1901,3.1,1.7,2.8,5.9,10,10.8,14.2,12.4,11.5,7.3,4.8,2.3
1902,2.7,1,4.8,6,7.1,10.7,11,11.2,10.9,7.9,6.4,3.9
1903,2.5,5.1,4.1,4.9,8.4,10.4,11.3,11,10.3,7.7,4.9,2.3
1904,3.3,1.7,3,5.9,8.4,11.5,12.6,11.8,10.2,8.1,4.4,3.6
1905,4.1,3.2,4.6,4.7,9,12.6,13.2,11.6,10,6.2,3.9,4.7
1906,3.6,1.3,3,5.1,7.4,11.8,11.8,13,11.3,8.2,6,2.6
1907,3.4,2.1,4.8,5.8,8.4,9.5,11.5,10.5,10.8,7.8,4.7,3.4
1908,3,4.2,3.1,4.4,9.7,11.6,12.3,11.5,10.2,10.6,6.4,4.3
1909,3.6,3.9,1.9,6.3,8.6,10.2,11.7,12.2,9.8,7.7,3.5,1.7
1910,2.2,2.8,5,4.9,9.3,11.7,11.5,12.7,10.7,8.6,2.5,4.8
1911,4,3.7,3.8,5.8,10.3,11.4,13.2,13.8,10.5,7.2,3.8,4.4
1912,2.6,3.1,5.6,6.8,8.9,10.8,11.8,9.7,9,7,4.4,4.1
1913,3.3,4,3.5,5.5,8.6,11.1,12,12.3,10.7,8.8,6.1,3.7
1914,3.4,4.7,3.6,7.6,8.3,11.6,12.7,13.2,10.8,8.8,4.8,1.9
1915,2.4,2.4,3.7,6.2,7.8,11.2,11.5,12.5,10.7,7.8,2.5,2.3
1916,5.6,2.2,1.8,5.9,8.3,9.6,12.4,13.1,10.9,8.1,5.8,2.2
1917,1.1,2,2.6,3.5,9.4,11,13.1,13.3,10.9,5.2,6.1,2.5
1918,1.8,5.2,4.5,5.5,10.3,10.9,12.2,13,8,7.2,4.7,4.6
1919,2.4,1.5,1.5,5.8,10.6,10.7,11.5,12.3,10,7.1,1.7,3.2
1920,3,4.4,4.3,5.6,9.1,11.7,11.2,11.1,10.3,9.4,6.7,3.4
1921,4.8,4.7,4.6,6.8,8.6,11.5,13.4,11.2,11,10.4,4.9,5.6
1922,3,4,4,3.6,9.4,10.4,10.3,10.7,9.5,6.9,5.4,4.3
1923,5.1,4.3,5.1,5.4,6.7,10,12.9,11.5,9.4,7.5,2.2,3.2
1924,4,3.4,2.6,5,8.3,10.7,11.8,11.8,9.9,7.9,6.3,5.8
1925,4.4,2.7,3.7,5.3,8.9,12,13.4,12.5,9.2,8.5,3.5,1.7
1926,4,4.5,4.5,7.6,8.1,11.2,13.2,13,10.9,5.9,4.2,3.9
1927,3.3,4.2,5.3,5.4,8,8.9,12.9,12.8,9.3,8.1,4.6,1.4
1928,3.4,3.9,4,6.1,9.2,9.4,11.7,12.1,9.8,8.3,5.4,3.3
1929,1.4,2,5.7,4.9,9.2,10.4,12.4,11.9,11.5,7.3,5.1,4
1930,3,1.1,2.9,6.5,8.9,12.2,12.2,12.7,10.8,8.1,4,4.2
1931,2.6,2.6,2.3,5.7,9.2,10.6,12.2,11.8,9.8,7.6,6.3,5.5
1932,5.2,4,3.8,4.8,8.5,12.1,12.7,12.8,10.2,6.6,5.1,4.2
1933,2.1,3.1,5.2,7.2,9.4,12.6,14.2,13.3,11.9,8.5,4.7,3.1
1934,4.3,5.1,3.1,5.2,8.5,11.8,14.1,12.5,11,7.8,4.7,5.8
1935,4.1,3.7,5.2,5.8,8.8,11.5,13,13.4,10.7,7.5,4.8,1.9
1936,2.1,2.2,4.8,5.1,9.3,11.7,12.8,13.1,11.4,8.1,5,4.4
1937,3.6,2.5,1.3,6.7,9.5,11.5,12.4,12.9,10.6,8.1,5,1.9
1938,3.7,3.8,6.9,6.6,8.5,10.6,11.4,12.6,10.9,8.2,6.1,3
1939,1.7,4.5,4.5,6.1,9.1,11.7,12.1,13.3,11.5,7.1,5.8,3.6
1940,0.4,2.2,3.8,6.4,10.2,13.5,12,12.5,9.5,7.8,5,3.6
1941,-0.1,1.8,3.1,4.9,8,12.1,13,11.9,12.1,8.7,5,5.1
1942,2.1,1.8,2.9,7,8.8,10.8,12.1,13,10.2,7.7,4.8,5.4
1943,3.3,5.1,5.5,7.4,8.9,11.5,12.6,11.9,10.2,9.1,5.1,4.2
1944,4.8,3.1,4.4,7.6,8.7,10.9,13.4,13.3,9.8,7.5,3.8,3.6
1945,-0.1,5.1,7,7.2,9,11.3,13.2,13.2,11.7,9.8,6.8,5
1946,3.2,4,4.4,7,9.4,10.8,12.3,11.4,11,7.8,5.5,3
1947,2.2,-1.5,0.7,5.7,9.8,11.3,12.7,14.9,11.1,9.5,4.9,3.9
1948,2,3.6,6.5,6.9,8.9,11,12.3,11.9,10.6,7.9,6.6,5.1
1949,3.9,4.7,4.3,7.3,8.8,11.8,13.1,13,12.1,9.6,5.5,3.7
1950,4.3,2.5,5.9,5.1,9.5,12.1,12.7,12.8,9.9,7.8,3.7,0.9
1951,2.2,1.9,2.3,4.3,8.2,11,12.6,11.9,11,9,6.2,4.3
1952,1.2,3.3,4.8,7.4,10.3,10.5,12.6,12.4,8.6,7.2,3,2.8
1953,4.1,4.3,5.5,4.8,10,12.1,12.4,12.8,11.5,9.2,6.9,5.7
1954,3.1,2,4,6.5,9.6,11.2,11.3,11.9,9.5,8.4,5,4.9
1955,1.1,0,2.7,7.4,7.8,11.3,14.2,14.35,11.65,7.55,6.05,3.4
1956,2,1.5,4.8,5.3,9.6,10.6,12.4,10.7,11.1,8,6,5.1
1957,4,2.8,6.5,7,8.7,11.9,12.4,12.5,9.6,8.7,5.6,4
1958,2.1,2.3,2,5.8,8.5,11.5,12.5,12.5,12.4,9.3,6.2,3.3
1959,0.9,4.5,5.5,6.8,10.8,11.9,12.8,13.5,11.9,10.3,5.9,4
1960,2.8,1.9,4.1,7.4,10.4,12.9,12.5,12.2,10.6,8.4,5.2,2.7
1961,2.5,5,6.8,7,9.1,11.2,11.6,11.9,11.3,8.5,4.1,1.3
1962,3.2,3.6,1.5,5.5,8.2,11.1,11.8,11.5,9.9,9.2,4.6,3.3
1963,-0.9,-0.3,4.2,6,8,12.2,11.8,11.2,10.2,8.8,4.9,3
1964,4.4,3.7,3.7,6.7,10.1,10.8,12.1,11.5,10.6,7.6,5.8,2.8
1965,1.8,3,3.4,5.8,8.9,11.7,10.9,11.7,9.9,8.8,2.9,2.5
1966,1.8,2.5,5,4.2,8.4,12.2,12,11.4,11.5,7.4,3.5,3.2
1967,3.6,4.3,4.6,6.1,7.9,11.4,12.2,12.4,10.9,7.4,4.9,3.8
1968,3,0.7,4.4,6,7.2,11.7,12,12.6,10.9,9.5,4.8,3.4
1969,3.3,0.2,2.2,5.4,8.3,11.5,12.7,13.3,10.9,10.6,2.5,3.2
1970,2.7,1.2,2.6,4.5,9.8,13.1,10.9,12.7,10.6,8.1,4.7,3.8
1971,4,4.2,4.4,6.2,9.3,10.2,12.6,12.4,11.5,9.4,5,6.1
1972,2.7,3.3,4.3,6.3,8.9,9.6,12,11.5,9.4,9,4.3,4.4
1973,3.9,3,5.1,5,8.4,11.2,12.6,12.8,10.6,7.4,4.3,3.3
1974,4.6,4.2,4,6.8,9.1,11,11.6,12.2,9.4,6.8,4.5,5.3
1975,3.8,4,3.2,6,8.2,11.5,13.2,14.1,10.1,9,5.2,5.4
1976,3.9,3.8,3.9,6.8,9,12.4,14.1,13.6,10.7,8.1,4.8,1.6
1977,1.9,2.1,4.9,5.1,8.7,10.2,13,12.3,9.9,9.6,4.1,4.5
1978,1.7,0.5,4.5,5.1,9.8,11.2,11.7,12.4,11,9.7,6.3,3.4
1979,-0.1,0.8,2.3,5.3,7,11.7,12,11.6,10.3,9.3,4.6,3.7
1980,2.1,3.6,3,7,9.8,11.6,11.9,12.8,11.7,7.1,4.9,4.5
1981,3.3,3,4.4,6,9.6,10.7,12,12.9,11.3,5.5,5.4,0.3
1982,1.6,4,4,6.8,8.7,12.1,13.4,12.6,10.3,8.4,5,2.9
1983,4.1,1.4,4.9,4.3,8,10.9,14.1,14,10.1,8.1,6,4.7
1984,0.8,3.5,3.4,6.7,8.4,11.8,13.3,13.9,10.2,8.2,5.3,4.4
1985,0.2,2.6,2.9,6,8.6,10.3,12.2,11.7,10.3,9.1,2.3,3.9
1986,2,-0.7,3.6,4.1,8.4,11.6,11.8,10.6,9.4,8.6,5.5,3.5
1987,1.1,2.6,2.4,7,8.4,9.8,12.6,12,10.2,6.9,5.3,4.2
1988,2.7,3.4,3.9,6.3,9.7,12.3,11.9,12,10.5,7.9,5.2,6.2
1989,6.1,3.9,4.3,4.6,9.4,11,13.9,12.6,10.4,8.9,4.9,2.1
1990,4.3,4,5.9,5.9,9.7,11.3,13,13.1,9.9,8.8,4.9,3.5
1991,2.5,2.1,5.2,6.2,9.3,9.9,14.2,13.6,10.9,7.9,5.1,4.8
1992,4,4.7,4.9,6.3,10.3,12.8,12.5,12,9.8,6,4.7,3.3
1993,3.4,5.2,4.8,6.7,8.7,11.4,11.6,11.5,10,6.6,4.4,2.6
1994,2.8,2.2,4,5.7,8.6,11,13.2,12.2,10.2,8.2,7.9,4.5
1995,2.7,3.3,3,6.3,8.7,11.6,13.8,14.5,10.8,10.2,6.4,1.9
1996,4.3,2.6,3.4,6.6,7.3,11.5,12.4,13.1,11.6,9.2,3.9,2.9
1997,2.8,4.1,6.1,7.5,9.1,11.3,13.5,14.7,11,8.6,7.4,5
1998,4,6.4,5.4,5.4,9.7,10.9,12.3,12.5,11.6,7.7,5.1,4.9
1999,3.5,3.3,4.9,6.9,9.7,10.9,13.1,12.7,12.2,9.2,6.1,2.9
2000,3.9,4,5.6,5.6,9.6,11,12.7,13.2,11.8,8.5,5,4.1
2001,2.7,2.8,3.1,5.6,10.2,10.8,12.5,12.9,10.9,10.7,6.2,3.6
2002,5.1,4,5.3,7.3,9.8,12,12.1,13.5,11.7,7.5,6.8,4.2
2003,3.3,3.8,5.8,8.3,9.3,12.9,14.3,14.1,11.2,7.5,6.7,4.4
2004,3.7,3.7,5,7.5,10,12.2,12.6,14.3,11.5,8.2,6.5,5.3
2005,4.7,3.3,5.7,7,8.7,12.2,13,13,11.7,10.3,5.4,4.7
2006,4.3,4,3.2,6,9.2,12.5,14.5,13.2,12.8,10.4,6.2,5.4
2007,4.5,4.6,5.3,8.3,9.1,12.3,12.8,12.5,10.8,9.9,6.4,4.6
2008,3.9,4.7,4.1,6.1,11.3,11.5,13.6,13.6,11,7.5,5.5,3.4
2009,3.3,3.7,5.1,7.8,9.7,12.6,13.6,13.4,11.6,9.3,6.1,2.6
