1901,11.4,12.6,9.3,7.7,3.1,1.8,0.1,2.2,2.7,5.3,7.6,9.3
1902,9.9,12.3,10.5,6.2,4.6,0.5,1.1,1.2,2.2,6.1,7,9.9
1903,11,11.8,10.3,5.8,3.1,0.1,-0.1,1.2,3.7,4.9,7.5,10
1904,10.6,11.7,10,7.3,3.6,1.4,1.2,1.7,3.2,5.8,8.1,8.4
1905,11.2,11.6,9.9,7.6,2.5,-0.2,1.5,0.2,3.5,6.4,8,9.9
1906,11.8,11.6,9.8,5.9,3.3,1.8,-0.2,0.4,3.2,4.9,7.9,9.1
1907,10.1,11.8,10.6,6.3,1.7,0.4,0.8,2.1,3.7,4.8,6.7,8.6
1908,10.2,12.1,9.9,4.8,3.3,0.2,0.8,1,3.5,5.4,7.5,10
1909,11.3,10.4,9.4,7.5,3.1,1.7,0.5,1.3,3.8,5.5,7.8,8.7
1910,10.8,11.1,10,6.4,3.4,0.3,0.7,1,3,5.2,6.4,9.4
1912,11.3,12.2,10.2,6.9,3,1.3,0.5,1.2,2.5,6.5,8.6,9.7
1913,11.7,12.1,10,7.5,3.5,1.8,-0.1,2.4,2.9,5.7,8.4,10
1914,12.1,12.1,10.4,7.2,4.5,0.6,0.8,1.5,4.6,7.2,7.2,9.3
1915,12.4,12.5,11.2,6.4,3.1,0.8,-0.8,2,3.8,5.9,8.4,9.8
1916,10.8,12.5,10.3,7.6,2,0.1,1.5,1.3,3.9,6.6,8.7,10.1
1917,11.1,12.5,10,6.6,2.2,-0.1,-0.4,0.2,3.1,5.9,7.4,9.7
1918,10.2,12,10,7.7,2.9,1,-0.3,2.1,4.1,6.7,8.1,9.9
1919,11.6,12.5,11,8.3,3.6,1.7,0.7,2.2,2.9,7,7.6,10.4
1920,12.4,12,10.1,7.9,3.8,0.7,1.8,2.4,3,6.1,9.8,9.5
1921,10.6,12.7,11.2,6.8,2.9,1,-1,1,3,5.9,7.7,9.3
1922,11,11.8,11.2,8,2.9,0.4,1.2,1.1,4.4,6.6,7.3,10
1923,11,12,11.1,6.3,2.6,0.6,0.3,2.3,4,8,9.2,10
1924,11.3,11.5,9.4,7.3,2.8,0.8,0.3,0.9,3.4,5.7,7.7,10
1925,10.8,13.1,10.1,6.9,2.7,-0.2,0.6,3,3.5,5.8,8.4,10
1926,12.8,13.4,10.7,7.4,3.4,1.2,-0.9,1.5,3.1,6.1,7.1,9.7
1927,12,12.3,10.1,7.5,3.2,1.3,1.5,2.5,5.2,6.9,9.4,10.1
1928,11.3,11.8,10.7,7.5,4,0.9,1.9,2.1,3.7,6.2,8.2,10.2
1929,11.5,12.3,10,7.4,4.3,1.4,0.4,2.2,3.7,6.9,8.8,10.3
1930,11,11.4,10.5,7,4.7,1.1,1.2,1.8,2.7,7,9.2,11
1931,12,13.2,11.9,6.4,4.7,1.3,0.1,2.3,4.1,6.3,9.4,10.3
1932,10.7,12.6,11.5,10.2,5.6,1.5,1.2,3.4,4.1,6.9,9.1,9.8
1933,12,12.7,11.4,8.3,4.7,0.5,1,1.6,4.5,7.5,8.6,10.3
1934,10.6,11.9,10.6,9.3,6.2,3.6,0.2,3,5.2,6.7,8.8,9.8
1935,11.9,12.1,9.4,7.1,2.7,1.2,0.6,1.3,3.3,7.2,7.2,9
1936,10,11.3,11.5,8.2,3,2.8,2.1,3.7,4.2,5.8,7.4,9.9
1937,11.6,13.6,11.1,7.8,4.7,1.3,1.1,3.8,3.5,7.1,9.5,10
1938,11.3,11.8,12,7.9,4.2,2.3,2.1,1.3,4.8,6.8,7.7,10.2
1939,11.7,11.9,10.7,7.1,4.4,2.4,1.1,1.9,3.9,7,8.6,10.5
1940,11.3,13.1,10.2,6,3.6,1.5,0.9,3,5,6.8,8.5,10.8
1941,12.4,11.9,10.5,8,5,2.6,1.7,3.4,3.3,7,7.8,10.4
1942,12.4,13.3,10.5,7.2,4.7,1.8,1.1,1.9,3.7,7.5,9.3,9.8
1943,10.6,11,11.8,7.8,3.6,1.4,0.9,1.1,4.1,6.3,8.9,9.6
1944,12.2,12.4,11,6.7,2.5,1,0.9,3.7,3.9,8.1,8.8,8.8
1945,11.2,14,10.4,8.2,3.8,2,1.9,3.1,5.9,6.2,9.6,9.3
1946,11.8,11.9,11.3,7.7,5.4,0.8,1,2.5,5.2,5.8,8.5,10.5
1947,12.2,13.3,11.5,7.5,4.4,1.5,0.1,2.6,4.6,7.3,9.4,9.7
1948,11.4,11.4,10.5,7.5,4.9,1.1,1.3,1.8,2.3,6.3,7.8,9.7
1949,12.4,12,10.8,7.6,4.6,1.9,1.5,2.4,4.7,6.4,7.7,10.6
1950,11.5,13,12.8,7.6,4.7,2.5,1.2,3,4.5,5.5,7.9,8.9
1951,9.5,11.5,9.3,6.8,3.9,0.6,-0.7,1.1,2.3,6,7.6,9.8
1952,11.6,12.4,9.5,7.4,3.3,1.3,1.4,1.5,3.6,6.9,9.2,9.8
1953,12.8,12.7,10,6,4.3,0.7,0.4,2,4.3,7.2,9,11
1954,10.8,12.2,10.9,6.6,4.7,0.7,-0.6,1.5,3.9,5.5,8,10
1955,11.4,10.7,9.9,5.9,4.6,1.5,0.2,0.7,2.4,4,6.4,9
1956,12.4,11.8,10.8,5.8,2.6,0.5,1.8,1.6,2.2,5.6,8.8,9
1957,12.9,12.7,10.7,6.1,2.8,0.4,1.3,2.3,4.2,5.2,8.2,11.1
1958,12.3,11.2,9.9,7.9,3.3,-0.8,0.8,0.9,3.4,5.3,8.2,11.1
1959,10.5,11.8,10,7.1,3.8,1.2,2.5,2.4,3.9,6.1,8.6,9.9
1960,11.5,11.8,10.9,6.1,4.5,2.6,0.8,4.5,6,7.9,10.4,11.6
1961,12.4,12.8,13.1,8.5,4.1,3.5,2.3,3.3,5.8,5.2,10,9.8
1962,12.2,12.4,11.6,7.8,3.6,2.9,1.8,3.6,4.9,7.4,9.6,11.9
1963,13.4,12.7,10.8,7.6,4.9,2.1,2.3,2.8,6.2,9,11.1,11.2
1964,12.2,11.7,12.8,7.2,4.6,1.8,1.2,2.5,4.8,7.7,8,10.3
1965,12.5,12,11,8.6,4.3,0.2,3.1,4.6,6.7,6.9,9.1,8.7
1966,14,11.2,11.6,6.8,4.5,2.5,2.3,3.9,4.9,7.1,9.6,12.4
1967,12.3,13.3,11.8,9,5.1,3.7,0.8,3.3,3.8,6.5,9.7,10.6
1968,11.9,10.5,11.1,6.9,4.9,1.1,1,2,4.1,6.7,8.6,11.2
1969,12.6,13.3,12.4,7,4.8,2.5,1.8,3.6,4.7,8.2,9.2,11.2
1970,13.1,12.8,10.9,7.4,6.3,2.5,1.6,2,5.7,7.9,8.2,10.7
1971,12.7,13.1,11.4,7.9,4.9,3.1,4,2.1,3.5,6.8,7.9,10.5
1972,13.8,11.9,11.9,6.9,4,2,1.3,1.3,4.9,7.1,9.6,9.8
1973,11.7,12.1,12.4,8.9,3.8,2.2,2.2,2.7,3,6.8,8.8,10.7
1974,13.9,14.1,12,8.5,5.9,2.7,2.3,3.4,4.7,5.7,9.7,9.9
1975,11.1,12.3,9.4,6.8,3,2.2,2.1,1.9,6.8,5.1,8.1,10.5
1976,12.7,12.8,12,8.5,5.4,2,1.5,0.9,5.3,7.4,6.4,10.4
1977,11.7,15.1,9.9,8.8,4.6,2.5,0.8,1.9,5.4,7.2,9.5,12.1
1978,11.6,12.1,12.8,6.9,4,-0.1,2,2,4.2,4.2,8.7,10.7
1979,11.2,13.2,10.1,8.6,5.2,2,1.7,4,4.2,6.9,9.1,10.5
1980,10.9,12.5,12,6.6,3.3,1.4,0.1,4.3,4.1,5.7,8.5,11.4
1981,12.3,13.2,9.3,7.8,5.7,1.1,0.6,2.2,3.2,5.4,8.7,10.3
1982,11.3,12.4,10.3,7.1,3.4,1.9,2.2,1.3,6.5,7.5,7.5,9.8
1983,12.7,11.1,10.2,8.7,4.1,3.1,2.3,2.1,6.1,8.7,10.2,12.7
1984,12.6,12.9,12,6.9,5.2,2.8,1.2,2.5,5.1,7.1,8.7,9.7
1985,14.1,13.4,9.3,7.5,3.5,1.7,0.9,3.5,5.9,9.5,11.7,11
1986,12.9,11.3,10.3,7.6,4.6,2.5,0.6,3.1,5.5,8.2,8.5,10.8
1987,11.8,13.6,11.2,7.7,5.4,1.9,0.8,2.8,5.4,7.3,9.4,11.1
1988,12.7,13.7,12.3,7,5.4,1.4,1.5,4.1,4.5,6,9.2,10.3
1989,12.8,12.6,10.7,7.9,4.4,-0.4,0.4,3,3.6,5.7,9.8,11.1
1990,12.4,10.9,10.3,7.7,3.2,0.5,0.4,3,4,5.3,6.9,10.2
1991,12.3,12.8,10.3,8.8,4.6,1.2,1.2,1.8,5.1,8.4,9.6,11.2
1992,12.5,13.3,10.9,9.3,4.4,1.8,2.1,3.3,3.9,6.2,7.9,10.1
1993,11.8,11.3,10.1,6.6,4.6,2.1,1.7,1.9,5.6,7,9.7,11.1
1994,11.7,12,10.5,7,4.2,0.7,-0.9,1.6,5.4,4.8,7.7,9.4
1995,11.7,12.5,10.5,5.1,3.2,0.7,-0.9,2.5,5.3,5.2,9.2,9.7
1996,13.1,12.7,9.5,7.7,4.4,1.8,-0.9,1.3,4.2,6.6,8.1,10.8
1997,12.8,11.7,9.5,5.6,4.1,1.5,1.6,3.3,5.2,7.1,8.4,10.5
1998,10.8,13,10.9,7.3,3.9,1.2,0.3,1.9,4,5.9,8.3,10.4
1999,13,12.8,11.3,7.5,4.1,2.7,2.5,3.7,3.8,7.4,9.3,12.8
2000,11.5,14,12.7,7,4,1.8,-0.8,2.8,3.3,6.1,9.2,9.6
2001,11.2,11.4,9.6,7.9,3.6,2.8,-0.5,1.4,4.6,7.9,9.6,10.4
2002,10.6,11,9.7,7.7,3.3,1.9,0.8,3.9,5.4,7,7,11.4
2003,12.2,13.7,11.5,9.3,4.9,1.5,1.2,1.5,4.8,7.6,9.5,10.5
2004,11.3,13.8,10.9,8.9,4.6,2.5,0.3,3.3,3.4,7.6,10.9,11.2
2005,12.4,12.7,10.7,6.7,4.5,1.1,1.1,2.3,4.8,7,8.7,9.2
2006,12.9,13.7,9.5,7.7,2.6,1.2,1.5,2.8,4.8,7.3,9.5,10.8
2007,13.1,13.5,10.8,8.2,4,2,0.9,3.1,5.8,7.2,8.8,11.3
2008,12.6,13.1,10.5,6.3,6.3,2.3,1.7,3.7,3.2,7.5,10.2,11.1
2009,12.6,13,11.1,9,5.6,3.5,2,3.9,4.5,7.8,8.1,10
