1901,2.6,1.9,1.5,3.4,6.8,8.5,11.9,10.4,10.1,5.8,4.8,2.6
1902,2.7,0.8,3.5,3.7,4.7,9.1,9.8,9.7,9.4,7,4.8,3.3
1903,1.6,3.9,2.3,3.2,6.3,8.7,10.7,9.8,9.1,6.7,4.6,2.1
1904,1.9,1.2,1.3,3.7,5.9,8.9,10.7,10.2,8.3,6.2,4.5,3
1905,3.2,2.1,2.4,3.5,6,9.2,11.2,10,8.1,5,3.4,4.8
1906,3.5,0.5,1.7,2.6,5.5,8.7,10.1,11.5,9,6.3,5.3,2.7
1907,3.2,1.1,3.3,3.7,5.9,7.8,10.1,9.4,9.3,6.4,4.4,2.6
1908,2,3.4,1.5,2.3,7.2,8.5,11.2,9.8,8.7,9.1,5.6,3.2
1909,3.4,2.9,1.1,4.2,6.4,8.2,10.3,10.4,7.8,6.4,3.7,2.4
1910,1.9,1.5,3.4,3,6,9.4,9.8,11,8.6,7.6,2.1,4.1
1911,2.9,2.5,2.2,3.7,7.4,8.8,10.7,11.6,8.5,6.3,3.6,3.5
1912,2.2,2.1,3.2,5,6.8,9.1,10,8.2,7.3,5.4,4.6,3.4
1913,2.3,2.8,2.2,4,6.7,8.7,9.8,9.9,9.1,7.6,5.1,3.9
1914,2.5,2.5,2.1,5.5,5.9,8.3,11.1,11,9.3,7.6,4.3,1.7
1915,1.9,0.9,2.2,4.2,5.7,8.7,10.4,10.7,9.4,6.5,2.4,2.8
1916,4.5,1,0.8,3.4,6.3,7.4,10.7,11.5,9.9,7.2,5,2.2
1917,1.3,0.9,1.6,1.6,6.6,8.7,11.5,11.3,9.6,4.3,5.7,2.1
1918,2.4,4.4,2.4,3.2,7.5,8.4,10.3,11.3,6.7,5.6,3.8,4.8
1919,2.4,1.2,0.1,3.4,8.3,8.4,9.2,10,8,6.4,2.3,3
1920,2.3,3.3,2.8,4,6.8,9.2,9.6,9.2,8.8,7.8,6,2.5
1921,4.5,3.8,3.4,4.2,6.3,8.4,11.7,10.2,9.4,9.3,5.2,5.6
1922,3,3.3,2.3,1.4,6.8,8.4,9.2,9.5,8.1,6.5,5.4,4.2
1923,4.5,3.6,3.7,4.2,4.7,8,11.7,10.4,8.1,6.5,2.2,3.3
1924,3.5,2.7,1.8,2.5,6.1,9.2,11.1,10.6,8.3,6.4,5.6,4.8
1925,3.8,1.8,2.6,3.2,6.6,8.6,10.9,10.4,7.7,7.5,3.4,2.4
1926,3.5,4,3.5,6,6,9.1,11.9,11.6,9.5,5.2,3.5,3.9
1927,3.1,2.8,3.8,3.9,5.6,7.1,11.1,10.9,8.5,7.1,4.5,2.1
1928,2.7,3.3,3.1,4.1,6.5,7.5,10.6,10.4,8.2,7.8,4.8,3.3
1929,1.8,1.6,4.3,3.6,6.6,8.2,10.8,10.9,10.3,6.5,4.5,3.1
1930,1.9,0.5,2,4.3,6.6,8.9,10.9,10.9,9.1,7.5,3.8,3.7
1931,2.7,2.3,2.5,4.5,7.6,9.7,11.5,10.1,8.4,6.6,5.5,5.4
1932,4.5,3,2.8,3.2,7.2,9.1,11.7,11.7,8.9,6,4.7,4.2
1933,1.4,2.3,4.1,5.8,7.5,10.2,12.4,11.8,9.9,7.9,4.2,3.3
1934,3.5,3.7,2,3.7,6.5,9.4,12.2,10.9,9.3,7,4.8,5.9
1935,3.9,3.3,4.2,4,5.8,9.5,11,11.3,9.3,6.2,3.6,2
1936,2,1.6,4.1,3.1,6.8,9,11.5,11.9,10.7,7.2,4.2,4
1937,3,2.6,1,6,7.4,8.8,11,11.7,9.3,6.6,5.3,2.9
1938,3.6,3.3,6.1,3.8,6.7,8.8,10.3,10.2,9.7,7.3,6.4,2.3
1939,1.9,3.9,3.3,4.6,6.9,8.2,10.8,10.8,9.4,5.6,5.5,3
1940,0.5,2.6,2.8,5.1,7.4,9.7,9.9,10.5,7.9,7,4.5,2.8
1941,-0.1,1,2.3,2.9,4.8,9,11.2,10.2,10.8,7.4,4.5,4.7
1942,2.3,1,3,5.2,6.6,8.7,10.9,11.8,9.4,7.1,4,5
1943,3.6,4.5,4.4,6.2,6.6,9.1,10.6,10.8,8.8,8,5.2,3.9
1944,4.9,2.6,2.5,6.1,6.9,8.5,11.7,11.2,8.3,6.5,4.1,3.1
1946,2.3,3.5,3,5,6,8.6,11.3,9.9,10.1,7.6,5.6,1.8
1947,1.6,-1.4,0.9,4.4,7.8,9.7,11.3,12.4,9.9,8.4,5.1,4.4
1948,2.2,2.8,5.1,4.6,5.7,8.9,10.7,10.7,9.2,7.3,6.2,4.2
1949,3.3,3.4,2.9,5.7,6,8.8,11.6,11.4,10.3,8.5,4.6,3.3
1950,3.8,1.5,4.3,3.7,6.6,10,11.5,10.7,8.7,6.7,3.3,1
1951,1.9,0.5,1.6,2.9,4.9,8.1,11.4,10.5,9.6,7.5,5.4,3.6
1952,0.9,2.5,4.1,5.2,7.5,8.8,11.3,11,7.2,6.5,3.7,2.5
1953,3.2,3.6,2.6,2.8,7.8,8.7,10.9,10.9,10.6,7.5,6,5.3
1954,2.6,1.7,3.1,3.8,7.1,9.1,10.2,10.4,7.9,8.2,3.8,4.9
1955,1.2,-0.2,0.6,4.9,6.1,9.4,11.7,12.8,10.4,6.9,6,3.7
1956,2.5,1,4.2,3.9,7.3,8,11.1,9.6,10.4,7.6,5.8,4.5
1957,3,2.5,6.2,4.9,6.7,9.9,11.3,11.1,9.1,8,5.4,3.6
1958,2.4,2.8,1.7,4.4,5.4,9.1,11.1,11.3,10.5,8.2,6,3.2
1959,1.1,3.7,3.9,4.6,7.4,9.9,11.7,12.2,10.3,9.4,4.7,3.6
1960,2.8,1.3,4.6,4.8,8.2,10.5,11,10.2,8.7,7.9,4.7,2
1961,1.4,4.1,5.7,4.8,7,9.4,10.1,10.2,9,6.9,4.3,1.1
1962,2.2,2.6,0.6,3.2,6,8.7,10.2,9.8,8.6,7.9,4.6,3
1963,-0.4,-0.6,2.8,4.5,5.8,9.4,10.2,10,9,8,4.5,2.8
1964,3.6,2.6,2.4,5.1,7.5,9,10.8,10,9.1,6.7,5.1,2.3
1965,1.8,2.8,2.5,3.9,6.9,9.1,9.8,10.1,8.2,7.8,3.3,2.7
1966,2.6,3.1,3.9,3.6,6.3,10.3,10.9,10,10,6.8,3.5,3.4
1967,4,3.1,3.3,4.4,5.2,8.6,10.6,10.5,9.1,6.5,4.5,3.5
1968,3.2,0.1,3,3.8,5.2,8.8,10.1,10.1,9.6,9,4.8,2.9
1969,2.8,0.3,1,3.2,6,8.6,11.2,11.3,9.7,9.8,2.9,3
1970,2.7,0.9,1.9,3.7,8.3,10.8,9.8,11,9.7,8.2,4.8,4.2
1971,3.4,3.4,3.4,4.5,6.7,8.2,11,10.8,10.3,8.7,4.7,5.9
1972,2.1,2.4,2.6,4.5,6.4,7.3,10.2,10,7.7,8.4,4.3,3.7
1973,4,3,3.1,3.7,6.4,8.7,11.2,11.4,9.5,7.4,4.4,3.7
1974,3.7,3.1,3.2,4.1,7.3,8.9,10.5,10.7,7.9,6.4,3.9,5.1
1975,3.6,3.2,2.4,4.4,6.1,9,11.9,12,9,8.3,4.5,4.9
1976,4.3,3.1,2.7,5.1,6.8,10.5,12.4,11.9,9.7,6.6,4.3,1.6
1977,1.8,1.9,4.2,3.8,6.2,7.9,11.6,10.3,8.5,9.1,3.2,4.8
1978,2,1.9,3.1,3.5,7,9.4,10.5,11.2,10.2,9.6,6,3
1979,0.6,1.4,1.5,3.4,4.7,8.6,11.1,10,8.9,8.2,4.5,3.1
1980,1.8,3.1,2,5,7.3,9.5,10.8,11.3,10.4,6.7,5,4.2
1981,4.1,1.9,4,4.6,7,9.3,10.8,11.1,9.4,5,5.4,0.9
1982,2.4,2.6,2.5,4.9,6.5,10,11.1,10.6,8.8,7,4.6,2.4
1983,3.8,1.6,4.3,2.7,6.5,9.2,12.1,12.6,9.3,7.3,6.3,5
1984,0.9,2.6,2.2,5,5.7,9.9,11.7,11.8,9.5,7.1,4.6,3.8
1985,0.1,2.2,2.7,4.6,6.4,8.2,11.2,10.3,10.2,7.9,2.9,4.4
1986,2.1,0.1,2.3,2.6,6.7,9.3,11.1,9.5,8.4,7.5,4.7,3.4
1987,1.6,2.4,2.1,5.4,6.7,8.3,11.5,11.4,8.8,5.8,5.7,4.6
1988,2.7,2.9,3.9,5.2,7.1,9.9,10.7,10.9,9.5,7.5,4.5,6.5
1989,5.7,3,2.9,3.4,7,8.9,12.1,11.5,9.6,8.7,5.6,2.7
1990,3.8,3,5.7,4.3,8.2,9.5,12.3,12.2,9.1,8.5,5.4,2.9
1991,1.8,1.5,4.8,5,7.6,8.2,12.8,12.3,9.8,7.5,5,4.3
1992,4.1,4,4.7,5.5,8,10.7,11.3,10.2,8.4,5.9,4.6,2.7
1993,3,5,4,5.8,7.1,10.1,10.9,10.2,8.8,6.1,3.8,2.7
1994,2.7,1.7,3.5,4,6.6,9,11.7,11,9.2,7.9,7.4,4.2
1995,2.5,3.4,2.1,4.9,6.8,9.2,12.4,13,9.9,8.8,6.2,2.1
1996,4.4,1.2,3,4.9,5.1,9.2,11,11.3,10,8.3,3.9,2.9
1997,3,3,4.8,5.6,7,8.8,11.5,12.7,9.6,7.9,6.7,4.8
1998,2.9,6.2,4.8,4,8,9.3,11.4,11.6,10.8,7.2,5.6,3.9
1999,3.1,3.8,4.1,5.6,8.4,8.6,12.1,11.7,10.2,8.5,6.3,2.8
2000,4,3.3,4.9,3.8,6.7,9.7,11.5,11.3,10.1,7,4.6,4
2001,2.1,2.3,2.4,4.1,7.8,9.2,10.9,11.7,10.3,9.7,6.5,3.3
2002,4.8,3.4,4.5,4.9,7.3,9.7,10.8,11.6,10,7.4,6.3,4.6
2003,3.8,2.8,3.9,5.9,7.2,10.3,12.4,12.2,9.7,7.5,5.8,3.7
2004,4.2,3,3.8,5.8,7.5,10.3,11,12.5,10.4,7.1,6.5,4.9
2005,4.8,3.6,5.6,4.9,6.3,10.7,11.7,11.7,10.7,8.9,4.7,4.3
2006,3.6,3.3,3.3,4.5,7.2,10.4,12.6,12.1,10.9,9.4,5.7,4.3
2007,4.9,3.9,3.6,6.5,7.5,10.3,11.1,11.5,10.1,9.5,7.1,4.2
2008,3.8,3.7,3.5,4.8,8.6,9.4,12,12.3,9.8,6.8,5.7,2.8
2009,2.5,3.6,4.3,5.6,7.3,9.9,11.7,11.5,10,9.2,5.8,2.3
