1901,29.3,25.3,25.7,24.6,19.6,16.5,15.8,17,19.2,22.2,26.7,27.5
1902,26.6,26.5,28.2,25.8,20.3,17.2,15.4,17.7,19.3,20.5,24.3,25.8
1903,29.8,26.7,25.9,20.9,18.6,16.9,14.3,16.8,17.6,19.9,22.9,24.5
1904,27.4,27,25.1,24.9,18.2,15.4,14.5,17.2,18.2,19.3,25.6,27.4
1905,28.3,26.1,24.9,21.5,18.5,15,15.7,16,18.7,20.4,25,28.5
1906,29.8,29.1,27.4,24.8,20.5,17.2,15,15.3,17.3,21.7,22.8,27.3
1907,25.5,28.5,24.5,23.2,19.8,16.1,16,17.5,20,21.1,22.5,25.7
1908,29,27.1,24.9,20.9,18,14.3,15.4,15.4,18.6,21.9,25.2,28.8
1909,26.9,26.6,26.4,20.5,19,16,15.3,15.1,19,20.8,24.2,27.6
1910,28.7,26.4,26.4,25.5,18.6,15.3,13.8,17.3,19.3,19.2,23.6,25.3
1911,28.8,26.5,24.5,24.2,18.3,16,15.4,15.7,18.7,21.2,26.9,26.1
1912,28.6,29.8,27.5,22.4,20,16.5,14.8,18.1,18.2,21.6,23.1,27.8
1913,26.2,28.1,24.8,23.3,19,16.8,16.2,15.9,19.6,20.7,25.4,25.4
1914,28.8,27.8,26.5,22.8,19.5,17.7,15.4,19.2,21.7,24,22.8,25.9
1915,26.3,25.6,24.7,22.7,19,17.6,15.4,16.3,16.9,21.2,25.9,27.5
1916,26.4,28.4,26.7,22.4,21,15.3,14.2,16.5,20.2,19.6,23.1,25.5
1917,27.2,26.1,23,21.5,17.1,15.4,15,15.5,17.5,19.3,23.2,24.8
1918,27.3,25.2,24.5,22.7,18.4,16.4,15.7,16.1,20.8,21.3,26.2,27.5
1919,28.8,28.1,27.7,22.4,19.1,16.9,17.6,16.4,18.7,20.1,23.5,26.1
1920,27.2,26.7,25.6,21.4,18.9,15.6,15,14.9,19.9,22.4,25.5,26.8
1921,28.5,30.4,28.3,23.7,18.9,17.3,16.7,17.4,19.1,21.2,23.9,26
1922,28.3,28.2,27,23.1,18.9,16.2,14.4,16.8,18.7,22.8,25.4,24.4
1923,28,29.8,27.8,23.4,19.4,15,15.6,17,18.1,21.6,27.1,25.9
1924,27,26.9,23.7,24.8,20.3,17.3,17.2,17.6,18.8,19.8,23.9,26.5
1925,25,25.3,24.7,23.7,18.7,15.1,15.2,16.5,19.1,20.1,27.1,28
1926,29.8,28,23.8,21.6,17.8,16.3,15.2,16.1,20.9,22.4,25.7,25.8
1927,27.7,27.1,22.7,24.2,18.8,15.5,14.6,16.9,18.8,21.5,26.5,27
1928,26.4,26.7,25.4,24.2,19.6,16.7,15.3,17.8,19.2,20,26.7,27
1929,27.1,27.3,23.5,23.3,17.4,15.3,14.6,16.1,20.2,21.2,23,26.7
1930,30,29.3,26.2,21.4,20.2,16.8,15.5,16.5,20.1,22.2,25,26.3
1931,28,26.1,25.6,22.1,16.5,14,15,16.4,18.7,21,22.3,27.9
1932,29.6,28.2,25.5,22.3,20,16.6,15.8,15.1,19.4,19.3,24.8,26.8
1933,27.3,30.9,26.4,23.9,19.3,16.8,15.2,15.8,19.8,21.7,23.9,27.1
1934,30.3,30.4,26,20.1,22.4,15.8,15.3,17.5,19.5,20.4,22.7,26.3
1935,27.5,26.4,24.2,22.4,20.6,16.2,15.7,16.5,19,19.5,25.5,26.5
1936,27.9,27.7,27.8,23.4,19.1,15.9,15.1,17.2,20.8,21.6,26.4,27.1
1937,27.5,28.3,25.8,24,19.1,16.2,16,16.2,19.6,22.7,24,26.4
1938,27,27.4,26.7,24,19.4,15.1,15.5,16.9,20.5,21.8,26.6,28.3
1939,27.5,27.6,26.1,23.1,19,16.4,14.4,15.7,19,20.5,22.3,26.9
1940,27.7,29.7,29.2,22.7,19.1,17.9,16.3,18.8,20.4,22.5,24.5,26.2
1941,28.1,27.9,25.6,23.1,19.3,16.5,16.2,18.7,17.9,19.6,25.7,28.2
1942,27.3,25.9,24.3,21.9,19,15,14.5,16.2,18.8,20.1,24.8,26.4
1943,27.4,25.8,25.5,20.1,18.4,16.4,13.9,15.7,18.4,21,23.9,25.8
1944,29.2,28,26.1,21.9,17.4,17.2,15.4,16.1,19.5,23.8,26,25.5
1945,27.7,26.9,26.2,25.5,19.9,16.8,15.3,16.2,18.3,21.9,24.3,27.3
1946,28.2,25.3,24.8,24.2,19.6,15.5,15.9,16.6,20.2,22.9,22.6,27.3
1947,28.8,27.8,25.4,21.9,19.2,17.6,15.1,16.2,18.5,19.7,22.7,26.8
1948,29.3,27.4,26.6,20.9,19.7,16.3,15.5,17.9,19.7,22.1,23.3,26
1949,27.8,26.5,25.3,24.3,18.6,16.8,17.1,17.9,18.5,20,22.7,27.4
1950,28.1,27.7,26.6,24.5,19.3,16.4,15.6,16.9,19.4,20.8,23.7,27
1951,27.9,26.9,26.5,20.8,16.7,15.2,14.1,14.4,19.3,21.5,25.2,25.4
1952,27.3,25.4,25.9,20.9,17.8,17,14.3,16.7,17.1,19.2,22.8,24.1
1953,28.2,27.9,26.7,22.8,18.4,15.1,14.5,14.6,18.8,20.7,22.8,25.2
1954,28.6,27,27.6,21.2,18.1,14.9,15.1,16,18.8,21.4,23.9,27.1
1955,27.2,26.6,25.6,19.7,16,13.1,14.2,15.1,17.5,18.7,22.9,24.6
1956,29.9,28.9,26.4,20.5,17,13,13.8,14.6,18,19.1,23.3,25.8
1957,28.8,27.7,26,22.5,20,16.7,14.2,16.8,19.1,23.6,26.2,27.2
1958,28.8,27.8,26.2,24.2,18.9,15.4,13.4,15.7,17.2,19.2,23.8,26.5
1959,29.5,26,26.9,23.5,20.4,16.8,17.1,17.9,17.4,21.9,23.7,23.7
1960,26.6,25.8,23.9,19.8,16.5,15.8,13.4,15.6,17.6,22.5,22.9,26.5
1961,29.8,28.8,27.9,20.6,20.1,16.6,14.7,16.6,20.5,23.3,25.1,26.9
1962,29.4,28.3,25.5,24.1,20.3,17.9,15.8,18.2,19.3,20.8,26.2,27.5
1963,27.6,26.4,25.5,22.2,18.7,16.3,14.3,16.4,19.8,24.4,24.9,28.1
1964,28.7,26.7,27.9,20.3,19.3,17.3,15.4,16.5,17.9,19.3,24.3,25
1965,30.6,29.7,26.9,24.6,19,16.3,15.5,15.5,19.4,23.6,23.1,28.9
1966,28.2,26.8,28.2,21.3,19.9,15.7,15.7,16.4,17.1,20.4,26.5,25.9
1967,28.6,27.5,25.1,24.4,19.6,18,15.7,16,20.2,23.8,25.3,27.5
1968,29.8,27.3,24.2,20.6,16.7,15.7,15.4,14.7,17.9,22.3,24.3,27.2
1969,30.3,27.9,26.1,23.2,18.9,17.5,17,17.3,16.4,23.2,26.4,26.1
1970,28.9,29.2,27.5,21.1,18.3,16.4,16.9,16.6,17.8,21.8,24.4,28.2
1971,29.1,28.7,26.2,23,18.4,17,16.3,15.4,18.3,21.3,21,24.6
1972,28.5,30.1,26,25.1,22.4,17.8,15.1,17,21,22.4,25.1,31.8
1973,29.3,29.3,26.4,23.2,20.3,15.2,16.5,16.5,18.3,21.6,23.5,26.9
1974,29.7,27.4,25.1,20.7,18.3,16.8,15.8,17,19.7,23.1,25.2,28.9
1975,27.6,29.1,24.9,21.7,19.2,16.8,16.6,16.7,19.1,20,24.9,27.7
1976,27.5,28.2,27.2,24.4,20.9,17.3,17.7,17.6,20.3,21.1,23.4,29.2
1977,30.3,29.8,27.3,23.1,17.8,17.4,17.9,18.1,18.3,22.4,25.6,30.5
1978,29.8,28.7,28.7,25.6,19.9,16.4,15.3,17.6,19.3,22.2,25.5,28.7
1979,30.9,28,27.7,23.4,18.1,17.3,16.8,16.1,18.1,23.6,25.2,29.7
1980,30.2,26.7,29.3,23.3,20.7,16.3,16.5,18.3,21.6,20.8,28.1,28.5
1981,27.4,26.3,26.4,26.6,19.2,14.7,15.6,16.4,22.1,25.1,23.3,26.5
1982,29.6,29.2,24.8,23.2,19.3,16.3,16,19.3,20.7,22.5,28.2,29
1983,30.4,29.9,25.1,23.4,21.7,18.1,16.2,19.1,21,23.4,22.5,26.2
1984,29.2,27.6,24.8,23,19,17.5,14.9,15.7,16.9,23.5,25.1,26.7
1985,30,31.3,28,23.3,19.9,19,16.5,16.3,20,21.2,25.6,25.8
1986,30.5,28,27.7,22.9,19.1,16.7,14.8,15.9,19.3,20.5,25.2,25.4
1987,28,28.3,27.6,25,18.6,17.8,16.6,17.1,20.9,22.6,23.9,27.4
1988,29.1,29.3,27.6,24.2,19.8,18.1,16.3,17.5,20.7,25,23.8,25.9
1989,29.3,30.4,26.5,22.3,19.6,15.8,15.3,17.3,21.1,21.7,26.3,28.5
1990,27.9,28,27.7,23.1,20.5,16.4,14.8,15.9,21.3,21.1,26.2,27.4
1991,29.5,30,27.4,25.6,21.4,17.6,16.9,17.3,20.5,24.6,24.7,27.6
1992,28.9,27.4,26.2,23,18.9,16.9,17.4,15.8,15.9,21.1,22.5,26
1993,31.2,27.2,25.9,24.7,19.1,15.6,15.9,17.5,19.2,21.4,25.1,27.4
1994,29.6,27.2,29.7,25.8,22.4,18.3,18.5,18.6,20.7,23.3,26.5,28.7
1995,29.4,28.2,26.7,22.7,19.3,16.5,16.8,19.4,20,22.8,24.7,24.8
1996,29.3,31,26.3,24.2,22.7,18.5,16.9,17.6,19.7,24.2,25.4,26.8
1997,31.3,30.9,25.8,24.3,18.7,18.1,16.6,16.8,19,22.2,24.7,28.2
1998,30.8,29.6,28.5,22,20.9,16.9,14.5,18.9,18.6,22.3,25.5,27.5
1999,28.6,28.6,25.6,24.9,20.7,18.4,17.4,18.3,20.7,22,24.2,26.1
2000,27,27,24.1,23,19.8,18.6,16.6,16.4,21.5,23.3,26.5,28.6
2001,29.5,26,25.9,25.3,21.2,18.6,17.3,17.3,19.9,19.5,23.1,24
2002,27.7,25.9,27.9,22.8,23.3,18.6,17.9,18,20.5,23.8,26.2,26.3
2003,29.3,28.9,28.2,23.7,21.5,17.5,16.3,16.5,19.2,21,24.9,28.5
2004,27.4,29.5,25.2,23.5,19.7,18.3,16.2,16.5,19.7,25,25.2,29.3
2005,29.2,29.1,28.8,23.9,21.4,16.5,17.1,17.1,17.9,20.6,24,27.4
2006,25.8,27.6,26.2,20,19.8,17,16.2,19.3,20.3,23.4,27.1,27.6
2007,27.8,29.3,26.2,23.1,18.6,16.7,17.7,18.3,20.4,21.8,26.7,24.6
2008,28.1,27.5,26.7,22.2,21.6,17.8,15.9,16.2,20,21.8,21,25.1
2009,28.5,27.8,25.2,22.8,19.8,16.8,15.7,17.6,17.5,22.5,26.3,27.8
