1901,12.2,13.5,10.7,9.2,5.5,4.3,2.7,4.5,4.8,7.4,9.6,11.9
1902,11.5,13.7,13,7.9,7.4,3.6,2.8,3.2,4.6,7.8,8.2,12.3
1903,12.1,12.6,11,7.7,4.8,2.9,2,2.7,5.3,6.7,8.4,11.8
1904,12.8,13.7,11.3,7.9,5.5,3.7,3.6,3.4,4.5,6.6,8.6,11
1905,12.9,13,12.2,9,4.7,2.9,4.4,2.2,5.1,6.9,9,11.7
1906,12.5,13.6,12,7.9,5.5,4.3,1.2,3,3.9,6.5,10.1,11.4
1907,12.5,13.2,11.9,8.2,4.2,3.1,3,3.7,5,6.6,8.4,11.3
1908,11.9,12.6,11.3,7.9,6.2,3.1,2.8,2.9,4.4,7,8.8,12.3
1909,13.4,13.5,11,9.3,5.8,4.6,3.5,3.8,5.7,6.4,10.1,10.3
1910,13.2,13.5,11.6,8.6,6,3.7,3.6,2.7,4.9,7.2,8.6,12.7
1911,13,14.6,12.3,8.7,6.3,3.8,2.1,3.1,4.9,8,9.8,11.7
1912,12.8,12.8,12.4,9.1,5.4,5.7,2.7,3.4,4.1,8,9.1,12.7
1913,14.3,14.2,12.5,8,6.4,4.6,1.9,4.2,4.4,7,10.2,11
1914,12.8,13.4,11.8,8.3,6.4,3.4,3.5,2.8,5,8.4,9.5,11.2
1915,14.6,14.7,12.7,7.4,6,4,1.3,3.6,4.7,7.3,10.1,12.6
1916,13.1,13.7,11.4,9.4,4.8,2.7,2.7,3.6,5,7.6,10.4,12.8
1917,13.3,14.9,11.8,9,4.8,3.2,3,2.6,4.8,7.5,9.2,12.5
1918,13.2,14.1,11.5,9.4,5.7,3.7,2.4,4.2,5.6,7.8,9.7,12.1
1919,12.8,14.1,13.3,9.7,6.6,4.3,2,4,3.8,7.7,9.8,12.4
1920,14.6,13.9,12,10.2,6,3.4,3.4,4.1,4.5,6.9,10.9,11.9
1921,12.1,14.8,12.9,8.6,6.7,3.9,1.7,2.3,4.2,6.5,10.4,12.1
1922,12.4,13.4,12.2,9,5.9,3,3.3,2.4,5.1,7.5,9.5,12.4
1923,13,13.5,12.5,8.4,4.9,3.5,2.6,3.9,4.8,8.4,10.4,12.8
1924,13.7,13.9,10.5,9.4,4.5,3.4,3,3.1,5.1,6.7,8.9,13.7
1925,12.9,15,12.8,9.2,6.1,3.1,3.1,4.4,5.8,7.4,9.5,11.7
1926,13.9,13.1,12,9,6.1,3.8,1.8,3.3,4.3,6.8,9.4,12.1
1927,14,14.1,12.4,9.6,5.3,4.8,3.5,4.5,5.6,8.3,11.3,12.3
1928,13.6,13.8,11.9,9.1,6.8,3.2,4,4.1,4.4,7.2,9.4,12.2
1929,14,13.1,12.1,8.4,5.6,4.4,2.3,4.5,5.3,7.8,9.9,12.7
1930,13.2,13.4,12.5,8.5,7.7,4.3,3.7,3.9,4.5,8.2,10.7,12.7
1931,15.1,14.6,13.7,7.7,5.6,3.3,2.6,4,5.1,7.2,11.8,12.3
1932,12.4,14.6,12.5,11.1,7.8,4.1,2.6,4.5,5,7.9,11.5,12.2
1933,13.4,13.6,11.2,10.1,5.6,2.8,2.4,2.9,5.5,8.3,10.8,13.9
1934,13.7,14.7,11.9,10.8,7.1,6.2,2.4,3.6,6.1,8.2,11.3,13
1935,13.9,14.5,11,9.3,5.5,3.8,2.5,4.4,4.4,7.8,9.9,11.9
1936,11.5,12.1,13.2,9.5,4.6,5.2,4.1,5,6,7.3,10.2,12
1937,13.7,14.9,12.4,9.2,5.8,4,2.9,4.9,5.2,8.1,10.6,13
1938,13.1,13.2,12.4,8.9,6.1,5.3,4.1,3.3,5.2,7.3,9.5,12
1939,13.7,13.6,12.2,8.3,7,5.6,3.9,3.9,5.9,8.5,11,13
1940,13.7,15,10.9,8.3,4.9,3.4,3.2,4.4,4.7,8.1,9.7,11.7
1941,14.4,13.3,11.6,8,6,4.2,3.4,5.4,4.8,7.2,10.1,12.5
1942,13.9,13.8,12.2,10.2,6.3,4.1,3.2,3,4.8,8.7,11.3,12.4
1943,12.2,12,12.6,8.8,5.1,3.7,2.2,3.5,5.7,7.4,10.6,13.1
1944,13.8,14.6,12.3,9.5,5.3,3.6,3.1,3.4,5.5,8.1,10,11
1945,12.7,14.4,13,10.2,6.3,4.5,2.8,3.2,6,7.6,11.2,10.8
1946,12.6,13.6,11.9,9.7,6.9,3.3,2.5,4.2,5.2,7.7,9.9,11.8
1947,13.1,15.2,13.5,8.2,6.2,2.8,2.7,2.7,5.7,7.6,10.7,12.5
1948,13.6,14.2,12.1,9.6,6.8,2.5,2.3,2.9,3.7,7.2,9.8,11.9
1949,13.8,13.6,12.3,8.1,6.9,4.5,3.1,4.7,5.9,7.1,9.5,12.9
1950,13.6,13.6,13,8.5,6.6,4.2,2.7,4.5,5.3,7.9,10,11.4
1951,11.9,13.7,11.6,10,7.3,5.2,2.8,3.7,4.3,7.4,9.1,11.6
1952,13.8,14.8,11.9,9.9,5.6,3.3,2.4,4.6,5.5,9,11.5,12
1953,14.5,14.5,12.4,7.9,7.1,4.2,3.3,3.9,5.9,8.1,10.7,12.3
1954,13.2,13.5,13.2,8.8,6.8,4.7,2.1,4.3,5.6,7.2,9.6,12.1
1955,14.2,13.1,12.9,8.2,7.1,5,4.3,3.7,4.7,6.4,9,10.9
1956,14.4,12.6,11.9,7.4,4.6,3.3,3.3,2.5,5,6.9,11.1,12.1
1957,14,13.3,12.2,7.5,5.9,3.9,3.1,3.6,5.4,6,8.9,13.3
1958,14,12.1,11.6,8.6,5.4,2.7,3.1,3.8,5.2,7.2,9.2,13.7
1959,12.7,14.4,11.6,8.2,5.5,4.2,2.9,4.3,5.4,7.3,10.6,12.6
1960,13.9,13.4,12.3,8.1,5.6,4.4,3.1,3.4,5.9,8,11.8,13.3
1961,14,13.7,13.3,10,5.4,5,3.8,4.5,6,6,11.1,11.8
1962,13.5,13.7,12.3,8.2,5.3,5.3,3.1,4.2,5.4,8.2,10.5,13.4
1963,15.9,14.1,12.7,8.6,6.2,5.3,3.2,4.7,7.3,9.6,12,13.8
1964,14.9,14.3,13.3,8.9,7.1,4.2,3.6,3.5,5.5,8.4,10.2,13.2
1965,14.3,13.5,12.8,10.2,6.2,2.8,4.1,3.9,6,8.5,9.9,10.6
1966,14.1,12.5,11.8,10.2,6.7,4.2,2.9,4.7,5.7,8.1,10.5,12.7
1967,12.9,14.6,12.5,9.5,6.7,4.1,2.1,3,5.5,7.7,11,13.1
1968,12.6,12,13.2,8.6,7.2,3.6,2.5,3.3,5.1,7,10.5,12.1
1969,12.9,14.2,13.3,8,5.3,3.7,2.4,4.4,4.8,8.5,9.8,12.7
1970,14.3,13.8,12.3,9.1,6.2,4.3,1.8,3.8,4.7,8.8,9,11
1971,13.3,15.2,12.9,9.2,6.4,4.6,3.5,4,3.9,7.1,10.3,13
1972,14.1,14.2,12.3,9.1,6.8,4.8,3.7,3.7,6.2,8.6,11.3,11.7
1973,13.2,14.5,12.6,10.3,6.3,5,4.6,4.1,4.3,8.3,11.7,13.1
1974,14.3,15.7,13.2,10.6,7.1,5.7,2.6,4.6,5.2,6.9,11.2,12.9
1975,13.8,14.8,12.5,9.6,6.5,5,3.8,3.4,7.6,7,9.8,13
1976,14.6,14.7,12.6,9.4,7.6,4.9,3.4,3.7,6.8,9,8.6,12.2
1977,13.2,15.4,12.7,11.1,5.9,5.6,2.8,5,6.9,8.3,11.6,14.2
1978,15.3,13.5,12.8,9.5,5,3.8,3.4,4,4.2,6.4,11.1,13.8
1979,13.7,13.6,11.8,9.3,7.3,5.3,4.1,5.2,5.3,7.5,10.6,13.4
1980,14.2,13.8,13.3,9,5.1,4.1,3.5,5,6.1,7.7,10.1,12.9
1981,13.3,15.1,11.7,9.5,7.2,2.5,1.9,3.3,5.5,7.7,10.5,13.5
1982,14,14.3,13.8,9.4,7.5,4.5,3.9,4.6,8.6,9,10.3,10.7
1983,13.6,12.8,12.5,10.1,6.6,4.4,4.1,3.5,5.6,8.8,12.1,14.1
1984,14.1,14.6,12.2,9.5,6.8,5.2,4.2,3.8,6.8,8.8,11.6,12.4
1985,15,15.3,12.1,9.8,6.4,5.2,4.2,5.5,6.1,9.8,13.7,13.5
1986,14.5,13.7,11.7,9.6,7.5,6.1,4.2,6,7.2,8.9,9.9,13.9
1987,12.6,13.9,13.8,9.9,8.4,5.2,4.8,5,7.3,8.8,10.2,12.8
1988,14,14.7,12.6,9.8,7.5,4.3,3.5,5.7,6.5,7.9,11.1,13.3
1989,14.9,15.2,13.2,11,6.5,5.6,3.6,5.6,6.2,7.9,11.6,13.3
1990,14.5,14.9,12.1,9.6,6.9,4,4,4.6,6.3,7.7,9.7,13.3
1991,14,14.5,12.8,10.3,7.4,4.8,4.5,3.3,5.9,10,10.7,12.7
1992,14.8,14.8,13.3,9.6,5.7,4.9,3.5,5,5.9,8.6,10.6,12.6
1993,14.4,13.5,13.4,9.3,7.2,4.7,5.5,4.7,6.5,9.1,11.4,13.8
1994,14.5,14.9,13.4,10.3,5.8,5.6,2.9,4.9,6.2,8,10.2,13
1995,14.1,15.2,13.4,8.4,7.9,4.5,2.2,4,6.4,7.9,11,14.7
1996,15.9,14.8,10.9,8.7,5.9,4.5,3.4,3,5.2,8.5,9.9,13
1997,14.3,14,12.4,9,6.1,4.9,4.2,5.4,7.1,9.4,10.6,12.6
1998,13.8,16.4,12.5,9.7,7,4.4,3.7,4.7,5.2,8.2,10.5,14.2
1999,15.1,15.7,13.9,10.5,7.6,5.1,4.3,4.6,4.9,10.1,10.8,16.2
2000,14.2,15.3,14.1,8.9,5.4,4.1,3,5.1,4.9,7.9,10.8,11.9
2001,13,13.7,11.8,9.9,6.4,3.5,3.9,5,5.5,9.6,12.1,13.9
2002,13.3,13.9,12.5,8.7,5.9,3.9,3.4,4.3,7.2,7.6,8.6,13.8
2003,14.1,15.2,13.1,11.1,7.3,3.8,2.9,3,5.9,8.8,11.2,11.7
2004,12,16,11.7,10.1,7.8,5.2,2.8,5.2,6.1,9.1,12.8,14.7
2005,15.4,15.5,13.4,10,7.4,3.8,4.4,3.8,6.2,7.4,11.1,12.1
2006,15.6,16.1,12.2,10.3,6.5,5.2,4.7,5.1,7.5,9.2,11.7,13.2
2007,15.1,15,13.1,10.6,7.3,5.1,3.7,5,6.3,9.4,10.5,14.3
2008,15.7,15.6,13.8,9.8,7.8,6.2,3.8,4.8,4.8,8.9,11.8,13.8
2009,14.6,15.7,13.8,11.3,7.7,6.4,5,5,6.3,9.5,11.4,12.9
