1901,0.1,1.3,7.7,11.4,15,17.6,17.1,17.2,14.7,12.5,7.3,3.9
1902,3.3,4.6,8.8,11.9,15.8,16.7,16.6,16.6,14.7,10.5,6.5,3.5
1903,1.7,2.1,5.5,10.8,14.9,17.6,17.6,16.5,15.8,11.4,6.6,3.7
1904,0.9,3.5,7.1,13.2,14.6,17.2,16.9,16.2,14.2,10.9,5.7,3.6
1905,-0.3,-0.9,3.6,9.1,15.8,17.5,17.3,17,14.8,11.7,7.2,3.4
1906,-0.4,0.1,5.5,11.8,16.8,16.6,17.5,16.6,14.9,11.8,8,5.2
1907,4.3,0.5,3.8,10,13.6,16,17,16.4,15.8,12.1,7.5,3.1
1908,2.9,3.3,7.8,13.3,15.3,18,17.2,16,14.4,11.1,6.3,3.3
1909,0.3,0.8,8.1,11.2,15.4,16.2,16.5,16.9,14.5,11.7,8.5,3.9
1910,2.4,2.2,7.4,11.2,15.4,16.1,16.1,16.5,15,10.6,5.9,3.1
1911,1.9,2.5,4.7,11.6,16.2,16.7,17.6,17,14.7,11.3,4.8,3.3
1912,2.5,4,6.7,11,14.4,16.8,17.2,16.1,13.6,11.2,5.4,3.4
1913,2.5,1.6,4.8,12.1,13.9,15.4,16.3,16.8,14.4,10.8,5.4,2.7
1914,3.9,1.2,5.8,10.7,14.6,16.9,16.8,16.6,14.8,9.2,6.8,3.2
1915,1.1,0.6,7.1,11.6,17.1,16.5,17.5,16.9,15.7,13.2,7.3,3.1
1916,2.9,2.5,10.3,12.8,15.1,16.9,16.1,16.5,14.6,11.7,6.2,3.1
1917,2.2,3.2,6.2,8.5,12.2,16.1,16.8,16.4,14,10.1,6,3.3
1918,0.6,3.4,6.9,9.7,17,16.4,17.5,16.9,14.3,11.1,6,2.2
1919,1.2,0.2,6.8,10.4,14.1,17.8,17.1,16.6,14,10.8,5.9,2.7
1920,2.1,0.3,5.6,10.8,11.7,15.5,17.3,16.5,14.8,11.4,7.2,4.7
1921,1.5,-1.2,9.9,13.7,17.5,16,16.7,16,14,9.1,6.3,4.4
1922,1.3,4,8.9,12,16,16.7,17.4,17,14.6,10,6.2,2.9
1923,2.2,1.5,7.9,13.4,15,18.4,16.3,16.5,14.3,9.9,6.2,3.8
1924,1,2.3,8.6,12.5,12.2,18.4,17.6,16.8,13.7,11.4,6.3,4.4
1925,0.6,2.2,8.2,13.6,15.1,15.8,16.7,16.4,14.4,10.9,5.4,3.6
1926,2.1,4,5.5,8.7,13.2,17.7,17.4,17,14.7,10.9,4.6,3.7
1927,1.2,0.7,6.3,11.1,13.9,16.5,17.3,16.3,14.8,11.4,6.3,4.8
1928,1.7,3,7.2,11.7,16.7,17.1,17.4,17.3,15.5,12.7,6.8,3.1
1929,1.4,1.1,9.4,12.6,16.2,17,16.9,16.4,15.1,10.7,6.9,2.6
1930,0.1,0.6,8.3,11.3,15.3,16.3,16.6,17.1,15,11,6.4,4.2
1931,3.6,0.8,7.3,13.4,15.4,17.5,16,17.8,14.9,11.9,7,4.4
1932,3.2,1.9,8.2,12.3,14.2,18.2,17.6,16.5,15.5,11.4,7.4,3.3
1933,0.2,3,7.4,9.6,13.4,17,17.3,16,14,11.1,7.2,5.2
1934,0.8,5.1,6.8,12.4,14.7,17,17.4,16.3,16,11.1,6.7,3.7
1935,-0.1,2.6,7.5,8.5,16,17.2,16.8,16,14.8,10.8,6.6,3
1936,0.8,2.1,6.3,10.9,16.8,15.3,16.3,16.3,14.9,11.1,6.5,2.7
1937,1.6,2.2,7.7,10,15.1,17.6,16.8,17.2,15.1,10.1,5.4,2.5
1938,0.1,-0.3,7,12.9,16.7,15.9,17.1,16.9,14.9,11.4,5.2,4.5
1939,2.1,1.5,4.6,10.3,16.4,16.4,17.2,16.8,15.4,11.7,6.9,4.7
1940,2.5,2.5,5.6,10.8,15.6,17.1,17.5,16.3,14.1,11.8,7.5,3.1
1941,1.2,3.5,9.4,14.3,16.4,17.1,17.4,17.3,14.7,13.2,7.1,5.4
1942,1.2,3.3,9.2,12.7,15.5,17.6,16.9,16.1,14.5,11.5,8.2,3.3
1943,1.2,3.3,8,10.4,15.2,16.7,17,16.7,16.1,11.6,8.3,4.7
1944,0.8,0.5,6.6,11,17.2,16.8,17.6,17.2,14.5,11.6,7.3,5.3
1945,-0.1,1.7,7.5,10.2,14.7,17.3,17.3,17,15.4,11.1,7.3,3.1
1946,3.8,5.1,7,12.9,15.2,17.2,17.5,17.7,15.9,11.9,6.8,3.1
1947,-0.6,2.2,8,13.5,16.4,18.5,17.1,17.1,15,10.5,7.6,3.9
1948,1.1,1.1,5.8,13,15.7,17.2,16.5,16.2,15.1,11.3,5.7,3.4
1949,4,1.2,7.8,12.9,15.9,17,16.9,16.9,15.5,11.8,5.9,2.6
1950,2.5,1.3,5.7,10.8,15.4,17.3,16.8,16.5,13.5,10.6,6.6,2.8
1951,0.9,2.2,7.2,9.4,14.8,16.2,17,16.7,15,13.2,7.8,4.9
1952,2.4,4.4,6.5,13.1,15.3,16.5,16.7,16.3,15.5,12.1,7,4.2
1953,0.2,4.4,10.9,13.3,17.1,17.9,17.4,17.4,15.4,11.9,7.6,5.9
1954,1.2,2.9,8.1,13.1,17.2,18.1,17.2,17.4,15.4,9.8,7.2,3.7
1955,2.1,4.4,9.6,11.1,14.6,18.2,17,17.5,15.8,11.4,6.6,5.3
1956,2.6,3.7,8.1,13.5,18.5,17.4,17.2,17.1,16,11.2,6.1,5
1957,2,2.4,7.5,11.1,14.6,16.8,17.8,16.9,15.1,11.6,7.5,4.8
1958,4,3.5,9.3,13.5,15.7,18.3,18.3,17.2,15.8,11.8,8.9,5.1
1959,1.7,1.7,7.9,13.6,15.9,18,17.1,17.4,16.5,13,6.6,4.8
1960,1.7,5.8,7,12.1,17.5,18.2,17.6,18.2,15.8,11.5,5.8,4.6
1961,2.8,2.1,8.8,12.1,16.1,18.7,18,17.6,17.4,11,7.5,2.8
1962,1.9,4,7.7,12.9,16.1,17.5,18.3,17.8,15.8,14.5,7.8,3.8
1963,1.6,4.7,7.4,12.3,14.8,17.9,18.3,16.8,15,12.8,9.4,4.1
1964,1.6,3.4,7.3,12.3,12.4,17.9,16.7,17.4,16.2,12.4,6.3,5.2
1965,4.4,3.2,7.2,11.2,14.6,18,16.8,16,15.5,12.5,8.7,3.3
1966,1.7,5.1,6.7,12.4,14.7,16.3,16.1,17.1,14.2,10.6,6,3.6
1967,1.4,4.6,6.7,11,13.9,17.4,16.8,16.5,15.2,10.1,6.5,4.2
1968,1.4,1.3,7.3,12.4,15,17.6,16.4,16.1,15.5,10,6.3,4.7
1969,2.8,3.9,8.4,12.5,14.4,17.6,16.7,17.2,14.8,12.7,8.1,4.7
1970,2.5,2.3,7.5,13,16.9,16,16.9,16.4,15.6,12.8,5.6,4.5
1971,1.3,2.5,7.7,13.2,14.8,17.1,16.5,16.1,14.3,11.9,7.3,5
1972,3.3,2,8,10.7,15.1,16.9,16.5,16.5,13.5,10.9,7.4,4.7
1973,1.7,3,6.6,12.5,15.1,17,16.6,15.9,15.4,10.7,5.8,2.2
1974,1.3,2,9,12.6,14.5,15.9,16.5,16.4,14.1,11.3,5.4,2.6
1975,0.6,1.9,6.2,11.9,14.9,16,15.5,16.5,15,12.1,5,4
1976,2.3,3.4,7.8,11.4,14.5,15.5,16.7,15.4,13.3,10.3,7.3,4
1977,2.2,2,8.6,12,13.1,16.1,16.6,15.9,14.7,11.2,7.9,4.1
1978,0.1,2.6,5,11.1,17.5,17.8,16.5,15.9,14.8,10.9,6,2.3
1979,0.3,1.1,4.9,13,13.6,16.8,15.9,16.5,13,11.1,9.2,4.6
1980,1.4,4.1,6.3,13,16.4,16.8,16.3,16,14.5,11.6,7,4.6
1981,1.9,3.5,6.3,11.7,15.9,17.5,17,16.4,13.7,9.4,5.2,2.2
1982,3.4,2.1,6.2,11.2,13.4,16.5,16.9,16.4,13.8,11.8,8.1,4.8
1983,1.5,1.1,6.2,9.5,13.3,15.6,16.2,16.7,15,10.8,6.3,4.4
1984,1.6,1.4,7.9,11.2,17,17.6,15.4,15.8,13.5,9.4,5.2,3.7
1985,0.7,3,8.5,11.7,14.8,15.7,15.5,16.3,14.5,10.3,6.5,4.2
1986,1,2.5,6.1,10.8,12.1,16,15.7,15.8,13.1,10.6,7.6,2
1987,1.2,3.8,7.8,11.7,11.6,15.7,17.2,16.3,15.2,11.6,6,3.6
1988,2.8,3.8,6.9,12.9,15.9,16,16.5,15.7,14.5,10.1,6.3,4.2
1989,-0.4,1.8,6.6,9.7,14.9,15.2,15.7,15,13.8,10.2,6.6,3.8
1990,4.1,3,5.3,11,15.9,17.4,15.9,15.8,15.6,9.9,6.7,4.4
1991,-0.1,2.8,7.1,10.1,14.7,16.4,17.5,16,15.2,9.9,6,4.5
1992,3,1.3,8.5,11.6,13.5,16,15.6,16.3,14.2,10.8,6.5,4.6
1993,1.6,4.5,5.9,11.2,15.8,17.4,16.6,16.8,15.3,11.6,7.8,4.2
1994,3.8,3.1,8.3,10.7,15.5,17.6,17.2,16.8,15.1,10.6,6.8,5.5
1995,1,2.8,7.6,11.5,16.8,18.8,17.7,15.9,15.1,12.4,6.9,5.1
1996,2.4,3.3,8.6,11.8,14.8,18.9,16.3,16.5,15.4,11.2,5.8,2.7
1997,1.3,2.2,7.7,11,13.7,16,17.4,16,15.5,9.6,7,2.9
1998,1.7,3.5,5.8,12.2,16,17.8,17.3,16.7,16.3,13,7.3,4.1
1999,3.1,5.5,8.7,13,16.2,16.6,17.7,17,16,12.7,8.2,4.2
2000,2.8,1.8,5.8,13.7,16.6,17.1,17.5,16.7,15.5,12.8,8.7,5.3
2001,2.7,4.3,8,11.9,16.2,16.6,17.7,17.3,15.7,13.2,8.2,6.3
2002,2.6,3.3,7.5,13.4,16.7,17.7,17.6,17.8,14.5,13.1,8.9,5.2
2003,2.1,3.4,6.5,12.6,14.4,18,17.1,16.7,15,11.8,7.1,4.1
2004,3.3,3.7,10.7,13.6,15.6,15.8,16.9,16.6,15.5,10.6,7.6,5.8
2005,2.8,2.3,8.1,11.8,13.9,18.3,16.6,16.8,16,11.9,7.4,2.9
2006,4.4,6.7,7.4,13.4,16.9,17.2,17,17,14.9,12.6,8.8,4.4
2007,1.4,3.2,6.3,14.3,16.3,17.6,17.6,17.4,15.9,12,7.2,4.1
2008,3.2,1.2,10.1,11,15.7,17.9,17.3,15.8,14.6,12.1,8,5.2
2009,3.2,4.9,8.4,12.6,16.4,17.9,17.7,17.2,14.4,12.8,7.9,4.8
