1901,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1902,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1903,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1904,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1905,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.5,23.5,23.4
1906,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1907,23.2,23.3,23.4,23.9,23.9,23.4,23.1,23,23.2,23.5,23.5,23.5
1908,23.1,23,23.3,23.8,24,23.4,23.3,23,23.2,23.4,23.5,23.5
1909,23.1,23,23.3,23.9,23.9,23.4,23.1,23,23.2,23.4,23.6,23.5
1910,23.1,23.1,23.3,23.8,24,23.4,23.1,23.1,23.3,23.4,23.5,23.4
1911,23,23,23.2,23.7,23.9,23.4,23.3,23,23.2,23.5,23.5,23.5
1912,23.2,23.1,23.4,23.8,23.9,23.6,23.1,23.1,23.4,23.4,23.5,23.4
1913,23.1,23.1,23.3,23.7,23.8,23.4,23.2,23.1,23.3,23.4,23.5,23.5
1914,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23.1,23.2,23.4,23.6,23.5
1915,23.2,23.1,23.3,23.9,23.9,23.6,23.1,23.1,23.2,23.5,23.5,23.4
1916,23,22.9,23.2,23.6,23.7,23.3,23.2,23,23.3,23.4,23.4,23.4
1917,23.1,22.9,23.3,23.8,23.7,23.4,23.1,23,23.1,23.3,23.4,23.4
1918,22.8,22.7,23.2,23.6,23.8,23.2,23.1,23,23.2,23.3,23.5,23.4
1919,23.2,23.1,23.4,23.9,23.9,23.4,23.3,23.1,23.3,23.5,23.6,23.6
1920,23.2,23.1,23.3,23.9,23.9,23.5,23.1,23,23.2,23.4,23.6,23.5
1921,23.2,23.1,23.3,23.8,23.8,23.5,23.1,23.1,23.2,23.5,23.5,23.5
1922,23.2,23.1,23.4,23.9,23.8,23.4,23.1,23.1,23.3,23.4,23.7,23.6
1923,23.1,23.1,23.3,23.8,23.8,23.5,23.1,23,23.1,23.6,23.6,23.5
1924,23.2,23.1,23.3,23.8,23.9,23.4,23.3,23.2,23.3,23.5,23.4,23.4
1925,23.1,23,23.3,23.8,23.8,23.5,23.1,23,23.2,23.4,23.6,23.5
1926,23.2,23.1,23.3,23.9,24,23.5,23.1,23,23.2,23.6,23.5,23.5
1927,23.1,23,23.4,23.8,23.8,23.4,23.1,23.1,23.3,23.4,23.5,23.5
1928,23.1,23.1,23.3,23.8,23.9,23.5,23.1,23.2,23.3,23.5,23.6,23.5
1929,23,23,23.2,23.8,23.8,23.4,23.3,23.1,23.3,23.5,23.4,23.3
1930,23.1,23,23.2,23.8,23.9,23.5,23.3,23.2,23.4,23.6,23.5,23.6
1931,23.2,23.1,23.4,23.9,24,23.6,23.2,23.2,23.2,23.5,23.5,23.5
1932,23.1,23.1,23.3,23.8,23.8,23.4,23.1,23.1,23.3,23.5,23.5,23.5
1933,23.1,23.1,23.4,23.8,23.9,23.5,23.3,23.1,23.3,23.4,23.4,23.2
1934,23,22.8,23.2,23.7,23.8,23.5,23.1,23,23.3,23.5,23.6,23.5
1935,23.1,23.1,23.4,23.8,23.9,23.4,23.2,23.2,23.3,23.5,23.6,23.4
1936,23.1,23.1,23.3,23.9,23.9,23.5,23.1,23,23.4,23.6,23.6,23.6
1937,23.2,23.2,23.4,23.9,23.8,23.6,23.2,23.2,23.2,23.4,23.6,23.6
1938,23.3,23.2,23.4,23.7,23.8,23.4,23.1,23.1,23.2,23.6,23.6,23.6
1939,23.2,23.2,23.4,23.8,23.8,23.4,23.2,23.1,23.4,23.6,23.6,23.6
1940,23,22.6,23.2,23.9,23.8,23.5,23.3,23,23.4,23.6,23.6,23.5
1941,23.5,23.4,23.6,24.3,24.3,23.8,23.4,23.4,23.3,23.7,23.5,23.5
1942,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1943,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1944,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1945,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1946,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1947,23.1,23.1,23.3,23.8,23.9,23.4,23.1,23,23.2,23.4,23.5,23.5
1948,23.1,23.1,23.2,23.8,23.9,23.5,23.1,23,23.2,23.4,23.4,23.5
1949,23.1,23.1,23.3,23.8,23.8,23.4,23.1,23,23.2,23.4,23.4,23.4
1950,23.3,23,23.4,23.9,23.9,23.4,23.2,23.1,23.3,23.5,23.5,23.5
1951,23,23.1,22.9,24,23.9,23.6,22.9,22.8,23.1,23.5,23.6,23.2
1952,23,23.1,23.1,23.7,23.9,23,22.9,22.7,22.9,23.2,23.1,23.1
1953,22.6,22.6,22.9,23.5,23.5,23.2,22.7,22.3,22.8,23.2,23.3,23.1
1954,22.6,22.4,23,23.5,23.2,22.9,22.5,22.4,22.6,22.8,23,22.8
1955,22.6,22.6,22.6,23.4,23.5,22.8,22.5,22.7,22.9,23,23.6,22.7
1956,22.4,22.8,23,23.4,23,22.9,22.6,22.4,22.8,23.2,23.2,22.9
1957,22.8,22.6,23.1,23.5,23.9,23.3,22.9,22.6,23,23.2,23.4,23.5
1958,23.1,23,23.2,23.7,23.8,23.5,23.2,22.9,23,23.1,23.2,23.1
1959,22.8,22.7,23,23.6,23.8,23.3,22.6,22.5,22.8,23.2,23.4,23.1
1960,23,22.8,22.7,23.8,23.6,23.2,23,23,22.9,23.1,23.3,23.1
1961,22.4,22.7,23.1,23.4,23.1,22.7,22.6,22.1,22.5,22.6,23.1,23.4
1962,22.9,22.7,22.9,22.9,23.3,23.1,23.3,22.2,22.7,23.4,23.4,23.6
1963,22.4,22.6,22.8,22.6,23.3,22.8,22.3,22.3,22.9,22.9,23.4,23.3
1964,23.2,23.5,23.2,23.9,23.4,22.6,22.6,22.4,23,22.9,22.8,22.6
1965,21.9,22.6,22.5,22.4,23.3,22.8,22,22.2,22.5,22.9,23.4,23.3
1966,23.1,22.8,23.1,23.8,23.9,23.2,22.7,22.9,23.4,23,23.4,23.4
1967,22.7,22.6,22.7,23.2,23.3,22.7,22.4,22.6,22.6,22.8,23.1,23.3
1968,22.8,21.8,22.9,23.3,23.5,23.2,23.1,22.6,22.9,22.9,22.9,23.3
1969,23.1,22.6,23.2,23.4,24,23.2,23.5,22.7,22.9,23.1,23.4,23.7
1970,23.5,22.8,23.5,24,23.8,23.4,22.7,22.5,23.2,23.6,23.2,23
1971,23.4,22.9,22.9,23.5,23.8,22.9,23,23.1,23.6,23.7,23.6,23.4
1972,22.9,23,22.7,23.5,23.7,23.6,23.4,23.4,23.3,23.7,23.9,24.2
1973,23.5,23.8,23.8,24.4,24,23.9,23.8,23.7,23.5,23.9,23.6,23.2
1974,22.3,23.2,22.6,23.4,23.8,23.2,23.1,23.4,23.9,23.8,23.6,23.3
1975,23.3,22.9,23.2,24.2,23.7,23.3,23.7,23.6,23.6,23.7,23.6,23.3
1976,22.3,22.3,22.6,22.5,22.9,22.5,22.6,22.2,22.6,23.2,23.3,23.2
1977,22.9,22.6,22.6,23.6,23.4,22.6,22.5,22.3,23.1,23.1,23.3,23.4
1978,22.9,22.7,23.4,23.6,24.4,23.3,23.1,23.2,22.8,23.2,23.1,23.6
1979,23.5,23.4,23.3,23.9,24.3,23.4,23.3,23.4,23.2,23.4,23.5,23.5
1980,23.3,22.7,23.2,24.1,24.4,23.4,23.4,22.9,23.3,23.8,23.5,23.2
1981,22.9,23.2,23.9,24.3,24.5,24.1,24.2,24,24.1,23.7,23.6,23.7
1982,23.3,23.1,23.5,24.2,23.8,23.6,23,22.8,23.5,23,23.6,23.9
1983,24.1,24.1,23.7,24.8,24.2,23.8,23.3,23.6,23.5,23.9,23.7,23.7
1984,23.2,22.6,23.4,24,23.7,23.4,22.7,23.5,23.1,23,23.6,23.5
1985,23.5,23.7,23.7,23.6,24.4,23,22.5,23.4,23.2,23.5,23.8,23.8
1986,23.2,23.4,23.7,24.2,24.6,24,23,22.7,23.4,23.8,23.5,24.1
1987,23.4,22.8,24.2,24.5,24.3,24.1,23.2,23.2,23.6,24.2,24.2,23.8
1988,24.1,24,24.4,24.6,24.8,23.8,23.3,23.7,24.1,24,23.3,22.9
1989,23.8,23.5,23.1,23.8,24,23.5,23.4,22.9,23.4,23.5,23.7,23.8
1990,23.5,23.6,23.8,24.5,24.2,23.9,23.7,23.4,23.3,24,23.7,23.6
1991,23.8,23.4,24.2,24.1,24.1,24.4,23.7,23.1,23.8,23.5,23.7,24.1
1992,23.8,23.7,24.2,24.4,24.3,23.7,23.2,23.9,23.7,23.4,23.2,23.7
1993,23.4,23.2,23.7,24.6,24.1,24,23.5,23.3,23.2,23.6,23.9,23.6
1994,23.7,23.6,23.4,24.2,23.8,23.4,23.2,22.5,23.5,23.5,24.1,23.6
1995,23.8,23.6,23.8,24.6,24.3,23.8,23.7,23.2,23.9,23.5,23.6,23.2
1996,23.2,23.1,23.9,24.3,24.2,23.8,24,23.5,23.5,23.8,23.5,23.1
1997,22.9,23.1,23.9,24.4,23.9,23.9,24.2,23.5,23.8,23.8,23.8,24.1
1998,24.4,24.5,24.7,24.9,24.9,24.5,24.5,24.1,24.3,24.4,24.1,23.4
1999,23.1,23.4,23.7,24.8,23.7,23.8,23.6,23.4,23.7,23.7,23.6,23.5
2000,23.3,23.2,23.8,24.5,24.7,23.1,24.2,23.8,23.9,23.9,24.1,23.8
2001,23.5,23.5,23.8,24.6,24.1,24,24.2,23.5,24,24.2,24.1,24
2002,24.3,23.4,24.2,25,24.8,24,24.1,23.2,23.7,23.8,24.1,24.5
2003,23.9,23.9,23.8,24.2,24.1,23.8,23.7,23.6,23.5,23.3,23.8,23.4
2004,23.5,23.2,23.6,24.8,24.4,23.2,23.3,23.8,23.2,23.9,23.8,23.4
2005,23.2,23.7,23.7,24.1,24,23.7,23.3,23.3,23.5,23.6,23.5,23.5
2006,23.4,23.3,23.3,23.6,23.7,23.3,23.5,23,23.4,23.6,23.8,23.8
2007,23.3,23.1,23.2,23.8,24,23.4,23.1,23.1,23.4,23.7,23.3,23.5
2008,23.1,22.9,22.8,23.5,23.5,23.2,22.9,22.9,23.2,23.4,23.5,23.6
2009,23.2,23,23.2,24.1,23.8,23.5,23.1,23.2,23.5,23.8,23.5,23.6
