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