1901,12.6,13,14.8,16.6,17.9,18.3,17.9,17.4,17.8,16.7,14.6,12.8
1902,11.6,12.7,15.2,16.5,18,18.1,18,16.7,18.3,16.5,14.6,12.8
1903,12.5,13.9,15,16.3,17.4,18.8,18.1,17.6,18.1,16,13.6,11.9
1904,12.3,13.5,15.2,16.9,17.7,18.3,17.6,17.3,17.5,16,13.9,12.8
1905,12.2,12.2,14.6,16.5,18.1,18.2,17.9,17.7,17.5,16.1,14.2,12.1
1906,11.5,12.2,14.2,16.1,17.7,18,18,17.3,17.9,16.2,14.3,12.4
1907,12.6,12.8,14.6,16.6,17.7,18.1,17.3,16.9,17.2,16.1,14.4,12.4
1908,11.7,12.4,14.7,17.2,18.2,18.3,17.7,17.2,17.4,15.6,13.5,12.6
1909,12,12.8,15.1,16.9,18.4,18,18.1,17.5,17.3,15.9,13.5,12.5
1910,11.3,12.3,13.2,15.6,17.3,17.8,17.5,17.3,17.3,15.9,13.3,11.5
1911,12.1,12.9,14.7,17,16.6,17.4,17.6,17.2,17.5,16.5,14.6,12.9
1912,12.3,11.8,15,17.5,17.9,17.9,17.6,17.3,17.3,16.3,13.4,12.9
1913,12.8,13.8,14.8,15.2,16.7,17.2,17.5,17.2,17.1,15.8,13.6,12.4
1914,11.8,12.9,13.4,16.2,17,17.5,18,17.6,17.2,15.9,13.7,13
1915,12,12.4,13.1,15.3,18.2,18.6,18.2,17.6,17.6,16.1,14.1,12.8
1916,13.1,12.2,13.9,15.9,17.4,17.7,18.2,17.1,17.2,15.5,13.1,12.4
1917,11.9,12.4,13.9,15.5,17.7,16.9,17.2,16.8,16.8,15.2,14,11.3
1918,11.5,13.1,13.6,16.2,17.3,17.3,17.6,16.9,17.1,16.4,14,12.3
1919,10.7,12.8,14.1,15.4,17.3,17.7,17.5,17.3,17.2,16.1,14.3,12.3
1920,11.7,12.6,14.5,17.2,17.1,17.2,17.6,17,17.2,15.7,13.5,12
1921,11.3,12.1,14.3,16.1,16.3,17.8,17.4,17.1,17.1,15.3,13.7,12.3
1922,12.2,13.1,14.6,17,17.9,17.5,17.6,17.4,17.4,15.6,13.9,12.4
1923,11.9,12.6,14.3,16.7,18.1,18,17.6,17.2,17.5,15.6,13.3,12.6
1924,11.7,11.7,14.6,16.5,16.9,18.1,17.8,17.3,17,15.4,12.8,12.4
1925,11.9,12.6,13.5,15.9,16.2,17.2,17.4,17.2,17.1,16.5,13.7,11.8
1926,11.5,12,14.3,15.9,16.7,18.3,18.7,17.9,17.5,16.3,12.2,11.6
1927,10,12.8,13.8,15.7,17.9,19,17.4,17.3,17.4,15.9,13.3,12.6
1928,11.1,12.9,14,15.9,16.9,18.2,17.6,17.1,17.7,15.9,13.3,11.1
1929,11.4,12.8,14.8,16.7,16.7,17.4,17.1,16.7,17.1,16.2,14.1,12.6
1930,12,12.9,14.5,15.1,17.4,17.3,17,16,17.4,15.8,12.5,11
1931,11.2,13.5,13.7,15.5,17.3,17,17.6,17.3,17.3,15.6,12.2,12.3
1932,11.5,12.8,13.7,15.7,17.8,17.8,17.2,17.3,17.6,15.7,11.2,11.6
1933,13.3,14.1,13.8,17.2,17.6,17.2,18.1,17.5,16.8,15.8,12.3,11.6
1934,12.3,13.3,14.1,16.1,17,17.6,17.8,17.5,17.4,15.5,13.1,12.1
1935,9.8,11.4,13.6,16.3,18,17.8,17.8,17.8,17.4,15.8,12.5,11.2
1936,12.2,13.6,15.6,16.4,16.7,18.1,18.7,17.6,17.4,16.4,13.5,11.1
1937,12.5,13.8,14.4,17.7,17.8,17.6,17.8,17.1,17.1,15.6,12.2,12.4
1938,11.1,12.7,14.4,16.1,17.1,17.5,17.4,15.9,16.7,14.5,12.5,11.4
1939,12.4,13.1,13.6,15.8,17.2,17.8,17.4,17.5,16.3,15.8,11.8,12.1
1940,10.5,12.9,13.7,17.3,18.4,17.9,18.2,18,17.3,15.2,13.6,11.6
1941,11.1,11.3,12.8,16.5,16.7,18.7,18.3,19.4,18.3,17.6,13.3,12
1942,10.6,12.3,12.3,15.1,17.9,17.9,16.9,17.8,17.7,16.2,13.2,13.7
1943,12.2,10.9,13.3,15.7,17.8,17.2,17.6,19.2,18.5,15.8,13.8,13.2
1944,12.8,15.5,16.8,17.7,18.4,18.6,19.7,15.7,19.1,16.6,15.9,14.8
1945,11.7,14.5,16.5,16.3,16.9,18.4,18.4,17.3,17.8,16.9,15.5,14
1946,13.2,14.9,15.1,17.3,18.5,18,17.4,16.9,17.4,16.6,15,14.2
1947,13.9,13.8,14.8,15.9,18.1,18,15.9,17,17.5,16.8,15.5,13.6
1948,13.3,14.2,16.1,17.4,18.6,19.4,18,19,19.8,17.8,16.4,14.5
1949,13.6,14.2,15.1,17.5,18.1,18.4,17.9,17.6,17.3,17.9,14.3,13.6
1950,13.7,14.5,15.4,16.4,17.2,17.6,17,15.5,18.7,16.4,14.6,12.6
1951,12.5,13.1,13.2,14.5,18.2,18.2,18.2,16.4,17.4,16.2,14.6,13.7
1952,13.7,14,15.5,15.9,17.7,17.8,17.2,18,18.2,15.3,14.8,13.2
1953,12.7,13.7,15,16.9,17.8,18,17.8,18.9,18.3,14.1,12.9,13.5
1954,13.6,12.8,13.8,16.1,17.5,17.7,17.5,17.7,17.7,15.8,13.5,12.5
1955,12.9,12.9,14.5,16.6,18.3,18,17.9,17.6,17.5,15.4,13.7,13.6
1956,12.7,13.8,14.4,16.5,17,17.7,17.4,17.6,17.2,15.7,13.3,13.5
1957,12.6,13.7,15.7,17.2,19,19,18.5,18.1,18.2,15.7,14.3,12.6
1958,12.6,13,15.2,17.2,17.6,17.9,18.4,17.4,18.3,16.9,14.6,13.5
1959,12.8,13.8,14.9,16.3,17.7,18.5,17.8,17.1,17.6,16.3,13.4,12.9
1960,12.7,12.1,14.2,15.6,16.7,17.5,17,16.9,16.5,15.6,14.3,12.8
1961,12.9,13.4,15,16.6,18.1,17.7,17.5,17.7,17.8,16.7,14.4,13.4
1962,12.3,14,15,17.1,17.5,17.6,17.9,17.4,17.2,16.3,13.3,12.2
1963,12.7,13.2,15.1,16.5,18,18.4,18.1,17.7,17.2,15.6,14.6,12.2
1964,11.1,13.1,16.2,17.7,17.7,17.3,17.2,17.2,17.1,14.9,14.3,13.2
1965,12.7,12.8,14.4,16.6,17.4,17.6,17,17,16.6,16,14,13.5
1966,12.9,13.6,14.2,16.8,17.7,17.1,18.2,17.6,17.4,15.2,13.7,11.9
1967,12.7,13.1,14.8,16.4,17.1,17.3,17,17.1,17.1,16.3,14.3,13
1968,13.7,13.6,14.6,16.6,16.6,17.2,16.4,15.9,15.7,15.4,14,13
1969,12.6,13.5,15,15.9,17.3,17.7,17.9,17.2,17.3,16.3,13.9,12.7
1970,12.5,13.5,13.9,16.6,15.9,17.1,16.9,16.2,16.7,16.4,12.9,13
1971,13.7,12.5,14.3,15.5,16.7,16.9,16.7,16.6,16.6,15.7,13.8,13
1972,12.7,12.6,14.6,16.7,17.8,17.8,16.8,16.5,16.9,15.7,14.7,12.8
1973,12.2,12.3,14.9,17,18.8,18.4,18.2,18,17.7,17,15.4,11.4
1974,13.6,13,14.7,17.4,17.8,18.3,17.2,17.3,18.1,14.6,13.8,12.8
1975,12.3,13.5,16.1,17.8,18.9,20.4,18.5,19.1,18.4,17.5,15.1,14
1976,11.7,13.2,15.5,17.3,18.4,18.6,18.9,18.6,18.6,17.4,13.9,12.6
1977,12.1,13.7,15,17.4,18.8,18.7,18.7,18.2,18.9,16.9,14.4,13.3
1978,12.1,12.3,14.5,17.3,19.2,18.9,17.9,18.5,18.2,16.3,15.7,13.5
1979,11.6,12.3,15.6,17.6,17.9,18.5,18.6,18.3,18.3,17,14.5,13.4
1980,12.5,13.1,14.7,17,18.3,19.3,18.8,15.4,18.3,16.7,14.1,13
1981,11.5,13.9,15.5,17.7,18.9,19.4,18.5,18.4,18.1,17,13.6,12.8
1982,12.1,13.5,15.6,18.1,18.3,19.2,18.5,18.2,18.3,16.3,14,12.7
1983,12.1,13.2,14.4,16.4,18.5,19.3,18.9,18.2,18.4,16.4,14.5,12.7
1984,11.3,12.8,13.9,16.4,16.9,17.4,17,16.5,16.8,15.9,12.9,12.6
1985,10.6,12.2,13.9,15.6,16.9,17.7,17.2,16.8,17.1,15.2,13.6,12.8
1986,11.9,12.2,12.6,15.9,17.1,18.3,17.2,16.8,17.4,15.5,14.4,12.3
1987,9.8,12.6,13.5,15,18,18.3,17.7,17.9,17.5,15.6,13.6,12.5
1988,12.9,12.8,13.9,16.1,17.1,17.5,17.5,17.6,17.6,15.8,14.4,11.8
1989,12.5,11.9,13.1,15.1,17.6,18,17,16.7,17.5,15.7,14.5,11.1
1990,12.4,13.2,14.9,16.2,17.1,17.3,17,16.8,16.9,15.5,14,11.5
1991,12.8,12.8,15.2,16.5,17.3,18.4,18.3,16.8,16.5,14.9,13.7,13.1
1992,12.9,12,15.3,16.3,16.1,17.8,17.2,17.1,17.1,15.5,14.3,12.9
1993,12.7,13.4,14.6,16.3,16.8,18.4,17.8,17.5,17.8,16.2,14.2,12.2
1994,12.8,13.9,14.9,17.3,17.8,17.7,17.2,16.5,17,15.4,15,13.5
1995,13.2,12.8,15,16.9,17.8,18.2,18,18.1,17.9,16.7,14.1,13.8
1996,11,11.6,14.2,15.9,17.9,18.1,18.2,17.4,18.1,15.8,14.3,12.9
1997,12.4,13.2,15.5,16.7,18.2,19.2,17.6,18.5,17.8,17.1,16.3,13.2
1998,12.4,12.6,15.5,17.4,18.4,19.4,18.4,18.4,18.2,17.9,16.4,14.2
1999,13.2,13.4,15.2,17.4,18.4,18.5,18,17.6,17.1,15.7,13.3,12.3
2000,12.5,13.5,16,17.1,17.8,18.7,18,17.7,17.8,16.6,14.6,12.8
2001,12.2,14.4,15.2,16.8,18.1,18.7,18.3,17.8,17.9,16.6,14.5,13.2
2002,12.5,13.6,15.2,17.1,18.5,19,18.2,17.9,18.1,17.1,14.9,13.5
2003,13.5,13.6,15.3,16.6,19,19.2,18,18.3,18.5,16.6,15,12.4
2004,13.3,13.9,16.5,17.7,18.1,18.8,18.1,18.2,17.8,17.4,15,13.1
2005,13,13.7,15.9,18.3,18.3,19,18.4,17.9,17.8,16.3,14.7,13.6
2006,13.4,13.3,15.9,17.3,18,18.4,18.4,18.2,18,17.5,14.5,14.3
2007,12.2,13.6,15.7,17.2,18,19.2,18.5,17.9,18.1,15.9,14.6,13.9
2008,13.1,14.3,15.4,16.6,18.8,18.1,17.8,18.1,17.7,16.3,13.6,12.8
2009,13.2,13.9,15.2,18,18.5,19.3,19,18.4,18,17.5,14.3,14.2
