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