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