1901,1.9,3.6,5.8,9.1,12.4,16,16.5,15.6,14.1,11,6.2,2.4
1902,2.5,3.3,6.7,8.1,12.6,14.7,15.9,14.9,13.8,10.1,6.1,2
1903,0.9,3.1,5.8,9.1,11.5,15.3,16.3,14.6,14,11.5,6.2,2
1904,1.2,3.9,5.3,8,11.4,15.5,15.9,14.9,14,11.2,5.6,1.2
1905,1.7,4.1,3.7,7.1,12.3,16,16.2,14.2,14.5,10.9,6.2,2.3
1906,1.6,3.1,4.5,7.5,11.9,15.9,16.6,14.3,14.8,10.9,6.2,2.2
1907,2.3,3.1,4.6,7.7,11.8,15,15.5,15.5,13.4,11.5,6.8,2.1
1908,2.1,3.6,5.9,9.5,11.9,15.9,15.8,15.3,13.8,10.8,6,1.8
1909,1.4,3.7,6.8,8.5,11,15.4,16.2,15,15,12,7.5,2.8
1910,2.1,3.6,5.4,8.7,12.8,15.1,15.2,15,14.2,10.6,6.4,1.9
1911,2.4,3.1,5.4,8.7,11.6,15.9,15.6,14.9,14.1,10.4,6,1.9
1912,1.5,3.6,5.4,7.7,12.5,15.7,15.4,14.8,13.5,10.4,6.1,2.1
1913,1.6,3.7,4.4,7.8,10.4,15.3,15.9,14.9,13.7,10.8,5.4,1.4
1914,2.1,3.5,6,8.2,12.1,15.9,16.6,14.2,13.7,9.9,5.8,2.8
1915,2.6,4.3,5.9,9.5,11.5,14.9,15.3,14.6,13.7,13,7.5,3.1
1916,2.5,4.3,6.5,9.4,12.8,16.8,16.9,16.4,15.4,12.1,8.1,3.5
1917,1.4,2.8,5.6,8,12,16.5,16.7,16.7,15.3,12.2,8.6,1.5
1918,1.7,3.5,6.7,8,13.1,16.1,17.1,16.4,15.2,12.6,5.7,2.7
1919,2.9,4.1,7.3,9.2,12.6,17.1,17,17.2,13.6,11.6,8.3,3.5
1920,4,3.6,7.6,8.1,11.6,16.1,17.9,15.5,15.7,11.5,5.5,3.3
1921,3.7,3.4,6.9,10.4,13.3,17.1,17.3,17.4,14.5,10.4,7.3,4
1922,3.8,4.2,8.2,10,13.8,16.8,17.1,16.7,15.5,11.3,7.5,3.1
1923,2.7,5.5,6.7,9.8,12,15.5,16.5,16.3,14.9,11.4,9,4.7
1924,3.1,5.4,7.1,10,13.1,16.9,16.9,16.7,15.2,13.2,7.7,4
1925,1.6,3.5,5.9,9.8,12.1,16.7,16.8,17.2,14,10.8,6.7,2
1926,3.9,4.3,6.9,8.2,12.7,17,17.9,17.6,16.3,12.5,7.6,5.1
1927,3.8,5.2,5.9,9,13.1,17.8,18.1,17.3,15.1,12.5,6.7,3.2
1928,3.7,5.3,7.8,9.9,12.9,16.2,17.9,17.1,15.1,10.8,5.8,4.3
1929,4.3,4.5,6.6,9.3,13.6,17.4,17.6,17.9,16.1,12.5,7.4,3.6
1930,2.7,4.6,5.9,9.6,14.2,16.8,18,17.7,15.1,11.9,9.3,3.7
1931,2.1,5.6,6.2,10.5,13.9,16.7,16.9,18.1,14.8,13.2,6.8,4.6
1932,2.8,2.8,5.3,9.6,13.3,17.4,17.4,17.4,15.7,12.7,8.6,4.3
1933,3.6,5.1,6.7,9.3,13.6,16.8,17.5,17.3,15.9,13.6,7.3,3.5
1934,2.2,4.2,6,9.8,12.6,16.4,18,17.3,16.2,12.1,7.2,2.7
1935,0.6,4,7.1,9.2,12.9,16.2,17.8,14.9,14.7,12.5,7.6,2.2
1936,1.1,3.7,6.2,9.7,12.6,16.3,17.7,16.6,14.4,10.5,6.8,3
1937,0.6,4.9,5.9,10.2,12.7,16,17.5,16.7,15.8,12.2,6,5.4
1938,3.2,4,7.5,10.1,13.2,16.5,16,16.7,15.5,12.3,4.3,3.4
1939,2.9,4.2,7.4,8.7,11.9,15.2,16.6,15.6,14.2,10.6,6.2,2.3
1940,0.2,4.4,5.1,8.3,11.4,15.4,16.8,16,14,10.5,5,3.6
1941,1.8,3.6,6.7,9,11.4,14.8,16.5,15.7,13.2,9.8,5.3,4.5
1942,3.1,6.2,7.1,9.1,11.7,14.9,16,14.6,13.4,11,7.4,3.1
1943,2.9,2.3,7,8.7,11.9,15.3,15.8,13.9,13.1,10.7,6.3,3.4
1944,4.3,5.5,7.4,9.2,10.3,14.6,16.3,14.9,13.6,11.9,5.9,1.3
1945,3.1,1.2,6,10.1,10.8,16.6,16.4,15.9,14.9,10.1,5.5,1.9
1946,3,4.8,7.1,10.3,12.8,16.1,15.9,16.2,14.5,10.7,6.7,5.5
1947,2.6,4.6,6.6,9.1,13.6,15.9,17.1,16.1,15.1,11,5.1,3.8
1948,2.6,4,7.1,9.4,11.7,16,15.7,15.2,14.1,8.6,6.7,1.2
1949,1.5,3.7,6.7,8.8,11.5,16,15.8,15.4,14.3,11.1,7.2,1.7
1950,2.1,1.6,6.7,8.9,12,14.9,15.5,14.7,14,11.2,5.9,1.9
1951,0.9,3.8,6.8,9.1,11.4,15.3,16.3,14.9,12.6,11.1,5.6,3.5
1952,1.8,4.2,6.5,9.5,13.2,15.6,16.1,15.5,14.6,12.8,6.5,1.6
1953,3,3.8,7.4,9.7,12.4,15.2,16.6,16.4,14.2,10.8,6.2,3.5
1954,1.1,4.2,5,10.1,13.4,16.1,16.2,15.7,15,11,5.4,3.7
1955,1.8,3.6,7,8.6,12.6,15.5,16,15,14.7,11.2,6.4,0.9
1956,0.3,3.4,6.8,9.2,13,15.6,15.5,15.4,13.3,10.3,6.3,3.3
1957,2.9,3.1,5.7,9.8,12.4,15,16.5,14.8,13.9,9.6,4.8,2.2
1958,2.6,3.4,7.4,10.3,13.6,16.4,16.6,15.5,14,11.2,5.4,2.5
1959,1.8,3.7,5.4,9.4,12.1,15.6,16.2,15.9,13.9,11.7,4.9,2.8
1960,2.2,3.7,6.9,9.8,12.7,15.5,16.7,16.3,14,10.4,5.7,2.3
1961,2.3,3.9,6.6,8.5,12.3,16.1,16.9,16.4,14.4,12,5.5,1.5
1962,0.3,3.4,5.2,9.6,12.2,15.8,16.9,15.6,14.3,10.8,4.7,2
1963,-0.5,2.9,4.9,8.7,12.4,15.4,16.7,15.9,15.1,10.3,5,2
1964,2,3.7,5.3,9.2,12.9,15.4,16.2,15.4,14.9,12.4,6.9,1.5
1965,0.8,3.1,4.2,8.9,12.5,15.5,16.5,15,14,10.7,4.8,4.1
1966,2.7,3.6,6,9.4,12.6,15.3,16.8,15.9,13.6,9.9,7,2.9
1967,2.6,2.8,5.4,7.3,12.1,15.1,16.5,15.8,14.3,9.4,4.8,1.8
1968,1.6,1.3,5.9,7.8,11.2,15.1,16.1,16,14.8,10.9,5.5,2.3
1969,1.1,2.9,6.6,8.1,13,15.2,16.6,14.8,13.1,10,5,1.8
1970,1.3,4.1,6.9,8.2,12.6,15.4,16.2,15.5,13.8,10.6,6.4,2.7
1971,0.9,2.2,5.7,9.1,11.7,16.3,16.4,14.9,14.5,11,4.7,1.8
1972,1.9,3.5,5.6,7.5,11.2,15.9,16.7,15.3,13.5,9.9,5.8,2.6
1973,2.1,4.9,5.7,9.4,12.7,15.4,16,15.7,14.2,11.2,6.8,2.6
1974,1.3,2.2,5.2,8.1,12.2,15.5,16,15.1,13.7,12.4,8.7,2.1
1975,2.1,3.7,5.7,9.4,12.8,16,16.1,15.6,14.5,12.4,6.4,0.6
1976,1.1,4.4,6.3,8.8,12.4,15.2,16.3,15.1,13.6,9.8,6.8,2
1977,1.4,2,6.7,9.1,11.9,14.3,16.2,15.1,14.5,10.2,6.5,2.8
1978,1.5,3.5,6.4,8.4,12.5,16.6,16.9,15.9,14.1,10.5,6.3,1.6
1979,1.6,3.5,6.6,9.5,12.5,16.1,16.8,16.1,14.1,9.5,6.6,3.6
1980,1.7,3.5,6.7,9.4,12.6,16.4,16.8,15.5,14,10.8,5.7,2.2
1981,3,4,6,8.7,12.2,16.1,16.8,16.1,14,11,7.7,2.3
1982,1.1,3.3,6.2,7.9,11.8,15.9,16.8,15.7,14.6,10.1,5.8,1.8
1983,1.1,2.9,5.1,8.9,12.3,16.4,16.7,15.1,14.2,12.5,6.6,0.7
1984,1.5,3.7,5.8,10.2,11.9,16.2,16.1,15.6,13.1,10.6,4.1,3.2
1985,2,3.1,6.2,8.1,12.7,16.1,15.9,15.7,14.2,10.8,4.8,2.1
1986,1.8,3.2,5.9,9.5,11.7,15.8,16.1,14.7,13.4,9.7,5.5,3.2
1987,2,4,6.1,9.4,12.7,17,15.9,15.6,14.8,10.8,6.6,2.3
1988,2.6,4.3,7,8.7,14.1,16.1,16.3,15.3,13.5,12.6,7.4,3.7
1989,1.6,5,5.6,9.2,12.9,16.5,16.1,15,14.6,12.3,5.8,1.9
1990,2.4,4.9,5.5,9.1,12.1,15.8,16.8,15.4,14.4,11.1,7.5,3.8
1991,2.8,4.5,7.5,9.8,13.3,16.8,16.4,15.9,14.5,12,6.8,3.2
1992,1.6,2.5,7.5,9.2,12.6,16.2,16.3,15.9,14.3,10.9,6.2,2
1993,2.8,4.1,6.2,8.2,12.8,16.1,16.3,15.9,14.5,11.5,6.1,3
1994,3.5,4.7,5.9,9.6,14.4,16.7,16.5,16.1,14.3,10.3,6.6,2
1995,2.7,3.5,6.8,10,13.5,17.1,16.5,15.7,14.5,11.7,8,2.2
1996,1.7,3.3,7.4,9.3,13.4,16,16.7,15.7,14.5,11.5,7.9,3
1997,1.4,3.8,6.4,7.5,13.2,15.5,16.6,16,13.2,10.4,7.2,4.5
1998,3.6,4.8,8,9.9,14.4,16.6,16.7,16.2,13.8,12.6,8.3,4
1999,2.4,4.4,7.2,10.7,12.9,16.5,16.7,15.8,15,12.9,7.3,3.1
2000,3.1,4,6.4,9.8,13.4,16.3,16.7,16.1,14.5,12.8,6.1,3.1
2001,2.6,3.8,5.7,9.3,12.8,16.1,17,16,15.5,13.4,7.9,3.7
2002,3.8,5,7.2,10.4,13.7,16.6,17.3,15.4,14.5,11.2,7.8,3.8
2003,2.3,5,7.3,10.7,13.9,16.3,16.9,16.7,15,12.8,6.3,3.9
2004,3.3,3.7,7.3,10.1,13.5,16.1,16.3,16.1,14.8,10.8,6.5,3.6
2005,4.2,7.1,7.5,10.1,13.1,16.8,17.5,16.6,15,12.8,7,4.8
2006,2.8,6.1,8.1,10.4,12.5,16.4,17.4,16.4,15.1,12.3,7.2,4
2007,3.4,4.9,7.5,9.5,13.1,16.4,17.3,16.3,14.2,12,7.7,4.4
2008,4.4,3.1,7.3,9.3,13.1,15.9,16.3,16,15.2,12.5,6.6,4.7
2009,3.9,6.5,8,10.1,13.2,16.3,17.3,16.2,15.5,12,6.4,3
