1901,21.4,15.7,21.1,26.1,28.7,30.5,32.2,31.5,30.4,28.1,23.8,19.4
1902,20.2,18.7,23.6,26.2,29.3,29.8,32.1,32,30.5,27.9,25.3,21.2
1903,18.1,18.1,23,25.9,27.8,30.5,31.9,31.5,30,27.8,22.8,19
1904,18.3,20.1,21,25.1,27.8,30,31.4,31.3,30.7,28.1,23.5,19.3
1905,21.4,16.9,19.1,23.8,29.2,30.8,32.3,32.1,30.9,27.9,24,21.7
1906,18.1,19.1,20.3,24.8,28.6,31.5,32.3,32.8,31.3,27.5,22.9,20.8
1907,19.8,18.5,21.3,24.3,28.1,29.7,31.9,32.4,30.9,29.4,25.3,19.8
1908,19.8,17.9,19.6,23.8,28,30.2,32.3,32.2,31.1,28.5,24.3,20.6
1909,19,19.2,21.2,25.1,27.4,31.2,32.5,32.7,31.8,28.7,24.4,20.7
1910,19.9,18.4,21,24.3,28.9,31.6,32.2,32.2,30.6,27.3,23.7,18.8
1911,17.8,18.7,22,24.8,27.5,31.4,31.8,31.8,31.1,27.3,23.9,20.7
1912,16.8,19.5,22.4,25.4,29.6,30.5,32.7,32.4,30.6,28.2,24,19.4
1913,18.7,19.4,19.7,25.7,28.8,30.7,32.3,32.5,31.2,28.5,24.7,19.2
1914,20.9,20.4,23.2,25.7,28.9,30,32.2,32.3,30.5,28.4,23.9,20.4
1915,18.8,20.7,22.1,26.6,27.6,31.3,32.4,33,31.6,29.6,24.8,21.2
1916,20.1,18.5,18.7,25.5,29.4,30,33.1,32.4,31.3,27.7,23.9,20.3
1917,16.8,18.8,20,24.6,27.7,30.4,31.2,32.5,31.5,28.2,23.1,18.2
1918,16.2,18.7,20.9,25.6,28,30.1,31.9,30.9,30.5,27.2,23.6,21.3
1919,19.4,17.9,23,26.2,28.9,31.5,31.5,32.5,30.5,26.7,23.4,18.9
1920,19,17.1,20.1,24.5,28.4,30.2,32,32.2,31.1,27.7,24.7,20.8
1921,18.8,18.9,21.6,26.3,28.8,30.4,32,32.8,29.8,27.3,24.5,20.4
1922,18.5,19.5,21.3,26.1,29.8,30.7,33.5,32.5,30.5,27.5,23.2,19.6
1923,19.7,18.3,22.4,25.5,29.5,30.1,32.3,31.7,31.2,27.9,26,21
1924,19.5,18.1,20.4,25.3,30.8,30.3,31.7,32.6,31.5,28.9,23.6,19.8
1925,17.3,17.1,21.3,22.3,29.4,31.5,33.2,33,31.7,27.5,24.6,20.3
1926,19.3,18.5,21.8,24.4,28.9,29.4,32.8,33,32.4,27.4,24.2,20.3
1927,18.5,17.8,19.3,22.9,27.6,31.4,32.4,33.1,30.9,28,25.3,21.5
1928,19.4,18.3,21,25.4,29.3,30.3,34,33,32.4,28.1,24,21.5
1929,19.2,18,22.3,25.5,30.2,32.4,31.6,31.5,31.5,28,20.7,21.2
1930,16.9,18.9,21,26.7,30.1,32,32.4,32.8,30.3,28.2,24.5,20.9
1931,19.2,19.2,21.6,25,29,30.6,32.4,32.1,31.4,27.3,24.5,20.2
1932,19.8,17.5,20.9,26.2,31.4,31,31.9,32.8,29.9,27.8,24.4,20.1
1933,17,17.9,20.9,26.8,29.9,31.4,32.3,34.1,32.1,28.9,23.8,20.6
1934,16.3,18.3,21.7,24.3,28.5,30.8,32.1,31.5,32.2,27,23.8,20.9
1935,18.6,19.2,23,24.6,28.8,31.1,31.7,32.1,30.3,29.4,24.8,19.6
1936,17.5,17.8,18.3,25.4,28.7,32.2,33.3,32.9,31.6,28.1,24.9,22.7
1937,20.1,20.6,22.2,26.4,29.9,31,33,31.4,32.1,29,25.3,20.8
1938,19.4,18.1,20.6,26.5,30.5,33.2,32,32.3,31.3,29.1,25,22.2
1939,19.7,20.9,21.8,24.2,28.6,30.8,31.9,32.7,31.7,28.5,24.6,21.3
1940,20.5,20.1,21.4,25.2,28.4,30.7,33,32.7,33.5,30.3,26.1,23.1
1941,21.9,20.4,24.3,25.4,30.5,32.7,33,34,31.5,29.5,24.9,21.6
1942,20.2,18.3,24.8,27.3,30.1,33.3,32.1,33.5,31.8,29.4,26.1,21
1943,19.3,19.1,23.6,26.5,29.5,30.7,32.1,32.2,32.4,29.4,26.2,22.1
1944,20.5,18.5,22.2,25.7,29.3,30.3,33.1,32.5,31.8,28.7,25.8,17.2
1945,16.8,13.3,21.9,26.1,28.6,31.6,33.5,32.9,30.9,26.4,26.3,20.8
1946,21.8,23.1,22.5,27.9,29.5,31.7,32,33.2,33,28.4,26.3,19.9
1947,19.2,17.1,21.5,24.7,29.6,30.2,32,32.1,31.5,27.5,25.7,21.1
1948,20.4,20.9,24,25.7,29.2,30.4,31.5,32.1,30.7,27.9,22.2,21.2
1949,18.5,20.2,21.8,24.6,30.1,31.1,32.8,31.9,32,28.4,24.8,20.7
1950,21.5,19.3,23.6,25.3,29.4,30.1,33.1,32.5,32.5,29.5,24.9,19.4
1951,18.1,20,19.8,23.3,29.1,30,32.5,32.3,32.3,29.5,24.3,22.3
1952,19.9,19.4,22.8,25.6,31.1,31.9,32.8,32.9,32.2,29.2,27.1,19.7
1953,19.7,20.2,22.5,23.6,28.4,32.4,33.8,33.5,31,29.2,25.4,21.2
1954,20,19.6,20.1,25.4,31.5,31.7,33.3,32.7,31.8,28.7,24.7,19.7
1955,17.9,20.5,23.4,25.9,29.5,30.3,31.3,32.2,31.9,27.1,22.3,20.5
1956,17,18.2,21.2,26.9,29,31.9,33.2,32.7,32.2,27.8,22.2,19.3
1957,19.3,15.7,19.7,26,28.7,30.5,32.6,32.8,30.1,26.6,24.5,21.1
1958,17.6,17.6,22.7,27.6,30.2,30.9,32.1,31.8,31.1,27.2,23.4,20.4
1959,18.1,19.5,22,26.4,29.5,31.3,32.2,32.1,31.1,27.9,24.9,21.2
1960,19,20.2,24.8,24.5,28,30.9,32.9,31.5,31.1,28.3,24.1,19.7
1961,18.2,18.3,21.2,25.5,29.4,32.5,32.6,31.5,30.5,28.8,24.6,20.9
1962,17.1,19.9,21.8,24.5,29.3,30.7,33.3,34,31.5,28.3,23.1,20.1
1963,16.8,19.1,23,27.3,32,30.9,31.7,32.6,32.2,27.9,25.2,20.9
1964,18.5,17.5,21.8,28.4,29,30.6,33.6,32.2,31.4,28.9,24.1,20
1965,19.8,20.9,22.1,24.6,28.4,29.9,32,32.9,30.1,27.8,25.3,20.4
1966,20.5,21.6,24.5,26.5,29.4,29.8,32.2,33.2,30.4,28.4,25.6,20.8
1967,18.1,18,22.8,25.4,30.9,31.9,33.7,32,30.4,27.6,25.5,17.7
1968,18.9,14.5,21.4,25.2,29.4,29.5,32.7,32.2,31.1,27,24.9,22.9
1969,18.9,17.3,20.9,26.1,30.1,29.3,32.7,32.9,32.4,27.3,23.1,19.6
1970,17.1,21,18.3,24.5,29,31.2,33.4,32.4,31.1,27.8,24.2,21
1971,17.2,19.2,22.1,26.4,28.9,31.7,33.2,32.4,31.3,27,24,19.8
1972,19,17.2,23.6,25,28.6,31.4,32.1,31.1,30.5,28.4,25,20
1973,18.6,22,23.5,27,29.1,30.4,31.7,31.4,31.3,28.1,23.2,19.2
1974,18.7,17.4,21.5,25.6,29.4,29.9,32.7,32.2,30.9,28.4,23.9,20.6
1975,18.4,20,21,27.2,28.4,30.1,32.6,31.9,31.8,28.3,23.3,17.4
1976,18.6,20.7,21,24.4,29.2,29.6,31.8,31.8,29.7,27.3,21.9,20.1
1977,16.7,17.7,24.4,28.1,29.9,31.5,32.7,32.6,31.6,28.7,23.6,21.6
1978,18.8,19,20.5,25.6,27.6,31.2,32.8,32.2,31.8,26.5,23.7,20.9
1979,16.9,20.2,20.9,25.8,26.9,29.7,33.7,32.5,31,26.9,22.9,21.5
1980,19.2,16.7,22.5,25.3,27.7,32.4,32.8,32.9,30.9,28.3,25.1,20.7
1981,19.2,20.2,23.5,27.2,28.3,30.2,32.7,33.2,31,28.2,23,19.6
1982,19.3,18.4,21.9,24,29.3,29.9,32.3,32.6,31.1,29.2,24.9,20
1983,17.8,16.8,19.9,26.6,28.8,31.7,33.4,32.3,32.1,29,24.2,19.2
1984,16.7,17.5,20.3,23.7,27.7,31.3,33.7,32,30.9,28.4,25.3,19.4
1985,18.7,18.4,19.6,24.3,29.8,29.9,32,32,31.1,29.7,25,20.1
1986,19.1,17.1,20.4,26.2,28.7,30.9,32.5,33.3,31.4,27.9,23.6,20.8
1987,20.4,21.3,23.6,24.8,28.1,30.6,33.2,33.5,30.3,28.7,25,20.4
1988,20.5,19.1,19.8,24.4,29.8,32.8,33.9,31.8,31.1,28.4,23.3,20.5
1989,19,20.2,22.5,25.5,28.2,31,33,33.1,31.8,28.1,23.9,20.4
1990,19.6,20.2,22.6,24.3,28.9,30.7,33.2,33.1,31.3,28.6,26,21.8
1991,19.7,20.3,23.7,26,29.8,32.1,32.9,33.2,31.8,27.9,24.4,20.9
1992,19.7,17.5,21.1,25.7,28,30.4,32.7,32.9,32.5,28.3,23.9,22
1993,18.3,21.2,22.7,24.9,29.4,31.1,33.8,33.1,31.5,28.7,25.5,20.6
1994,20.1,19.8,20.5,28.4,31.3,29.5,32.8,32.5,31,29.4,26.5,22.5
1995,19.5,18.4,22,26.6,29.1,32.4,32.5,31.7,32.1,29.5,24.5,20.3
1996,20.5,18.3,22.7,23.3,28.3,33,34,32.7,33,29.9,26.5,21.3
1997,20.1,19.3,23.8,26.8,29.8,31.1,32.1,32.5,30.7,29.5,26.4,21.9
1998,19.5,19.7,22.5,28.8,30.7,31.5,34.2,34.2,31.9,30.5,26.8,22.4
1999,20.8,22.5,23.8,27.7,28.7,32.9,33.1,32.5,32.3,29.8,25.7,20.8
2000,20.4,18.9,23.7,26.3,30.4,32.5,34,32.9,32.6,29.9,24.8,22.9
2001,21.3,22.1,25.4,26.5,30.7,31.4,33,33.8,33,30,25.2,21.9
2002,21,22.2,25.9,29.1,31.4,33.3,33.3,33.2,31.5,28.9,25.1,21.7
2003,20.1,22,23,27.6,30.3,31.4,34.4,34,32.7,29.6,26.1,21.7
2004,21,21.7,22.4,27.7,30.9,32.7,33.6,33.9,32.3,29.2,26.3,22.6
2005,19,18.6,21.1,27.1,30.5,31.1,34.1,33.2,33.2,29.9,26.6,20.4
2006,20.4,21.1,22.7,27.7,29.5,31.8,33.7,33.4,31.9,30.4,26.4,22.1
2007,20.7,23,23.8,26.1,31,31.9,34.2,32.2,32.5,29.4,25.1,22.2
2008,19.6,17.3,24.1,26.8,29.6,30.8,33.4,33.2,32.8,30.1,25.4,21.6
2009,19.5,23.7,22.9,26,30.1,31.9,33.4,33.1,32.2,30.1,24.2,19.9
