1901,13.3,12,11,10.5,8.6,6,3.8,5.8,6.7,7.7,10.7,12.3
1902,11.5,11.1,12.9,10.5,8.2,4.9,4.5,5.6,7,7.3,9.7,11.2
1903,13.2,12.3,9.5,8.9,8.2,7.1,5.8,5.9,6.5,7.2,10.6,11
1904,11.7,11.4,12,10.2,7.4,7.3,5.3,5.5,7,7.9,10,12.4
1905,11.7,11.5,10.6,10.3,9.5,5.2,4.8,4.2,6,6.9,10.4,13.6
1906,13.9,13.4,11.9,10.9,9,7.1,5.4,5.8,5.6,7.9,9.6,13
1907,11.9,13.9,11.6,9.3,7.2,7.3,6.3,6.9,7.2,7.5,8.5,11
1908,12.4,12.4,10.9,9.8,7.9,5.1,4.8,4.6,4.9,6.8,9.7,12.7
1909,13.1,12.3,11.6,9.5,7.8,6.3,3.9,6.2,6.6,8.4,9.7,12.6
1910,13.4,13.2,11.9,10.8,8.6,6.7,6.1,5.9,7.1,5.8,9.5,11.2
1911,13.6,12.2,11.6,9.5,7,5.1,6.2,6.1,6.2,8.1,12.1,12.2
1912,14,15.6,14.4,11.3,9.2,5.9,6.6,5.7,6.2,8.5,10.3,14.1
1913,12.9,13.7,12,11.5,8.1,7.4,5.6,6.9,7,8.4,11,12.1
1914,13.6,13.3,12.6,9.3,7.8,6,5.4,6.4,7.9,11.5,11.5,13.8
1915,13.5,14.1,11.7,11.5,9.7,9,7.1,6.7,6.3,8.4,11.4,13.1
1916,12.6,13.2,12.7,8.7,8.6,6.1,4.5,4.9,8.1,7.2,10.5,11.6
1917,12.5,11.8,12.1,10.1,7.6,6.9,6.5,5.2,5.9,6.6,9.9,11.1
1918,14.1,13.9,11.5,12.2,8.7,7.7,5.3,6.1,8,7.4,12.3,12
1919,13.1,13.4,14.2,10.3,7.2,6.9,7.8,6.5,5.1,7.3,10.8,12.2
1920,14.3,12.4,12.4,9.6,8.3,7.6,4.5,5.8,7.1,8.1,11.5,12.2
1921,13.6,16,13.5,10.2,11.4,7.2,7.1,6.3,7,8.2,9.3,12.8
1922,12.8,14,13.5,10.7,7.2,6.8,4.6,5.8,6,7.5,10.9,10.3
1923,12.5,14.8,13.7,11.9,9.1,7.4,5.4,5.8,6.3,8,11.1,12.4
1924,12.1,12.4,11.4,11.4,8.6,6.6,5.3,4.6,7.3,6.7,9.8,12.4
1925,12.3,12.3,14,10.9,8.8,6.7,4.2,4.9,5.9,7.1,12.1,13.8
1926,14.6,12.8,12.5,10.3,8,5.8,6.9,5.2,6.7,8.6,11.3,11.9
1927,12.2,12.8,12.7,11,6.7,6.2,5.6,6.2,8.1,8.6,11.4,14
1928,13.2,12.7,12.8,10.6,7.4,6.7,5.5,6,7.2,7.4,11.6,13.3
1929,12.2,14.5,12,9.6,8.7,6.6,5.2,5.9,6.4,8.2,10.7,12.7
1930,13.5,14.3,15.6,10.9,9.7,9.5,5.6,6.8,7.5,7.8,11.1,12.6
1931,13.3,12.3,12.9,10.6,7.4,4.8,7.8,6.5,6.2,7.7,10.1,14.5
1932,15.8,13.9,12.5,10.4,9.5,6.7,7.5,5.1,6.8,8.1,10.5,12.2
1933,12.5,15,13.1,10.1,7.6,8.2,5.6,5.8,7.3,7.6,10.4,13.1
1934,15.3,15.4,13.9,10.3,10,7.1,5.6,6,6.7,6.5,8.9,12.2
1935,13.3,13,12.9,9.6,8.5,6.1,5.8,5.6,5.9,7.3,10.8,12.5
1936,13.6,13.7,14.7,10.6,7.7,6,5.1,6.8,7.6,8.2,12.3,14.2
1937,13.5,14,13.7,11.6,9,5.8,4.4,4.9,6.6,8.4,11.5,12.1
1938,12.5,13,12.7,11.8,8.6,6.5,6.4,6.3,8.3,7.9,11.8,13.4
1939,13.7,14.1,13,11,8.9,5.9,6.5,5.7,7.5,8.4,9.9,12.8
1940,13,14,13.5,8.9,7.7,7.8,5.8,6.2,7.4,9.5,10.3,12.2
1941,13.2,13.9,12.1,10.4,8.8,8.3,6.7,7,6.5,7.5,10.6,13.2
1942,12.8,13.2,13.2,10.9,9,7,5.1,6.1,6,7,10.3,13
1943,13.4,13.1,14.5,10.8,8.1,7.5,4.6,4.5,6.3,8.1,10.6,12.6
1944,14.4,14.3,13.5,10.9,7.6,7.2,6.8,7.1,7.3,9.6,12.2,11.4
1945,13.5,14.6,14,14.1,10.7,8.9,5.8,6.8,6.9,8.8,10.9,12.6
1946,13,12.5,12.2,11.7,8.9,7.1,7,5.3,8.1,9.4,9.7,13.3
1947,14.2,15.6,14.1,11.5,9,8.7,6.2,5.7,6.5,8,10.3,12.1
1948,14.8,15.3,15.4,10,8.1,6.9,6.3,7.1,7,8.8,9.7,11.7
1949,14.4,14.4,12.9,11.9,8,7.3,8.2,7,6.8,8,11,14.1
1950,14.2,14.2,14,12.1,10.7,7.4,6.3,6.9,7.4,7.8,10,13.7
1951,15,14.7,13.9,10.9,8.6,8.6,6.3,4.3,8.4,8.8,11.3,13.1
1952,14.1,14.3,13.2,11.1,8.1,8.6,4.5,6.5,6.2,7.4,9.4,11.1
1953,13.6,13.5,15.2,12.1,10,7.8,6.1,6.1,7.5,8.1,9.6,11.8
1954,15.2,14.1,13.7,9.1,7.5,6.9,6.8,6.1,7.7,9.4,9.9,13.4
1955,14.7,16.1,13.9,10.8,8.4,6.9,5.7,6.1,6.1,7.3,9.5,11.6
1956,14.9,15.7,13.9,9.6,8.7,5.9,5.9,4.1,6.1,7.2,10.4,12.7
1957,14.9,14.2,13.6,10.9,8.5,10.1,5.6,7,7.1,9.6,11.6,13.6
1958,15.2,15.1,15.2,11.8,10.3,8.1,6.5,6.5,6.3,7.8,11.1,15
1959,14.8,15,15.6,12.1,10.5,9.3,6.7,7.5,7.7,9.3,10.4,11.8
1960,13.1,14.9,12.7,9.8,7.8,6.2,6.1,5.2,7,8.9,10.3,13.4
1961,16.4,15.9,15.7,11.1,9.4,7.9,7.1,6.8,8.8,9.2,11,13.8
1962,14.4,14,12.9,11.9,10,8.8,5.7,7.2,6.9,7.3,10.9,14
1963,15,14.9,14.5,10.4,9.7,7.3,6.3,6.7,7.7,10.1,11.3,14.3
1964,13.8,14,13.5,10.3,8,9.4,7,6,6.2,6.6,9.6,11.3
1965,15.2,14.1,13.2,13,8.4,7.2,6.5,5.5,6.6,9.8,10.7,13.6
1966,14.4,13.7,13.4,10.2,8.4,6.2,6.6,5.3,6.3,8.2,11,11.9
1967,13.3,14.4,12.4,12.2,8.7,8.2,5.4,5.4,6.4,10,10.7,12.8
1968,14.1,13.8,11.7,10,6,7.8,5.5,4.9,5.7,7.6,8.6,12.4
1969,12.7,13.3,12.8,10.5,9.1,7,5,5.8,5.1,8.5,10,11.7
1970,12,14,12.6,9.6,8.4,6.8,6.5,5.1,7.1,7.3,10.3,12.4
1971,14.3,14.2,13.6,11.8,8.4,7,5.8,5.2,6.4,7.1,9.4,10.9
1972,13.8,14.4,13.1,10.9,10.6,7.6,6.3,6,6.7,8.8,11.4,14.4
1973,14.4,13.9,13.2,12,8.8,6.2,7.1,5.7,6,8.2,10.8,12.1
1974,14.8,13.6,14.8,10.6,9.1,6.9,6.3,5.7,7.1,8.3,9.9,13.3
1975,13.1,15.8,12.4,11.2,8.3,6.7,6.7,5.4,6.3,7.8,10.6,12.3
1976,13.8,14.8,13.9,11.7,9.3,6.9,7,6.5,7.8,9.3,9.4,12
1977,14.5,14.9,12.1,10.3,8.5,7.5,6.6,7.2,7.1,8.8,10.6,14.4
1978,15.1,15,14.1,12.1,8.9,7.4,6.4,6.4,6.6,7.7,10.6,13.4
1979,14.5,15.4,13.9,10.1,7,7.8,6.1,5.4,6.1,8.3,11.1,12.7
1980,13.6,12.6,12.7,9.8,8.8,6.8,6.1,6.5,6.5,6.6,11.4,12.4
1981,13.4,12.5,12,11.9,8.7,6.1,5.9,5.8,7.4,8.7,9.8,11.6
1982,13,13.7,11.8,9.5,8.4,6.2,5.7,7.2,7.1,8.8,12.5,13.8
1983,14.8,15,13.8,11.9,9.6,9.2,6.6,8.1,8.1,8.9,10.8,12.9
1984,13.6,14.3,12.2,11.7,9.2,6.9,6.9,6.2,6.8,9.1,11,11.5
1985,13,16.6,14.8,10.8,8.8,9,7.2,6.8,7.7,8,11.4,11.6
1986,13.9,13.5,12.5,9.8,8.9,6.4,5.4,5.2,7.4,6.6,10,10.7
1987,12.3,13.2,13.5,11.8,8.2,7.9,5.8,6,7.8,8.3,9.5,13
1988,12.4,13,14.9,11.2,10.2,8.3,5.4,6.4,7.5,8.2,10.2,12.8
1989,14.3,14.9,13.9,11.6,9.5,7.6,6.3,5.8,7.7,7.9,12,12.6
1990,13.6,14,14.4,11.3,9.6,6.2,5.8,5.9,7.4,9.2,10.9,12.3
1991,13.7,14.7,13.2,12,10.4,8.7,7.1,6.6,7.7,9.7,10,14.2
1992,13.9,15.4,15.3,11.4,9.2,7.5,7.5,5.7,6.7,8.8,9.1,11.5
1993,13.5,13.4,12.9,10.8,8.9,6.9,6.5,5.4,6.9,7.2,11.5,12.5
1994,13,13.6,14.1,11.5,9.6,6.7,6.8,6.2,7.3,8.6,11.2,12.9
1995,15.4,15.5,13.9,10,7.9,7.1,7,6.3,7.8,8.9,10.3,12.6
1996,13.8,15,12,11,10.4,7.8,7.5,5.5,7.5,9.1,10.8,12.9
1997,15.4,15.9,13.3,11.7,9.5,8.5,4.7,5.1,7.5,8.3,10.3,13.1
1998,13.9,12.2,13.4,10.5,9.1,6.8,5.3,7.4,6.7,7.3,10.5,12.7
1999,14.1,13.7,13.9,11.6,10.4,7.3,7,5.4,7.7,7.5,9.8,12.8
2000,13.8,14.4,12.6,10,7.9,7.2,6.9,6.1,8,7.8,11.1,14.1
2001,15.2,14.1,13.3,10.8,9.1,7.3,6.8,6.4,7.2,7,10.7,10.5
2002,14.8,12,12.4,11.2,10.1,7.8,6.6,5.5,6.9,8.8,10.2,13.1
2003,14.3,16.3,14.7,12.6,10.4,6.7,6.2,6.2,6.5,8.8,11.9,12.2
2004,13.9,15.5,13.1,12.1,8.4,8.6,6.3,5.9,6.2,8.8,10.9,13.6
2005,14.1,14.6,16.5,11.1,11.4,7.6,5,5.9,5.5,7.5,9.5,10.8
2006,13.1,13.3,13,9.2,9.1,4.5,5.7,6.8,7.5,8.5,11.7,12.4
2007,13.9,15.1,12.8,11.1,8.5,5.9,7.2,6.4,6.5,7.3,10,12.2
2008,14.5,14,13.2,10.8,8.8,6.5,5.5,4.7,7.1,8.9,10.5,12.6
2009,15,14.6,12.4,10.4,7,6.7,6.1,6.2,6,9,11,12.2
