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