1901,4.1,3.7,4,7,10.9,11.7,14.9,13.5,12.8,8.3,6.2,3.8
1902,4.1,2.7,5.9,7.3,7.9,11.8,12.2,12.5,12.3,9.2,7,4.9
1903,3.5,6.1,5.2,6.1,9.2,11.5,12.8,12.4,11.7,8.6,6,3.4
1904,3.9,3.1,4,6.8,9,12.3,13.6,13,11.4,9,5.7,4.6
1905,4.9,4.4,5.6,6.1,9.6,13.2,14.1,12.7,11.2,7.4,5.2,5.9
1906,4.8,2.7,4.4,6.3,8.1,12.3,13,14.2,12.8,9.1,6.7,3.8
1907,4.5,3.4,6,6.9,9,10.6,12.8,12,12.2,8.5,5.8,4.2
1908,4.1,5.3,4.3,5.7,10.3,12.1,13.5,12.7,11.4,11.5,7.3,5
1909,4.7,5,3.4,7.5,9.7,11.3,12.7,13.3,11.1,8.7,4.9,3.3
1910,3.4,4,6,5.9,9.6,12.7,12.7,13.7,11.8,9.6,3.7,5.4
1911,4.7,5,5,6.8,10.8,12.4,13.9,14.9,11.8,8.5,4.9,5.1
1912,3.8,4.3,6.4,8,9.8,11.9,12.8,10.9,10.3,8,5.6,5.2
1913,4.2,5.1,4.8,6.9,9.5,11.9,12.8,13.4,12,9.8,6.9,5
1914,4.2,5.3,5,8.9,9,12.2,13.8,14.2,12.1,9.9,6,3.1
1915,3.4,3.5,5.1,7.2,8.9,12.3,12.9,13.6,12.3,9.2,4,3.7
1916,6.4,3.4,3.2,6.9,9.1,10.7,13.4,14.3,12.4,9.1,6.5,3.4
1917,2.3,3.5,4,4.8,9.7,12.1,14.5,14.3,12.2,6.5,6.9,3.7
1918,3.3,6,5.5,6.7,10.8,11.8,13.3,13.9,9.4,8.1,5.8,5.8
1919,3.7,3.1,3.1,6.8,11.5,11.6,12.3,13.2,11.2,8.5,3.5,4.4
1920,4.2,5.4,5.3,6.7,9.7,12.6,12.5,12.2,11.7,10.4,7.6,4.5
1921,6,5.9,5.8,8,9.5,12.2,14.6,12.5,12.3,11.4,6.5,6.7
1922,4.4,5.2,5.2,4.9,9.9,11.4,11.6,11.9,10.9,8.4,6.6,5.3
1923,6.2,5.5,6.3,6.8,7.6,10.7,14,12.9,10.8,8.6,3.6,4.5
1924,5,4.7,4.3,6,9.1,11.7,13.2,13,11.1,9,7.2,6.5
1925,5.4,4,5.2,6.6,9.4,12.5,13.9,13.5,10.5,9.6,5,3.6
1926,5.2,5.8,5.9,9,9.1,12.3,14.4,14.4,12.4,7.4,5.4,5.1
1927,4.6,5.4,6.5,6.7,9,10.2,13.9,13.9,11,9.4,6,2.9
1928,4.7,5.3,5.3,7.3,10,10.5,12.8,13.4,11.4,9.7,6.6,4.7
1929,3.1,3.5,6.9,6.5,10.1,11.4,13.6,13.2,13,8.5,6.2,4.8
1930,3.9,2.9,4.5,7.5,9.7,13,13.2,13.5,12.1,9.1,5.4,5.2
1931,4.2,4.2,4.4,7.1,9.9,11.7,13.1,13.1,11.2,8.7,7.2,6.6
1932,6.4,5.1,5.4,6.3,9.6,13.3,14,13.9,11.5,8.1,6.5,5.2
1933,3.6,4.4,6.5,8.4,10.2,13.6,15.1,14.4,13.3,9.9,5.9,4.3
1934,5.4,6.3,4.9,6.7,9.3,12.9,15.2,13.7,12.3,8.9,5.9,7
1935,5.3,5.2,6.7,7.4,10,12.7,14.2,14.3,12.5,8.7,5.9,3.6
1936,3.5,3.9,6.2,6.6,10.3,12.8,14.1,14.2,12.8,9.5,6.2,5.7
1937,4.8,4.2,3.3,8.1,10.2,12.5,13.5,14,12.1,9.3,6.4,4
1938,5,5.2,8,7.9,9.7,11.8,12.6,13.9,12.5,9.4,7.4,4.4
1939,3.4,5.9,6.2,7.9,10,12.9,13.4,14.3,12.8,8.5,7.2,4.9
1940,2.3,3.8,5.4,8.1,10.9,14.4,13.5,13.8,11.4,9.1,6.4,4.8
1941,1.6,3.4,4.9,6.4,9,13.2,14,13.3,13.6,10.4,6.5,6.4
1942,4.1,3.8,4.9,8.5,9.8,11.8,13.3,14.1,11.7,8.9,6.2,6.6
1943,5,6.2,7,8.8,9.8,12.6,14,13.4,11.8,10.3,6.4,5.4
1944,6.1,4.6,5.8,9,9.7,11.9,14.6,14.5,11.3,8.7,5.3,5
1945,1.5,6.3,8.2,8.5,9.9,12.3,14.1,14.4,13,10.8,8.3,6.3
1946,4.9,5.5,6,8.1,10.4,11.8,13.4,12.7,12.5,9.5,6.8,4.5
1947,3.5,0.3,2.8,7.1,10.4,12.2,13.7,16,12.5,10.7,6.2,5.4
1948,3.7,4.9,7.9,8.3,9.8,12.1,13.5,13.4,11.9,9.2,7.9,6.3
1949,5.2,5.9,6,8.5,9.5,13,14.5,14,13.5,10.8,6.9,5.1
1950,5.7,4.1,7.1,6.6,10.5,13,14.2,14.1,11.5,9,4.9,2.3
1951,3.6,3.2,4.2,5.8,9.2,12.2,13.7,13.4,12.4,10.2,7.3,5.5
1952,2.9,4.6,6.3,8.6,10.8,11.6,14,13.8,10,8.6,4.6,4.2
1953,5.2,5.5,6.6,6.4,10.9,13,13.6,13.9,12.8,10.3,7.7,7.1
1954,4.4,3.6,5.8,7.8,10.2,12.4,12.5,13.1,11.1,9.5,6,6.3
1955,2.6,1.9,4.3,8.6,8.9,12.5,15,15.3,13.1,8.7,6.9,5.1
1956,3.7,3.2,6.5,7,10.3,11.7,13.9,12.2,12.4,9.1,7.1,6.1
1957,5.1,4.4,7.8,8.3,9.8,13,13.7,13.9,11.1,9.6,6.6,5.6
1958,3.8,3.9,4.1,7.2,8.9,12.6,13.9,13.8,13.9,10.2,7.9,5
1959,2.7,6.4,7,8.2,11.6,13,14,14.4,13.4,11.6,7.1,5.4
1960,4.3,3.8,5.9,8.6,11.4,13.9,14,13.7,12.2,9.5,6.7,4.4
1961,4,6.3,7.9,8.3,10,12.4,12.9,13.2,12.6,9.5,5.6,3
1962,4.5,4.8,3.2,7,9.1,12,13.2,12.8,11.4,10.2,6.1,4.7
1963,1.1,1.7,5.8,7.3,9,13.2,13.1,12.4,11.6,9.9,6.2,4.2
1964,5.7,4.9,5.2,7.9,11,11.8,13.4,12.9,12.2,9,7.2,4.2
1965,3.1,4.3,5,7.2,9.9,12.7,12.5,12.9,11.1,10.1,4.5,4.1
1966,3.3,4.3,6.3,5.8,9.3,13.1,13.3,13,12.7,8.7,4.9,4.7
1967,4.8,5.4,6,7.4,8.9,12.1,13.4,13.5,12.4,8.6,6.1,4.8
1968,4.6,2.5,5.7,7.4,8.4,12.5,13.3,13.8,12.3,10.9,6.3,4.7
1969,4.4,1.8,4.1,7,9.3,12.5,13.7,14.2,12.2,11.6,4.1,4.5
1970,4.3,2.8,4.2,6.2,10.5,14.4,12.3,13.8,12,9.4,6,5
1971,5.4,5.7,6,7.6,10.3,11.5,13.9,13.7,12.9,10.8,6.5,7
1972,4.1,4.9,5.8,7.6,9.8,10.7,13.1,12.5,10.9,10.2,5.6,6
1973,5.5,4.5,6.4,6.5,9.3,12,13.8,14,11.9,8.7,5.6,4.7
1974,5.7,5.4,5.4,8.1,10.1,12.1,13,13.6,10.9,8,5.6,6.2
1975,5,5.6,4.7,7.4,9,12.5,14.3,14.9,11.6,10.1,6.5,6.2
1976,5.2,5.1,5.5,8.1,9.8,13.2,15.1,15,12.2,9.3,6.2,3.1
1977,3.5,3.7,6.3,6.5,9.6,11.3,14.3,13.8,11.3,10.8,5.3,5.9
1978,3.3,3,5.7,6.6,10.5,12.1,13,13.4,12.4,10.6,7.3,4.7
1979,1.6,2.5,3.8,6.6,7.6,12.3,13.1,13,11.6,10.4,6,5
1980,3.5,5,4.7,8.2,10.7,12.4,13.1,14,13,8.5,6.2,5.6
1981,4.8,4.3,6.1,7.5,10.3,11.7,13.2,13.8,12.7,6.9,6.6,2.4
1982,3.6,5.2,5.4,8.2,9.9,13.5,14.4,13.7,11.7,9.6,6.2,4.3
1983,5.1,3.2,6.2,5.7,9.1,12,15.1,14.9,11.7,9.2,7.2,5.9
1984,2.5,4.8,4.9,8.2,9.3,12.7,14.3,15,11.7,9.3,6.2,5.7
1985,1.5,4.1,4.4,7.5,9.6,11.7,13.4,12.9,11.9,10.3,3.8,5.2
1986,3.3,1,5.2,5.4,9.2,12.5,13,12,10.6,9.5,6.6,4.7
1987,2.8,4,4.2,8.2,9.3,11.2,13.9,13.1,11.8,8.1,6.7,5.6
1988,4,4.7,5.5,7.9,10.7,12.9,13.1,13.1,11.6,9.2,6.3,7.1
1989,6.9,5.1,5.7,5.9,10,12.1,14.9,13.7,11.7,10,5.9,3.8
1990,5.4,5,7,7,10.6,12.3,14.3,14.1,11.2,9.8,6.2,4.6
1991,4.1,3.5,6.8,7.6,10,11.1,15.5,14.8,12.5,9,6.2,6.3
1992,5.5,6.1,6.6,7.5,11.2,13.8,13.7,13.1,11,7.3,6,4.7
1993,4.7,6.5,6.2,8.1,10,12.6,12.7,12.6,11.5,7.7,6,4.1
1994,4.2,3.6,5.6,7,9.7,11.7,14.3,13.3,11.7,9.4,8.9,5.8
1995,4.2,4.9,4.5,7.6,9.5,12.7,15.1,15.7,12.3,11.2,7.7,3.3
1996,5.6,4,5.1,7.9,8.1,12.2,13.3,13.8,12.9,10.2,5.4,4.2
1997,4.1,5.4,7.5,8.7,10.2,12.3,14.5,15.6,12.4,9.8,8.3,6.3
1998,5.2,7.6,7,6.9,10.6,12,13.4,13.6,12.9,8.9,6.4,6.2
1999,4.8,4.9,6.4,8.2,10.6,11.7,14.2,14.1,13.2,10.4,7.3,4.3
2000,5.3,5.6,7,7,10.4,12.2,14.1,14.4,13,9.4,6.2,5.2
2001,4.2,4.5,4.7,7,10.9,11.7,13.5,14,12.2,11.6,7.6,5.4
2002,6.5,5.5,6.8,8.4,10.6,12.8,13.3,14.4,12.9,8.6,8,5.6
2003,4.6,5.2,7.2,9.2,9.9,13.4,15.2,14.9,12.4,8.6,7.7,5.9
2004,5.3,5,6.5,8.7,10.4,13.1,13.6,15.3,12.9,9,7.9,6.8
2005,6,4.7,7.3,8.2,9.6,13.2,14.1,14.2,13.2,11.6,6.7,5.9
2006,5.7,5.2,5,7.2,10,13.2,15.5,14.2,14,11.3,7.1,6.5
2007,5.8,5.9,6.6,9.5,10.1,13.4,13.8,13.5,12.1,11.1,7.9,6.2
2008,5.3,6.3,5.7,7.5,11.9,12.4,14.5,14.5,12.4,8.7,6.6,4.8
2009,4.6,5.2,6.6,9,10.4,13.5,14.4,14.2,12.7,10.6,7.1,3.9
