1901,3.2,0.4,6.2,11.3,14.2,20.1,21,20.9,17.8,13.4,7,4.9
1902,4.3,5.1,8.6,12.8,12,17.4,21.9,20.9,17.9,12.7,6.9,5.3
1903,3.7,5.5,8.6,8.9,14.4,16.9,20.8,21.1,18,14,8.6,5.4
1904,4.8,5.6,7.6,12.3,16.3,20.2,23.3,21.7,16.4,13.2,7.2,5.2
1905,1.7,3.5,7.9,11.6,13.1,18.5,23.1,20.8,18.4,10.5,8.3,5
1906,3.4,3.5,7.2,10.5,14.7,19.2,21.1,21.9,17.6,14.5,9.1,4.2
1907,1.8,2.9,6.9,9.7,14.6,18.8,20.1,21.7,18.5,14.6,9.4,7.2
1908,3.6,5.6,6.5,9.2,16.4,19.3,20.6,20.3,16.8,13.9,7.3,5.1
1909,2.9,2.2,5.7,12.4,14.9,17.1,19.7,21,16.9,14.4,7.7,6.7
1910,4.4,5.5,8.3,10.5,13.3,18.6,19.4,20.2,16.2,13.9,7.2,7.2
1911,2.3,3.9,7.8,10.7,14.7,18.2,22.9,22.9,19.2,13.1,10.2,6.9
1912,5.2,7.2,9.6,10,15.4,18.5,20.6,18.9,14.6,11.9,5.8,5.1
1913,4.7,4.1,8.3,10.4,14.6,19.2,19.1,20.2,17.4,14.2,9.6,5
1914,1.6,6.6,8.3,12.6,14,17.5,20.2,20.3,17.3,12.4,8,6.1
1915,3.7,3.6,7.5,10.6,16.2,19.4,20.7,20.2,16.2,11.7,7,7.7
1916,4.7,5.5,7.8,11.7,15.7,17.9,20.7,20.7,15.8,12.8,9,6.5
1917,2.9,2.5,5.6,9.2,15.7,20,21.2,20.8,19.2,12.3,7.2,3.9
1918,3.4,4.9,7.2,9.9,15.1,16.8,21.1,20.7,19.1,11.8,8.2,5.6
1919,5.3,4.2,7.7,10.3,14.4,19.4,19,21.9,19,11.1,6.2,5.3
1920,6.6,7.2,9.5,11.3,18,18.3,21.3,20,18.1,12.7,7.1,6
1921,6.6,5.3,8.3,10.2,15.6,18.6,22.2,21,18.8,15.8,7.9,4.8
1922,3.1,4.3,9.1,10,16.7,19.1,20.4,22.2,15.7,12.5,6.6,5
1923,3.7,5.8,8.5,10.8,15.2,16,22.8,22.8,17.8,15.1,9.7,5.3
1924,3,4.1,7.6,11.5,16.8,19,21.9,18.9,18.4,13.4,8.8,6.4
1925,5,6,5.7,10.8,14.3,19.6,20.3,20.9,16.5,14,8.4,3.8
1926,2.8,7.2,8.6,12,13.1,16.9,20.6,21,20.3,14.7,11.8,4.6
1927,4.6,4,8.5,12.1,15.5,19.1,21.6,21.6,17.9,13.6,10.1,6
1928,4.9,6.4,7.4,11.5,12.8,19,23.9,23.3,17.9,13.3,9.1,4.5
1929,1.2,-0.4,7.8,10,15.3,19.8,22.1,20.8,19.9,14,9,6.3
1930,5,4.4,8.6,11.1,13.5,20.4,20.9,20.6,18.9,13.5,10.1,5.6
1931,4.4,3.8,7,9.9,15.3,21.3,21.5,20.6,15.3,13.5,9.5,4.2
1932,5.2,1.3,5.6,9.5,13.8,17,19.2,22.7,20.6,13.3,9.6,7
1933,3.3,4,8,11.6,13.8,16,21.7,22.2,18.4,14.5,7.2,2.2
1934,3.3,5.4,7.6,12,16.2,18.4,21.9,19.9,18.5,13.1,7.9,6.5
1935,1.8,5.2,7.6,10.6,12,20.3,22.3,20.3,18.7,14.2,10.1,4.6
1936,7,5.8,9.3,10.5,14.6,18.1,21,21,17.8,10.6,7.8,5.8
1937,3.9,7.2,7.1,11.4,16,19.8,21.9,21.1,17.2,13.7,9.1,4.5
1938,3.1,4.7,10.3,9.5,12.9,19.9,21.1,20.7,17.2,14,9.5,4.5
1939,4.7,6.3,6.2,12,11.6,18.4,21.1,20.8,17,12.5,9.2,4.8
1940,0.8,3.7,8,11.2,14.4,17.3,19.9,20.1,18.2,13,8.9,2
1941,2.2,4.2,7.9,9.9,12.1,18.7,21.8,20.3,17.1,12.7,7.5,4.1
1942,0.4,2.2,8.8,11.4,15.1,19.7,21.8,21.4,20,15.7,7.6,5.5
1943,3,6.2,9.1,13,15.7,19.3,21.8,23.2,19.6,15.7,7.7,6.7
1944,3.9,4.3,7.1,12.7,15.3,18.2,21.3,23.3,17.9,13,7.8,4.2
1945,0.1,4.6,10.3,13.6,16.9,21.5,24.2,21.2,19.1,14,7.6,5.3
1946,3,6.1,7.7,13.1,14,18.3,22.4,21.8,19.6,13,7.9,2.8
1947,0,2.8,7.75,12.65,16.35,20.6,23.25,23.2,19.45,13.8,9.15,4
1948,5.2,4.9,9.9,11.8,15.2,18.6,19.2,20.9,18.1,14.5,8.8,4.5
1949,4.8,5,6,13.4,14.2,18.9,21.9,21.7,20.2,15.4,8.2,5.4
1950,3.3,6.4,9.2,10,16,21,24.1,22.2,18.3,13.9,8.4,4.4
1951,5.8,6.5,7.1,11,13.8,18.7,20.7,21,19.5,12.9,9.8,4.9
1952,3.3,3.6,7.6,12.7,15.6,20.3,23.3,21.5,16.6,12.9,7.2,5
1953,2.1,3.9,8,12.2,16.4,16.9,21.1,20.7,18.5,15,8,8.4
1954,2.3,3.2,8.7,10.7,14,18.9,19.7,19.3,18.5,13,8.8,6.6
1955,6.6,6,6.9,11.6,15,18.4,21.4,20.2,17.8,13,6.5,6.8
1956,5,-0.6,6.8,9.9,15.5,17,20.6,21.9,18.3,12.4,7.2,4.6
1957,3.2,6.8,9.2,11.1,13.2,18.4,21,20.7,17.2,13.4,7.8,5.1
1958,4,6.8,5.9,8.9,16.4,17.9,21,21.7,19.4,14.2,9.9,6
1959,4.5,5.9,9.9,11.7,14.8,18.9,22.2,20.8,17.9,12.8,8.6,6.8
1960,3.7,4.7,8.4,11.4,15.8,19.6,20,20.3,16.6,13.2,9.3,5.9
1961,3.6,7,9.6,13.4,14.9,19.2,21.2,21.5,20.4,14.4,9,5.7
1962,5.8,4.8,5.8,11.4,14.2,18.3,20.9,22.2,18.9,14,7.7,3
1963,1.5,2.2,7,11.5,15.2,17.8,22.2,20.2,17.8,13.3,10.8,4.4
1964,2.5,5.1,7.6,11.9,16.4,20.1,22.4,21,18.2,12.8,9.1,5.6
1965,4.2,2.9,7.3,10.4,14.1,17.8,20.5,19.7,16.1,13.2,8.6,6.1
1966,2.5,7.7,7.9,12.1,15.4,19.6,19.7,19.4,18,15.2,6.3,4.5
1967,3.1,5,9.3,10.7,14.9,17.6,22.3,21.2,17.4,14.4,9.4,4.6
1968,2.8,5.9,8.2,11.8,14.7,17.6,21,19,17.1,14,8.7,4.5
1969,3.1,3.4,7.5,10.7,15.4,16.9,21,20.7,17.8,14.2,9.2,3.1
1970,5.1,5.1,6.4,10.3,13.7,19.3,20.9,21,19.1,13.2,9.3,4
1971,3.7,5,5.1,12.2,14.9,17.3,21.9,22.7,17.5,13.2,8.2,5.4
1972,4.8,7.1,9.1,10.7,13.8,17.6,20.6,19.8,14.9,12.2,8.9,5.7
1973,4.5,4.8,7.2,9.4,14.4,19.3,21.3,22.4,19.2,13.3,8.2,4.9
1974,6.3,7.2,8.5,10.3,14.2,18.1,21,22,17.7,9.5,8,5.5
1975,5.7,5.5,7.4,11.1,14.6,17.5,21.5,21.2,19.1,12.5,7.9,5.4
1976,4.3,6.3,6.7,10.6,15.4,19.6,21.5,19,15.8,13.3,8.3,5.9
1977,4.6,7,9.3,10.6,13.9,17.5,20.4,19.2,16.5,14.8,8.5,4.9
1978,4.7,4.3,8.7,9.7,13.4,17.7,20.2,20.4,18,13.2,6.8,6.2
1979,2.7,5.9,8.3,10,15.3,19.8,21.3,20.8,17.8,13.7,7.4,6.6
1980,4.1,6.2,7.9,9.8,12.9,17,19.2,21.7,18.7,13,8.3,3.9
1981,2.7,4,9.2,11.7,14.1,19.1,19.9,21.4,18.6,13.7,7.8,5.3
1982,5.1,4.5,7.2,10.8,15.2,20.1,23,21.2,20.1,13.3,9.6,6.3
1983,5.2,3.3,8.4,11.4,14.4,18.9,23.7,21.2,19,14.1,8.6,5.1
1984,4.3,4.1,7.1,10.6,12.2,18,21.4,20.2,16.7,13.5,9.5,6
1985,0.7,4.4,7.3,11.7,14.7,18.3,22.8,21.6,19.8,15,7.5,6.9
1986,4.5,3.3,7.9,10.6,17.4,18.4,21.6,22.3,18.6,15.2,9.5,5.5
1987,3.1,4.8,5.7,11.5,13.6,18.1,22.6,21.9,20.9,15,9.2,7
1988,6.4,6.2,8.3,11.7,15.9,18.1,22.5,22.5,18.4,15.7,7.1,5.3
1989,3.8,6.6,10.3,10.8,16,18.3,22.1,22.1,17.8,13.1,7.9,5.6
1990,4.1,8.6,9.8,10.6,16.7,19.2,21.8,22.3,18.6,15,8.1,3.5
1991,4.7,3.6,10.3,10.2,12.7,18,22.8,22.9,20,12.5,8,3.7
1992,4.3,5.6,8.6,11.2,16.9,17.7,21.3,23.1,18.3,12.4,9.7,6.3
1993,4.8,4.8,7.2,11,15.8,20.1,20.5,22.5,17.6,12.9,7.8,6.9
1994,5.6,5.2,10.1,11,15.6,18.9,23.9,23.6,18,13.4,10.4,6.9
1995,4.5,7.1,7.3,11.1,14.6,17.6,23.6,21.4,16.7,15,8.9,6.1
1996,5.8,4.4,7.3,11.8,15.2,19.8,20.9,20.9,15.9,13.4,10,6.2
1997,5.6,7.3,10.3,10.9,16.1,18.8,21.1,22.3,19.8,14.7,9.3,6.3
1998,5.5,7.3,8.5,11,16.2,19.8,22.5,23,18,14.2,7.5,4.5
1999,4.3,4.5,8.7,11.5,16.5,19.3,22.7,22.7,19.8,14.3,8.3,5.2
2000,3.7,6.5,9.1,11.6,17.2,20.9,20.7,22.2,19,14.3,9,5.2
2001,5.5,6.4,10.2,11,16.7,19.5,22.2,23.4,16.6,16.1,8.9,4.1
2002,3.2,7,10,12,15.7,21,21.7,21.2,17.8,14.1,11.1,7.1
2003,4.7,3.6,8.9,11.6,17.6,21.8,24.2,25,18.9,13.3,10,6.4
2004,4.4,5.9,7.8,11.3,14.4,19.9,21.8,22.4,19.4,15.5,9.2,6.5
2005,3.6,3.4,7.7,11,16.6,21.1,23,21.8,18.7,14.4,8.7,3.7
2006,3,5.1,7.8,12.2,16.6,20.2,24.8,21,19.2,15.6,10.4,7
2007,6.9,7.6,9.5,14.1,17.2,19.9,22.4,21.2,17.9,14,8.7,5.5
2008,5.8,6.2,8.8,11.9,16.3,19.9,22.2,22.6,18.1,15,9.2,5.4
2009,4.2,5.3,8.8,12.7,17.7,20.2,22.5,23.7,19.7,14.3,10,5.1
