1901,12,11.7,11.7,9.3,8.6,5.1,4.8,5.9,8.6,7.1,11.3,11.5
1902,12.1,13.8,10.1,8.9,8,6.5,5.4,4.6,5.5,8.5,10.4,10.6
1903,12.8,13.1,12.5,9.3,6.5,5.5,5,5.7,5.4,7.7,11.1,11.2
1904,13.6,11.8,10.3,10.1,8.5,5.1,5.4,5.5,6.3,8.9,10.5,11.9
1905,13.4,13.1,11.4,9.4,8.3,5.9,5.4,6.2,6.6,8.2,9.8,10.6
1906,12.9,12.4,12.2,9,7.4,6.2,5.7,5.8,7.2,8.9,8.5,11.2
1907,12.4,14,10.6,9.3,8.7,6.5,5.8,6.9,7.2,10.1,10.8,10.4
1908,14.2,13.3,11.8,8.3,7.6,7.3,5.3,5.9,6.9,8.8,11.5,12.1
1909,11.4,11.8,12.1,10.6,8.1,5.8,5.3,5.1,7.1,9.1,11.7,11.8
1910,12.8,13.3,12.4,9.2,8.3,5.6,5.1,7.3,7.9,10.3,12.5,10.7
1911,12.5,12.3,12.2,9,8.2,5.6,4.8,6.8,7.4,9.6,11.9,11.4
1912,12.6,14.2,12,10.2,7.5,6.2,5.2,6.6,7.3,11.1,12.8,11.8
1913,12.4,13.2,10.4,9.2,7,5.8,6.3,6,6.9,9.5,11.7,12.6
1914,12.6,11.9,12.7,9.7,8,6.9,5,7.1,7.2,7.9,9.3,11.9
1915,12.6,13.2,11.1,9,7.7,6.1,5.7,6.5,7.6,9.4,11,12.9
1916,12.9,13.4,11.8,8.9,7.5,5.8,5.6,6,7.1,7.7,8.4,11.7
1917,12.5,12.9,11.1,8.6,6.7,6.2,6,6.8,7.4,9.2,10,11.8
1918,13.2,12.7,12.2,9.8,8.4,6.3,5.5,7.2,7.7,8.2,9.1,11.7
1919,12.1,14,11.5,10.5,7.7,6.8,5.4,6.3,7.7,8.6,10.2,10.7
1920,11.7,13.8,11.6,9.5,7.5,6.1,6.4,6.7,7.8,8.8,9.8,11.6
1921,13.7,13.8,12.2,9.9,8,7.5,6.5,6,8.7,8.2,11.9,11
1922,12.9,13.6,11.4,9.8,8.3,6.1,6.3,6.2,7.3,9.1,9.9,11.7
1923,11.9,12.5,11,9.9,7.5,6.4,6.3,6.6,6.9,8.3,9,11.6
1924,11.5,12.1,12.3,9.8,8.2,6.3,5.8,7,7.3,8.3,10.2,10.5
1925,12.8,12.6,11,9.9,8.3,6.9,5.7,5.7,6.5,8,9.5,10.9
1926,12,13.3,12.4,10.5,7.3,8.3,6.8,6.4,7.5,9,9.8,11.3
1927,12.6,12.5,10.9,8.9,7.6,5.7,5.4,6.1,6.9,8.6,10,12.7
1928,14.1,13.5,13.7,11.7,8.5,7.1,7.1,7.6,6.7,6.5,9.2,11.3
1929,12.5,14.2,11.4,10,8.3,5.9,5,5.9,6.4,8.1,9,10.3
1930,11.5,13.8,12.5,9.6,8.7,6.5,7.2,6.5,7,9.3,9.5,11.9
1931,11.2,12.6,12,9.6,9.1,6.6,5.1,6,6.5,7.8,9.2,10.3
1932,12.5,12.2,12.2,10.2,8.5,6.7,5.8,6.6,7.3,7.8,10.2,10.8
1933,11.2,11.2,11.2,8.8,7.6,6.6,6.2,5.2,7.4,8.9,9.8,11.8
1934,13.1,13.8,13.2,9.6,9.3,5.8,6.1,6.8,7.4,8.4,10.9,11.6
1935,12.3,13.6,11.5,10.4,7.7,6.4,6.4,6.8,7.1,8,10.4,11.7
1936,13.1,13.6,12.1,8.7,7.8,5.3,5.6,5.1,5.6,8.2,8.9,12.4
1937,11.3,12.9,11.9,8.3,7,4.8,5.4,6.8,7.5,9.6,10.7,11.5
1938,12.6,13.4,12.2,10.3,8.4,5.4,5,6,7.3,8.7,10.4,10
1939,11.8,12.6,11.6,10.8,9.6,6.5,5.3,5.4,6.6,8.8,10.6,10.5
1940,11.9,10.6,12.2,8.7,7.2,6.2,4.9,6.6,7.7,8.8,9.6,11.9
1941,11.7,12.2,10.7,9.8,7.6,6.3,5,5.4,6.8,7.7,9.5,11.1
1942,12,12.7,12.4,9.5,7,6.6,4.9,5.9,7.6,9.9,10.8,11.8
1943,12.7,12.2,11.3,8.4,6.2,4.7,4.7,4.6,7.4,7.9,9.5,10.9
1944,13.3,12,11.8,7.8,7.6,5.3,5.6,5.2,6.7,7.9,9.3,11.8
1945,12.8,12.1,9.6,8.6,7.3,6.3,4.9,6.1,7,8.2,10.8,11.8
1946,12,11.9,12.5,8.7,7.3,5,5.3,4.5,5.6,7.3,8.8,11.1
1947,12.8,14.3,13.2,10.1,9.5,5.9,5.3,5.2,7.1,8.1,9.8,12.2
1948,13,13.4,9.9,8.9,6.5,5.9,4.7,6.5,7.6,7.4,9.3,10.6
1949,11.8,9.9,11.3,8.1,7,5,6.1,5.9,6.8,8.1,10.6,9.8
1950,11.7,12,11.1,9.3,7,6.1,6.5,6,8.6,10.2,10.7,13
1951,15.7,13.8,12.5,7.9,7.8,6.2,5.4,4.8,7.8,8.6,9.1,11
1952,11.7,11.4,12,8.6,7.5,5.5,5.6,5.6,7.3,8.7,9.9,12.1
1953,13.9,13.9,12.9,9.2,8,4.8,4.7,5,6.4,8.7,9.2,10.2
1954,13.7,11.9,10.7,9.8,7.6,6,5.4,5.8,7.5,8.1,9.7,12.9
1955,12.6,13.2,11.5,10,6.9,5.5,5.3,5.9,7.1,8.9,8.6,12.8
1956,13.2,15.6,13.8,10.7,8.6,6.3,4.9,5.3,7.9,8.3,8.5,9.9
1957,11.2,13,11.4,9.4,7,7,5.6,6.8,7.1,7.4,8.8,10.8
1958,11.3,12.8,10.5,9.3,7.7,5.9,4.8,5.2,6.8,7.4,10.9,10.7
1959,14.5,13,11.8,10.7,7.3,6.2,5.8,5.4,6.2,8.3,11.3,12.6
1960,14.5,11.9,12.7,8.9,6.9,5.6,5.5,5.3,7.1,8.8,8.7,13.4
1961,15,13.7,12.5,10.9,7.8,6.4,5.5,6.7,7.9,10,10.9,12.2
1962,13.7,12.8,12.3,9.7,7.5,7,5.7,5.2,6.7,7.2,9.7,11.7
1963,13.9,12,11.7,8.6,6,5.9,5.1,5.7,7.2,10.3,10,11.7
1964,11,12.1,10.7,10.2,7.7,6.5,4.7,5.7,7.6,8.9,9.8,9.5
1965,11.2,12.4,11,8,7,6.3,4.8,6.1,7.4,8.8,8.8,12.5
1966,13,13.1,12.7,9.2,7.7,5.3,4.9,5.4,7.7,8.8,10.8,11.3
1967,12.1,13.3,11.5,9.5,8,7,6,5.9,6.9,8.9,8.9,10.2
1968,12.6,13.4,12.8,10.1,6.7,5.6,5.4,5.6,6.7,7.3,8.5,11.5
1969,13,14.3,12.3,9.3,7.7,5.7,6.3,6.4,5.6,8.2,10.5,9.6
1970,13.4,12.5,11.9,10.5,7.2,7,5.4,5.1,5.3,7.9,10.6,11.2
1971,14.4,15.5,13.7,11.2,8.2,6.4,5.9,5.3,6.6,8.1,9.7,12.6
1972,13.4,16.1,12.1,10.6,8.4,6.8,5.2,6.6,8.3,8.9,10.4,11.1
1973,13.4,14.1,11.1,10.7,8.4,5.5,6.4,6.3,8.1,9.9,10.2,13.8
1974,15.2,14.3,14.2,10.6,8.8,7.4,5.8,6,6.9,9.5,9.8,11.5
1975,12.2,13.5,11.6,9.3,7.9,6.3,6.6,5.8,8,8.7,11.2,12.6
1976,13.9,14.4,12.6,10.4,8,6.1,5.6,5.1,7.2,7.5,10.8,11.9
1977,13.7,14.1,13.1,9.3,7.8,6.1,5.7,6.9,7,9,9.5,10.8
1978,12.6,12.6,11.5,9.4,8.9,6,5,5.3,8,9.1,10.7,11.5
1979,14,13.6,12.6,9.5,7.3,7.7,6.2,5.4,7.1,9.1,10.7,11.2
1980,11.9,12.2,10.8,11,9.9,7.3,6.3,7.5,8,9.7,10.4,13.2
1981,15,15.2,12.7,10.7,8.6,6.9,5.8,6.4,8.3,9.5,10.5,12
1982,13.6,13.8,12.3,9.9,8,6,5.2,7.3,6.6,8.1,10.2,11.2
1983,11.6,14.6,11.8,9.4,8.5,5.6,5.4,7.3,6.7,8.7,10.3,12.4
1984,12.9,13,11.8,9.4,8.2,7.5,5.8,6.1,6.8,8.7,11.4,10.6
1985,12.4,12.2,13,11.7,9,5.9,5.8,6.7,7.5,9.6,11.3,12.8
1986,13.1,12.7,12.9,9.7,7.8,5.6,5.6,6.3,7.3,8.6,10.2,11.6
1987,11.6,12.2,10.6,10.5,8.5,6.3,5.6,6.2,7.6,8.6,11.4,11.7
1988,14.3,12.4,11.8,10.6,9,8,7.2,6.8,8.5,8.1,11.1,12.9
1989,14.3,14.6,13,11.8,7.9,5.4,5.7,6.2,8.2,8.7,11.1,12.8
1990,13.5,13.7,13,10.9,8,6.6,5.9,5.3,7.6,9,10.7,11.2
1991,13.2,12,11.1,8.9,7.7,7.4,6.1,5.1,6.9,8.6,9.3,11.1
1992,11.2,12.1,11.9,10.1,8.1,5.4,5.6,5.6,6,9.1,10.3,12.5
1993,13.3,13.8,11.8,10.5,8.1,5.5,6.6,6.9,7.6,8.2,9.1,11.2
1994,11,13.7,11.7,9.9,7,5.9,6.2,5.1,5.7,8.2,8.6,12.5
1995,13.8,14.1,11,8.3,7.6,5.8,4.8,6,6.5,7.7,9.6,9.7
1996,13,12.2,11.9,8,7.6,6.2,6,5.4,6.4,8,8.9,10.2
1997,13.8,13.6,10.7,9.2,7.4,6.5,5.8,5.6,7.3,8.2,9.4,10.5
1998,13.9,12.4,11.2,8.8,7.8,6.2,6,6.4,8.1,7.7,10.1,12.4
1999,14,14.7,12.2,9.3,9.2,7.2,6.5,7,8.7,9.9,9.9,12.3
2000,13.5,14.6,12.5,10.1,7.9,7.2,6.7,6.4,7.5,8.4,12.6,11.5
2001,14.7,15.1,13,10,8,6.9,7.1,6.7,9.3,9.3,10.3,10.4
2002,13.3,13.5,12,10.8,8.8,7.1,6.7,6.7,7.2,8.6,11,12
2003,14.1,13.8,11.9,10.3,9.1,6.9,6.2,6.5,6.1,7.5,10.3,12.7
2004,11.7,12.4,11.6,9.5,7.2,6.3,5.4,5.6,7.1,9,10.2,12
2005,13.1,12.6,11.4,10.7,7.8,7.7,6.8,6.5,8,9.9,11.7,12.9
2006,13.2,13.1,12.3,7.9,6.8,6.2,6,7.5,7.7,9.1,9.4,11.4
2007,13.9,14.9,12.4,10.5,10.3,5.8,6.1,7.1,8,8.7,11.2,13.2
2008,14.1,12.5,12.4,9.9,8.7,7.6,5.4,6.2,7.6,9.2,10,11
2009,12.9,13.2,12.2,9.9,8.5,7.1,6.2,7.4,7.9,8.4,11.6,12.5
