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