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