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