1901,4.1,1.9,5.7,9.4,12.9,19.8,22.6,22.8,17.3,10.6,6.5,3.3
1902,3.6,5.3,7.1,9.7,11.9,16.7,22.5,22.5,17.4,10.3,7.7,4.5
1903,4.2,4.7,7,9.2,11.9,17.1,22.1,22.6,17.2,12.5,7.7,3.3
1904,3.3,4.4,5.3,9.4,14.7,18.5,23.3,22.6,17.4,13,7.5,5.9
1905,3.2,3.1,7.5,10.3,12.6,17.3,22.4,22.2,16.9,11.2,6.4,4.1
1906,4.3,3.2,6.1,7.7,12.6,18.7,22.3,23.5,17.9,12.3,7,3.5
1907,2.9,2.8,6.5,8.7,11.9,18.6,20.9,22.3,18,10.2,7.4,5.7
1908,4.5,3.9,4.6,7.1,13.6,16.2,21.8,22,18.7,12.5,8.3,5.2
1909,2.5,2.7,5.9,9.5,13.1,15.8,21.5,22.1,15.9,12.3,7.4,5.8
1910,3.6,5.2,4.9,8.2,11.4,17.4,21.5,21.3,16.9,12,7.2,5.2
1911,1.6,4.2,5.2,7.6,12,16.3,22.1,22.6,19.2,11.3,7,5.6
1912,4.2,6.6,7.6,8.3,14,17.6,20.4,20,16.1,10.9,6.3,3.4
1913,5.1,4.2,5.9,8,13,18.7,22,21,16,11.4,7.9,4.1
1914,2.3,5,6.6,9.2,12.9,15.9,21.1,21.5,18.5,11.9,6.7,3.9
1915,2.4,3.4,6.1,6.8,12.7,17.5,23,22.9,17.2,10.3,6.7,4.6
1916,3,3.7,5.1,8,12.9,17,21.4,21.8,16.8,12.2,6.7,4.8
1917,2.5,3.6,4.8,6.9,12.7,17.4,22.8,21.6,18.9,10.9,5.7,1.1
1918,4,3.7,5,7,12.4,17.6,22.1,21.9,17.5,9.2,5.9,3.5
1919,1.8,5.1,5.8,7.5,12.1,17.7,20.9,22.8,17.6,9.7,5.5,2.2
1920,3,4.4,5.8,9.2,13.5,17.8,21.6,21.7,17.8,10.5,5.9,3.1
1921,3,3.9,5.8,7.7,12,17.2,22.8,21.8,18.2,13.4,6.3,2.7
1922,3.3,4.3,5.4,8.6,13.8,17.1,22.1,22.2,16.2,12,6.5,2.9
1923,0.9,4.4,6.5,6.7,12.8,15.6,23,23.6,16.5,13.7,5.8,1.6
1924,3.5,2.2,6.4,9,15.3,19,22.9,21.9,17.7,12.2,6.8,3.5
1925,2.3,2.9,3.5,7.8,11.9,16.5,20.5,22.2,16.9,11.2,5.5,5.1
1926,3.8,6.6,7.1,9.2,11.9,17.5,22.8,22.9,20,13.7,5.4,2.8
1927,3,3.2,5.7,9.3,14,18.2,21,22.3,18.1,12.6,6.1,4
1928,2.5,4.7,6.5,8.1,11,18.4,24.1,22.6,18.4,11.9,5.7,2.7
1929,2.1,4.5,6.1,9,11.9,18.1,22.4,21.8,17.8,11.3,6.2,4.9
1930,4.2,2.1,6.5,7.4,13.2,16.4,21.4,23,18.5,13.6,7.8,5.1
1931,3.2,3.4,7.4,9,12.7,19.3,22.6,21.3,17,12.4,7.3,2.3
1932,2.7,2.6,6.5,7.6,12.5,16.5,20.9,22.2,17.8,10.9,7,4.5
1933,2.5,3.8,6,10.1,14.6,16.9,23.1,24.4,18.4,12.5,5,1.7
1934,1.9,2.5,4.1,7.5,13.2,18.8,23.1,21.2,18.7,12.1,5.4,5.6
1935,1.4,2.8,6.3,8.9,11.2,17.9,23.6,22.4,19,10.8,6.3,4.8
1936,5.7,6,5.8,8.6,10.6,16,21.8,22.5,18.8,10.4,5.5,2.3
1937,4.2,6,5.6,9.5,12.7,17.5,23.2,22.9,17.8,12.4,8.6,3.3
1938,2.6,2.7,6.2,8.5,11.8,20.2,22.7,21.4,16,12.7,8,3.7
1939,4.9,4,5.1,7.8,11.3,16.4,22.3,21.6,18,11.1,6.8,4.1
1940,3.6,6,7.6,9.4,12.8,16.8,22.1,22.7,17.9,10.9,6.3,2.4
1941,2.6,5.1,6.6,8.3,11.4,17.2,22,22.1,18.2,12.4,6.5,3.2
1942,2.8,2.1,7.1,9.2,13.7,18.2,22.5,22,17.9,13.2,7.1,4.8
1943,4.5,3.6,6.2,10,14.3,19.7,21.5,21.9,17.2,11.3,5.6,4.2
1944,2.8,1.9,5.8,9.9,14,18.7,22.3,22.6,18.5,10.1,6.4,2.9
1945,0.8,4.1,6.6,11.6,14.9,19.4,23,21.8,19.5,12.5,8.8,5.5
1946,2.4,4.4,6.2,8.5,11.2,17.9,24.2,23.5,19.1,12.9,5.7,2.9
1947,1.6,3.6,6.4,8.9,10.9,18.2,23.5,22.7,18.4,10.9,8.4,3.1
1948,1.8,5.5,7.9,9,12.4,18.7,21.8,22.1,18.1,12.3,7.6,5.1
1949,3.5,3.9,5.9,10.7,12.7,18.5,23.4,23.8,18.7,12.9,7.7,4.5
1950,3.5,4.9,6.7,8.8,12.9,18.6,23.9,22.7,18.3,12.7,8.5,3.1
1951,2.7,3.3,6.3,8.5,10.3,18.2,22,20.8,17.7,10.4,6.2,5.2
1952,2,3.7,7.7,8.9,12.7,18.5,22.4,21.1,15.6,11.9,7.1,3.5
1953,2.4,3.2,5.6,9.2,14.2,16.4,22.4,22.9,17.4,11.1,8.3,5.9
1954,2.4,2.5,5.4,7.5,12.8,17,21.7,20.7,17.4,12.4,8.5,5
1955,5.6,4.8,5.6,9.8,15,18.6,23,22.8,18.7,12.2,7.6,6
1956,3.7,0.8,5.7,7.7,12.6,17.4,21.2,20.8,16.3,12.2,5.4,2.5
1957,2.5,5,7.7,8,11.7,16.5,22.5,22.4,18.7,11.2,6.1,2.7
1958,3.3,5.9,6.3,7.9,14,16.8,21.5,21.3,18.6,11.8,6.9,4.9
1959,4.6,4.2,7,9.2,12.5,17.9,23.1,21.7,17.6,12.6,7.1,4
1960,3.4,4.9,6.9,9,13.5,19.4,22.7,21.2,17.7,9.2,6.5,2.8
1961,3.1,5.9,7.3,9.7,15,18.5,23.3,23.2,19.3,11.9,6.8,4.7
1962,4.4,4.2,6.2,9.4,13.3,18,22.6,23,19.5,13.4,5.1,3.1
1963,3.4,3.5,6,8.5,12.7,17,22.8,21.2,16.9,12.7,7.2,4.1
1964,4.1,4.9,6.4,8.1,15.2,18,23,22.6,20.7,11.5,6.5,3.3
1965,3.6,3.1,6.8,9.2,14.6,19,21.3,21.9,15.5,11.7,6.7,4.3
1966,5,5.7,6.2,8.9,14,17.9,22,21.8,18.8,10.1,4.5,3.5
1967,3.1,4.5,7.4,7.8,12.3,17.2,22.7,22.4,16.5,12.9,7.3,2.8
1968,3.1,4.6,6.1,8.4,12.4,17.7,22.9,21.3,16.7,12.9,6.8,3.7
1969,4.4,3.6,6.3,8.9,12.8,16.6,23.1,22.1,15.4,12,6.7,2.7
1970,4.2,4.3,5.3,8.5,12.8,16.6,22.4,21.8,18.9,11.5,8.3,2.2
1971,3,4.7,4.5,7.8,10.8,15.9,22.2,21.8,18.4,14.2,5.2,3.7
1972,2.7,4.8,5.5,8.5,11.6,16.3,21.4,21.6,15.8,11,7.3,3.7
1973,3,3.5,4.6,8.3,13.3,18.1,22,23.3,17.5,11.3,7.7,2.7
1974,3.9,3.8,7.1,6.2,13,17.3,23.3,22.1,17.5,10.2,6.6,4.3
1975,4,4.8,5,8,11,16.5,22.8,23.1,16.5,12.4,6.3,3.8
1976,2.9,4.9,6.4,6.8,12.9,19.3,22.9,21.9,16,9.4,4.2,4.1
1977,3.7,4.7,7.1,9.1,11.8,15.3,20,19.7,18.1,12.1,9.3,5.6
1978,3.9,5.4,7,7.9,11.5,15.7,20.5,22.4,18.9,12.3,7.6,5.9
1979,5.9,5.1,5.8,8.2,12.8,18.8,23.5,22.4,15.9,11.2,6.5,4.4
1980,3.2,5.3,6.7,8.7,12.3,17.9,21.7,22.8,20,12,6.9,3.5
1981,2.6,3.9,7.6,8.2,12.7,18.8,22.3,21.3,18.1,12.3,9.5,5.3
1982,4.3,5.1,7,8.9,13.5,20,21.8,21.9,18.3,11,6.6,3.7
1983,3.7,3,7.5,8.9,11.8,19.1,21.4,21,20,14.3,9.2,5
1984,3.7,3.9,4.8,10.7,10.1,17,23.3,21.5,18.2,11.4,7.3,5.2
1985,2.6,6.3,5.9,9.8,12.2,18.8,23.8,22.5,20.5,14.4,7.4,4.3
1986,3.5,4.6,6.2,7.2,14.9,18.2,23.4,21.9,19.4,13.6,7.8,4.1
1987,3.3,4.8,7.9,10.4,13.3,18.9,23,22.9,20,12,7.4,5.6
1988,5,4.8,7.3,9.9,12.9,17.6,23,23.7,19,13,8.5,3.9
1989,3.9,5.4,7.5,8.6,14.4,19.6,25.2,23.8,18.4,13.7,8.4,6.5
1990,4.3,6.1,7.8,8.7,14.7,18.8,25,24.1,20.9,12.5,7,3.6
1991,3.9,3.9,7.1,8.7,13,19.4,24.3,24.2,20,11,6.6,4.9
1992,3.3,4.3,6.7,9.7,14.6,16,23.4,23.4,18.2,10.7,7.4,5
1993,3.4,4.4,6.6,8.6,12.9,18.8,23.3,23.5,16.1,9.8,6.9,4.3
1994,3.5,4.8,8.2,8.9,13.4,19.2,24.7,23.4,16.9,12.5,8.7,5.3
1995,4.5,6,7.3,9.7,14.9,18.6,23.5,23.2,16.1,14.1,9,6.1
1996,5.5,4.5,6.7,10,13,19.7,23.1,22,16.5,11.8,7.3,4.7
1997,4.6,6.4,8.5,11.1,14,18,22,22.8,19.5,14.6,8,5
1998,4.9,6,8.1,9.1,13.1,19,24.1,24.2,18.5,11.4,7.8,4
1999,3.8,4.1,7,10.2,14.3,19.5,23.8,22.6,18.1,12.9,6.4,4.4
2000,3.2,6.6,7.7,8.5,14.3,20.5,23,22.7,18.4,11.3,6.5,5
2001,4.7,5.6,8.8,10.2,13,19.9,22.6,23.5,18.6,13.8,6.4,3.7
2002,4.7,5.6,7.4,9.3,13.3,19.2,23,21.8,17.5,12.5,7.5,5.8
2003,3.8,4.1,7.6,9.4,14.6,21,23.3,24.5,19,12.5,7.6,4.6
2004,5,5.1,6.4,8.7,12.3,20.1,23.9,22.8,19.1,13.1,7.1,4.6
2005,3,2.9,6.4,9.8,15,20.1,24,22.5,17.5,12.8,6.3,4.1
2006,3.1,4,7,10.3,14.7,18.6,23.9,21.9,18.1,13,8.3,4.2
2007,3.4,6.4,6.8,9.3,13.6,18,23.3,22.8,18.6,12.8,7.3,4.7
2008,4.9,6.2,7.3,10,12.4,18.6,23.6,23.7,18.1,12.5,5.6,3.2
2009,3,3.9,7.3,8.6,14.5,19.3,23.7,24.3,18.2,13.7,8.6,4.8
