1901,18,21.1,17.1,14.4,13.5,9.2,8.8,9.6,12.2,13,17.2,18.7
1902,18.1,17.5,16,15.5,13.6,9.7,9.6,9.3,11.8,14.1,17.5,16.8
1903,18.2,17.8,17.7,14.6,11.4,9.5,8.7,9.8,11.5,14.2,15.9,16.3
1904,17,18.2,15.9,16.8,12.9,10.6,9.5,10.1,10.9,14.2,15.7,16.7
1905,19.3,17.3,17.1,15.3,12.9,10.5,9.8,9.5,11.1,12.9,14.3,16.4
1906,20.7,20.7,16.8,15.6,13.5,11.7,10.4,10.1,11.1,13.8,13.8,17.8
1907,16.7,19.3,16.2,13.9,12.9,8.9,9.6,11.2,13.8,14.6,17.7,16.3
1908,24.9,20.8,17.2,17,12.7,9.3,9.2,10.4,11,14.6,18.3,20
1909,19.7,18.8,18.4,14.1,13.1,11,9.1,10.5,11.7,14.3,16,16.7
1910,21.8,21.5,18.1,16.6,14.7,12.1,10.3,12.1,12.9,12.7,16.5,16.1
1911,20.1,18.5,17.5,15.4,13.4,10.9,10.5,12.8,13,13.8,19.2,17.1
1912,19.2,22.4,19.2,15,14.4,11.6,10.3,11.6,12.7,14.3,15.3,18.4
1913,18.4,19.5,17.3,17.8,12.1,10.1,11,12.1,12.1,15.4,15.7,20.3
1914,19.2,21.7,19.6,16.5,13.8,11.8,10.5,13.6,13.2,17.6,19.7,19.9
1915,19.4,20.8,17.7,15.7,12.6,12.5,11.9,12.2,13.4,14.3,15.2,18.1
1916,19.5,19.8,18.1,15,13.7,11.1,11.3,11.6,13.7,14.3,14.2,17.7
1917,18.7,18.1,17.5,14.3,12.5,11.8,11.8,11.7,13,14.2,16.1,19.7
1918,20.6,19.8,17.9,15.9,14.8,12.1,10.3,11.9,13.1,14.3,16.4,18.5
1919,19.4,21.2,16.9,17.8,13.4,11.9,11,12.4,13.7,15.4,18.3,19.8
1920,18.8,20.3,18,15.7,12.4,11.4,10.9,11.6,13.1,15.5,17.4,19.4
1921,21,21.5,18.7,16.7,15.4,12.3,12.4,11.7,13.9,15,18.2,18.4
1922,18.1,20.6,17.4,16.8,13.8,10.8,10.8,11.1,12.6,15.1,17.3,18.4
1923,18.5,19.9,17.6,17.6,14.7,11.5,11.4,11.3,12.4,14.1,15.1,18
1924,17.1,17.8,17,14.1,12.4,10.1,10.8,11.9,12.5,14.6,16.4,17.5
1925,18.3,18.6,18.1,15.9,12.9,11,10.5,10.5,11.7,14.4,16.7,18.1
1926,18,19.7,18.6,16.3,12.3,11,11.2,11.5,13.8,14.6,16.5,17.6
1927,19.4,17.9,16.8,14.6,12.9,9.9,10.4,11.3,12.3,15.2,17.7,18.3
1928,18.3,18.4,18.3,16.7,12.4,10.6,11,12.1,13.9,13.6,16.4,18.9
1929,18,21,16.9,14.9,12.7,10.7,9.5,10.5,11.8,13.7,15.2,16
1930,18,21.1,18.6,15.4,13.2,10.4,12,11.4,13,15.9,16.4,18.9
1931,17.8,18.2,16.7,14.8,13.6,10.7,10.5,11.3,12.7,14.1,15.9,18.8
1932,20.4,17.6,17.6,15.2,13.8,10.8,11.2,11,13,12.5,16.2,16.8
1933,17.9,18.9,17.5,15.2,12.7,11.5,9.9,10.4,12.1,14.8,16.1,17.2
1934,20.1,19.9,20.8,14.7,13.8,10.9,11.2,11.4,13.4,14.2,15.8,17.5
1935,17.6,18.7,17.8,15.7,12.5,10.9,10.5,12.1,13,14.5,16,17.7
1936,18.9,18.8,18.8,14.9,13.5,10.4,10.7,12.5,12.2,14.4,15.9,17.9
1937,17.3,19.9,19.1,15.1,14.4,9.9,10,12.2,13.2,15.4,17.7,17.6
1938,18.9,18.9,18.4,16.8,13.7,10.1,10.6,11,12.6,15.4,17.5,18.3
1939,21,19.6,17.5,16.5,14.7,11.6,10,11.1,12.2,14.2,15.4,16.1
1940,18.2,17.9,20.8,14.5,12,10.4,10.5,11.5,12.9,15.9,14.7,18.2
1941,17.4,18,16.3,17.2,12.8,11.2,11.4,11.4,12.7,13.1,17.2,18.9
1942,19.2,17.8,18.3,15.1,13.9,10.9,10.4,11.5,12.7,14.2,15.4,17.6
1943,19.1,18.4,17.9,14.1,10.9,10.2,10.2,9.6,11.5,12.3,14.4,15.6
1944,18.3,18.4,17.8,13.7,11.8,8.9,9.9,9.7,13.4,14,16.8,17.4
1945,17.7,17.1,15.6,14.9,12.5,11.4,9.3,11.8,12.2,14,15.8,18.4
1946,18.9,17.5,16.1,13.4,13.3,9.5,11.4,11.1,11.1,12.5,15.2,17.6
1947,18.3,20.7,17.6,15.2,14.3,11.3,10.3,10.1,12.2,13.6,14.5,17.6
1948,18,18.9,16.1,14.8,12.5,10.2,9.8,11.9,13.4,13.6,15.4,17.2
1949,18.2,16.1,16.6,14.8,11.5,9.6,10.5,11,12.1,14.3,15.5,16.8
1950,18.3,18.7,17.5,15.5,13.9,10.6,10.9,11.2,13.6,14.4,16.9,20.9
1951,22.3,20,19.4,14.8,13,11.8,10.3,10.3,13.1,14.5,15.9,18.6
1952,19.1,17.1,18.8,14,12.8,11.8,9.4,10.3,12.5,13.6,14.9,16.5
1953,19,19.1,19.3,16.9,13.5,11.4,10.4,10.6,12.1,14.2,15.3,17.2
1954,19.9,16.6,16.9,16.5,13.8,10.8,10.5,11.4,12.7,14.6,15.8,19
1955,19.8,20.7,18.1,14.5,11.5,9.9,10.4,11.4,13.1,14.5,14.2,16.5
1956,17,21.2,19.7,16.2,12.6,10,9.5,10.1,11.6,12.3,14.1,15.3
1957,17.9,18.9,17,15,13.1,14.1,9.1,10.9,11.9,14.3,15.5,18.4
1958,17.9,19.5,18.1,16.1,15,9.6,10.1,11.5,11.5,14,16.5,15.6
1959,20,19.5,18.5,16.3,12.9,11.3,10.7,12.4,11.7,14.7,18.6,16.7
1960,21,18.4,19.2,15,11.6,9.6,9.8,10.3,11.8,14.6,14.6,20.3
1961,22.2,20.1,18.7,16.8,13,12,10.4,11.1,14,16.6,17.5,18.6
1962,19.9,19.6,18.6,16.7,12.6,12.7,11,11.7,12.7,13.4,17.1,17.9
1963,19.1,19.2,17.9,15.2,13.4,11.6,10.2,11,13.4,16.1,17,18.4
1964,19,18.2,17.6,16.2,12.8,11,11.2,11.6,12.8,13.5,16.3,15.3
1965,18.3,20.2,18.7,14.3,14,11.1,10.2,11.6,13.4,16.1,16.2,20.7
1966,20.2,19.1,19.1,15.9,13.6,11.1,10.1,10.8,12.3,14.5,17.8,17.5
1967,18.7,20.2,18.2,17.6,13.8,11.7,11.3,10.8,13,15.9,17.4,17.6
1968,21.7,22.2,19.7,17.9,13,10.7,9.5,10.8,12.2,15.3,15.4,17.6
1969,21.3,20.2,17.9,16.3,12.2,10.7,11.4,11.9,11.1,14.5,16.2,16.8
1970,18.5,19.9,17.8,17,12.4,12,11.6,10.4,11.1,14.2,16.3,18
1971,19.3,21.1,20.2,17.9,13.3,11.4,10.6,11.1,12.2,14.3,15.4,17.8
1972,18.8,20.3,17.7,16.8,13.8,10.2,11.6,11.9,13.6,14.9,15.8,19.8
1973,22,20.8,18.3,17.2,14.5,10.2,11,11.9,13.7,15.8,16.5,19.8
1974,21.7,19.7,21,16.4,13.6,11.6,11.3,11.9,12.2,14.9,15.3,17.9
1975,18.2,21,17.8,16.4,15.7,10.6,12.7,11.8,13.6,15.1,18.3,19.8
1976,19.3,20.9,18.4,16.6,13.3,11.6,10.8,11.7,12.2,13.5,16.4,19.1
1977,20.1,20.7,18.6,14.9,13.1,11.2,10.4,12.9,12,15.9,16.6,19.3
1978,18.5,19,18.9,16.2,14.3,10.9,10.7,10.6,12.5,15.5,16.7,18
1979,21.6,20.3,18.1,15.3,12.9,12.4,11.2,11.3,13.4,14.7,17.6,19.4
1980,18.4,19.6,17.9,18.5,15.1,12,11.6,12.2,14.3,15.2,18.2,20
1981,22.1,20.9,17,17.9,14,11.6,11.4,11.3,14.3,15.3,17.4,18.5
1982,22,20.5,19.5,16.8,14.1,9.7,9.4,12.7,12.9,15.5,18.8,19
1983,19.2,23,19.1,14.4,13.5,10.8,10.3,12.3,13.3,14.7,17.1,19.4
1984,18.8,19.8,18,15.7,14.3,11.4,10,12.1,12,15.1,17.6,18.9
1985,20,18.8,19.9,17,13.6,11.5,10.5,11.9,12.6,15.7,17.3,18
1986,18.6,19.5,20.3,16.4,14,11.3,10.9,11.5,12.8,14,16.4,17.6
1987,17.8,19.7,17.4,17,13.9,11.8,10.6,11.6,13.7,14.5,17.9,18.7
1988,21.2,19.3,19.7,16.6,15.3,12.4,11.7,12.2,14.1,16.2,16.7,19.7
1989,20,20.4,20.4,17,14.3,10.3,9.9,10.7,13,14.4,17.5,19.6
1990,20.1,19.3,19.6,16.7,14.2,11.4,11.6,11.4,13.9,15.5,17.8,19.7
1991,21.2,20.4,18.1,17.1,13.8,13.7,11,12,13.9,16.7,17.4,18.2
1992,17.7,20.5,19.2,17,13.5,11.6,11.8,11.6,11.7,15.5,15.9,19.4
1993,20.9,20.5,19,17.4,14.4,11.4,11.5,13.2,13.7,15.2,17,18.4
1994,18.9,20,18.8,17.1,14,12,11.6,11,12.9,16.1,16.7,20.5
1995,20.3,20.9,18.2,15,13.3,11.9,11.2,12.6,13.4,15.4,17.4,17.5
1996,18.9,19.9,19.4,15.3,14.1,11.8,11.3,12.3,13.5,15.8,16.7,18.3
1997,21.1,23.4,17.2,16.4,13,11.2,9.6,11.1,13.3,15.9,18.4,18.6
1998,20.2,20.2,19.5,15.1,13.7,11.1,9.9,12.3,14.6,15.4,16.8,19.8
1999,21.4,21.6,18.4,14.5,14.6,11.6,12,12.2,14.7,17,16.3,19.1
2000,20.6,23.3,19.7,17.2,13.7,11.7,11.6,11.7,14.5,15.2,19.6,19.2
2001,22.5,22.4,18,16,13.8,12.5,11.1,12.6,14.4,14,16,16.7
2002,18.8,18.6,18.3,17.5,14.7,12.1,11.9,11.5,13.4,14.8,17.8,19.1
2003,21,19.6,17.1,16.6,14.5,11.8,10.9,11.1,12.7,13.1,17.9,19.8
2004,18,20.9,18,17.2,13.5,12.5,11.2,12.3,13,16.4,17.1,19.4
2005,20.3,18.9,18.1,18.8,14.2,12.3,11.4,12.6,13.3,15.6,17.6,19.6
2006,21.6,19.1,19.9,14.9,12.3,9.5,10.6,11.9,13.6,15.2,17.1,18.3
2007,20.2,21.2,18.6,17.5,15.2,10,10.9,12.2,14,15,17.7,19.1
2008,19.8,18.2,20.6,15.6,13.6,12.2,10.6,10.1,13,15.9,16.4,17
2009,20.3,20.4,17.5,15.9,13.4,11.4,11.5,12.7,13.2,14.4,20.4,18.7
