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