14.8,16.6
2004,18.4,15.7,15.6,12.7,5.6,4.8,4.7,5.4,9,11.6,13.9,17
2005,17.8,16.7,14.2,9.3,7.1,7.8,5,6.1,6.1,10.6,15.1,16.6
2006,18.2,16.5,14,12.8,6,7.1,5.9,4.1,8.4,13.3,14.1,17
2007,16.8,16.8,14.8,12.3,5.1,3,1.6,1.4,9.8,13.2,13.8,16.6
2008,17.9,16.2,15,10.8,6.7,2.2,6.8,5,6.9,12.1,14.8,16.2
2009,15.6,16.5,15.9,13.8,8.9,3.6,1.7,7.3,6.3,11.9,16.6,17.4
