1901,13,12.8,9.9,8.3,3.1,0.1,-1.1,2.1,4.8,6.4,9.5,11.6
1902,11.4,12.6,10.6,7.2,4.1,-0.9,-0.2,1.4,4.8,7.1,8.8,11.5
1903,13.1,12.1,9.9,6.7,3.8,-0.7,-0.6,2.5,4.8,7.6,8.9,11.5
1904,12.5,11.5,10.1,7.8,3.9,0.4,-0.1,2,5.1,7.3,10,10.5
1905,12.4,11.2,9.2,8.1,3.5,-0.7,0.3,0.9,5.2,7.6,9,11.4
1906,13.4,11.6,9.9,6.5,3.5,0.7,-0.4,1.2,4.9,6.4,9,10.6
1907,11.8,11.9,11,6.3,2.8,-0.4,-0.7,2.3,5.3,6.1,8.5,10.2
1908,11.7,12.1,9.9,5.6,3.2,-0.1,-0.4,1.8,5.7,6.6,9.3,11.4
1909,12.1,10.8,9.4,7.5,3.1,0.2,0.2,2.3,4.7,7,8.9,10.8
1910,11.8,10.9,10,6.5,3,-1.2,-0.5,0.9,4.1,6.4,7.6,10.2
1911,11.7,12.6,10.1,6.6,3,-1.4,-1.3,1.2,4.3,8.5,9.1,11.6
1912,12,12,9.3,7.5,4.2,0.4,-0.6,2.2,4.5,7.4,9.5,11.2
1913,12.9,12.7,9.4,7.1,3.9,0.3,-0.3,2.9,5.7,6.8,10,11.1
1914,13.2,12.1,10.9,7.6,4.7,-0.6,-0.3,1.8,6.1,8.1,9.4,11.7
1915,14.1,12.5,11.2,7.4,3.3,-0.1,-0.6,1.5,5.4,6.5,9,10.8
1916,11,11.7,9.9,7.2,1.8,-0.3,-0.1,0.9,5.2,7.3,9.6,11.4
1917,12,11.6,10.4,6.7,3.1,0.1,-1.1,0.3,4.6,6.5,8.6,10.6
1918,11,12,10.5,6.8,2.4,-0.4,-0.4,1.4,5.8,7.9,9.2,11.2
1919,12.1,12,10.5,8.7,3.3,0.9,0.5,1.7,4.7,7.7,8.7,10.6
1920,13.1,11.4,9.7,6.9,3.7,-1,0.4,2.5,5,7.2,10.2,10.5
1921,11.5,12.3,10.4,6.5,2.7,-0.5,-1.8,1.4,4.4,7.1,9.5,10.9
1922,12.9,11.9,10.6,7.7,2.7,-0.1,0.3,2.5,6.3,8,9.6,11.6
1923,12.3,12,11.6,6.8,3.4,0.3,0.2,2.4,5.7,9,10.9,11.2
1924,12.4,11.2,10.1,6.7,3.3,-0.3,-0.9,1.2,4.7,7,9.3,11.2
1925,12.3,12.9,10.8,7.5,4,-0.9,0.2,2.5,5.5,7.1,10.2,11.9
1926,14.2,13.1,10.4,7.5,3.9,0.6,-0.5,1.9,5.2,7.9,8.8,11.4
1927,13,12.3,10.4,8.2,3.3,0.2,0.5,1.9,6.1,7.9,10.3,11.4
1928,12.3,11.2,10.7,7.7,3.9,0.5,0.3,1.5,5.3,8,10,12
1929,12.5,12,9.5,7.3,4.5,0.8,-0.2,2.1,6.3,8.2,10.3,12
1930,12.2,11.3,11,7.3,3.5,0.2,0.1,1.4,4.2,7.9,9.1,12.3
1931,12.6,13.1,10.8,7.1,4.8,0.4,-0.3,2.5,5.3,8,10.3,11.8
1932,11.7,12.1,10.9,9.2,4.2,1.3,-0.2,2.7,6.5,7.8,10.4,11.4
1934,11.4,11.2,10.6,8.5,5.5,2.3,-0.1,3.5,6,7.6,10,11.3
1935,11.9,10.6,9,7,3.3,0.2,0.3,0.5,4.9,8,9,10.2
1936,11.1,11,10.8,7.4,3,1.1,0.8,3,5,6.6,8.3,10.9
1937,12.3,12.7,11.4,7.5,4.6,0.7,-0.2,2.7,5.1,7.5,10.4,10.7
1938,11.9,11.6,11.3,8.7,4,1.3,1.1,2.3,6.2,8.5,9.5,12.1
1939,12.2,12.8,10.5,7.6,4.3,1.1,0.2,1.9,4.2,8.4,9.3,10.8
1940,12.2,12.7,11.6,6.9,3.9,0.6,-0.6,3,6.5,7.6,9.6,12.7
1941,12.5,12.2,9.8,8.2,4.6,0.6,0.5,2.8,5,9.1,9.7,11.9
1942,13.7,13.6,11.4,8.2,3.5,0.5,0.8,3.5,5.7,7.7,10,11.2
1943,11.7,10.9,10.8,8.2,4.1,0.2,0.5,1.9,4.6,8.2,11,10.9
1944,13,12.3,10.4,6.9,1.9,0.3,-0.2,3.4,5.9,9.2,10,11.2
1945,11.4,13.1,10.4,7.7,2,-1.1,-0.7,1.8,6.8,7.8,11,10.7
1946,12.7,13,11.5,8.8,5.3,0.5,0.4,1.4,6.1,8.2,10.9,11.8
1947,12.2,13.2,10.4,8.6,3.8,2,-1.4,3.2,5,8.8,10.7,11.6
1948,12.6,11.6,10.6,7.2,4.9,0.4,0.4,2.9,4.4,8.3,9.2,11
1949,13.7,11.6,10.8,8.3,3,2.3,0.2,2.9,6.6,8.5,10,12.2
1950,12.4,12.9,13,7.9,4.2,1.8,1.2,3.2,6.4,6.9,9.2,12
1951,10.8,11.9,10.8,8.2,4.4,-0.8,-0.8,2,4.7,8.8,10.5,11.5
1952,12.8,12.6,10.6,7.8,3.7,1.7,1.6,2.6,5.2,8.2,10.9,11.3
1953,13.1,12.7,10.3,6.6,4.8,-0.2,-1,2.7,4.8,8.9,10.1,11.7
1954,11.5,12.7,10.9,7.4,3.9,0.7,-1.6,2,5.5,8.3,9.1,11.2
1955,11.6,11.8,9.9,7.7,4.4,1.3,0.1,1.5,3.6,6.6,8.6,10.7
1956,12.1,12.7,11.4,7.8,4,-0.1,0.6,3.7,4,7.5,10.1,9.9
1957,12.5,13.5,11.2,8.2,3.5,-0.3,1.3,1.8,7,8.1,10.5,12
1958,13.7,12.6,11.1,8.5,5.1,-0.5,0.8,2,5.2,7.7,11.4,11.8
1959,11.6,12.6,10.3,8,2.5,0.4,0.8,2.1,4.1,7.9,10.5,11.9
1960,11.7,12.1,10.8,7.1,2.7,-0.4,-0.6,5.2,6.3,9.7,10.7,12.4
1961,11.9,12.8,11.8,8.5,3.6,2.1,1.7,1.1,6.2,6,10.8,10.6
1962,12.3,12.3,10.5,6.8,2.3,0.3,0.9,3.6,6.9,9.3,10.7,12.7
1963,11.9,11.7,9.2,6.8,2.5,0.7,0.8,2.3,8.4,10,11.1,11.7
1964,12.5,12,12.6,7.1,3.6,-0.4,-0.8,2.1,6.5,8.4,9.5,11.2
1965,12.6,12.6,10.7,7.3,3.6,-1.5,1.3,3.8,7.4,6.5,9.9,10.8
1966,14,11.5,11.2,6.3,3.7,1.8,-0.1,3.5,5.7,8.6,10.1,12.6
1967,12.5,12.2,10.6,7.9,4,1.2,-0.7,2.8,6.6,7.4,10.8,11.7
1968,13,11.3,10.4,5.7,3,-1.7,0.9,3.1,5.4,7.5,9.6,12.3
1969,13.9,13.9,11.4,7.6,3.8,1.1,1.6,3.1,6.4,9.1,10.8,12.9
1970,13.3,12.5,10.7,8.2,5.4,1.3,0.4,2.5,7.4,8.6,10.8,12.4
1971,13.2,12.1,12.4,8.4,4.1,1.3,1.1,2.1,6.9,8.1,9.8,11.9
1972,13.3,11.7,11.2,9.2,3.5,-0.1,1,1.8,5.9,9.3,10.5,12.7
1973,12.9,12.2,13.3,7.9,4.1,0.7,0.5,2.5,5,8.5,10,11.4
1974,13.5,13.6,11.8,7.5,4.2,1.6,1.1,1.5,5.5,8.6,11.1,12
1975,13.4,13.2,10.6,7.4,3.9,1.4,0.3,3,8.7,7.8,10.3,11.3
1976,12.7,13,11.8,8.5,4.5,0.5,0.6,2.7,7.7,8.9,9,12.3
1977,13.9,14.6,10.9,9.6,2.6,0.7,0.4,2,7.1,10.5,11,13.3
1978,13.6,14.1,13.3,8.3,4.5,-0.9,1.2,5,5.9,7.9,11.6,12.3
1979,12.6,14.7,11.7,10.2,5.1,1.1,0.5,4.7,6.1,9,10.1,12.8
1980,12.5,12.9,12.3,8,3.9,0.6,0.6,4,6.4,9.1,10.8,12.5
1981,14.2,13.6,11.1,8.4,5,-0.4,0.3,2.5,4.2,5.4,10.9,12.3
1982,13.6,13.5,11,7.5,4.5,1,1.2,3.1,8.1,9,10,12.1
1983,14.2,12.8,11.7,10.5,4.7,1.8,1.2,1.9,7.1,9.1,11,13.1
1984,13.2,13.2,12.3,6.9,4.5,0.1,1.6,3.2,6.5,9.4,10.3,11.6
1986,13.1,12.6,11.8,10.5,5,1.3,0.8,3.6,7.2,9.2,10.1,12.9
1987,13.9,15.1,12.6,10.2,5.6,0.9,0.2,3.4,7.5,8.5,11.8,13.6
1988,14.1,14.2,13.2,8.1,4.7,0.4,0.3,4.2,6.1,8,9,12.3
1989,13.4,13,11.6,8.6,5.8,0.7,0.6,4.3,4.9,7.5,11,12.3
1990,13.4,12.3,11.5,9.6,4.1,0.4,1,2.9,6,8.4,10.5,12.2
1991,13.9,13.9,11.7,7.7,4.6,1.4,0.8,3.1,7.6,10.2,11.1,11.9
1992,13.9,14.1,11.4,9.7,3.7,-0.7,-0.3,3.5,7.3,8.2,9.6,13
1993,12.9,12.6,11.8,8.6,5.2,1.2,2.7,3.5,7.3,10.5,10.6,12.6
1994,12.8,12.8,11.2,8.7,4.2,0.6,-0.3,3.1,6,7.8,9.6,11.5
1995,13.5,13.2,11.9,7.9,5.1,1.3,0.8,3.7,7.5,8.7,10.9,11.3
1996,14.3,13.5,10.9,8.8,5.7,1.2,0.5,2.3,6.1,10.2,10.3,12.6
1997,13.5,13.4,12.1,7.1,4.3,1.7,1.6,5,8.9,9.5,10.3,12.5
1998,12.9,14.4,12.2,9.8,3.9,0.9,2.2,3.7,7.4,9,10.7,13
1999,14.1,14,12.6,9.6,4.8,1.2,2.4,3.3,5.6,8.5,11.6,13.2
2000,12.8,14,12.5,7.9,4.2,1.6,0.2,4.1,5.8,9.7,10.3,13
2001,13.2,13.3,11.8,9.6,4.9,2.1,1.1,3.5,6,10.2,11.3,12.6
2002,12.8,13,12,9.2,4.6,1.6,0.2,4.2,6.9,8.7,9.3,12.6
2003,13.6,14.4,11.6,9.8,4.2,1.2,0.5,1.7,6.1,8.9,11.1,12.5
2004,11.1,13.9,11.4,8.7,4.1,0.9,0.1,4.3,5.8,8.8,12.3,13.5
2005,13.5,13.9,11.1,8.7,4.9,1.4,0.6,3.7,7.4,9.7,11.4,11.2
2006,14.6,15,10.4,8.5,2.9,0.4,1.5,4,6.8,10.5,11.5,12.9
2007,13.1,12.8,10.4,9.4,3.4,1,-0.1,2.3,7.4,9.2,10.2,12
2008,13.5,12.8,11.3,6.6,5.7,1.9,1.1,2.8,4.8,8.9,11.6,12.9
2009,13,13.5,10.6,7.8,4.6,2.7,-0.2,3.2,6.1,9.3,10.1,12.2
