1901,10.6,11.2,11,11.6,12.2,12.3,11.5,11.9,11.1,11.1,11.2,11.2
1902,10.4,10.6,11.1,11.6,12.2,12.1,12.1,11.5,11.1,11.1,11.6,11.6
1903,10.8,11.8,11.2,11.1,11.5,11.9,11.5,11.1,10.9,10.7,10.8,10.4
1904,9.8,10.2,10.3,11,11.3,12.3,11.2,11.5,10.7,10.7,11.6,11.2
1905,10.4,11.2,10.6,11.4,11.8,12.7,11.8,11.5,10.7,11.2,11.5,11
1906,10.4,10.9,10.9,11.7,11.8,11.8,11.5,11.3,11.1,10.5,11.5,10.6
1907,10,10,11.1,11,11.8,12.2,11.3,11.3,10.9,10.8,11.4,11.4
1908,10.5,10.5,11,11.6,12,12.5,11.3,11.1,10.5,10.3,11,11
1909,10,10.3,11,10.9,12,11.4,11.2,10.9,10.9,10.8,11,10.8
1910,10.3,10.7,11,10.8,10.7,10.8,10.4,10.3,9.5,9.9,10.9,10.4
1911,10.2,10.8,10,10.8,10.9,11.9,11.4,11.5,10.5,11.1,11.9,12.3
1912,12.1,12.4,12.7,12.9,11.6,11.4,10.7,10.7,10.8,11.2,10.7,11.5
1913,11.3,10.9,11.6,11.5,11.3,11.5,11.7,11.7,11,12.3,12.9,12.1
1914,11.6,12,11.6,11.6,11.3,11.6,11.3,11.7,10.9,11.2,11.5,12.4
1915,12,12.8,12.3,12.9,12.2,11.9,11.8,11.7,10.4,10.6,10.9,11.8
1916,10.8,11.3,11.4,12.3,11.6,10.3,9.6,9.9,10.7,10.2,9.9,11.6
1917,11,11.5,12,12.3,12.1,12.6,11,10.9,10.2,10.3,11.6,10.4
1918,10.6,10.6,11.2,11.4,9.4,14.3,13,13.7,11.2,11,11.6,12
1919,11.8,12.3,11.7,12.3,12.7,11.5,10.8,11.1,10.7,11,11.4,11.1
1920,10.7,10.9,11.3,11.4,10.7,10.9,10.1,10.7,10.2,10.9,11.1,10.5
1921,9.9,10.2,10.7,10.8,11.6,9.5,9.2,10.5,9.5,10,11.4,11.1
1922,10.9,11.3,11.4,12.2,12.2,12.2,12.1,11.2,11.2,11.1,11.9,11.2
1923,10.4,10.9,11.3,11.3,12.2,12.6,12.1,11.9,11.6,11,12.1,11.6
1924,11.6,11.1,11.4,11.9,12.1,12.4,11.6,11.5,10.9,11.1,11.3,11.3
1925,10.4,10.2,10.7,11.6,12.5,12.7,11.5,12.5,10.9,11.7,12,12.1
1926,11.7,11.7,11.4,11.8,12.2,12.7,11.7,11.9,11.7,12.4,12.9,12.6
1927,11.6,11.6,11.9,11.8,12.1,12.4,11.7,11.9,11.8,12.5,12.9,12.8
1928,11.7,12,11.4,11.8,12.6,12.5,11.7,11.9,11.6,11.9,13,12.6
1929,11.8,11.7,11.9,11.8,12.2,12.6,11.7,11.7,11.4,11.9,12.6,12.6
1930,11.3,11.4,11.4,11.9,11.9,12.5,11.7,11.5,11,12.1,12.6,12.9
1931,10.7,10.6,11.3,12,11.7,12.1,11.6,11.7,11.4,12.3,13,12.4
1932,11.3,11.3,11.5,12,12.3,12.7,12.2,12,11.4,11.7,11.8,11.7
1933,10.6,11.4,11.4,11.9,12,12.3,11.6,11.6,11.4,11.7,11.9,11.8
1934,11,10.8,11.4,11.9,12.2,12.6,11.7,11.4,11.1,12.1,12.4,12.5
1935,11.3,11.5,11.8,11.8,11.5,12.4,11.7,11.5,11.5,11.5,12.3,12.1
1936,10.9,11.7,11.4,11.8,12.2,12.2,11.7,11.7,11.5,12,12.3,12.1
1937,11.3,11.2,11.9,12.8,12.7,13.5,13,13,12.2,12.2,13.2,12.7
1938,11.8,11.7,12,12.9,12.8,13,12.6,12.7,12.3,11.9,12.9,12.5
1939,11.4,11.6,12.1,13.5,13,13.9,13,11.9,11.8,12.7,12.5,12.2
1940,11.6,12.6,12.5,12.7,13.3,13.6,13,12.5,12.7,13.1,13.7,12.5
1941,12.2,12.3,13.1,12.9,13.8,13,12.8,13.1,12.8,13.5,14.3,13.6
1942,12.7,13.4,12.9,13.5,13.6,14.4,13.6,14,12.8,13.7,14.3,11.9
1943,13.3,13,13.5,14,13.3,14.1,13.8,13.2,13.1,13.6,14.3,13.6
1944,12.9,12.2,12.3,13.3,13.8,13.6,13.4,13.7,13.4,13.4,13.6,13.8
1945,12.7,12.4,11.9,13.9,14,12.6,12.8,13.7,13,13.3,14,12.6
1946,12.8,13.3,13,12.2,12.4,12.5,11.4,11.6,11.6,12.1,12.8,12.1
1947,12.5,12.7,12.9,13.4,13.6,12.3,11.5,11.5,11.1,11.4,11.9,10.6
1948,11,11.4,11.1,11.8,12.8,12.5,11.3,11.4,10.5,11.7,12,11.1
1949,12.3,11,11.8,11.6,11.1,11.5,10.6,10.6,10.2,10.4,11.6,11.1
1950,10,9.8,10.1,10.7,10.6,10.6,10.7,10.7,10.5,11.3,11.6,11.5
1951,10.8,9.1,10.1,10.9,12.2,13.1,12.8,12.3,11.5,12.1,12.2,11.3
1952,11.4,11.3,11.5,10.9,11.5,11.2,10.7,11,11,11.6,11.5,11.4
1953,10.9,11,11.7,12.3,12,12.1,11.5,11.7,12.2,11.6,12.1,11.3
1954,10.5,10.6,10.4,10.8,10.4,11,10.1,10.7,10.5,10.4,11.4,11.2
1955,10.9,10.7,10.6,10.4,11.3,11.4,10.4,10.5,10.2,10.8,11.3,11.2
1956,9.7,9.8,10.2,10.1,10.7,10.9,10.6,10.8,10.4,10.6,11,10.8
1957,10,11.1,11.9,12.4,13.4,13.7,12.7,12,11.4,11.9,12.8,12.7
1958,12.1,12,11.5,12.2,11.8,12.2,12.1,11.5,11.2,11.4,10.1,10.9
1959,9.9,10.6,11.2,11.9,12,12.5,11.7,11.1,10.8,11.4,12.1,11.8
1960,11.2,11.2,11,10.9,11.4,12.2,11.9,11.9,10.7,11.4,11.5,11.9
1961,11.7,11.1,11.3,11.3,12.2,12.1,11.3,11.7,11.3,11.7,12.1,11.4
1962,10.3,10.5,10.1,11.9,11.9,11.7,12.2,11.8,11.5,11.5,12.3,11.5
1963,10.5,10.4,10.9,11.7,12.4,12.1,12.5,12.8,11.6,11.9,12.3,11.9
1964,10.7,10.4,10.1,10.8,9.5,9.6,9.8,11.3,10.6,11.4,12,11.8
1965,10.4,9.7,10.6,11.5,11.5,11.6,10.6,12.7,11.5,12.2,12.6,12.2
1966,10.6,10.4,10.4,11,10.4,11,9.7,11.3,10.8,11.6,12.1,11.5
1967,9.8,9.6,9.4,10.8,10.7,10.6,9.7,10.8,10.7,10.7,11.4,10.8
1968,11,10.8,10.4,11,13.1,11.9,12.4,11.5,11.2,11.6,11.5,11.9
1969,11.7,11.8,12.2,12.8,14,13.9,12,11.5,11.7,12.4,12.8,12
1970,10.6,11.3,11.8,12.1,12.1,12.7,11.4,10.9,10.7,11.4,11.9,10.5
1971,9.5,10.5,10.3,11.2,11.9,12.3,11.7,11.1,10.9,11.3,12,11.4
1972,10.6,11.5,11.3,11.6,12.6,12.9,13.2,13,12.1,12.5,13,13.1
1973,11.8,12,11.7,11.8,12.5,13.3,11.6,11.1,10.4,11.1,11.3,10.8
1974,9.7,10.2,10.4,10.9,11.6,11.8,11.3,11,10.9,11.1,11.9,11
1975,9.6,11.7,9.9,11.6,11.4,12.2,12.2,10.8,10.4,11,11.2,11.3
1976,10.8,10.3,10.8,11.4,12.2,13,12.1,12.5,11.4,11.8,12.8,13.3
1977,11.9,11.5,12.5,13.2,13,13.3,12.7,12,11.8,11.5,12.7,11.8
1978,10.9,11.8,12,12.6,13.3,13.1,13.3,11.5,11.2,12.2,13.2,12.1
1979,12.3,11.8,12.3,12.7,13.7,14,12.5,12.4,12.2,12.4,12.8,12.4
1980,12.3,12.1,12.8,13.3,13.3,14.2,12.8,12.3,11.4,12,12.4,12.2
1981,11.7,11,12.2,12.4,13,12.9,12.5,11.9,11.1,11.2,11.9,12
1982,11.4,10.8,11.4,12.2,12.6,13.6,12.6,12.5,12,12.6,12.1,13.5
1983,13.2,13.4,13.7,14,12.5,15.5,14.4,13.7,12.4,12.2,12.8,12.7
1984,11.4,10.4,11.4,12,10.5,11.4,11.8,11.5,11.5,12.7,12.3,12.4
1985,11.4,10.8,12.1,11.7,11.2,10,10.6,11.3,11,11.9,12,11.9
1986,11.2,10.8,10.9,11.5,10.3,11.4,11.1,12.1,11.2,11.6,12.3,12.8
1987,12.3,11.5,13.7,13.5,12.2,12.6,11.2,12.5,12.4,13,13,12.6
1988,10.8,11.6,10.6,11.3,11.1,10.9,10.7,11.3,11.1,11.6,12.2,12
1989,10,11.5,11.3,9.8,10.8,10.2,10.2,11.6,11.2,11.9,11.9,11.9
1990,10.1,10.8,10.7,10.2,11.8,11.5,10.6,11.1,11.4,11.7,12.1,12.2
1991,10.3,11.6,12.3,12.1,12.4,12.9,11.9,11.8,11.6,12.3,12.6,12.5
1992,12.6,12.7,13.7,14,14,13.1,11.9,12,11,11.4,12.3,11.8
1993,11.3,12.2,12.4,12.4,13.2,13.7,12.7,12.3,11.7,12,12.2,11.9
1994,11.4,11.4,11.5,12.3,12.7,12.6,11.9,11.8,11.9,12.7,12.8,12.7
1995,12.3,12.1,11.7,12,12.4,12.7,12.6,12.3,11.9,11.9,11.4,11.6
1996,11.5,11.3,11.2,12,12.5,12.3,11.5,11.6,11.2,11.5,11.8,11.7
1997,11.4,11.1,12.7,12.5,14.1,14.6,12.6,11.5,11.6,12.4,12.4,13.5
1998,12.5,12.7,14.1,14.3,13.7,13.9,13.3,12.7,11.8,12,12.5,12.1
1999,11.3,11.9,12.2,11.9,11.5,12.3,12.3,12.3,11.5,12.2,12.5,12
2000,11.3,11,10.8,12.2,12.3,12.4,12,12.2,11.6,11.7,12.1,12
2001,11.4,12.2,11.7,12.2,12,12.1,11.1,11.3,11.2,11.5,12.1,11.7
2002,10.8,11.2,12.4,12.5,12.4,12.2,11.3,11.5,11.2,12,12.2,12.1
2003,11.6,11.9,12.5,11.2,11.6,11.8,11.9,10.7,11.3,12,12.9,12.4
2004,11.5,11.6,11.6,12.4,11.4,11.4,11.4,11.5,12,12.4,12.8,12.7
2005,12.1,11.2,12,12.1,11.9,12.1,11.8,12,11.4,11.4,11,10
2006,11.4,10.9,12.8,11.6,11.4,13,12.8,12.6,11.6,11.7,12.8,12.2
2007,12.3,11.2,11.7,12.1,11.6,11.4,11.4,11.5,10.5,10.7,11.6,11.3
2008,11.4,11.4,12.2,11.8,11.1,12.4,12.6,12.7,11.9,11.9,12.8,12.3
2009,11.8,11.7,12.2,12.1,12.2,12.9,11.9,12.5,12.1,12.2,12.9,12.3
