1901,16,20.6,23.2,25.1,27.3,31,31.4,32.4,30.8,27.1,22.1,18.7
1902,16,20.5,22.2,25.2,29.2,31.5,31.2,33,32.5,27.5,20.3,16
1903,15.3,15.9,19.4,24.4,28.4,30.7,30.7,33,30.1,25.8,20.9,18.4
1904,17.7,18.7,21.4,23.9,27.6,30.4,30.6,33.2,29.9,27,20.3,16.7
1905,16,16.1,19.7,24.2,28.8,32.3,31.7,32.7,31.3,28.3,23.7,17.4
1906,16.6,18.7,22,25.1,29.8,32.6,32,33.3,30,27.5,23.4,19.9
1907,18.7,18.8,20.6,23.7,28.9,31.2,30.8,32.2,30.5,27,21.5,18.9
1908,17.7,19.4,22.5,26.5,28.6,31.8,30.9,32.1,31.1,28.2,22.5,18.1
1909,17.4,19.9,24.1,25.1,30.5,32.4,31.9,33,31.4,27.9,23.4,19.3
1910,17,19,19.6,25.9,29.1,31.3,31.9,32.8,31.3,26,21.9,17.3
1911,16.9,17.1,20.7,24.6,29,30.8,31.5,32,30.1,27,22.6,18.3
1912,16.9,19.6,21.9,24.9,28.6,30.5,30.6,30.7,30.8,26.7,22.7,17.8
1913,17,17.5,19.9,25.6,27.6,29.9,30.6,32.2,31,26.6,21.2,17.4
1914,18.5,18.3,22.9,23.7,29.1,31.3,30.8,33,30.3,26.9,23.9,19
1915,18.1,19.3,22.2,25,28.9,32.3,32,33.2,31.7,27.9,22.5,19.1
1916,16.6,19.1,22.8,25.4,30.1,32.9,32.4,32.7,31.1,26.7,23.6,19.1
1917,17.7,19,22.7,25.8,28.4,31.3,31.3,32.8,31.3,26.8,23.8,18.2
1918,16.4,18.2,21.5,24.8,28.8,31.4,31.6,32.5,31.4,28.5,23.6,18
1919,18.3,19.8,22.9,24.8,28.5,31.1,31.6,32.5,31.9,28.4,23.5,17.8
1920,17,17.2,21.8,25.4,29.3,31.9,31.6,33.3,31.5,27.7,21.7,17.5
1921,16.7,18.1,21,25.3,28.5,31.3,31.9,33.5,30.6,27,22.2,17.9
1922,17.1,18.3,22.1,25.1,29.1,31.3,32,33.3,31.6,28.3,23.8,17.7
1923,18,18.7,22.4,24.7,29.3,33,31.4,32.4,32,27.5,23.3,18.9
1924,17.3,19.4,22.9,26.1,28.5,32.2,32,32.8,31.5,27,22.2,18.2
1925,15.6,18,23.9,24.8,29.5,31.5,31.8,33,32.1,28,23.4,19.5
1926,17.3,18.5,21.6,25.6,30.2,32.3,31.1,31.9,30,27.5,22.4,18.7
1927,17.7,17.3,22.7,24.7,30.1,31.8,32,32.8,31.5,28.8,23.3,19.1
1928,19.4,18.6,23,26.8,31.3,31.8,31.1,32.8,31.9,27.1,22.4,19.1
1929,17.5,19.2,21.7,25.9,31.4,31.9,31,33.1,32.1,26.8,23.9,17.4
1930,16.3,19.2,22.1,26,29.8,32.2,31.8,33.6,31.7,27.8,22.2,20.6
1931,19,19,23,25.5,28.8,31.5,32.1,33.7,32.3,28.1,22.7,18.2
1932,17.1,19.2,22.8,25.6,27.9,33,32.1,33.6,31.1,28.7,23.4,17.8
1933,17.6,19.9,22.6,23.5,29.6,32.7,30.9,32.3,29.9,26.6,24.9,19.9
1934,17.6,17.6,22.6,26,30.3,32.4,31.3,33.2,30.7,28.1,24.4,18.5
1935,18.3,19,23.7,24.4,30.9,33,31.1,33.4,31,28.7,22.1,18.9
1936,18,20.9,23.7,26.9,30.4,31.3,31.8,33.6,30.2,28.5,24.6,18
1937,15.7,19.4,23.1,25.9,29.8,31.2,31.7,33,33,28.8,24,20
1938,18.4,19.4,19.8,26.1,29,30.3,31.8,34.4,32.3,27.4,22.6,20.2
1939,18,18.9,22,25.3,31.1,32.2,31.5,32.5,32.2,29.2,23,19.9
1940,18.3,20.2,21.2,26,30.4,32.9,32,32.6,31.6,28.9,22.5,19.1
1941,19.1,21.5,22.9,26,30.2,32.6,32.4,33.2,31,27.1,23.9,17.1
1942,17.1,20.3,23.6,26.2,30.4,32.1,31.3,32.7,30.2,28.1,23.9,19.5
1943,17.2,17.7,19.7,23.3,28.2,29.7,31.3,31.2,31.4,27.5,23.4,19.9
1944,17.6,18.5,23.4,25.7,28.4,32.2,31.2,32.3,31.1,27.4,21.8,17.9
1945,17.4,17,19.9,24.3,29.8,31.1,31.6,33.7,31.5,26.3,22.4,18.1
1946,17.5,18.1,21.2,25.4,28.6,31.3,31.7,32.8,31.6,27.2,23.2,19.3
1947,17.9,19.6,23.2,26.1,29.5,31.6,31.8,32.8,30.9,27.4,22.5,19.2
1948,17.8,18.5,19.9,24.3,28.7,31.7,31.6,32.7,30.8,26.2,22.1,17.6
1949,16,16.2,20.9,22.8,29.7,31.7,30.9,32.4,29.9,26.5,22.7,17.5
1950,16.2,17.3,21.6,25.9,29.8,31.3,31.9,33.7,31.3,26.8,22.2,18.8
1951,18,18.7,22.6,25.4,29.7,31.7,32,32.6,31.9,27.1,21.8,16.8
1952,16.8,19.2,21.6,26.1,29.3,31.3,30.9,33.9,32.3,28,22.4,20.1
1953,18.5,19.5,22.3,25.2,29.4,32.1,32.7,33.2,30.8,27.9,21.6,15.9
1954,17.8,19.7,23.5,25.2,29.7,31.7,32.7,34,31.1,27.2,22.6,18.2
1955,17.2,19.7,21.4,25.8,28.9,32.6,30.8,32.7,31.2,27.1,22.6,18.1
1956,16.2,20.8,21.2,23.9,27.7,31.5,31.8,33.7,31.2,26.4,22,17.9
1957,16.2,14.6,19.5,25.3,27.9,31.1,31.1,32.2,31.2,28.2,22.7,18.8
1958,17.3,20.5,24.7,28.1,28.7,31.2,31.4,33,30.4,26.4,22.1,19.2
1959,16.9,15.1,19.5,26,29.2,31.4,30.2,30.9,29.9,26,21.5,18
1960,17,19.9,22.5,25.5,29.7,31.4,31.3,32.1,31,27.1,23.1,19.7
1961,18.2,17.5,21,23.8,28.9,32.3,31.9,32.2,29.5,26.5,21.3,17.6
1962,16.4,19.6,23.4,25.3,29.3,32.4,32.1,33.3,31.8,27.8,22.7,19
1963,19.4,21.2,22.1,25.8,27.9,32.2,31.8,33.4,31.5,28.2,21.7,17.9
1964,14.5,18,22.7,26.3,27.9,31.7,31.6,31.7,30.4,25.5,21.7,17
1965,17.4,20.5,23,24.3,28.1,31.8,30.9,33.5,30.9,26.6,21.8,17.9
1966,19.2,17.8,21.6,26.2,29.4,32.4,31.1,33.9,31,27.2,23.4,18.7
1967,17.2,18.1,19.6,25.1,28,31.3,31.1,31,30.2,26.8,21.6,17.8
1968,17.3,17.5,22.4,22.7,28.8,32.1,32.6,33.2,30.4,27.2,22.1,18.9
1969,16.3,19.6,24.4,25.7,29.1,32.5,31,33.4,31.3,27.9,22.6,19.7
1970,17.5,20.1,21.8,27.7,29.5,31.9,31.1,32.5,30.5,26.4,22.5,16.9
1971,17,19.1,23.2,27.2,29.6,30.5,32.4,32.4,30.8,26.1,21.7,16.7
1972,16.7,17.1,21.3,24.6,28.3,32.1,31.3,33.3,30.8,28,22.1,16.1
1973,16.4,20.8,21.8,26.4,29.1,31.2,31.6,33.1,31.3,27.7,21.1,18
1974,15.5,18.8,20.8,27,29.2,32.3,31.5,32.9,30.6,27.3,22.5,17.1
1975,16.9,18.2,22.3,24.2,29.1,31.4,31.7,32,31.9,26.2,22,17.6
1976,17,17.8,21,25.6,29.2,31.8,30.7,32.5,31.5,27.9,22.5,19.9
1977,16.3,20.3,22.5,24.6,29.4,31.5,31.8,33.8,31.2,25.9,21.2,17.8
1978,17.1,19.5,22.5,27.2,30.6,31.7,31.2,31.7,31.1,27.9,20.8,19.5
1979,18,22,22.9,27.4,29.7,32.9,31.5,32,32.1,27.8,24.1,17.2
1980,17.8,18.2,22.8,26.4,30.2,32.6,32.2,32.6,30.9,27.5,23.6,18.7
1981,17.5,18.7,22,25.6,29.1,31.7,31.6,32.1,31.8,28,21.6,19.7
1982,18,16.8,19.9,25.2,28.7,31.7,30.4,32.3,31.3,27.3,20.4,16.5
1983,15,14.8,19.2,24.5,29.1,32.4,31.9,33.2,31.1,26.1,22.7,18.7
1984,16.7,20.8,23.6,26.2,29.2,30.9,30.9,30.8,31.4,27.2,22.4,17.7
1985,19.2,17.7,26.3,25.8,30.1,31.9,31.1,33.5,31.3,26.1,22.9,18.1
1986,17.3,19.1,22.7,24.5,27.9,31.4,32.8,34.4,31.9,28,21.1,16.8
1987,17.2,20.9,20.7,25.8,30.2,32.9,33.1,33.3,31.4,27.3,23,18.9
1988,14.6,18.6,23.1,26.1,30.8,32.6,33.3,33.4,32.6,27.5,21.9,19
1989,14.4,16.2,21.3,24.5,30.5,32.3,32.7,33.7,31.9,27,22.6,17.9
1990,17.1,16.9,21,25.5,29.3,32.4,32,32.5,31.7,27.9,23.5,20.1
1991,17.2,19.3,22,27.8,29.9,32.8,30.9,31.6,31.3,27.9,22.8,17.9
1992,13.4,14.4,20,25.7,28.3,31,31.1,32.3,29.7,27.2,22.6,17.1
1993,16.4,16.7,21.5,25,30.3,33.1,30.9,33.5,31.6,28.3,23,20.4
1994,18.9,18.3,20.8,27.7,30.2,31.7,30.8,33.7,31.3,29,22.4,16.5
1995,19,18.2,21.8,26,30.6,33.5,32.6,34.5,31.9,27.9,22.5,17.6
1996,18,20.1,21.9,26.1,31.7,33,33.5,34.4,32.9,27,22.3,19.4
1997,17.5,16.8,19.5,25.8,30.3,33.3,32.5,32.8,31.7,27.6,22.6,18.7
1998,16.6,18.7,20.7,27.2,30.5,33.5,33.6,34.8,32.1,28.4,23.7,20
1999,17.9,23,22,26.6,31.7,33.2,33,34.1,32.4,28.2,23.3,18.8
2000,17,19.2,21.7,27.6,30.7,33.2,34.4,35.5,31.5,26.6,21.7,18.1
2001,16.4,18.5,23.3,26.5,30.4,32.8,32.9,35.5,31.8,27.4,22,19.4
2002,16.3,20.2,22.4,26.4,29.6,33,33.7,34.8,31.8,28.6,23.4,18.1
2003,18,19.6,21.6,27.3,31.4,33.8,32.9,34.7,31,28.2,23.6,18.6
2004,20,19.5,24,26.6,30.2,32.8,33.4,34,31.5,28.5,23.2,17
2005,16.3,20.8,23.4,27.4,29.8,33.1,33.2,34.3,31.9,27.9,22.1,20.1
2006,18.1,20,22.6,25.7,31,34.2,32,34.6,31.5,27.8,21.4,16.4
2007,16.2,19.3,21.4,27.2,31.7,33.6,32.2,34.4,32.2,28.5,23.6,18.5
2008,16.1,18.4,24.9,28.3,30.3,33.3,32,33.5,33.3,27.4,22.7,18.8
2009,17.8,21,22.4,27.8,30.1,33.6,33.2,33.7,31.6,28.7,23.2,19.3
