1901,22.5,21.6,22.1,23,23.8,23.5,23.1,22.8,23.1,22.9,22.7,22.4
1902,22.6,20.9,22.1,22.8,23.7,23.4,22.9,22.9,22.5,22.8,22.5,22.8
1903,22.1,21.6,21.5,22.6,24,22.7,21.9,22.1,21.3,22.6,22.4,22.3
1904,21.5,20.9,21.1,21.4,21.5,21.1,23,21.7,21.8,21.8,21.3,21.3
1905,20.8,19.8,21.6,22.9,23.7,23.1,22.2,21.9,22.1,22.1,21.1,22.1
1906,21.4,21.5,21.2,22.9,23.6,22.5,22,22.9,22.3,22.3,21.6,22.3
1907,21.1,21.3,21.2,22,22.6,22.5,22.4,21.4,21.9,22.1,22.2,22.2
1908,21.6,22,21.3,22.3,22.4,22.4,22.3,22.9,22.3,22.4,21.9,22.6
1909,21.8,21.4,21.5,22.4,22.7,22.7,22.4,22.8,22.5,22.3,22,21.9
1910,21.9,22.1,21.5,22,22,22.7,22.7,22.7,22.2,22.3,21.3,21.8
1911,21.5,20.5,20.4,20.8,21.6,21.3,21.7,21.5,21.5,21.5,21.2,21.1
1912,21.1,20.9,21.5,21.7,22.3,22.8,21.4,21.9,21.9,21.5,21.2,21.2
1913,21,21.1,21.1,21.4,22.3,22.5,22.4,22.4,22.5,22,21.5,22
1914,20.6,20.6,20.9,22.3,22.8,23,23.2,23.3,22.5,22.4,22.3,22.2
1915,21.6,20.5,22,22.5,23.2,23.3,23.1,23.6,22.8,22.8,22.2,22.5
1916,22.3,21.4,21.6,21.8,21.9,22.2,22.9,23.1,21.9,21.9,21.3,21.9
1917,21.6,21,21.3,21.9,21.9,21.9,22.7,22.8,22.1,22.3,21.7,22
1918,21.2,20.7,20.9,21.6,22.7,22.2,22.8,22.3,22.7,22.4,21.8,21.7
1919,21.3,21.7,21.7,22.6,23,22.7,23,23,22.5,22.2,22,21.8
1920,21.7,21.1,21.5,22.9,23,23.1,23.4,22.5,22.9,22.1,22.2,21
1921,21.2,21.6,21.6,21.7,22.3,22.2,22.8,23.3,22.5,22.5,22.4,21.6
1922,21.7,21.3,21.7,22.4,22.7,22.9,23,22.9,22.8,22.4,22.3,22.3
1923,21.6,21.4,20.6,22.1,22.3,22.8,22.6,22.3,22.7,22.1,22,21.7
1924,21.3,21.6,21.5,22.2,23.4,23.1,22.8,23,22.5,22.8,21.7,22
1925,22,21.8,22.1,22.5,22.4,22.6,23.2,23,22.7,22,22.2,21.7
1926,21.2,21.3,21.3,22.4,23.3,23.3,22.8,22.9,22.5,22.8,22.3,22.1
1927,21.7,22.1,22.2,22.6,22.9,22.9,22.7,22.8,23.1,22.2,22.4,22.6
1928,22.5,22.3,22.1,22.8,22.9,22.5,22.7,23.3,22.9,22.4,22.3,22
1929,20.8,20.9,21.5,21.9,22.3,22.7,22.2,22.5,22.2,22.5,21.8,21.2
1930,21.6,21,21.6,22.3,23,23,23.2,22.9,23.1,22.8,22.5,22.6
1931,22,21.2,22,22.9,23.9,24,23.3,23.4,22.9,23,22.5,22.2
1932,21.6,21.1,22,22.5,23.1,23.4,22.9,23.3,22.8,22.9,22.6,22.6
1933,21.9,22.6,22.1,22.7,23.6,22.9,23.1,23.5,22.8,22.4,22.2,22.2
1934,22.3,21.9,21.4,22.9,22.9,23.2,23.3,22.3,22,22.6,22.8,22.1
1935,20.4,22,22.5,22.8,22,23.1,22.2,23.8,22.6,23.1,22.6,21.9
1936,21.9,22.2,21.9,22.8,23.3,23,23.3,22.9,22.6,22.9,22.2,22.9
1937,22.3,21.7,21.7,22.4,22.7,23.5,22.9,23,22.7,22.3,22.3,22.4
1938,22.1,21.7,22.4,22.5,22.9,22.7,22.8,23.7,22.8,22.4,22.3,22.3
1939,22,21.4,21.8,22.5,22.6,23.2,23.3,23.5,23.3,23.3,23,22.3
1940,21.3,20.8,22.1,22.7,23.7,23.4,23.1,22.7,22.6,22.6,22.5,22.1
1941,22.2,21.6,21.9,22.5,23.3,23.1,22.7,23.2,22.5,22.6,22.2,22.3
1942,21.6,21.7,22,22.4,23,22.9,22.6,22.7,22.4,22.5,22.1,22
1943,21.4,21.3,21.6,21.9,22.8,22.6,22.6,22.6,22.5,22.2,22.1,22
1944,21.8,21.6,21.8,22.5,23.2,23,22.8,22.9,22.7,22.6,22.4,22.3
1945,21.8,21.6,21.8,22.6,23.4,23.1,22.9,22.9,22.8,22.7,22.3,22.3
1946,22,21.3,21.8,22.3,22.9,22.9,23.2,22.9,22.7,22.8,22.8,23.3
1947,22.6,21.9,22.2,23.1,23.3,23.8,24,24,23.8,23,22.3,22.5
1948,21.5,21,20.7,22.3,22.7,22.8,22.6,22.4,21.9,22.2,21.3,21.8
1949,21.1,21.3,21.5,22.2,22.5,22.6,22.7,22.6,22.5,22.5,21.6,22
1950,22,21.4,21.4,22,22.8,23.1,23.1,22.6,22.4,22.4,21.7,21.1
1951,21.7,21.3,21,23,22.5,22.5,22.4,22.5,22.9,23,22.7,22.6
1952,22,21.7,21.3,23.2,23.2,22.7,23.2,22.1,22.5,22.5,22.6,22.4
1953,21.5,21.4,21.6,22.7,23,22.8,22.5,22.6,22.6,22.8,22.9,22.2
1954,21.7,22,21.5,22.6,22.3,22.6,22.4,22.6,22.7,22.4,22.1,22
1955,21.6,21.7,21.1,22.4,22.6,22.6,22.4,22.9,23,22.9,22.4,21.7
1956,21.3,21.8,21.3,22,22.3,22.5,22.3,22.3,22.8,22.6,22.5,22.4
1957,21.2,20.9,21.6,22.1,23,23.2,22.7,22.8,23.1,22.6,22.4,23
1958,22,21.7,21.3,22.2,23.2,23.6,23.1,23,23.2,22.8,22.3,22.1
1959,21.5,21.6,21.6,22.2,22.5,23.9,22.5,22.2,22.6,22.7,22.5,22.2
1960,21.6,21.7,21.7,22.5,23,23,22.9,22.8,22.8,22.8,22.3,21.7
1961,21.7,22.1,21.5,22.7,22.7,22.5,22.3,22.4,22.4,22.2,22,21.1
1962,21.7,21.8,21.6,22.1,22.3,22.5,22.6,22.3,22.2,22.8,22,21.9
1963,21.1,20.6,20.8,20.4,22.1,24,22.7,22.7,23.1,22.6,22.6,22.2
1964,21.9,21.8,21.1,23,23,22.5,22.4,22.6,22.7,22.4,22.3,22.3
1965,21.5,21.4,21.5,22.3,22.4,22,22.1,22.1,22.6,22.4,22.4,22
1966,21.3,21.5,21.7,22.7,23.1,23.1,22.5,23.2,23.3,22.5,22.6,22.5
1967,21.2,21.5,21,21.8,22.5,22.9,23.1,23.1,22.6,22.4,21.9,21.9
1968,21.9,20.7,21.2,22,23.1,23,23.6,22.8,22.9,22.3,21,22.1
1969,21.3,21,21.1,22.6,23.6,22.8,22.8,22.9,23.4,22.5,22,22.5
1970,21.9,22.3,22,22.9,23.3,23.4,22.8,22.6,22.5,22.7,22.2,23
1971,21.2,21.8,21,21.3,22.8,21.7,22.4,22.3,22.6,22.7,22.3,22.6
1972,21.1,21.6,21.1,21.6,22.6,22.2,24,22.4,22.5,22.5,22,22.1
1973,20.9,20.8,22,23.5,24.1,24,23,23.1,22.7,22.6,22.3,22.5
1974,21.3,21.5,21.6,22,22.6,22.2,23,23.1,22.9,23.2,22.7,22.5
1975,21.7,21.8,22.2,22.8,23.4,23.1,22.6,23,22.7,23.1,22.6,22.3
1976,22,21.4,21.7,22.8,22.6,22.5,22.2,22.9,22.8,22.9,22.7,23.1
1977,22.6,21.9,21.6,23.1,23.6,23.7,23.1,22.9,23.3,23.3,22.6,21.5
1978,21.7,21.3,22.2,22.8,23.6,23.3,23.5,23.7,22.6,23.3,22.5,22.7
1979,21.5,22.1,22.2,22.9,23.4,22.7,23.5,24.5,22.9,23.4,23.2,22.4
1980,22.5,21.7,22,22.6,23.4,23.2,22.6,22.2,23.3,22.6,23,23.5
1981,21.7,21.3,21.6,23,23.4,23.9,22.5,23.8,22.2,22.2,22.2,21.9
1982,22.8,22.5,21.9,23.3,23.1,23.5,22.2,22.6,22.5,22.3,22.5,22.3
1983,22,21.3,21.7,23.2,23.6,24.9,22.8,23.5,22.7,22.6,22.6,22.4
1984,22.9,23.1,22.2,23,23.2,23.1,22.4,23.4,22.3,22.7,22.4,22.8
1985,21.7,22.3,22.3,23.1,23.9,24.1,23.1,23.3,22.3,22.6,22.9,22.6
1986,22.6,21.8,22.1,23,23.7,23,23.1,23.2,23.1,23.1,23.2,21.9
1987,21.9,21.1,22.7,23.2,24.5,23.6,22.4,22.9,23.4,23,23,23
1988,22.8,23,23.2,23.9,24.3,23,23.5,23.2,23,23.4,22.9,21.9
1989,23,22.5,22.7,23.2,23.7,22.9,22.7,22.9,23,22.7,22.5,21.4
1990,22.7,22.6,22.6,23.6,22.9,23.2,22.6,23,22.7,22,22.3,21.6
1991,22.6,22.9,22.8,22.4,23,23.1,23.1,23.7,23.6,22.8,22.1,22.1
1992,21.4,20.9,21.5,22.6,23.7,23,22.1,23.1,23,23.1,22.3,22.4
1993,22.1,22.5,21.9,22.8,23.9,23.8,23.7,23.5,23.2,23.8,23.7,24
1994,22.9,22.5,22.9,23.7,24.3,23.8,23.6,23.2,23.3,23.6,23.3,22.9
1995,22.9,22.2,21.9,22.9,23.8,24.2,23.5,23.8,24,23.9,23.8,23.1
1996,22,22.2,23,22.7,23.8,23.4,23.7,23,23.3,23.5,22.6,22.9
1997,21.5,22.2,21.3,21.7,23.2,23.7,24,24.1,22.9,23.3,23.3,23
1998,22.1,22.5,22.3,23,23.8,24.1,23.8,24,23.7,23.9,24.1,23.8
1999,23.2,22.9,23.1,22.7,23.2,23.6,23.8,24,23.7,23.1,23.6,23.1
2000,22.5,23.4,22.5,22.5,24,22.9,24.4,24.1,23.9,22.9,23.6,23.6
2001,22.4,22.7,22.4,23.3,23,23.5,23.4,23.9,24,23,22.9,22.9
2002,22.5,22,23.1,23,24.1,23.9,23.2,23.1,22.7,22.8,23,22.7
2003,21.7,22.1,22.8,23.5,24.6,22.9,23.2,23,23.2,22.9,22.8,22.8
2004,22.5,23.7,24,23.7,23.7,23.2,22.9,23.3,23,22.4,23,23.3
2005,23.8,22.7,22.7,23.1,24.1,23.3,22.8,23.4,22.6,22.6,23.3,22.8
2006,23.2,23.1,23.6,23.8,23.9,23.6,23,23.1,23.4,23.1,22.9,23.9
2007,22.7,22.8,23,23.5,23.9,23.6,23.2,23.2,23,23,22.8,23.3
2008,23.2,22.5,22.7,23.1,22.9,22.9,23.1,22.8,23.4,23.2,23,23
2009,22.7,22.8,22.8,22.8,23.1,24.1,23.8,23.6,23.5,23.5,22.6,21.4
