1901,10.9,10.7,9.4,8.7,7.5,6.6,5.8,5.8,6.9,8.3,8.5,9.8
1902,11.3,11,10,8.3,6.8,6.2,6,5.9,7.1,7.2,8.2,9.2
1903,10.2,11,9.9,8.3,7.2,5.7,5.6,5.5,6.4,8.1,9.1,10.5
1904,11.6,11,9.7,8.5,7.9,6.7,6,5.8,6.4,7.3,8.3,10
1905,10.4,11.2,10.5,8.2,7.1,5.9,5.9,6.1,6.3,7.1,8.5,10.2
1906,10.5,10.2,9.4,8.2,7.3,6.7,5.8,6.1,6.9,7.9,8.5,10.8
1907,11.6,12,10.7,9.1,7.5,6.1,6,5.9,6.5,7.2,9.1,11.2
1908,11.7,11.2,10.1,8.4,7.7,6.6,5.4,5.9,7.6,7.9,9.1,9.9
1909,10.7,11.7,10.5,8.4,8,6.7,6,6.5,7,7.9,9,11.3
1910,11.4,11.4,10.6,8.3,8.3,6.9,5.5,6.5,7.1,8.2,9.4,10.9
1911,11,11.5,11.4,9.8,8.2,6.5,6,6.8,6.9,7.7,7.7,9.2
1912,10.8,9.8,9.2,8.6,6.9,5.9,5.6,6.3,6.7,7.4,8.5,11
1913,11.1,10.4,10.2,8,6.5,6.3,6.1,6.3,7.4,7.9,8.9,10.1
1914,12.6,10.9,10.3,8.7,6.7,6.3,6.1,6.3,7,7.6,8,9
1915,11.1,10.3,9.8,8.5,7.4,5.7,6.4,6.7,7.8,8.4,8.8,10.2
1916,11.1,11.7,11.6,9.5,7.6,7.1,5.9,5.9,7.2,7.9,9.1,11.3
1917,12.5,11,10.5,9,7.9,6.7,6.3,6.2,7.6,8.5,9.4,10.2
1918,11.1,12.1,10.8,8.7,7.3,6.2,4.8,6.2,6.9,7.8,8.1,9.8
1919,10.1,11.1,9.9,8.5,7.5,6.7,5.9,6.3,6.9,7.5,7.8,10
1920,10.3,11.5,10.2,9.1,7.3,6.8,6.7,5.2,6.7,7.7,7.9,10.1
1921,11.3,10.9,10.2,8.1,7.9,6.5,6.2,6.2,7.4,7.9,8.7,9.7
1922,11.6,11.8,9.2,8.8,7.8,5.8,5.7,6.8,7.7,8.9,9.2,10.7
1923,12.3,10.1,9.6,7.7,7.3,5.9,5.1,6,7.5,7.8,9.7,10.9
1924,11.7,12.2,10.6,10,7.7,6.6,6.4,6.7,8,8.7,9.6,10.9
1925,11.4,10.9,10.4,8.9,8.1,6,6.9,7,6.2,8,7.8,9.8
1926,11.4,10.6,9.4,9.6,7.3,6.9,6.2,6.2,6.9,7.2,8.5,10.2
1927,11.5,11.5,9.7,7.8,7.3,5.5,5.8,5.9,6.5,7.3,7.7,9.9
1928,11.7,12.1,10.8,9.3,8.1,6.4,6.7,6.8,6.7,8,9.1,10.2
1929,11.4,11,9.9,8.6,8,7.3,6.2,6.7,6.8,7.7,8.1,9.4
1930,10.9,11,9.5,8.4,7.5,6.1,5.3,6,6.4,7.1,7.9,10.3
1931,10.5,10.7,9.6,8,7.8,6.3,5.6,5.8,6.6,8,8.8,10
1932,10,10.5,10.3,8.7,7.1,6,5.7,5.9,6.6,8.2,8.9,10.4
1933,11.4,11,10.3,8.3,6.8,5.8,5.9,6.3,7.3,7.6,8.4,10.8
1934,10.5,11.4,9.7,9.3,7.3,6.2,5.6,6.4,7,7.8,9.7,12
1935,11.8,12.5,11.2,9.2,7.2,6,5.5,6.4,6.2,7.7,8.3,12
1936,11.5,11.1,9.2,9.2,7.5,6.5,5.7,6.7,6.7,8.2,8.6,9.8
1937,10.8,10,9.8,8.2,7.2,5.6,5.5,6.7,6.8,7.5,8.6,11.2
1938,11.6,12.9,10.9,9.7,8.6,6.1,4.8,6.5,6.9,8.1,8.8,9.9
1939,9.6,10.8,10.4,8.5,7.5,7,4.8,5.6,6.8,7.8,9.3,11.3
1940,11.2,10.1,9.7,8,7,6.8,6,6.5,7,7.7,8.7,11
1941,11.7,11.2,11,8.4,7.7,5.7,6.4,5.9,7.3,7.8,8.9,10
1942,11.1,11.9,10.1,8.8,7.6,7.9,6.3,6.2,8.3,8,9.1,9.7
1943,11.4,12,10.3,9.8,8.3,6.6,7,6.4,7.5,8.8,9.8,10.6
1944,11.6,11.7,12,10.2,8.1,5.4,6.8,6.2,6.9,7.6,8.6,11.3
1945,12.6,11.5,11.3,8.9,7.6,6.1,6,6.3,7.2,7.4,9.1,10.1
1946,11,11.5,11.1,8.9,8.4,6.4,6.3,6.5,7.1,7.8,8,9.8
1947,11.1,11.6,11.3,8.7,7.8,5.6,6.3,6.4,6.7,7.7,9.7,10.6
1948,11,10.8,10.6,8.5,8.2,6.5,6,6.6,7.3,8.6,9.1,10.4
1949,11,11.4,9.6,8.5,8.3,5.6,5.7,6.2,6.7,7.9,9.1,10.6
1950,12.4,10.1,9,8.1,7.9,4.8,6.5,5.6,7.3,8.5,9,9.6
1951,11.4,11.1,10.9,9.9,8.5,6.4,7,6.3,7,7.4,10.1,10
1952,10.7,11.3,9.5,9,6.9,5.7,6.4,7.1,7.9,7.7,9.1,11.1
1953,12.5,11.3,10,8.1,7.4,6.3,6.5,6.8,6.7,7.6,8.9,11
1954,10.3,11.6,11.7,8.9,8.9,6.2,6.7,6.2,7,7.6,9.2,10.3
1955,11.6,10.7,10.2,8.5,8.4,5.3,6.2,6,7.1,8.9,10.1,10.8
1956,13.2,10.2,9.9,9.2,8,7.4,5.5,6.7,7.5,8.6,9.6,12.3
1957,12.8,12.1,12.2,10.3,7.6,6,5.8,6.2,7.1,7.6,8.9,9.6
1958,10.9,11.3,10.3,7.9,7.4,6.5,5.2,6.1,7.3,8.4,9.4,10.2
1959,11.1,11.2,10.3,9.2,6.6,6.6,5.7,6.7,7.4,7.3,8.1,10.2
1960,10.7,11.4,10.5,9.5,8.1,6.7,6.5,6.2,7.3,8.8,9.7,9.7
1961,11.1,10.1,9.6,8.4,7.6,6.4,5.2,6.4,6.3,8.5,8.7,11.1
1962,11,11.7,10.8,8.9,8.5,7.5,6.8,6.6,7.4,8.8,9.6,11.1
1963,11.6,11.7,10.1,8.6,7.2,5.7,5.4,5.3,6.6,7.4,7.1,8.7
1964,10.6,11,9.7,8.1,7.3,6.1,6.1,5.3,7,8,8.5,11.2
1965,12.3,10.7,11.3,8.5,7.4,6.6,6.1,5.8,7.3,6.9,8.5,8.9
1966,10,11.3,10.3,9.2,7.6,6.5,5.8,6.5,7.2,7.4,9.2,9.6
1967,11.8,10.3,10.8,8.1,6.7,6.8,5.9,6.5,6.8,8.6,8.3,10.2
1968,10.8,11.1,10.3,9.6,8.8,6.5,6.4,7.5,6.8,7.8,9.2,10.8
1969,12.2,11,9.5,8.2,7.5,5.8,7.2,6.8,7.9,7,9.1,11.2
1970,10.3,11.3,10.3,8.5,7.5,7.1,6.9,7.3,6,7.8,9.1,11.3
1971,11.5,11.6,11,9.7,8.8,7.1,7.2,7.3,6.6,8,9.2,10.9
1972,11.8,11.5,10.6,8.3,7,5,5.8,5.6,7.3,7.4,8.2,9.6
1973,11.3,10.7,11.3,8.4,6.4,6.7,6.8,6,7.4,7.3,8.4,10.1
1974,11.1,11.8,10.3,9.3,7.8,5.7,4.9,6,7.7,7.7,9.3,11.6
1975,13.4,12.1,10.6,9.5,7.3,6.1,6,5.6,7,7.4,8.6,8.8
1976,10.4,10.1,10.2,9,7.8,5.7,5.7,5.6,7,7.3,8.9,11.5
1977,11.4,11.6,10.2,9,7.3,5.7,5.8,7,7.2,7.4,9.3,11
1978,11.9,11.8,10.1,9.5,8.2,5.7,6.4,7.3,7.7,8.4,9,10.3
1979,10.6,10.4,10.1,9.7,7.6,7.4,7.4,6.3,7,8.5,9.5,11.2
1980,11.8,12.2,11.3,9.5,8.2,6.7,6,6.7,7.2,8.3,8.1,9.7
1981,10.6,10.8,10.8,9.7,8.3,6.8,6.7,6,7,8.1,9.2,10.7
1982,11.3,11.5,10.8,9.5,8.8,7.2,6.2,7.1,7.4,7.4,7.7,9.3
1983,11.2,10.7,9,8.3,6.8,6.3,6.3,7,6.1,8.3,10,10
1984,11.4,12.6,11.8,9.1,7.5,7.4,6.4,6.3,7.8,8.4,8.7,11.2
1985,12.6,12.2,10.4,9.4,8.2,8,6.8,6.9,8,8.5,9.3,10.8
1986,12.6,12.6,11.3,10.3,7.6,6.9,5.9,6.3,7,8.8,9.7,11.5
1987,13.1,12.2,11.5,9.1,8.6,6.1,6.2,6.8,6.4,8.2,9.6,10.2
1988,10.8,11.9,9.5,8.3,6.3,6.3,6.4,6.2,7.2,8.3,8.6,11.2
1989,12.7,11.4,10.5,9.2,8.5,7,6.5,7.7,8.5,9.3,9.3,10.3
1990,11.2,11.9,10.3,8.2,7.8,7.3,6.8,6.8,7,7.8,9.8,9.9
1991,11.5,10.8,11.3,8.7,7.6,5.5,6.2,7.5,6.9,8,9.2,9.7
1992,11.5,10.6,9.4,8.7,7.1,6.2,6.3,4.4,6.7,7.9,9.4,9.6
1993,10.8,11.5,10,9.3,8.4,7.2,7.9,7,6.7,8.3,8.9,10.3
1994,11.6,11.6,10.4,9,7.9,5.9,6.3,6.6,6.7,7.6,8.5,9.5
1995,10.6,10.8,9.8,9.9,8.6,4.5,5.2,6,6.8,7.2,8.3,10.2
1996,11.8,11.2,10.3,9.4,7.7,6.1,5.2,6.1,8,8.1,9,11.1
1997,11.5,11.6,10,8.7,8,7,6.9,6.7,6.1,7.2,7.5,9.5
1998,10.6,11.8,9.6,8.7,7.5,6.8,6.4,5.8,7,7.6,8.9,10.7
1999,11.6,12.7,11.4,8.9,8.9,6.8,6.4,6.3,7.7,8.1,9.3,9.5
2000,11.4,10.6,9.8,8.6,9,6.8,7.2,6.2,7.3,8.8,8.3,10.9
2001,10.7,10.6,10.5,9.4,6.5,7,6.4,6.8,7.6,8.9,9.3,11.2
2002,11.8,12.5,9.6,8.9,6.3,5.7,6.1,6.3,7.2,8.3,9.1,11
2003,11.3,10.4,10.4,8.6,7.5,6.8,6.1,7.1,7.4,7.9,8.5,9.3
2004,11.8,10.6,9.8,8.4,8,7.2,7,5.7,7.2,7.3,9.1,9.5
2005,11.2,12.1,10.3,9.1,7.5,6.3,7,7.9,7.1,8.3,9.2,12.8
2006,11,11.6,9.6,9.5,7.5,6.3,6.7,6.3,7.9,7.9,8.5,9.6
2007,11.3,11.3,11.5,8.4,9.5,6.4,5.5,6.9,7.2,7.4,8.7,11.3
2008,11.8,12.3,10.9,8.6,7.1,7.4,6.2,6.1,7.4,7.7,8.9,10.5
2009,11.9,10.3,10.8,9,6.8,6.4,6.2,7.5,7.2,7.2,8.5,9.6
