1901,21.1,23.8,21.6,16.8,15.4,10.5,10.5,12.2,15.6,16.2,20.6,21.3
1902,22.6,21.8,20.1,18.4,15.7,12.4,12.2,11.3,13.9,17,20.7,20.6
1903,22.2,23.3,21.8,17.5,13.9,11.8,11.3,11.8,14.8,17.6,19.9,20.2
1904,22.7,22.3,20,19.8,16,12.3,11.7,12.5,13.7,16.6,18.6,21
1905,23.9,22,20.8,18.3,15.5,11.6,10.7,12.7,13,15.3,18,19.6
1906,24,24.5,20.6,17.4,14.1,13.4,11.3,11.8,14.8,16.3,17,21.9
1907,20.7,21.4,19.1,16.7,15.5,12.2,11.6,12.7,15,16.7,18.7,21.3
1908,26.3,23,20.3,17.4,13.8,10.8,11.1,11.4,13.7,17,18.7,21
1909,21.1,21.3,20.1,17.8,14.1,11.8,11.1,11.6,13.7,16.3,19,19.9
1910,21.8,23,21.9,19.1,15.3,12.8,11.8,13.7,14.8,15.5,18.9,19.4
1911,20.8,22.6,20.5,16.6,14.7,11.1,11.6,14.4,14.3,17.1,19.4,19.4
1912,21.9,23.6,20.7,17,14.9,13,11.9,13.2,14,16.5,17.4,19.5
1913,21.2,23,18.6,18.4,13.9,12.2,12.5,12.4,13.5,16.8,16.5,22.3
1914,21.8,24.4,21.8,17.5,14.8,13.4,11.5,13.3,13.9,18.7,19.9,20.2
1915,22.5,23.1,20.1,17.6,13.9,12.3,12.6,13,15,15.5,17,20.4
1916,21.8,22.6,20.8,17.1,14.9,11.9,12.3,12.1,14.4,15.5,16.4,21.2
1917,21.3,21.3,19.7,16.3,13.3,12.4,11.6,13.2,14.4,15.6,17.6,22.2
1918,22.1,22.3,20.7,17.1,15,13,11.4,13.5,15.8,15.2,17.4,20.6
1919,21.6,22.2,19.5,19.8,15,12.8,11.6,13.4,15.8,17.3,19.5,22.2
1920,20.9,23.1,20.6,17.7,13.2,12.6,12.1,12.6,14.2,16.5,18.9,21.4
1921,23.3,23.2,21.7,18.3,15.5,13,12.8,12.5,15.6,16,19.8,19.4
1922,21.6,22.2,20,18.6,14.9,12.7,12.2,12.3,13.8,17,19.1,20.7
1923,21.1,22.2,20.4,18.7,15.3,12.5,11.9,12.8,13.7,15.7,17.7,20.7
1924,19.9,20.6,19.7,15.6,13.9,11.3,11.7,12.7,13.9,17,17.7,19.3
1925,21.3,20.5,20.4,17.9,14.3,12.7,11,11.8,13,16.8,18,20.4
1926,20.6,23.6,21.8,18,12.9,13.3,13,12.7,15.5,17,18.1,20
1927,22.2,22.7,19.4,16.6,13.5,11.6,11.2,12,14,18.2,19.3,20.9
1928,22.7,23.1,21.3,19,13.9,12.2,12.7,13.9,15.8,15,18.2,20.5
1929,22.1,22.6,19.8,17.5,14.5,12.1,10.9,12.2,12.7,15.6,17.1,18.9
1930,20.7,24.1,21.2,17.6,14.8,13,12.9,12.5,14.5,17.3,18.6,20
1931,20.4,22.2,19.7,16.3,14.6,12,11.3,12.1,13.8,15.9,17.3,20
1932,23.8,20.8,20.4,16.7,14.5,11.6,11.5,12.8,13.7,15.1,19.1,19.9
1933,20.1,21.5,20.8,17.1,13.8,13.7,12.5,12.3,14.4,18.6,18.9,20.4
1934,23.3,23.1,22.8,17.2,16.3,12.7,12.8,13.4,15.4,16.4,18.8,20.2
1935,21.4,21.6,19.7,17.4,14.3,12.3,12.1,13.5,13.4,17,19,21.6
1936,22.5,22.7,22,16.6,14.7,11.6,11.6,12.4,12.9,15.8,17.6,19.7
1937,20,21.5,20.8,16.6,14.4,12,12.1,13.3,14.8,16.8,19.9,20.9
1938,21.8,21.3,21.5,18.9,16,12,11.9,12.8,14.6,17.8,19.9,20.9
1939,22.5,23.3,20.2,17.7,15.8,12.1,11,11.7,14,15.9,16.9,19.1
1940,21.8,20.5,23.5,16.7,13.3,12,11.7,13.4,14.8,18.1,16.2,21.1
1941,21.2,22.1,19.1,18.4,14.3,12.4,11.8,12.2,14.1,14.7,18.3,21.4
1942,22.3,21.8,21.3,16.5,14.2,12.3,11.5,12.7,14.6,15.6,18.2,21.1
1943,24.1,22.2,20.8,16.2,12.7,10.8,11.2,10.4,12.4,15.4,17.1,19.3
1944,23.4,21.4,20.1,15.4,12.7,11.3,11.3,11.9,15.2,16.8,17.6,20.2
1945,21.3,20.1,18.5,16.2,13.4,12.7,11.5,12.4,13.6,15.6,18.7,21.6
1946,23.1,21.2,18.9,15.5,14,11,11.5,11.5,12.9,14.1,17.1,19.4
1947,22.8,23.1,20.4,17.5,16,12.6,11,11.4,13.9,15.1,16.2,19.4
1948,21.8,22.7,17.5,16.7,12.1,11.7,10.5,13.3,14.1,14.5,17.1,20.6
1949,20.9,19.9,19.5,16.1,13.1,11.1,11.6,12.9,14.3,15.9,16.7,19.1
1950,21.1,21.5,19.6,17.2,14,12.4,12.8,13.3,14.9,16,19.1,22.4
1951,24,22.2,21.9,14.6,14.1,12.5,11.1,11.3,14.1,16,17.5,20.2
1952,21.8,20.3,21.6,15.3,12.8,11.7,11.2,11.6,15,15,16.3,19.4
1953,21.2,21.3,21.7,17.2,14.1,11,11.3,11.4,13,15.3,17.3,20.5
1954,23.1,19.7,19.6,18.1,14.6,12.2,11.9,13.3,14.7,16.7,17.2,21.4
1955,23.9,21.9,20.8,17.4,12.7,11.1,10.7,11.8,14.7,16,17,19.1
1956,21.1,22.8,20.4,16.5,13.5,11.8,10.8,11.1,13.5,14.3,15.5,19.6
1957,22.1,21.8,19.6,16.8,14.4,15.2,12.1,12.9,14.6,15.6,18.2,19.9
1958,20.6,21.4,20.5,18.4,15.3,11.5,10.2,11.3,13.5,14.7,19.1,19.6
1959,25.5,22.5,20.2,18.4,14.4,13.2,12.4,13.2,14.3,15.8,20.2,18.6
1960,24.8,21.4,22,17.1,12.6,11.9,12.1,11.7,13.8,16.9,16.3,22
1961,24.6,23.4,21.4,18.3,14.9,13.7,12,12.8,15.1,18.1,19.3,22.3
1962,23.9,21.5,22,18.9,13.9,12.9,12.8,12.6,14.4,14.9,19.4,21.2
1963,22.8,21.4,20.5,17.2,14.4,12.8,11.7,12.8,14.4,18.6,18.3,21.5
1964,22.1,21.5,20.8,18.3,14.5,13,11.9,11.9,14.6,15.1,18.7,17.7
1965,20.6,23.2,21.7,15.9,14.6,13,11.6,13.3,15.4,18.1,17.9,21.9
1966,24.8,21,22,17.3,14.8,12.1,10.8,12.2,14.6,16,19.5,20.3
1967,22.1,24.5,21.4,18.8,15.4,14.4,12.4,12.9,14.1,17.9,18.7,19.7
1968,24.1,26.2,22.5,19,13.5,11.9,11.8,12.4,14.2,16.3,17.1,19.8
1969,24.6,22.8,20.9,18.1,14.6,12.4,12.8,13.9,12.2,17,18.3,19.2
1970,21.5,23.1,20.9,18.6,13.8,13.3,12.3,11.7,12.6,17,18,21.2
1971,21.8,23.6,22.9,18.7,14.7,12.3,12.7,12.6,14.9,15.5,17.3,20.7
1972,21.7,23.9,20.8,18.4,16,13.3,12.3,13.8,17.6,17.4,18.6,22.8
1973,24.8,22.6,20.2,19.2,15.8,12.4,13.6,13.2,15.7,17.5,17.4,21.9
1974,24.1,22.1,22.9,17.4,16,13.1,12.6,12.6,13.4,15.9,16.7,19.6
1975,20.7,23.8,19.9,17.3,16,13.3,14.1,12.1,15.8,16.1,19.4,21.7
1976,22.3,23.4,20.4,17.9,15.4,13.5,12.7,12.7,14.2,14.9,17.3,20.2
1977,22,23.1,21.1,16.9,14.4,12.2,11.8,15.3,14.1,18.3,18.3,19.8
1978,22.1,21.1,20.8,17.7,16,12.8,11.5,11.9,14.6,18,18.7,18.8
1979,25.3,23.1,21.6,16.8,14.1,13.6,12.3,12.5,14,16.4,18.4,21.2
1980,19.8,21.6,20.2,18.9,16,12.9,12.1,14.1,16,17.9,20.3,22.3
1981,25.4,23.9,20.1,18.5,15.2,12.6,11.9,11.7,15.9,17.7,17.6,20.1
1982,24.3,23.6,22.2,18.6,15.1,12.2,11.5,15.4,14.3,16.1,20.7,20.8
1983,21.3,25.4,21.5,16.5,15.1,12.1,11.9,13.4,14,15.5,18,21.3
1984,20.8,22.8,19.4,17.5,15.4,13.5,12.1,12.8,13.4,17,19.1,18.2
1985,21,22.2,21.8,18.5,15.5,12.4,12.6,13.1,14.3,17.4,18.1,20.1
1986,20.9,21.9,21.9,18.1,14.9,12,11.9,13.1,14,15.5,18.4,19.1
1987,21.6,22.6,19.2,19,15.4,13.4,12.5,13,15.9,16.6,19.4,19.8
1988,24.9,21.9,21.7,19,16.2,14.1,13.3,13.8,15.8,17.8,19.3,21
1989,21.8,23.5,21.4,18.8,15.6,12.9,12.3,12.2,14.9,16.3,18.8,21.1
1990,23.1,21.6,21.6,18.6,15.8,12.8,12.9,12.2,15.1,17.3,19,21.4
1991,22.4,22.2,21.5,17.6,15.2,14.5,12.6,12.1,13.7,18.3,18,19.6
1992,20.2,21.6,21,18.6,15.3,12.5,12.9,12.3,12.6,16,17.2,19.9
1993,23.3,23.2,20.6,20.2,15.5,12.6,13.5,14.6,14.6,16.4,17.9,19.8
1994,22.2,22.5,19.8,19.1,15.4,13.3,13.6,12.7,13.5,17.2,17.9,22.8
1995,23.1,24.1,19.5,15.9,14.4,12.9,11.2,14.7,14.2,16.4,17.9,18.2
1996,21.6,20.5,20.8,16.3,14.9,13.4,12.3,13,14.8,17.6,17.9,19
1997,23.9,24.5,19.9,18.3,14.8,13.6,12.1,13,13.8,17.4,19.5,20.2
1998,23.1,23.4,21.5,17.3,15,13,12,13.3,16.2,16.1,17.7,21.3
1999,22.5,23.6,20.6,16.9,16.3,13.7,13.3,14.3,16.8,17.8,18.1,21.6
2000,21.2,25.9,22.2,18.9,14.8,13.3,12.9,13.2,15.1,16.1,19.1,22.3
2001,24.9,25.3,21.1,18.6,15,14.3,13.3,13.8,17,16.3,17.6,18.4
2002,21.2,21.6,20.9,19.6,16.4,13.9,13.6,13.9,15.8,17,19.4,19.9
2003,23.5,22.3,20.7,18.2,16.3,14,13.3,13.3,14.4,14.8,20.1,22.9
2004,21.2,22.4,21.1,19,14.6,13.4,12.4,13.7,14.5,17.4,19.4,20.4
2005,23,21.9,20.1,21.3,15.9,14.7,13.5,14.3,15.4,18.5,20.7,22.9
2006,23.6,22,21.5,16.8,14.1,12.5,12.9,13.9,16,17.4,17.9,20.3
2007,23.3,23.7,21.6,18.8,17,12.5,12.6,14.4,14.8,16.9,19.1,21.8
2008,23.4,20.9,22.7,17.9,15,14.4,12.4,12.2,15.7,18,18.1,19.3
2009,23.6,22.3,20.7,17.6,15,13.6,13.3,14.9,15.8,16,21.4,21.9
