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