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