1901,21.2,22.3,21.9,22.3,21.3,21.4,21.1,20.9,21.8,21.8,22.4,21
1902,23,22.7,23,22.6,20.7,20.7,20.1,20.2,20.6,21.2,22.8,24.1
1903,24.9,24.5,23.9,24,22.9,22.1,21.5,21,21.2,21.5,22.2,22.2
1904,22.3,22.4,22.4,22.2,21.2,20.5,19.7,19.2,18.9,20,21.2,21.3
1905,22.5,22.7,22.2,22.1,20.8,20.6,20.3,20,21.4,21.4,22.3,22.6
1906,23,23.5,23.9,23.3,20.9,20.4,19.6,20,20.8,20.6,21.2,21.8
1907,22.5,22.7,22.2,22.1,20.7,20.6,20.4,19.8,21.4,21.5,22.3,22.2
1908,22.6,22.7,22.7,22.5,21.5,20.4,20,20.3,20.2,21.1,21.5,22.2
1909,22.7,22.7,22.7,22.3,21.5,20.6,20,20.1,20.1,21,21.8,22.2
1910,22.6,22.7,22.7,22.5,21.5,20.4,20.2,19.9,20.5,20.9,21.5,22.4
1911,22.7,22.7,22.7,22.3,21.6,20.5,20,20,20.1,20.7,21.7,22.4
1912,22.8,22.8,22.6,22.3,21.5,20.4,19.9,20,20.3,20.9,21.6,22.1
1913,22.6,22.7,22.8,22.4,21.5,20.4,19.9,19.8,20,20.7,21.7,22.2
1914,22.4,22.8,22.8,22.4,21.5,20.4,19.6,19.7,20.1,20.7,21.6,22.3
1915,22.7,22.8,22.9,22.2,21.4,20.5,19.7,19.8,20.2,20.7,21.5,22.2
1916,22.6,22.8,22.6,22.4,21.7,20.6,20.1,20.2,20.3,21,21.6,22.1
1917,22.7,22.7,22.6,22.4,21.6,20.6,20.3,20,20.1,20.7,21.7,22.3
1918,22.5,22.8,22.4,22.2,21.4,20.6,19.7,20,20,20.7,21.4,22
1919,22.6,22.7,22.8,22.6,21.5,20.2,19.7,19.9,20.3,20.9,21.7,22.1
1920,22.7,22.8,22.8,22.5,21.7,20.3,20,20,20.3,20.8,21.5,22.3
1921,22.7,22.9,22.9,22.2,21.7,20.3,20.1,20,20.4,21,21.9,22.3
1922,22.7,22.8,22.8,22.6,21.6,20.6,20,20.1,20.3,20.9,21.7,22.3
1923,22.8,22.9,22.7,22.4,21.6,20.4,20,19.8,20,20.8,21.3,22
1924,22.7,22.8,22.6,22.2,21.7,20.5,20.2,20.1,20.5,21,21.8,22.3
1925,22.6,22.6,22.8,22.6,21.5,20.4,19.9,20.1,20.2,20.7,21.5,22.1
1926,22.5,22.8,22.6,22.2,21.7,20.4,20,19.9,20.3,20.9,21.8,22.3
1927,22.8,22.7,22.9,22.6,21.9,20.8,20.1,20,20.2,21.1,21.7,22.2
1928,22.7,22.5,22.8,22.4,21.5,20.3,19.9,20,20.3,20.9,21.8,22.4
1929,22.7,22.9,22.8,22.5,21.7,20.4,19.9,19.8,20.1,20.9,21.5,22.1
1930,22.7,22.7,22.8,22.3,21.5,20.2,19.9,19.7,20.1,20.8,21.7,22.4
1931,22.5,22.7,22.6,22.3,21.7,20.4,19.9,19.9,20.3,20.8,21.3,22
1932,22.6,22.8,22.6,22.3,21.4,20.4,20.2,19.9,20.1,20.8,21.5,22.2
1933,22.6,22.6,22.5,22.4,21.7,20.5,19.9,19.8,20.2,21,21.6,22.1
1934,22.7,22.8,22.8,22.5,21.7,20.6,20.1,19.8,20.1,20.9,21.7,22.1
1935,22.3,22.1,22.6,22.4,21.5,21,21,20.8,20.6,21.8,22.4,21.9
1936,22.4,22.7,22.3,22.3,21.4,21.3,20.4,20.3,20.8,20.5,21.3,21.8
1937,22.4,22.8,22.6,22.5,21.4,21.1,21.4,21,21.4,22.2,22.8,22.9
1938,23.1,23.1,22.7,22.2,21.6,21,21.1,21,21.3,22.5,21.8,22.5
1939,23.3,22.4,23,22.4,21.8,21.2,21,21.1,21.1,21,22.6,22.9
1940,23.8,23.3,23.9,24.1,22.7,22.1,20.7,21.2,21,21.7,23.3,23.2
1941,23.2,23.7,24,23,22.6,21.4,20.6,20.9,21.4,21.9,22.8,23
1942,23.7,24,24.1,23.1,22,21.6,20.5,20.3,21.2,21.8,22.6,22.7
1943,23.1,23.1,23.3,22.6,22.2,21.1,20.8,21.2,21,21.8,22.6,22.4
1944,22.4,22.8,23.2,22.9,22.5,21.8,20.5,20.4,21.2,20.7,21.9,22.3
1945,23.4,23.3,23.7,22.7,22.2,22.1,21.2,21.4,21.3,20.9,23.5,23.1
1946,22.8,23.1,23.5,23.1,21.6,21.5,20.6,21.6,20.4,21.4,22.5,23
1947,23.6,23.3,24.1,23.6,22.7,22.1,21.3,20.9,21.5,21.2,22.6,23.2
1948,23.2,23.1,23.3,22.6,22,21.5,20.8,19.8,19.9,20.5,21,21.7
1949,22.2,22.2,22.4,22.9,21.6,21.3,20.6,19.7,20.4,21,20.8,21.5
1950,21.6,21.7,21.6,21.7,20.4,20.5,20.2,20.2,20,20.6,21.3,21.3
1951,22,22.3,22.4,21.9,21.8,20.3,20.4,20.2,20.8,20.8,22.2,22.7
1952,22.5,22.2,22.6,22.6,21.7,21.9,19.9,20.2,20.9,20.7,22.6,22.6
1953,22.6,22.9,23.4,22.6,20.6,19.8,19.5,20,20.6,21.5,22.2,21.3
1954,22.4,22.3,22.5,21.5,21.1,20.5,20.4,20.2,20.7,21,20.4,22
1955,21.6,22,22.1,21.4,20.3,19.8,20,19.3,20.1,20.7,21.1,21.9
1956,22.1,21.5,21.5,21.5,20.2,19.6,19,20,20,20.8,20.9,22.1
1957,22.3,22.3,22.4,22.2,20.6,20.5,19.8,19.9,19.8,20.8,22.3,22.8
1958,22.7,22.8,23.1,22.5,20.9,21,20.7,20.3,21.1,21.2,22.6,22.5
1959,23.2,23.3,23.7,23.6,22.5,21.5,20.8,20.1,20.9,21.1,22,23
1960,23.5,22.7,23,23,21.9,19.8,19.6,20.4,20.9,20.8,22.7,23.2
1961,22.3,22.7,22.3,22,21.6,20.3,20.4,19.9,19.9,20.3,21.7,22
1962,22.5,22.2,22.3,21.8,21.4,20.7,20.2,19.3,20.4,20.5,21.4,21.9
1963,22.7,22.7,23,22.4,21.4,19.9,19.1,19.7,19.8,21.3,21.9,21.9
1964,23,22.8,22.9,22.6,21.1,20.3,20.1,19.9,19.6,20.6,20.7,21.4
1965,21.6,22,22.2,22.6,21.3,19.9,19.8,19.7,20.3,20.9,21.6,22.3
1966,22.3,22.7,22.7,22.7,21.5,20.2,19.9,20.1,20.8,21.1,21.7,21.7
1967,22.8,22.3,22.6,22.3,21.1,20.7,20.2,19.5,19.7,20.5,20.9,21.4
1968,22.4,22.2,21.6,21,20.5,19.2,19,19.4,19.6,20.5,21.9,22.8
1969,23.3,22.5,22.6,22.8,21.6,21.4,20.8,20.4,20.4,21.2,21.9,22.9
1970,23,22.4,22.8,22.8,21.8,21.3,20,20.6,20.5,20.7,21.6,22.1
1971,22,21.9,21.7,21.5,20.9,19.6,19.9,19.9,19.6,20.5,21.1,21.4
1972,22.6,23,22.4,22.5,21.9,20.7,20.1,20.2,19.6,20.2,21.3,22.9
1973,23.5,23.2,23.6,23.2,22.3,20.2,20.3,20.2,20.4,20.8,21.9,21.8
1974,22.3,22,21.6,22.1,21.1,20.2,20.1,19.3,19.4,20.1,21.2,21.6
1975,21.9,22.6,22.7,22.2,21.2,20.3,20,19.4,19.9,20.2,21.2,21.3
1976,21.5,21.8,22.2,21.8,21,20.4,19.9,19.3,19.6,21,22.5,22.5
1977,22.8,23.8,23.6,22.5,21.7,19.8,19.9,19.5,20.2,21.1,21.7,22.2
1978,23,22.5,23.3,22.5,21.9,20.7,19.6,19.9,20.7,20.3,21.5,22.2
1979,22,22.9,23,22.9,21.7,20.9,19.9,19.8,20.1,20.5,21.6,21.7
1980,23,22.9,23.2,22.5,21.9,20.8,20.5,19.7,20.4,21,21.8,22.9
1981,23,23,22.1,22.1,21.4,20.5,20.4,19.8,20.9,21.4,22,22.2
1982,23.3,22.9,23.5,22.4,22.2,20.8,19.8,20.5,19.9,21,21.3,22
1983,23,24.1,23.1,21.9,21.7,20.5,19.8,19.7,20.9,22,21.7,22.6
1984,23.2,24,23.7,23.7,22.1,20.5,19.7,20.2,20.9,21.3,21.7,21.9
1985,22.6,23,23.2,22.7,22.1,20.8,20.2,20.1,21,21.1,22,22.5
1986,23.1,22.3,22.9,23.1,21.8,21,21.1,20.4,20.9,21.4,22.6,22.3
1987,23.7,23.9,24.1,23,22.8,21.3,20.4,20,21.2,21.1,22.3,22.5
1988,23.3,23.3,23.2,23.1,22.4,21.9,20.3,21,21.3,21.1,22.3,22.4
1989,22.9,22.5,23.2,23.3,22.2,21.2,20.6,21,21,21.4,21.1,22
1990,23.5,23,23.1,23.2,22.3,21.7,21.4,20.8,21.4,21.9,22,23.1
1991,23.4,23.3,23.2,22.9,22.3,21.5,20.5,20.8,20.5,21.5,22.5,22.6
1992,23.4,23.5,23.2,23.2,22.4,20.7,20.8,21,21.2,21.4,22.1,22.6
1993,23.4,22.9,23.9,23,21.5,20.8,21.2,21.2,21.2,21.6,22.4,23
1994,23.5,23.8,23.9,23.3,22.4,21.8,20.6,20.7,20.9,21.6,21.6,22.7
1995,23.1,23,23.8,23.1,22.3,21.3,21,20.9,21,21.8,22.5,22.2
1996,23.2,22.8,23.2,22.7,22,21.2,20.5,20.5,20.3,21,22.8,22.2
1997,22.7,22.6,22.5,22.7,22,20.2,20.3,19.7,20.8,21.3,22.2,23.2
1998,24.4,24.3,24.1,23,22.2,20.9,20.4,20.7,21.2,21.7,22.4,22.4
1999,22.8,22.9,23.1,23,22.3,21.3,20.8,20.8,20.7,21.7,21.9,22.8
2000,23.1,23.3,23.3,22.7,21.8,21,20.9,20.8,21.1,21.7,22.8,22.4
2001,23.3,22.9,23.6,23.2,21.2,21.3,21.2,20.2,21.2,20.8,22.1,21.9
2002,23.8,23.4,24,23.5,21.8,21.4,20.6,20.7,21.3,22.4,23.3,23.2
2003,23.7,23.4,23.9,23.1,22.4,21,20.8,21.4,21.4,21.2,22.4,23.3
2004,23.8,23.6,23.4,23.1,22.1,20.7,19.7,20.5,21.2,21.8,22.6,23.5
2005,24.1,23.2,23.7,23.3,21.1,20.9,21.1,20.6,21.4,21.9,23.2,23.6
2006,23.5,23.4,24,22.9,22.2,22,21.3,20.4,21.3,21.5,22.5,23.1
2007,23.4,24.1,23.9,23.3,22.5,21.8,20.7,21.5,21.3,21.6,22.3,21.7
2008,22.8,22.9,22.7,22.3,22.1,21.3,20.5,20.4,20.7,21.6,22.5,23.3
2009,23.7,24.2,23.7,24.1,22.6,22.3,21.7,21.5,21.7,22.2,23.3,22.9
