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