1901,14.9,13.5,12.4,10.8,6.7,4,2.9,5,7.7,9.5,12,12.8
1902,13.7,11.9,12.3,10.7,5.5,2.8,0.7,4.1,5.5,8.7,10.2,13.4
1903,14.1,12.1,10.7,9.6,7,3.8,3.7,3.9,5.6,9.3,10.8,12.6
1904,14.8,12.9,11.8,9.9,5.1,3.4,2.7,4.4,5.6,8.5,11.1,13.4
1905,15.3,13,13.2,9.3,3.8,3.2,1.9,2.6,5.6,8,10,11.8
1906,13.6,12.8,11.3,8.6,5.1,2,1.2,3.9,6.5,9.1,10.7,12.2
1907,12.3,12.3,10.8,8.2,4.9,2.1,2.9,3.8,5.8,8.1,9.9,10.2
1908,13,13.1,11.2,6.8,5.2,3.8,2.6,3.4,5.1,8.6,9.4,10.7
1909,12.9,11.6,10.5,7.9,4,2.6,2.2,2.7,5.4,8.5,9.4,11
1910,11.9,12.4,12,7.9,5.2,2,3.8,4.1,7.3,10,11.1,13.8
1911,12.3,11.8,11.3,7.5,5.3,4.8,3.9,3.2,6.4,9.3,11,13
1912,14.8,11.7,11.9,9.7,4.1,3.6,4.4,3.6,6,9.4,8.6,11.8
1913,14.6,11.6,11.4,8.6,4.2,2.5,2.2,3.6,7.8,8.2,10.4,12.6
1914,12.6,12.8,12.1,9,5.7,1.9,3.1,3.7,5.7,8.7,9.2,12.7
1915,13.3,12.4,12.8,7.7,4,3.1,3.8,3.9,7.4,10,11.1,12.2
1916,14.2,13.5,11.5,9,6.4,4.1,3.5,5.4,6.7,9.5,10.8,12.4
1917,12.9,13.6,11.4,10.2,6.7,3.9,4.5,4.2,6.9,10.2,12.4,11.9
1918,13,13.8,11.1,8.3,4.4,4.6,2.3,3.5,6.2,9.8,9.3,13.7
1919,13.4,13.6,12.6,8.2,5.9,4.4,3.8,5.9,6.3,8.8,9.2,13.1
1920,13.9,13.3,10.3,10.1,5.5,4.3,2.9,5.8,6.9,8.3,10.6,12.6
1921,13.6,12.3,12.2,9.9,4,3.9,4.6,3.8,6.8,9.7,11.2,12.2
1922,12.4,12.5,11,9.4,7,3.6,4.1,4.7,6.9,9.4,11,13.8
1923,13.5,12.8,10.7,7.8,6.9,2.7,1.7,3,6.3,8.6,10.2,11.5
1924,13.8,12.6,11.6,9.7,6.6,4.5,3.6,5.5,7.2,10.4,10.9,12
1925,12.6,11.9,11.3,8.4,6.1,3.8,3.9,4.3,6.9,8.5,9.9,12.7
1926,12.4,13.1,9.9,8,6.5,4.5,2,4.9,6.2,7.1,10.2,12.7
1927,12.8,12.6,12,9.5,6.2,4,3.7,4.4,5.6,9.5,10.5,12.7
1928,12.4,12.4,10.6,8.9,6.5,2.7,2.6,6,8.5,10.3,10.3,11.4
1929,13.8,13.9,11.9,9.6,6.6,4.9,4.1,4.7,6.2,9,9.4,10.5
1930,12.8,14,10.3,10,5.6,4.2,1.7,4,7.5,8.4,12.2,11.7
1931,15,12.9,11.5,9.4,6.9,4.1,2.6,5.5,6.2,8.8,10.8,12.1
1932,12.3,12.8,11,8.7,6.6,3.6,3.9,4.5,6.4,9.1,10.2,10.5
1933,13,10.7,9.7,9.4,6,4,3.4,5,6.7,7.8,9,11.5
1934,12.7,11.3,10.8,9.4,5.8,1.9,4.2,4.9,8.4,9.5,10.2,12.2
1935,13.3,11.1,11.4,9.4,7.7,5.1,3.2,5.7,6.1,8.8,9.1,10.3
1936,12,13.6,11.2,8.9,4.4,3.3,4.4,4.7,6.1,8.5,10.1,11.5
1937,14.8,11.3,11.3,8,5,2.8,3.2,3.3,6.5,9.9,9,12.7
1938,10.8,12.8,10.7,9,6.4,4.4,4.3,4.5,5.8,7.7,9.8,10.9
1939,11.2,11.7,10.8,8.1,4,4.4,3.1,3.9,7.5,8.2,10.4,14.9
1940,12.7,13.8,10.6,7.6,5.3,4.7,4.6,4.4,7.5,10.7,9.8,11
1941,13,12.7,11.3,7.3,4.1,4.8,4.7,4.7,6.9,8.3,10.2,9.3
1942,12.8,12.2,9.5,9.1,5.1,4,3.2,3.8,6.7,9.4,11.3,13.4
1943,13.7,12.6,11,10.7,7.6,4.3,4.7,3.6,6.8,8.7,11.5,15.3
1944,14.4,13.7,14,10.3,8,2.7,4,4,6.1,7.2,10.8,12.6
1945,15,15.7,12.3,9,5.6,3.8,2.5,4.5,7.4,8.9,9.5,11.6
1946,11.7,10.1,11.7,10.6,6.3,4.5,4.7,4.5,6.2,8.2,9.4,11.8
1947,10.7,11,10.5,8.9,6.2,6,4.8,4.9,6.5,9.7,12.5,11.8
1948,12.8,12.8,10.7,9.8,6.9,4.8,2.2,2.8,7.4,9.4,11.9,11.4
1949,14.2,11.8,9.9,10,5.8,4.2,4.4,5,7.1,10.5,11.3,12.7
1950,13.9,12.7,11.3,8.3,4.4,4.6,5.3,3.7,6,8.3,9.2,9.9
1951,12.7,13.2,11.2,10.3,5.4,4.2,3.7,5,5.6,8.6,11.6,14.1
1952,13.1,13.2,10.2,9.4,4.9,4.8,4.2,5,7.9,9.7,11.8,13
1953,13.5,14.9,11,9.5,6.3,4.2,3,4.4,6,7.6,10.2,14
1954,12.5,12.2,12.3,8.5,5.5,3.1,2.4,3.9,6,8.1,10.3,11.4
1955,14,10.5,11.3,8,5.7,3,1.7,4.7,6.5,9.3,11.5,9.7
1956,10.9,11.7,12.5,7.1,4.7,4.1,4.3,5.6,5.7,10.7,14.4,15.1
1957,13.5,15.3,12.5,10.2,5.5,4.6,2.9,3.8,7.2,8.4,12.8,12.3
1958,13.8,12.8,13.6,9.1,4.3,2.8,5,4.2,7.1,11.9,10.5,13.4
1959,14,13.2,10.7,6.9,6,5,4.4,5,7,9.3,12.2,15
1960,16.1,14.4,13,9.1,7.3,2.8,3.4,5.7,7.3,8.2,11.2,12.1
1961,11.3,12.1,10.3,8,5.7,2.4,2.2,4.6,5.9,9.1,10.5,12.1
1962,13.6,15.6,12.1,9.2,7.2,4.7,4.4,5.4,7.6,11.4,10.7,13.1
1963,12.7,15.6,10.6,7.3,6.3,3.7,3.6,4.1,5.9,10.7,9.8,12.7
1964,14.4,11,10.6,9.4,5.6,1.8,4,4.5,5.9,10.8,11.1,12.8
1965,13.3,11.5,13.3,7.8,4.5,4.2,1.1,4.5,6.4,8.5,10.6,11.6
1966,14.6,12.4,11.9,10.7,7.5,4.2,2.2,5.3,7.7,8.5,13.4,12.5
1967,13.1,12,12.3,10.5,5.7,3.8,3.9,3.6,7.2,9.6,10.7,13.5
1968,14.3,10.9,12,10.9,8.5,5,5.3,6.2,7.5,8.3,11,11.1
1969,13.9,12,12.4,9.3,5.9,4.7,3.2,5.3,5.6,7.7,10.8,13.7
1970,13.6,13.3,11.6,9.2,6.1,3.8,4.3,4,6.9,9.2,11.3,10.1
1971,9.7,11.3,10.3,9,5.6,3.1,3.5,4.7,6.7,9.3,9.3,8.7
1972,12.5,10.9,9.9,9.9,3.8,3.4,2.8,3.9,6.2,7.6,13,13.4
1973,11.2,12.5,11.9,8.5,5.5,4.1,2,5,6.4,9.3,11,11.9
1974,11,13.6,10.7,9.4,5.4,3.7,4,4.2,7.1,9.1,10,12.9
1975,15.6,11.4,12.6,9,5.9,4.5,3,4,6.4,8.6,9.5,9.9
1976,10.8,13.3,10.2,9.2,7.1,3,3.2,4.7,7.7,9,10,11
1977,12.3,12.8,11.5,9.5,6.2,3.6,2.5,5.2,6.8,9.1,9.7,15.1
1978,13.7,15.7,12.7,10.3,6.5,3.7,3.7,4.5,7.7,8.2,11.3,12.4
1979,15.5,13.6,12.9,10.8,6.2,5.8,4.4,4.3,5.6,8.3,10.5,13.7
1980,14,11.8,11.1,6.7,5.4,4.1,3.1,4.5,7.6,9.6,9.3,11.9
1981,13.4,12,11.5,9.6,4.8,4.1,4.5,5.5,5.7,10.3,9.9,12.6
1982,15.1,11.7,11,10.5,6.8,1.7,1,4.2,6.9,7.3,10.8,15.2
1983,15.2,12.4,12,9.7,6.2,3.8,4.2,5.4,6.6,9.8,11.7,15
1984,13.2,11.1,12.4,8.9,3.9,1.1,1.6,4.8,8.5,7.9,12.1,14.8
1985,14.8,13.5,10.4,8.2,5.6,5,4.9,5.8,7.1,9.5,13.6,13
1986,12.5,11.5,10.2,7.8,5.8,3.8,4.5,5.2,7.4,10.4,9.3,12.8
1987,14.1,13.6,13.4,10.3,6.1,6.1,4.1,4,7.3,10.2,12.6,12.7
1988,13.2,15.6,11.9,9.1,6.3,5,3.5,4.2,8.2,8.5,10.6,10.6
1989,13,13.9,11.3,8.8,6.8,4.5,4.4,4,7.5,11,11.4,10.8
1990,12.6,15.8,11.7,7.8,6,5.5,5.3,5,7.3,9,9.6,12.2
1991,13.3,13.5,11.2,9.2,5.9,3.9,2.9,4.1,6.4,9.2,10.6,9.9
1992,15.1,11.7,12.4,9,4.9,3.2,2.6,5.5,6.6,7.4,12.7,12.4
1993,13,13.6,12.9,8.4,5.4,2.8,3.5,5.7,7.8,10.5,11,12.5
1994,13.7,12,11.8,9.2,6.2,4.6,2.5,5.3,5.9,9.1,11.3,13.2
1995,12.8,13.3,10.7,10,6,2.8,2.5,2.5,6.2,9,10.8,14
1996,12.1,12.3,11.4,8.3,6.9,3.5,4.9,5.8,8.7,8.6,10.2,12.9
1997,12.9,11.1,12.3,9,5.2,3.5,3.4,4.5,6,8.5,10.5,11.1
1998,12.3,15.2,11.4,9.1,5.9,4.7,6.1,6,6.8,10.1,10.8,12.3
1999,14.5,12.4,11.4,9.6,5.8,3.5,3.3,5.3,7.1,10.9,12.2,12.4
2000,13.8,12,10.8,10.1,6.3,3.4,2.5,4.4,5.4,9.6,10,11.7
2001,12.8,13,10.7,8.8,5.6,4.6,2.8,4.8,7,9.4,10.6,13.6
2002,13.5,13.1,10.3,8.7,5,2.4,4,4.8,6.3,8,10.5,12.7
2003,12.1,11.8,12.3,9.3,6.9,4.8,4.6,5.6,7.3,9.1,10.5,11.3
2004,14.5,14.8,12.4,8.5,6.3,5.5,3.3,5.7,6.8,9.3,11.8,12.9
2005,13,14.5,10.8,8.6,4.9,2.6,4.3,4.3,7.6,8.8,10.8,12.4
2006,13.4,13.4,11,9.4,6.7,5,3.7,4.5,6.8,9.1,10.7,11.6
2007,13.3,12.3,11.4,8.5,5,3.4,2.8,4.1,7.4,8.3,10.1,12.4
2008,14.6,14.1,12.7,9.1,5.3,4.3,3.9,3.7,6.9,9.6,11.7,14.2
2009,14,12.9,12.1,10.2,5.6,5,3.6,5.7,7,8.7,8.7,12.1
