1901,1.8,4.4,7.2,11.4,15,19,18.3,17.3,15.6,12.1,6.4,3.3
1902,3.4,4.8,8,10.2,14.8,18.3,17.8,17.1,15.5,11.3,6.2,3.2
1903,2,4.1,6.8,11.2,15.2,18.3,18.8,17.1,16.1,12.6,7,3.3
1904,2.7,4.5,7.6,10.6,14.6,18.8,18.3,17.5,16.1,12,6.2,3.1
1905,2,2.9,6.1,9.6,14.9,18.8,18.5,16.9,16,12,7.1,3.6
1906,2.3,4.1,6.5,11.2,15.4,18.8,18.9,16.9,16.7,11.8,7.1,3.7
1907,3.3,4.2,5.9,9.9,15,18.3,18.1,17.9,15.9,12.3,6.8,3.2
1908,2.3,4.3,7.5,12.3,15.2,19,18.7,17.7,16.1,12.3,6.5,3.1
1909,2.7,4.2,8.6,10.7,15,18.4,18.7,17.2,16.9,12.5,7.6,3.9
1910,2.7,4.7,7,10.7,14.8,18.4,17.7,17.5,16.3,11.8,6.8,3.5
1911,3.5,4.1,6.8,10.9,14.7,18.7,18.1,17.2,15.7,11.2,6.1,2.8
1912,3,4.8,6.4,9.4,15.1,18.6,18,17.2,16,12,6.5,3.5
1913,2.8,4.5,5.9,10.9,14.4,18.2,18.5,17.5,16,11.9,6,3.1
1914,2.8,4.6,7.1,9.6,15.3,19.2,18.8,17.1,15.7,11.1,6.5,3.8
1915,3.6,4.5,7,10.7,14.7,18.3,18.2,17.4,15.9,13.4,8,3.8
1916,2.8,4.5,8.4,10.7,15.3,19,17.9,17.3,15.9,11.6,7.1,3.1
1917,2.4,4.4,6.6,10.4,15.3,18.5,18.2,17.6,15.9,11.6,7.1,3.5
1918,2.2,4.2,7.3,10.6,16.1,18.3,17.8,16.9,16.1,11.9,6.5,2.9
1919,3.1,4.1,8.3,10.5,15,19.2,18.4,18,15.7,12.1,7.3,3.8
1920,3.2,4.3,6.7,10.3,14.5,18.5,18.9,17.4,15.7,12.3,7.1,4.6
1921,3,4.3,8,10.7,15.3,17.9,18.2,17.5,16.1,11.1,6.7,3.3
1922,3.2,5.1,8.4,12.6,15.9,18.4,18.3,17.5,16.1,11.9,7,3.6
1923,3.1,4.4,8.1,11.2,14.8,18.7,18.4,17.9,16,11.8,7.1,3.7
1924,2.8,4.5,8.7,11.9,14.7,18.8,18.1,17.3,15.5,12.6,6.8,4
1925,2.2,3.6,7.3,10.4,13.3,18.5,17.9,17.3,15,11.5,7.1,2.8
1926,2.8,5,7.1,10.6,14.6,18.1,17.8,17.1,16.1,12.2,6.2,3.7
1927,2.1,3.5,5,10.6,14.8,17.8,18.6,17.5,15.1,12.1,6.6,3.9
1928,2.8,5.7,7.8,11.5,14.9,18.7,18.5,16.9,16.3,11.5,5.8,2.3
1929,1.5,3.9,8.6,11.5,14.1,18.1,18.5,17.2,16,11.7,6.7,2
1930,2.2,4.9,7.5,10.1,15.4,17.5,18.8,17.2,15.6,11.4,6.8,3.5
1931,3.2,5.1,8.1,10.8,14.1,18.6,17.8,18.1,15.3,13,6.5,3.8
1932,3.3,3.6,7.8,11.8,13.7,18,18.5,16.9,16,12.7,8.2,4.2
1933,2,5,8.5,11.1,14.7,18.8,18.6,17.7,16.3,12.4,7.3,4.3
1934,2.4,5.6,7.1,10.2,14.3,17.6,18.4,17.4,16.9,11.3,6.1,4.1
1935,4.7,6.3,9.1,11.6,17.1,20.8,19,17.4,17.8,14.1,9.1,5.1
1936,4.5,2.2,8.3,12.2,16.8,18.5,19.5,18.2,17,10.6,9.8,3.5
1937,4.5,3.5,8.6,12.9,15.3,20.7,20.7,16.7,18.4,13.4,7.7,6.1
1938,4.9,4,9.2,12.6,16,20.6,18,19.3,18.7,13,6,3.9
1939,3.8,5.7,7.4,12.3,15.9,18.6,18.6,17.9,16.1,12.3,7.1,4.6
1940,3.4,5.1,6.1,10.5,15.4,19.6,19.2,18.1,16.5,13.1,7,3.9
1941,2,5.2,9.1,10.5,14.8,16.8,18.8,17.5,17.4,11.1,7.3,6
1942,3.7,6.1,8.6,10.7,15.6,19.7,19.6,18.4,16.4,13.6,9.1,6.5
1943,3.2,5.9,5.9,9.1,16.2,19.8,17.7,18.5,18.1,13.9,12.5,4.7
1944,1.3,3.8,8.4,9.5,15.4,21.7,19.8,19.6,17.5,14.5,9,8.4
1945,3.1,3.1,8.7,11.7,14,19.7,19.2,18.9,17.4,11.3,6.8,2.9
1946,5.4,5.3,7.7,10.4,15.3,20.3,19.4,20.1,18.8,11.2,9.7,6.8
1947,2.4,4.7,7.7,13.5,14.2,20.7,21.2,18.2,19.3,13.2,8.1,7.9
1948,-0.6,3.3,6.4,11.9,14.9,20.5,18.9,18.8,17.6,10.7,10.2,3.1
1949,4.1,5.3,7.4,9.6,15.3,19.9,18.4,18.1,16.1,12.7,6.9,2.2
1950,3.8,4.5,7.6,11.3,16,18,19,17.3,16.6,11.7,6,3.6
1951,2.8,5.1,8.3,10.2,15.3,19,17.7,18,15.9,12.4,8.5,4.2
1952,4.8,5.8,6.3,12.4,16.5,19.1,18.9,17.6,16.5,15.8,10.2,4.1
1953,2.1,5.5,10.2,12.6,16.8,19.1,17.6,19.3,16.9,13.9,8.5,5.4
1954,2.8,7.7,10.4,13.6,16.9,19,16.8,15.6,16.4,14.2,8.3,3.5
1955,3.1,7.1,8.2,10.4,17.9,16.7,17.5,16.5,16.2,14.3,7.4,1.5
1956,2.5,4,7.3,13.1,19,20.3,16.9,16.9,15.8,11.9,7.3,2.4
1957,2.8,3.8,5.6,10.5,15.6,18.5,17.8,17.3,17.3,11.1,7.2,4
1958,1.9,3.3,6.9,12.1,16.3,19.7,18.5,16.4,16.5,14.6,9.4,3.9
1959,3.2,2.4,8,11.9,14.7,17.1,18.5,17,15.3,10.8,7.6,4.7
1960,1.2,4.8,7.4,13.7,17.3,18.8,17.5,16.9,15.7,12.1,8.4,5.3
1961,4.3,6.2,6.7,12.2,14.7,20,17.7,17.6,15.4,13.3,4.5,0.9
1962,2.7,3.2,6.3,11.4,12.4,16.8,17.4,15.4,15.3,12.4,9,3.5
1963,1.7,4.1,5.9,9.6,14.4,17,17.5,16.1,16.2,10.9,3,1.8
1964,5.3,4.5,7.7,11.3,14.4,20.4,17.6,16.5,15.4,14.2,8.2,4
1965,3.2,2.1,4.6,11.6,15.3,18.4,17.4,16.1,15.5,9.4,3.5,3.9
1966,-0.2,5.7,9.5,10.5,17.2,18,18.1,17.1,14.4,9.7,9.8,5.9
1967,4.1,4.6,5.2,9.5,14.6,17.3,19.1,18,16.3,11.3,3.4,1.7
1968,0.2,3.9,6.8,9.8,15.4,17.2,16.8,17.4,16.9,10.2,7.4,3.8
1969,3.5,6.7,7.8,11.5,16,18.1,17.4,17.4,15.9,10.1,8.2,4.9
1970,2.5,3.3,8.6,11.1,17.2,19,16.9,16.6,16.3,11.5,5.7,5.3
1971,3.2,4.2,7.8,11.1,13.1,16.7,17.9,17.2,17.6,12.5,5.7,2.6
1972,4.6,5.6,8.5,10.6,16.1,19.2,19.8,17.7,15.6,13.1,5.3,5.9
1973,4.4,4.3,8.8,12.5,15.7,17.4,19.5,17.2,16.4,11.5,6,4.5
1974,2.5,7.6,7.3,12.4,14.8,18.5,16.8,16.6,15,14.7,8.5,4.6
1975,2.3,3.5,7.7,12,15.2,20.1,18,18.2,14.4,14.2,9.2,3.9
1976,1.8,4.9,7.7,11,14.9,17.3,17.5,18,15.7,10.8,11.2,6.3
1977,4.1,7.5,8.8,9.6,12.2,15.7,17.5,17.4,15.6,8.2,6.1,2.4
1978,-0.4,3.8,6.4,10.7,13.6,17.7,18.5,16.9,15.1,12.4,7,3.7
1979,3.4,3.1,6.7,12.2,19.2,19.7,18,16.7,15.3,10.3,9.3,0.4
1980,0.9,4.1,6.8,12.1,13.3,17.9,17.9,16.9,16.7,10.4,7.5,5.6
1982,2.5,2.3,7.5,10.7,15.2,18.9,19.1,19.1,18.2,11.1,5.3,4
1983,-0.3,1,6.4,8.9,13.8,20.8,21.2,19.5,16.8,13.7,6.9,4.6
1984,3.5,8,10.1,12.3,16.4,18.8,16.4,17.5,15.7,15.4,6.7,6.7
1985,2.3,4.8,10.8,13.1,15.3,18.6,16.8,18.7,15.5,12.3,6.9,4.6
1986,5.3,5.1,7.7,9.5,14.7,21.1,19.9,19.5,15.7,8.7,7,3.6
1987,2,5.2,6.9,10.2,15.5,20.7,19.2,16.2,16.3,12.1,9.6,4.6
1988,4.7,5.8,8.9,11.3,16.8,20.5,18.8,16.6,16,14.2,6.8,4.3
1989,3.4,4.5,8.4,11.9,17,19.6,18.9,16.9,17,12.6,6.8,2.1
1990,5.7,4.2,5.8,9.6,14.3,18.4,18.3,17.1,15.3,12.4,8.8,4.7
1991,0.6,6.8,8.9,11.8,16.1,17.8,18.7,17.3,15.8,14.4,7.4,2.6
1992,1.2,1.8,10.4,11.9,13.8,19,18.9,17.8,17.5,12.6,6.4,-0.3
1993,3.6,5,7.2,10.9,15.7,17.6,19.5,17.6,15,13.5,7.4,5.1
1994,5.1,3.9,6.8,10.7,15.6,19.1,20.5,19.7,17.5,13.6,4.7,2.8
1995,1.9,2.9,9.8,11.1,19.7,21,18.2,17.2,16.6,13.7,8.5,5.8
1996,4.9,4.2,7.6,12.9,15.6,17.2,18.8,18.1,16.1,13.9,6.1,5.6
1997,1.7,3.8,6.9,8,14.7,16.7,19.9,20,14.9,9.8,6.9,4
1998,4.4,3.6,2.2,10.3,18,21.9,18.3,17.2,17.2,14.9,9.9,3.8
1999,3.6,7.8,10.7,13.7,16.1,19.7,18.2,17.5,15.9,13.6,9,3.9
2000,2.9,4.2,6.7,11.6,14.6,19.8,16.9,16.3,15.9,12.6,9.3,5
2001,6.1,7.6,7,10.8,15.3,16.8,18.6,17.8,17.2,12.5,8.6,6.2
2002,3.1,7.1,8.1,11.1,14.1,19.2,18.3,17.7,15.8,11.3,8,5.2
2003,3.8,3.3,5.9,11.6,14.5,16.3,18.1,19.5,16.5,14.2,9.9,5
2004,4.5,4.6,11.6,10.2,16.6,17.8,16.3,18.5,18.1,10.9,6.1,5.3
2005,3.3,6.2,8.9,11.4,13.1,19.7,20.2,18.7,17.7,12.6,9.4,6.2
2006,7.9,9.1,8.3,10,14.9,19.7,20.7,19.8,17.7,11.5,7.2,6.5
2007,7.3,3.5,10,11.9,18.2,19.2,20.2,18.6,17.4,14.4,8.1,6.9
2008,5.2,4.3,8.4,12.4,15.4,17.8,18.9,17.3,17.5,12.2,8.3,6.4
2009,5.8,7,7.9,14.7,16.9,21.7,19.6,19.4,18.6,15.8,10.6,5.3
