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