1901,19.8,18.1,21.7,24.7,26.2,26.7,26.4,25.7,25.2,24.1,21.6,18.8
1902,19.4,19.4,23.2,25.1,27,26.7,26.4,26.2,25.4,24,22.4,20.3
1903,18.3,18.8,23,25.3,25.8,26.7,26.2,25.6,24.5,23.6,20.4,17.6
1904,17.6,19.9,21.3,24.1,25.6,26.2,26,25.8,25.4,24,21.1,18.1
1905,20.5,18.4,20.1,23.7,26.5,26.7,26.5,26.1,25.4,23.9,21.7,21.2
1906,18.8,20.3,21.2,24.4,26.4,27.3,26.8,26.8,25.8,23.5,20.6,19.6
1907,19,19.2,21.4,23.8,25.7,26.1,26.5,26,25.5,24.8,22.4,18.2
1908,19.3,18.9,20.6,23.6,25.7,26.3,26.4,26.1,25.6,24,21.4,19.3
1909,18.8,19.8,21.7,24.4,25.2,27,26.3,26.5,26,24.5,21.6,19.1
1910,19.5,19.3,21.2,23.9,26.7,26.9,26.5,26.3,24.9,23.4,21.3,17.6
1911,17.9,19.3,22.1,24.1,25.7,27.2,26.4,26.4,25.7,23.3,22,20.2
1912,17.9,19.6,22.3,24.3,27.4,27.2,26.5,25.9,25,23.6,20.9,18.6
1913,18,19.7,21.1,24.8,25.8,26.5,26.2,25.8,25.3,23.6,21.3,18.4
1914,19,20.6,22.8,24.9,27.1,26.9,26.1,26,25.2,24,21.8,19.8
1915,18.5,21.1,22.2,25.8,25.6,26.9,26.7,26.7,25.3,24.5,21.5,18.3
1916,18,19.1,20.7,24.3,26.4,25.9,26.6,26.2,25.1,23.4,20.3,18.5
1917,17.1,19.1,20.4,24.2,25.5,26.6,25.8,25.8,25.5,23.5,20.6,17.5
1918,16.1,18.4,21.3,23.8,25.6,26.1,26.5,25.3,25.1,23.9,21.8,20.4
1919,19.2,19,23,25.1,26,26.9,26.1,26.2,25.1,23,20.9,18.7
1920,17.5,19.1,21.3,23.9,26,26.5,26.4,26.2,25.5,23.4,22.1,19.9
1921,17.7,19.1,21.7,24.6,25.9,26.5,25.8,26,24.8,23.4,21.1,19.5
1922,18.8,20.1,21.3,24.5,26.7,26.8,26.1,26.1,25.3,23.4,20.7,18.4
1923,18.2,18.5,21.8,24.1,25.8,26.1,25.8,25.4,25.3,23.4,22.2,19.8
1924,19.4,19.5,21.2,23.6,26.9,26.3,25.7,25.9,26.6,24.1,21.4,18
1925,17.5,17.7,21.6,22,26.2,26.4,26.4,26.2,25.6,23.2,22.3,18.6
1926,18.9,19.6,21.5,24.1,26.2,25.7,26.3,25.9,25.6,23,21.2,19.2
1927,18.3,19,20.7,22.9,25.3,26.6,26,25.9,24.9,23,22.1,20
1928,20.8,18.5,23.5,24.3,26.7,26.6,26.8,26.3,25,22,20.5,20.8
1929,20.4,20,21.7,23.9,28.3,27.8,26.2,25.7,25.1,24,20.7,20.6
1930,15.2,19.3,20.7,26.6,26.8,27.5,25.9,25.7,24.3,23.6,22.2,20.2
1931,19.8,20.9,23,26.8,27.3,27.7,26.8,25.7,25,21.6,20.7,19.6
1932,17.9,17.9,20.2,24.9,27.7,27.3,25.8,26,23.9,22.9,21.1,18.4
1933,15.3,20.7,21.2,25.3,26.9,27.7,26.2,26,25.1,23.1,20.1,19.8
1934,16.6,18.3,20.6,22.7,26.1,27,25.3,25.5,25,21.5,21.5,19
1935,19.3,20.5,23.1,25.3,26.1,27.6,26.3,25.9,24.1,23.8,22.2,18.4
1936,17.2,19.5,19.1,25.5,26.1,27.1,26.3,25.4,25,22.4,21.5,20.2
1937,19.2,19.7,23.9,25.5,26.8,26.7,26.2,25.7,24.8,23.6,20.8,20.1
1938,18.8,18.8,20.2,23.8,26.3,27.2,26,25.4,24.9,23.3,20.5,19.6
1939,18.3,20.7,23.6,23.4,25.7,26.7,26.3,25.2,24.5,23.3,21.8,17.3
1940,18,19.8,22,22.7,26.2,27.2,27.1,25.1,25.3,23.9,21.7,20.9
1941,22.3,22.1,22.1,24.1,26.6,26.8,27.2,25.9,24.6,23.3,21.4,19.8
1942,18.8,20,23.3,25.2,26.6,27.3,26.2,25.6,24.4,23.3,21.4,19.5
1943,18.2,20,22.9,24.3,26.9,27.5,26.9,26,26.4,24.9,21.7,19.2
1944,20,19.5,22.6,25.4,26,26.9,27.1,25.8,25.7,24.1,22.3,16.3
1945,17.4,16.2,21.1,23.7,24.7,26.5,26.4,26.1,25.1,22.2,22.6,18.9
1946,20.9,22.7,23,26.6,26.4,27.2,25.5,25.2,25,23.1,21.7,18.9
1947,21.9,19,20.6,22.6,26.3,26.7,26.1,25.8,25.1,22.7,20.6,18.7
1948,18.6,20.7,22.3,23.2,25.8,26,25.6,25.5,26,24.9,20.7,21.9
1949,17.6,20.8,23.5,24.9,27.4,27.4,27.1,26.6,25.8,24.2,21.8,20.7
1950,21,19.4,22.8,23.8,26.3,26.5,27,25.8,25.4,23.8,21.8,18
1951,17.8,20.1,20.5,24.3,25.6,26.1,26.6,26.2,25.7,24.2,21.8,19.6
1952,19.5,21.4,24.9,25.1,27.5,27.3,27.1,26,25.3,24.1,22.1,17.6
1953,18.9,19.7,23.6,22.9,26.5,26.9,27.4,26.7,25.5,25.1,22.2,19.4
1954,21,20.4,19.3,25.2,27,27.6,27.7,26.6,25.4,23.4,21.8,18.3
1955,16.3,20.7,23.3,24.1,27,27,26.8,26.3,26,23.8,20.5,19.5
1956,17.2,20.6,23.3,25.3,26.6,27,26.8,26,25.7,23.8,20.2,17.6
1957,18.8,17.5,20.9,24.5,26.3,26.5,26.6,26.3,25.4,23.1,21.9,20.6
1958,18.6,18.1,23.6,25.4,27.3,26.2,26.4,25.8,25.3,23,20.5,19.3
1959,18.5,20.7,20.9,24.8,26.1,27.9,26.4,25.8,25.2,23.2,22.1,20.8
1960,18.6,19.7,24.5,23.9,26.1,26.5,26.3,26.1,25.1,23.4,22.2,18.9
1961,17.7,19.2,22.9,24.7,25.7,26.6,26.8,26.3,25.2,23.7,22.2,20.6
1962,16.6,18.7,21,23.5,26.7,26.4,26.7,26.2,25.2,23.6,21,18.5
1963,14.9,18.4,20.9,24.1,27,26,25.8,26,25.7,23.9,23,19.4
1964,19.6,17.9,21.6,25.8,25.9,26.4,26.4,25.8,25.3,24.4,20.3,18.4
1965,17.8,21.4,21.7,24.6,25.9,25.9,26,25.9,24.6,24.2,22.4,19.8
1966,20.8,21.4,23.3,25.7,25.1,26.6,26.3,25.9,24.5,24.3,21.8,21.2
1967,16.8,17.5,22,23.9,27,26.4,26.9,25.9,24.6,22.5,21.9,17.3
1968,18.7,15.2,21,22.6,26,26.1,27.2,26.2,25,23.1,21.8,21.5
1969,20,18.8,21,23.8,26.8,26.4,26.4,26.2,25.7,24,20.5,18.1
1970,17.4,20.7,20.9,23.3,26.2,26.8,26.8,25.9,25.1,22.7,20.6,19.8
1971,16.8,18.5,20.7,24.4,25.7,26.2,26,25.4,25.6,22.5,19.9,18.8
1972,17.3,19.3,21.1,23.2,26,26.5,26.1,25.2,25.3,24.4,22.6,20.2
1973,18.9,22.6,24.2,26.1,27.4,26.8,26.4,25.6,25,23.2,20.5,18.1
1974,17.9,17.8,20.3,23.3,26.3,26.4,26.9,25.9,25.6,23.2,20.2,18.8
1975,18.3,20.2,23.2,25.2,26.9,26.3,26.3,25.6,25.6,23.4,20.3,16.3
1976,17.3,20.5,21.1,24.4,26,26.2,25.9,25.5,25.1,23.9,19.5,19
1977,16.8,16.6,21.1,24.9,27.2,28.2,26.7,26.7,24.9,24.2,21.3,20.8
1978,19.1,19.4,22.8,24.4,25.8,26.6,26.7,25.8,24.8,22.8,21.3,20.2
1979,20.9,21.8,23.1,24.1,25.8,26.2,27,26.1,25,22.7,20.6,20
1980,20,18.2,24.5,25.3,26.1,26.8,26.6,26.6,25.1,24.3,21.8,20.2
1981,18.6,21.4,23.9,25.8,25.7,26.2,26.4,27,25.7,23.9,21.7,17.8
1982,19.1,20,22.9,23.1,25.7,26.6,26.7,26.4,25.1,24.5,22.5,17.7
1983,17.2,19,20.2,25.2,26.9,27.4,27.7,26.2,26.4,24.4,21,18.5
1984,15.8,17.2,20.9,25.6,25.4,26.6,26.6,25.9,25.1,23.9,21.8,18.7
1985,17.8,20.3,19.8,21.8,26.4,26.8,26.3,25.8,24.5,24,22.8,19.6
1986,18.2,19.7,21.1,25,25.9,26.7,26.6,26.4,25.6,24,21,19.5
1987,19.6,21.5,25,24.5,26.8,27.2,27.1,26.9,26,25.1,22.4,17.8
1988,20.4,20.7,20.7,22.3,27.3,27.2,27.1,26.3,26.1,23.3,19.9,19.2
1989,18.3,19,21,24.9,26.2,26.8,26.7,26.7,26.3,24,21.8,19.7
1990,19.4,20.1,21.3,25,25,26.8,26.9,27.1,26,24.2,22.4,20.7
1991,20.9,21,23.5,25.4,27.1,26.7,26.9,26.5,26.2,24,21.5,20.3
1992,18.2,19.3,22.8,25.3,26.9,26.8,26.5,26.9,26,23.2,21.5,20.8
1993,17.8,21.1,22.8,24.8,26.8,27.7,27.4,26.6,25.7,23.9,21.9,19.2
1994,20,21.1,21.3,26.3,27.9,26.9,26.3,26.5,25.5,24,22.7,21.9
1995,19,19.2,21.9,25.9,26.6,27.5,27,26.5,25.7,24.2,21.4,19.3
1996,19.8,17.7,22.9,22.8,26.1,27.7,27.7,26.7,25.4,24.8,22.9,19.7
1997,19.5,19,22.7,24.6,26.5,26.7,26.8,27.3,24.8,25,23.6,21.4
1998,20.7,21.5,24,26,27.1,28.2,27.5,27.4,26.3,25.2,23.1,20.2
1999,19,21.1,23.7,25.4,25.7,27.3,27.5,26.6,26.1,24.9,22.3,17.9
2000,19.8,19.4,22.2,25.6,26.3,27,26.9,27,25.7,24.8,21.3,20.7
2001,20.9,20.1,22.9,26.3,26.8,27.1,26.9,26.9,26.3,25.3,21.4,19.9
2002,19.6,21.6,24,26.5,27.1,27.7,27.1,26.5,25.2,24.6,22.5,20.9
2003,18.9,22.2,23.1,26.7,27.5,27.7,27.7,27.1,25.9,24.9,22.9,19.9
2004,20.4,19.7,22.7,25,26.8,27.5,27.2,27.3,26.1,24.1,22.7,20.9
2005,19.9,21.5,20.9,25,27.9,27.8,27.5,26.9,26.7,25,23.7,19.5
2006,19.5,21.5,22.4,26,27.1,27.8,28,26.7,25.9,25.5,23.3,21.1
2007,18.2,22,23.6,23.3,25.7,26.7,27,25.4,25.3,23.8,20.6,20.9
2008,18.1,15.1,21.5,24.9,25.6,26.1,26.5,26,25.8,24.6,21.9,19.6
2009,17.2,23.2,23,23.9,25.4,26.8,26.6,26.6,26.2,24.6,21,20.3
