1901,9.2,11.5,12.2,12.7,12.9,12.4,13.4,13.2,12.8,11.1,9.3,7.6
1902,7.3,10.1,10.9,11.8,11.1,11.6,14.6,14.7,13.5,11,9.2,8
1903,8.9,9.2,11.2,13.3,11.7,11.8,13.9,12.3,12.5,10.7,8.3,6.8
1904,8.1,9.3,10.2,12.9,12.9,12,13.1,13.5,12.5,10.6,8.9,7.6
1905,8.9,10,11.2,12,10.6,12.8,13.4,12.8,12.5,11.4,9.5,7.9
1906,7.1,11.5,11.6,11.4,13.6,13.9,13.5,13.6,13,9.4,8,4.8
1907,6.2,9.9,11.2,11.6,11.5,12,13.2,12.4,12.2,9.6,9,5.3
1908,8.4,8.8,13,14,15.2,12.2,13.3,12.1,13.7,13.4,8.4,6.3
1909,7.4,10.2,10.6,11,11.4,11.4,12.6,13.6,12.6,9,7,7.3
1910,7,8.5,10.5,13.3,12.3,12.2,14.4,13.8,12.4,9.2,7.6,7.9
1911,7.7,8.4,11.2,12.8,13.5,13.4,13.4,13.3,12.2,9.9,8.6,7.3
1912,6.8,9.9,9.8,12.1,12.5,11.9,12.4,12.7,12.3,10.4,9.1,7.7
1913,8.5,9,10.8,12.3,10.8,11,13.1,13,12.5,10.4,8.3,7.3
1914,8.2,10.5,12.1,12.1,10.8,12.9,12.9,12.6,12.3,11.1,8.5,8.1
1915,9.2,10.6,11.4,12.2,12.3,12.4,12.6,12.6,12.3,10.7,9.1,7.4
1916,7.8,10.1,11.2,12.5,12.1,12.3,12.6,12.5,12,10.3,9.1,7.7
1917,8.6,10.4,11.4,11.7,12.3,12.4,12.9,12.3,12,9.9,8.4,7.3
1918,8.1,9.8,10.7,11.3,11.9,12.4,13,12.6,12.2,10.8,8.9,7.8
1919,9.5,10.8,11.8,11.7,12.5,12.6,12.9,13.1,12.4,10.6,8.8,7.5
1920,8.4,9.9,11,12,12.2,12.4,12.9,12.2,12,10.4,8.8,7.3
1921,8.1,9.5,10.5,12.8,12.4,12.5,13.1,12.5,12.4,10.6,8.8,8.3
1922,8.5,10.5,11.6,12.5,12.6,13,12.9,12.7,12.1,10.9,9.6,7.8
1923,9.3,10,11.9,11.9,12.2,12.5,12.6,12.2,12.2,10.3,8.5,7.7
1924,9,10.5,12.2,12.7,12.2,12.6,12.4,12.5,12,10.6,8.6,8.3
1925,7.8,9.6,11.6,12.4,12.3,12.4,13,12.7,12.2,10.8,9.3,8.1
1926,8.4,10.3,11.2,12.1,12.6,12.7,12.8,13.1,12.8,10.7,8.7,7.7
1927,8.8,10.2,11.3,11.6,12.4,12.8,12.9,12.9,12.1,10.7,8.9,8.5
1928,9.4,10.8,12.1,12.9,12.4,12.6,12.7,12.7,12.4,10.7,8.8,7.8
1929,9,11,11.5,13,12.5,12.5,12.4,12.6,12.1,10.7,9.2,7.6
1930,8,10.3,10.9,12.3,12.3,12.2,12.5,12.4,12.2,10.3,8.2,7.8
1931,8.2,10.5,11.3,12,12.4,12.4,12.6,12.6,12.4,10.9,9.3,8.1
1932,8.9,10.3,11.5,12.4,12,12.4,12.5,12.4,12.4,10.8,9.1,7.9
1933,9.3,11,11.9,11.9,12.5,12.4,12.7,12.7,12.5,11.2,10,8.6
1934,8.7,10.4,11.9,12.7,12.4,12.4,12.4,12.7,12.2,10.7,9.1,7.8
1935,8.9,10.5,12.1,12.4,12.2,12.3,12.5,12.2,11.8,10.6,8.7,7.9
1936,8.7,10.6,11.8,12.4,12.8,12.4,12.5,12.3,12,10.8,8.6,8.4
1937,8.8,10.7,11.5,12.5,12.7,12.6,12.9,12.8,12.4,10.9,9.7,8.6
1938,9.6,10.7,11.4,12.7,12.3,12.8,12.9,12.8,12.5,11.3,9.1,8.5
1939,9.1,11.1,11.7,13,13.4,12.9,12.9,12.6,12.1,11.5,9.2,8.4
1940,10.3,12.1,12.2,12.8,13.3,13.8,13.1,13.2,13.2,11.1,9.3,9.4
1941,8.7,10.8,11.8,13.3,12.6,12.3,12.9,12.6,12.2,10.8,8.8,7.1
1942,8.6,10.9,11.6,13.1,12.2,12.9,12.1,12.2,12.3,10.8,9.6,8.2
1943,8.6,9.3,10.8,12.1,12.6,11.9,12.6,12.4,12.1,10.3,9.7,8.8
1944,9.2,11.3,11.5,13,12.6,12.6,12.5,12.5,12,10.8,8.5,7.8
1945,8.7,9.4,11.6,13,12.8,12,12.4,12.1,11.7,10.3,8.8,7.6
1946,9,11.9,11.8,12.2,13.2,11.9,13.2,13.1,13.3,11.6,9.9,8.8
1947,9.9,11.1,11.7,11.7,12.8,14.1,13.4,13.4,12.8,11.3,10.7,8.4
1948,10.7,12,11.4,13,13.1,11.2,12.3,12,12.1,10.1,8.4,8.1
1949,9.6,10.9,12.7,13.7,12.2,11.9,11.8,12.3,11.5,11.1,9.4,7.7
1950,8.4,9.8,12.3,13,13,12.1,12.7,12.1,11.7,9.5,8.2,7.6
1951,9.6,12.3,14,12.8,14.2,13.4,13.1,12.8,9.6,12.4,11,9.8
1952,9.3,10.8,11.8,13.2,14.2,13.2,12.7,13.1,13.7,12.5,10.6,8.3
1953,9.1,11.8,13.5,13.3,13.4,13.8,13.5,13.6,12.7,10.8,11.1,10.4
1954,10,12,13,13.1,13.6,13,12.4,12.9,13.6,9.5,9.1,8.9
1955,10.3,10.7,12.4,12.7,13,12.7,12.5,12.4,13.8,10.5,8.7,9.3
1956,6.8,8,10.6,10.4,11.7,11.4,11.8,11.8,11,10.9,6,6.4
1957,6.7,9.1,10.5,11.2,11.8,11.3,11.2,12,11.8,9.5,9,7
1958,9.3,9.8,11,12.5,12.8,12.2,12.6,12.9,11.8,10.5,7.3,7.4
1959,10.6,10.8,11,12.4,12.4,12.3,12.5,12.1,12.2,10.7,8,7.4
1960,7.2,9.2,10.8,11.2,11.9,12.3,12.3,12.6,12.6,10.2,8.2,9.2
1961,8.8,10.5,11.8,13.1,12.9,12.6,12.6,11.3,11.6,9.7,8.4,6.6
1962,6.5,8.5,11.4,11.5,11.8,11.7,12,11.8,12.9,9.9,8.9,7.9
1963,9.2,11.3,11.1,12,12.4,12.2,12.6,12.3,11.5,10.4,10.7,10.1
1964,9.8,11.1,12.5,12.3,12.3,11.9,12.4,12.3,12,10.5,7.6,8.9
1965,9.2,8.4,10.7,12.2,11.9,12.3,12.5,12.2,11.6,10.8,10.5,9.4
1966,9.8,12.8,12.6,13,11.8,12,12.3,12.5,11.7,10.9,9,7.4
1967,6.2,10.1,12.8,12.7,12.6,12.1,12.1,12.3,11.6,10.3,10.9,7
1968,6.6,10.4,10.6,12.2,12.2,12.5,12.5,12.6,12,10.3,8.6,8.4
1969,11.7,11.6,13.2,13,12.7,12.4,12.5,12.3,12.2,10.5,9,6.1
1970,10.3,11.3,12.7,12.5,12.8,12.5,12.6,12.6,12.6,11.8,7.2,6.6
1971,9.2,9.1,10.8,11.8,12,12.2,12,12,12.1,11.3,9.4,7.7
1972,9.6,11.1,11.6,12.6,12,11.6,12.9,12.7,12.4,11,10.5,9.5
1973,10.2,10.1,11.8,13.1,13,13,13,12.9,12.5,10.7,8.6,5.3
1974,7.7,10.1,12.1,11.8,12.6,12.1,12.5,13.3,12,9.9,6.1,6.5
1975,7.8,12.1,12.5,13.5,13.4,12.2,12.4,12.8,12.2,11,7.4,6.6
1976,7,10.6,11.4,11.6,12.9,13,12.6,12.2,12.8,10.1,10.8,9.7
1977,11.8,12.6,12,13,12.2,12.6,12.5,12.7,12.4,12.2,10,8.8
1978,7.7,11,12.1,13,12.4,12.8,13.3,12.9,12.7,12,9,9.7
1979,10.8,11.5,12.2,12,13,13,13.1,13.4,13.3,11.5,8.9,9.1
1980,10.2,11.5,12.9,13.3,13.5,13.3,13.3,12.9,12.3,12.1,10.6,9
1981,8.8,8.8,12.8,13.1,13.2,13.1,13.2,13.3,13.2,10.7,8.4,7.3
1982,10.4,11.5,11.2,12.7,13.1,13.3,12.9,13.1,12.8,11,11,10
1983,8,11.2,13.3,13.5,14,13.1,13.3,13.9,13.3,12,9.8,6.9
1984,7.3,7.1,11.3,12.9,13.3,13.1,12.4,12.7,12.3,8.8,10.1,8.4
1985,7.9,9.4,11.4,12.3,12.8,12.3,12.3,12.4,12.3,10.5,8.7,7.5
1986,7.8,11.5,10.5,12.7,13,13.2,12.9,12.7,12.3,10.3,9.2,8.5
1987,8.4,10,12.9,12.6,13.2,12.9,13.1,13.1,12.7,11.9,9,8.8
1988,10.1,12.9,11.3,12.4,12.6,13.3,14,13.6,13.5,11.7,7.3,6.3
1989,7.5,10.1,11.8,12.8,11.8,12.2,12.8,13,12.5,9.6,8.7,11.2
1990,8.8,11.1,12,12.6,12.7,13,13.1,13.3,12.9,10.2,9.4,7.3
1991,10.7,11.4,11.7,13.2,13,13.1,13.6,13.2,13.3,9.8,7,8.1
1992,8.2,10.9,12.6,14.1,13.4,13.3,13.2,13.6,12.7,11.6,8.9,8.2
1993,8.6,10.3,11.2,13,13,13,13,13.1,12.4,11.1,9.4,5.4
1994,7.5,10.6,13.5,12.8,13.3,14,13.7,14.2,12.8,9.7,9.5,7.7
1995,8.4,10.9,11.9,13.5,14,13.3,13.6,13.6,13,11.9,9.9,9.8
1996,10.7,11.3,12.7,13.4,13.4,13.6,13.3,13.4,13.3,10.5,9,7.1
1997,9.9,10.1,12.9,12.8,13.2,13.4,13.4,14.1,13.9,10.4,9.1,8
1998,10.5,12.2,12.1,13.1,12.6,12.5,13.7,14.3,13,12.1,6.9,5.7
1999,7.2,7.5,11.4,13,11.6,13.5,13.4,11.3,11.8,11.7,6.8,6.6
2000,6.5,8.1,12.2,13.7,12.4,12.5,13.8,13.2,13,10.5,11.6,7.1
2001,9.5,9.4,12.1,13.4,12.8,13.4,13.2,13.3,13.2,10.8,8.3,7.5
2002,8.5,11.8,11.9,13.3,13.7,12.7,13.3,13.3,12.6,10.5,10.2,9.9
2003,8.8,10.4,12.4,12.2,12.8,13.8,13.7,14.1,13.8,10.2,8.8,8.1
2004,10.7,10.2,11.6,13.4,12.7,13.1,13.3,14,12.8,11.2,8.7,8.7
2005,7.8,9.5,12.7,13.9,13.8,13.1,13.7,13.9,13.2,11.5,10.3,7.3
2006,8.7,11.3,10.9,13.5,12.9,13.3,13.9,14.1,13,12.3,9.6,11.2
2007,9.9,10.7,10.6,13.1,13.6,14.1,14,14.3,13.5,11.2,10,7.2
2008,8.6,9.9,10.9,12.3,13.2,13,13.7,13.6,13.5,11.8,9.6,7.7
2009,8.9,10.1,13.6,12.7,12.9,13.4,14.4,12.9,13.3,10.9,9.8,9.6
