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