1901,16.6,20.3,25.1,30.3,29.8,30.7,29.6,29.2,28.6,27.8,22.5,18.4
1902,18.4,20.4,26.9,28.4,29.3,30.1,28.9,29.3,28.7,26.5,22,17.9
1903,17.5,19.3,25.3,30.1,31.1,29.4,30.2,29,28.9,27.1,21.8,17.8
1904,17.4,20,26.1,30.4,28.8,29.1,28.5,29.1,29,26.7,21.9,18.8
1905,17,18,23.6,26.9,28.1,31.4,29.1,28.8,28.4,27,22.6,18.5
1906,17.1,19.2,23.5,30.3,30.4,30.3,29.6,28.8,29.5,26.8,22.5,18.8
1907,18.6,19.4,23.3,27.4,29.5,29.9,29.2,29.3,28.9,26.9,22.5,18
1908,16.7,19.8,25.8,32,30.5,30,29.3,29,29.1,27.5,22,17.7
1909,18.5,20,27,28,30.4,28.8,29.3,28.4,29.2,27.1,23.8,18.9
1910,17.3,19.8,25.6,29.9,29.8,29.2,28.7,28.9,29.2,26.8,21.9,17.7
1911,19.3,19.4,24.6,29.5,30.3,29.1,29.9,29,28.4,26.5,22.1,17.1
1912,18,21.1,25,27.7,29.2,30.2,28.9,29,29.1,26.8,21.7,18
1913,17.4,20,23.8,30.9,28.7,27.9,29.4,28.7,28.9,26.3,21.4,17.8
1914,17.7,20.4,25,27.3,29.1,29.2,29,28.8,28.7,25.7,22.3,18.8
1915,18.5,20.1,24.6,29.3,29.7,29.2,30.1,29.7,28.9,28.8,24.7,18.7
1916,17.7,20.6,27,29.6,32.4,29.1,29.1,29.3,29.1,27.2,22.5,17.7
1917,17.1,20,24.5,28.9,28.4,29.2,29.3,29.1,28.6,26.7,22.3,18.1
1918,16.7,20,26.1,28.5,29.4,28.2,30.2,28.5,29.2,27.1,22.5,18.1
1919,18.8,19.2,26.6,29,30.1,29.6,29.4,29.6,28.6,26.8,22.9,18.5
1920,18.4,19.9,24.7,29.5,30,31.1,29.8,29.2,28.7,27.6,22.9,18.9
1921,18.5,19.9,26.5,30.2,31.8,30.3,29.7,29.1,29,25.8,21.8,19.2
1922,18.1,20.9,26.7,31.1,31.6,28.7,29.3,28.9,28.5,26,22.5,18.5
1923,18.1,20,25.7,30.2,30.6,30.8,29.4,29,29.2,26.5,22.6,19.3
1924,18.2,20.5,27.6,30.9,30.8,31.6,29.3,29.1,28.3,27.5,22.2,18.6
1925,16.6,18.9,25.3,28.6,29.3,29.9,29,29.5,28.8,26.2,22.3,18
1926,17.7,20.9,24.5,28.4,30,32.3,29.3,29.2,28.8,26.9,21.5,19.2
1927,17.9,19.8,23.6,30,29.1,30.5,29.5,29.1,29.1,27.4,22.9,19.3
1928,18.2,20.9,26.8,29.7,30.1,29.1,29.1,29.4,29.7,27.4,22.4,18.8
1929,17.6,19.2,25.8,29.2,31.1,31.1,28.9,28.9,29,26.2,22,17.9
1930,16.7,19.8,25.8,29.3,30.3,30,29.2,29.1,29,27.3,22.1,18
1931,18.9,20.1,24.6,30.7,29.8,31.5,29,29.5,28.5,27.2,22.1,18.9
1932,18.5,19,26.4,29.6,30.4,30.5,29.2,29.2,29.2,27.7,22.8,19.1
1933,16.6,20.8,26.1,28,30.3,29.5,29.1,28.6,28.9,27,22.2,18.7
1934,17.4,19.8,25.4,29.9,30.2,29.3,29.4,29.1,29.4,26.3,21.9,18.9
1935,17.1,20.4,26.4,29.2,31.8,31.2,29.7,28.4,28.7,26.9,22.6,18.6
1936,17,20,26.4,30.2,29.1,28.7,29,29.5,28.4,26.3,23.1,19.3
1937,16.4,19.9,24.6,29.4,29,29.6,29.8,29,29,26.5,22.1,18.3
1938,19.2,19.1,27.5,31.5,28.4,29.2,29.1,29,29.6,27.7,21.8,18.5
1939,18.8,21.1,25.1,31.1,30.6,30.4,28.9,28.8,28.8,27,22.5,19.2
1940,17.7,20.3,23.9,29.8,30.5,30.9,29.1,29.3,29.2,27.7,24.5,19.7
1941,18.5,21.2,27.4,30.6,30.6,29.5,29.5,29.6,29.2,26.5,22.5,20.2
1942,18.4,20.7,26.3,29.5,31.7,31.5,29.5,28.5,28.4,27.1,24.1,18.8
1943,19.2,19.3,25.7,27.7,30.8,29.5,29,28.8,29.1,27.8,23.5,20.4
1944,18.4,20.5,25.7,28,32.7,31.3,29,29.3,29.2,27.2,23.2,20.6
1945,17.9,19.4,26.7,29,30,30.6,29.7,29.6,29.5,26.6,22.6,18.4
1946,18.7,22.2,26.2,26.7,29.3,29.5,28.9,29.2,29,26.7,23.6,19.7
1947,18.4,20.8,26.3,31,30.7,30.8,29.3,29.1,28.9,26.8,23.3,19.8
1948,19.4,20.8,24.9,30.2,29.5,30.2,28.3,28.4,29,26.7,23.3,17.9
1949,18.5,20,26,27.1,27.5,30.3,29.2,29.2,29.3,27.5,22.1,18
1950,18.7,20.4,25.3,30,30.5,29.3,29.2,28.5,29.2,26.9,22.6,19.6
1951,17.7,20.4,25.1,29.7,30.5,30.5,29.3,29.8,29,28.5,23.7,19.9
1952,19.2,22,26.5,27.1,29.2,30.3,29,28.8,28.5,27.2,23,19.4
1953,17.6,21.4,27.7,29.9,30.7,29.5,28.5,28.9,28.2,27,22.4,20.4
1954,16.9,21.9,25.8,32.3,31.5,28.7,28.4,28.6,28.5,25.7,21,18.9
1955,18.2,20.5,27.4,29.3,31.4,30,28.7,28.7,29.2,27.5,23,18.6
1956,18.1,19.9,26.2,29.7,30.6,28.3,28.5,28.7,28.3,27.2,22.6,19.2
1957,18.3,19.4,24.5,29.9,32.5,30.5,29,29.2,29.1,27.2,22.7,19.7
1958,20.1,20.9,26.6,31,32.5,32.4,30.3,28.9,29.3,28.4,23.4,20.2
1959,18.4,20.3,25.3,30.1,30.9,30,29.4,29.2,28.5,27.2,22.9,19.4
1960,18.2,22.1,24.5,31.2,31.3,30.4,28.8,29.3,28.8,27.4,22.3,19.7
1961,18.8,18.5,26.6,30.7,30.9,29.3,29.3,29.2,29,26.9,21.8,17.3
1962,17.4,21.3,25.9,29.5,29.9,30,29.9,28.9,29.4,26.6,22.7,19.5
1963,17.8,22,25.6,28.7,28.8,29.5,29.4,29.3,29.4,27.2,23.7,19.9
1964,17.8,21.2,27,29.7,29.1,30.7,28.6,29.2,29.1,27.7,23,19.6
1965,18.9,20.9,24.4,29.6,31.4,30.8,29.1,28.4,29,27.2,23.3,18.9
1966,18.5,22.3,26.3,31,31.6,31.1,29.8,29,29,26.5,23.7,19.4
1967,18.7,21.9,24.4,27.4,30.2,30.4,29.4,28.8,28.3,26.6,22,20.1
1968,18,19.6,25.6,29.3,31,28.6,28.9,29.1,29.9,26.4,23.4,20.7
1969,17.7,20.8,26.9,30,29.6,30.1,29.3,28.1,28.5,26.9,23.4,19.5
1970,17.9,20.6,25.9,30.5,31.5,29.4,29.2,29.3,28.7,26.8,22.3,18.5
1971,17.7,19.5,24.9,26.9,27.8,28.8,28.1,27.6,28.2,26.6,21.7,18.6
1972,18.1,18.2,25.7,29.7,31.9,30.3,29.6,28.8,29.1,26.5,22.1,18.7
1973,17.9,21.2,24.4,30.2,28.7,28.6,29.3,29.1,28.7,27.1,23.1,19.2
1974,17.2,19.9,24.8,28.9,29.3,30,28.7,28.8,28.7,28.2,23,17.4
1975,18.2,20.7,25.9,30.2,30.3,30.1,28.5,29,28.5,28.2,23.6,18.6
1976,18.6,21.7,26.5,29.9,29.1,30,29.6,28.4,28.7,27.6,24.8,19.2
1977,18,20.9,27.7,29.3,27.6,28.9,29.1,29.5,29.3,26.7,24.2,18.6
1978,17.2,19.9,24.2,28.5,29.1,28.8,29.1,29.7,28.6,27.6,24.6,19.5
1979,19.4,19.9,25.9,30,32.4,31.4,29.6,30,29.3,28,25.6,20.1
1980,18.5,20.7,25.8,31.2,29.3,30,29.5,29.4,29.7,27.2,23.8,20.4
1981,18.2,20.9,25.1,26.9,28.2,30.3,29.1,29.5,28.9,27.7,23.3,19.2
1982,19.3,20.4,23.9,28.9,31.9,29.9,30.3,29,30,27.4,23.6,19
1983,17.9,20.1,25.9,28.3,29.3,31.7,30.2,29.5,29.3,27.4,24,19.2
1984,18.2,19.9,26.3,30.8,30.7,28.9,29.1,29.2,28.6,28.1,23,19.7
1985,19.1,20.5,27.1,30.6,29.2,30.4,28.5,29.4,28.5,27.4,23.9,20.8
1986,19,21.3,25.8,28.9,28.7,31,29,28.8,28.4,26.5,24.2,20.1
1987,19,22.4,26,29.2,30.4,31.1,29,28.3,29,28.3,24.6,21.2
1988,20.2,21.6,25.5,30.1,30.4,29.3,29.3,29.7,29.8,27.9,25.2,21.7
1989,17.7,22.5,26.6,31.1,30.8,29.3,29.5,29.6,29.4,28.7,24.1,19.6
1990,19.8,21.5,24.4,29,29.6,30.1,29.3,29.9,29.7,26.8,25.2,20.6
1991,17.4,22.4,26.3,29.4,30.5,29.2,29.8,29.2,28.5,27.9,24.3,18.8
1992,17.5,19,26.2,30.3,29.3,30.1,29.3,29,29.2,27.2,23.4,18.9
1993,18,21.8,24.3,27.7,28.6,29.8,29.6,28.7,28.7,27.6,24,19.8
1994,18.5,19.8,26.1,28.7,30.6,29.6,29.6,29.1,29.6,27.3,23.3,19
1995,18.5,23.6,25.4,30.4,30.8,31,29.4,28.7,29,27.4,22.8,18.9
1996,20,21,27.9,29.6,30.6,29.7,29.3,28.6,27.8,26.9,23.5,18.5
1997,18.7,19.8,25.9,29.2,30.1,30.4,29.5,28.5,28.4,26.2,23.8,18.9
1998,19.3,22.8,25.8,29.4,31.2,30.4,29.3,29.2,29.9,29.1,25,19.1
1999,18.4,22.4,26.6,31.1,30.1,30.2,29,29,28.6,27.7,23.8,20.6
2000,18.4,19.3,25.1,28.7,29.6,29.8,29.8,29.5,28.3,28,24.6,19.8
2001,18.5,21.3,26,30,30.1,29.7,29.4,29.7,30,28.2,25.2,20.6
2002,19.3,21.8,26.6,29.4,30.2,30.2,29.1,29.1,29.1,27.7,24.2,20.9
2003,17.5,21.8,25.3,30.2,30.4,30.2,29.8,30,29.7,28.2,24.3,19.2
2004,18.6,21.4,27.5,29.7,31.1,30.4,29.3,29.6,29.6,26.9,23.8,20.3
2005,18.7,22.6,26.7,29.9,30.2,31.4,29.5,29.8,29.2,27.2,23.6,19.9
2006,19.9,24,27,29.4,30.6,30.4,29.6,29.5,29.3,28.2,24.8,20.8
2007,18.7,21.1,25.8,30.4,30.8,30.7,29.6,29.9,29.4,28.4,24.7,20.1
2008,19.1,19.7,26.9,30.2,30.8,30,29.2,29.6,29,28.1,24.6,20.8
2009,20.4,23.1,26.9,31.6,30.5,31.3,30.1,29.7,29.7,28.1,24.6,20.7
