1901,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1902,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1903,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1904,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1905,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1906,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1907,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1908,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1909,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1910,5.7,6,5.7,5.7,4.9,4.3,4,3.8,3.7,3.5,2.7,3.9
1911,5.6,5.9,5.3,5.7,5,4.7,4.3,4.1,4,3.8,3.1,4.4
1912,6,6.4,6,6.4,5.1,4.4,4.1,3.9,4.2,4,2.8,4.3
1913,5.9,6,5.7,6,5.2,4.6,4.4,4.3,4.3,4.4,3.5,4.4
1914,6,6.2,5.7,6,5,4.5,4.3,4.2,4.2,4,3,4.5
1915,6,6.6,5.8,6.3,5.4,4.7,4.4,4.2,4.1,3.9,2.9,4.3
1916,5.7,6.2,5.7,6.2,5.2,4.4,4.1,3.9,4.2,3.8,2.8,4.3
1917,5.8,6.2,5.8,6.1,5.3,4.9,4.3,4,4.1,3.7,3.1,4
1918,5.6,5.9,5.7,6,4.8,5.2,4.8,4.5,4.3,3.9,3,4.2
1919,5.9,6.3,5.6,6.2,5.5,4.4,4,3.9,4.1,3.7,2.9,4.1
1920,5.7,6,5.7,5.8,4.9,4.3,3.7,3.9,4,3.8,2.8,3.8
1921,5.5,5.8,5.4,5.7,5.2,4.2,3.7,3.9,3.9,3.7,2.9,4.1
1922,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1923,5.6,6,5.6,5.9,5.1,4.8,4.1,4.2,4.3,3.9,3.1,4.2
1924,5.9,6,5.7,6.1,5.4,4.7,4.3,4.2,4.1,3.9,3,4.2
1925,5.5,5.7,5.3,5.9,5.3,4.7,4.4,4.1,4.3,4.1,3,4.3
1926,5.8,6.1,5.7,6.2,5.4,4.9,4.4,4.2,4.3,4,3.1,4.2
1927,5.6,5.9,5.6,6,5.3,4.8,4.3,4.2,4.3,3.9,3.2,4.4
1928,5.7,6.1,5.5,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.2
1929,5.8,6,5.5,6,5.3,4.7,4.3,4.2,4.3,4,3.1,4.4
1930,5.7,6,5.7,6,5.2,4.8,4.4,4.1,4.3,4,3.2,4.4
1931,5.8,6.1,5.7,6.2,5.4,4.9,4.3,4.2,4.3,4.1,3.1,4.3
1932,5.7,6,5.5,6.2,5.2,4.8,4.3,4.2,4.3,3.9,3.1,4.3
1933,5.8,6,5.6,6,5.3,4.7,4.5,4.1,4.4,3.9,3,4.1
1934,5.6,5.9,5.4,6,5.2,4.8,4.3,4.2,4.4,3.9,3,4.3
1935,5.7,5.8,5.6,6,5.2,4.8,4.4,4.2,4.2,4,3.1,4.4
1936,5.7,6.1,5.7,6.1,5.4,4.8,4.3,4.1,4.4,4,3.2,4.3
1937,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1938,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1939,5.7,6,5.5,5.9,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1940,5.7,6,5.6,6,5.3,4.8,4.4,4.2,4.3,4,3.1,4.3
1941,5.6,6,5.7,6,5.3,4.7,4.6,4.2,4.2,4.5,3.7,4.8
1942,5.7,5.8,5.6,6,5.2,4.6,4.6,4.1,4.2,4.1,3.4,4.2
1943,8.1,6.1,8.5,7.9,5.2,4.8,5.2,4.3,4.8,5.6,3.4,6
1944,7.4,7.6,6.5,7.3,6.5,5.7,7.3,6,6.5,5.2,4.1,5.4
1945,7.2,7.6,6.8,5.9,5.1,5.2,4.8,5.4,6.2,5.4,4.8,4.9
1946,5.5,6.9,6.6,7.1,5.9,5.6,4.8,4.9,5.1,4.9,4.1,4.4
1947,5.6,6,5.7,5.8,5.2,4.7,4.3,4.2,4.4,3.8,3.1,4.2
1948,5.8,6,5.4,6,6.6,5.3,4.4,4.4,4.9,4,3.4,4.1
1949,5.7,6.6,6.6,6,5.2,4.4,3.6,3.8,3.4,3.1,2.9,3.4
1950,4.7,4.8,4.2,4.6,4.5,3,2.9,2.9,3.9,3.4,2.7,3.7
1951,4.5,5.1,4.8,5.2,5.3,5.6,5.2,4.6,4.4,4.1,3.1,4.1
1952,5.5,5.6,5.4,5.3,5.1,3.8,3.4,3.4,3.5,3.4,2.1,3.6
1953,4.9,5.4,4.9,5.7,5.2,4.4,3.4,4.6,3.8,3.1,2.9,3
1954,5.6,5.5,5.1,5.7,4.2,3.8,3.5,3.4,3.6,3,2.5,3.5
1955,4.8,5.7,4.7,5,4.5,4,3.6,3.1,3.4,3.2,2.7,3.5
1956,4.7,5.6,4.8,5.2,4.4,3.9,3.7,3.6,3.7,3.1,2.3,3.5
1957,5,5.1,5.1,5.7,6.3,5.9,5.5,5,4.9,4.5,3.2,4.7
1958,5.2,5.9,5.2,5.8,5.1,4.6,4.3,3.7,3.8,3.6,2.2,3.7
1959,5.5,5.3,5.4,5.9,4.9,4,4,4.1,3.5,3.7,2.2,3.5
1960,5.1,5.3,4.5,5.5,4.3,3.3,3.8,3.7,3.8,2.9,2.3,4
1961,5.2,5.3,4.7,5.3,6,4.3,4.2,4,4.2,4.1,3.2,4.4
1962,5.8,6.1,5,5.6,5.1,3.5,4.4,4.4,4.4,4.1,3.5,4.5
1963,5.4,5.4,4.6,5.2,5.3,4.7,4.5,4.5,4.3,3.9,3.2,4.6
1964,6,6.4,4.9,5.6,5,4.4,4.1,3.6,3.5,3.5,3.1,3.5
1965,5.5,5.3,4.6,5.4,5.3,4.3,4.4,3.8,3.9,3.9,2.8,4.2
1966,5.6,5.6,5.2,5.9,5.3,4.4,4.6,4.2,4.1,3.7,2.8,3.7
1967,5.6,5.3,5,5.7,5,3.2,3.6,3,3.1,3.1,1.7,3.3
1968,4.8,5.2,4.8,5.5,3.4,3.4,3.7,4.2,4.6,3.5,2.4,3.7
1969,5.5,6.1,5.7,6.5,6.2,5.5,4,3.7,4.2,3.7,2.7,4
1970,5.5,5.7,5.8,5.9,4.7,4.3,4.1,3.4,4,3.7,2.3,3.9
1971,5.4,5.1,4.5,5,4,4,3.7,3.9,3.9,3.1,2.2,3.6
1972,5.6,5.8,5,5.9,5.7,5.3,5.8,5.9,4.7,5,3.6,5.5
1973,5.9,6.1,5.6,5.7,4.8,4.5,3.4,3.2,4.2,3.1,2.2,2.7
1974,4.8,5,4.9,5.5,5.1,4.6,3.2,3.3,2.8,3.2,2.7,3.9
1975,4.8,5.3,5.4,6.1,4.6,4,3.2,3.7,3.6,3.8,2.2,3.3
1976,4.6,5.3,5.2,5.6,5.2,5.1,4.8,4.5,3.7,3.7,3,4.3
1977,5.5,5.5,5.6,5.8,5.1,4.6,4.9,4.4,4.5,4.6,4,5.3
1978,6.1,6.8,5.8,5.5,5.1,4.8,4.5,3.5,4.3,4.2,4,4.6
1979,5.9,5.8,5.8,6.1,5.2,5,4.5,4.3,4.4,4,3.1,3.9
1980,5.6,5.4,5.8,6.5,5.3,5,4.4,3.8,3.9,3.7,2.5,3.6
1981,5.7,6.4,6.7,7,5.6,5,4.2,4,4.6,4.5,2.8,4.9
1982,6.9,7.3,6.9,6.8,6.3,5.6,5.8,4.3,5.1,5.7,3.8,5.9
1983,7,7.5,6.9,7.3,6.8,6.4,6.1,4.9,4.5,4,3.7,4.5
1984,4.7,5.8,6,6.2,4.6,5.2,4,4.8,4.7,5.1,2.6,4.8
1985,5.2,5.4,6,6.2,4.2,4.7,3.3,3.9,4.2,3.6,2.3,3.7
1986,6.1,6.4,6,6.7,5.1,4.3,3.7,4.7,4.5,4.2,3,4.9
1987,6.5,7.1,6.3,6.8,5.5,5.7,5.4,5.3,5.2,4.4,3.9,5.2
1988,6.4,6.6,6.3,6.5,5.8,4.9,3.8,3.8,4.6,3.6,3.1,3.9
1989,5.3,5.3,6.1,6.3,4.8,4.9,3.8,4.6,4.5,4.4,3.7,4.2
1990,6.4,6.2,6.2,6.8,5.4,5.1,4.8,4.1,5.2,4.4,4.4,5
1991,5.3,6.1,6.1,6.4,5.8,6,4.7,3.3,4.2,3.9,3.4,4.5
1992,6.4,6.1,5.7,6.7,6.2,5.3,4.2,4.6,4.4,4.4,3.1,4.3
1993,5.6,5.6,5.3,6.1,5.6,5.5,5,4.5,4.4,4.2,2.9,4.3
1994,5.2,5.6,5.3,5.8,5.4,4.7,4.3,3.5,4.5,4.2,3.2,4.5
1995,6.3,6.1,5.5,5.6,5.3,5.8,5.1,4.7,4.2,4.1,2.8,3.3
1996,4.5,5.1,5.8,5.9,4.9,3.7,3.8,3.9,4.5,3.4,3.1,3.7
1997,4.9,5.6,5.8,6.6,6.7,6.4,6.1,5.8,5.7,5.3,4.3,5.9
1998,7.3,7.1,7.1,7.7,6.6,5.9,5,5.5,4.8,4.2,3.6,4.1
1999,5,5.4,5.7,6,4.5,4.9,3.9,4,3.9,3.9,3,3.6
2000,4.9,4.9,4.6,4.9,5.3,4.9,4.8,4.6,4.3,4.6,3.5,4.3
2001,7,7.2,4.8,5.5,3.9,2.8,3.7,3.6,3.2,3,2.4,3.6
2002,5.1,5.8,5.8,6.6,5.9,3.9,3.8,3.8,4,3.9,3.9,4.6
2003,5.9,6,5.9,5.3,4.7,4,4,3.9,4.2,4.3,3,4
2004,5.3,6.1,5.7,5.4,3.9,3,3.5,3.2,3.7,4.7,2.9,5.2
2005,5.7,5.6,4.6,5.6,4.4,3.6,3.8,3.5,3,2.8,1.2,2.3
2006,5.3,4.9,5.2,4.9,4.3,4.9,4.3,4,4.3,4.1,3.2,4.1
2007,6.1,6.2,5.2,5.8,4.2,2.7,3.4,2.6,2.7,2.1,1.8,2.7
2008,5.1,5.3,5.2,5.2,4,3.8,4.5,4.2,4.3,3.6,2.4,3.5
2009,5.3,5.8,4.9,6.9,5.5,5.5,5.7,5,5,4.6,3.5,4.7
