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