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