1901,21.3,21.6,22.3,22.4,23.2,23.1,22.8,22.7,22.3,22.5,22.4,21.9
1902,20.2,21.4,21.6,22.4,23,23.2,22.7,22.5,22.2,22.3,22.1,22.3
1903,21,20.6,22.2,22.9,23.3,22.4,22.4,22.2,22,22,21.4,20.1
1904,19.4,20,21.4,22,22.9,22.8,22.5,22.6,22.5,22.5,21.6,21.1
1905,21.2,21.6,22,23,22.9,22.8,22.6,22.8,22.6,22.6,22.3,23.2
1906,21.7,21.8,22,23.3,23.7,23.1,22.8,22.7,22.7,22.2,21.6,21.8
1907,20.5,21,21.2,22.4,22.7,22.7,22.5,22.3,22.4,22.2,22.1,20.7
1908,20.5,20.8,21.5,22.4,22.9,22.7,22.5,22.3,22.4,22.3,21.3,21.5
1909,20.6,21,21.6,22.4,22.8,22.8,22.4,22.5,22.4,22.5,21.5,21
1910,21,20.4,21.2,22.3,22.9,22.6,22.6,22.5,22.1,22.2,21.9,20.8
1911,20.8,21.6,22.1,22.9,23.4,23.4,23.4,23,23,22.7,23.6,22.9
1912,21.8,22,22.9,23.4,23.8,23.2,22.9,22.7,22.9,22.7,22.3,22.4
1913,21.3,21.9,22.8,23,23.4,22.8,22.8,23,22.9,22.9,22.6,22.5
1914,21.1,22,22.4,23.2,24.3,23,23,23,23.3,23.2,23.4,23.1
1915,21.6,22.2,22.5,23.3,23.7,23.2,23,23,23,22.8,22.7,21.6
1916,20.6,21.5,22.4,23.1,23.2,23,22.5,22.6,22.9,22.8,22.4,21.8
1917,20.7,21,21.5,23,22.7,22.8,22.7,22.3,22.5,22.4,22.5,21.7
1918,19.9,19.6,21.8,22.3,22.7,22.5,23.1,22.9,23,22.6,23.1,22.2
1919,21.9,22.1,22.8,23.3,23.8,23.3,22.8,23.2,23.1,23,22.6,22.3
1920,20.9,21.4,22.6,23.1,23.6,23.4,23.1,22.7,22.9,22.6,23.1,21.6
1921,21.2,21,22.2,22.9,22.9,22.6,22.6,22.9,22.7,22.4,22.1,22.3
1922,21.6,21.5,21.4,22.2,23,22.9,22.6,22.4,23,22.6,22.6,22.2
1923,20.9,21,21.9,22.8,22.9,23,22.2,22.3,22.2,22.5,22.7,22.5
1924,22,21.6,22.2,22.8,23.2,22.9,22.5,23,22,21.8,22.5,21.3
1925,20.8,20.4,21.4,22.3,23,23,23,22.5,22.6,22.2,22.2,21.3
1926,20.9,21.2,21.7,23.5,24,23.3,22.7,22.5,22.4,22.2,22.3,22.3
1927,21.1,21.1,22.3,22.4,22.5,22.7,22.8,22.5,22.7,22.1,22.3,22.1
1928,21.4,21.5,21.8,22.2,23,22.8,22.6,22.4,22.3,22.2,22.2,22.7
1929,20.9,20.7,21,22.2,23,22.3,22.8,22.6,22.6,21.9,21.8,22.3
1930,20.2,20.3,21.3,22.1,22.9,22.6,23.3,23.3,23,22.7,22.7,22.1
1931,21.8,20.6,21.6,23.2,23.3,23.4,23.1,23.7,22.9,22.7,21.8,21.4
1932,20.2,20.7,21,22.5,22.8,22.8,23,22.8,22.6,22.9,22.7,21.4
1933,21.5,20.3,21.5,22.9,23.1,22.9,22.9,23.3,22.5,22.6,22,21
1934,20.3,20.5,21.2,22.2,23.7,23,23.1,23.1,23.2,22.6,22.5,21.5
1935,20.9,20.5,22.5,22.5,23.1,23,23.3,23.1,23,23,22.7,21.9
1936,21.4,21.5,21.5,23,23.8,22.9,23.1,22.8,22.9,22.2,22.3,22.4
1937,21.3,20.8,22.2,23.1,22.8,22.8,22.7,22.9,22.7,22.1,22.3,22.1
1938,21,22,22.2,22.9,22.8,22.6,22.4,22.8,22.7,22.4,21.9,21.8
1939,22.9,20.3,21.3,22.9,23.5,22.6,22.6,23.1,22.5,22.2,22.4,20.7
1940,19.2,20.6,21.5,22,23,23.5,22.7,22.4,22.8,22.8,22.6,22
1941,21.7,22.1,22.1,23.8,23.2,23.4,23,23.2,23,23.2,23,22.3
1942,19.9,21.3,22.1,22.8,23.1,22.7,22.5,22.1,22.4,22.1,21.6,21.6
1943,20,19.8,21.5,21.4,22.5,22.1,21.8,21.4,21.7,22,21.6,21.2
1944,20.8,20.9,21.3,22.4,22.6,22.3,22.3,22.3,22.5,22.3,21.6,21.2
1945,20.8,21.3,21.5,22,22.6,22.6,22.5,22.3,22.1,22.1,22,21.8
1946,20.6,21.1,21.9,22.3,22.8,22.3,22,22,22.1,21.9,21.7,22.3
1947,21.6,21.6,22.3,22.8,23.1,22.6,22.1,22.3,22,22.4,21.6,21.5
1948,21.8,21.3,22.4,23,23.1,23.7,23.1,23.5,23.1,23,22,21.8
1949,20.3,22,22.2,23,23.5,23.3,23.3,23.3,22.8,23.1,22.6,22.4
1950,21.7,22,22.2,23,23.3,23,22.4,22.9,22.3,22.7,22.9,21.4
1951,20.4,20,20.8,21.9,22.3,22.4,21.7,22.1,22,22,21.7,21.4
1952,20.5,20.9,21.4,22.1,22.6,22.4,22.2,21.9,21.8,22.1,20.8,20
1953,19.7,20.2,20.4,21.7,22.4,22.4,21.8,22.3,22.2,21.9,21.7,20.8
1954,20.6,20.3,21.1,21.8,22.2,22.3,21.7,22.1,22.2,21.6,21,20.7
1955,20.8,20,20.1,21.2,22.5,22.1,21.6,21.7,21.6,21.8,21.4,20.2
1956,19.7,19.7,20.8,21.9,22,21.7,21.9,21.7,21.9,21.7,21.6,20.6
1957,20.2,20.3,21.1,22.6,22.9,23,22.5,22.4,22.6,22.1,22.1,22.4
1958,21.3,21.1,21.6,22.1,23.5,23.3,22.6,22.3,22.9,22.5,21.7,21.2
1959,21.1,21.1,21.3,22.1,22.8,22.9,22.3,22,22.4,22.2,22.2,21.7
1960,21.2,21.2,21.2,22.5,22.9,22.7,22.3,22.8,22.5,22.2,21.9,21.6
1961,21,21.2,22,22.1,23,22.5,21.9,22.4,22.1,21.8,21.5,21.7
1962,21.3,20.9,21.7,22,23.1,22.4,22.3,21.9,22.5,22.2,22,21.3
1963,20.7,20.2,20.9,21.5,22.5,22.8,22.6,22.3,22.5,22.3,22,21.7
1964,21,21.9,21.2,22.3,23,22.5,22.4,22.1,22.6,22.1,21.9,21
1965,19,20.9,21.3,22.1,22.8,22.6,22.1,22,22.2,22,22.1,21.6
1966,21.4,21.5,21.8,22.8,23,22.5,22.3,22.3,21.8,21.9,21.8,21.4
1967,20.8,20.9,20.8,21.8,22.6,22.5,22.5,22.3,22.3,22,22,21.3
1968,20.1,19.6,21.4,21.8,22.3,22.7,22.6,22.5,22.4,22.1,22.2,21.4
1969,21.1,21.1,21.6,22.6,23.3,22.9,22.7,22.3,22.5,22.2,22.4,21.6
1970,21.2,20.8,21.4,22.6,23,23,22.3,22.2,22.2,22.3,21.7,21.6
1971,20.8,20.6,21.6,22,22.5,22.5,22.3,21.8,22.3,22,21.6,21.8
1972,19.8,21,21,22,23,22.9,22.9,22.5,22.4,22.2,22.1,22.3
1973,21.3,21.7,21.7,23,22.7,23.1,22.4,22.3,22.5,22.4,22.2,21.5
1974,19.6,21.1,21,22.5,22.4,22.7,22.3,22.5,22.1,22.4,22.2,20.8
1975,21.1,21.2,21.6,22.6,22.7,22.5,21.8,22.4,22.1,22.1,21.6,21.1
1976,19.5,19.7,21.4,22.2,22.8,22.5,22.3,21.8,21.9,22.1,21.9,21.5
1977,20.2,21.1,20.9,22,22.6,22.8,22.9,22.1,22.7,22,21.9,21.8
1978,21.2,21.1,21.9,22.3,23.2,22.7,22.4,22.9,22.2,22.2,21.5,21.5
1979,20.4,21.1,21.7,22.9,23,23,22.3,22.6,22.1,22.1,22.1,21
1980,20.4,20.7,22,22.5,23.1,22.9,22.3,21.7,22.1,22.2,21.7,21.5
1981,19.9,20.9,21.2,22.7,22.6,22.8,22.2,22.6,22.1,22,22,21.5
1982,20.2,20.4,21.2,22,22.7,22.7,22,22,21.9,21.5,21.7,22.2
1983,21.3,20.9,21.8,22.4,23.1,23.1,22.5,22,21.8,21.9,21.7,21.2
1984,20.3,20.7,21.1,21.9,22.5,22.2,21.6,22.2,21.8,21.9,21.7,21.5
1985,20.3,21.6,21.8,22.8,22.6,22.4,21.6,21.9,22,22.1,21.5,21.2
1986,20.5,20.3,22.2,22.7,23,22.9,22.6,22.7,22.2,22.2,22,22
1987,21.2,20,22.4,22.4,23.2,23.6,23.2,22.4,22.6,22.7,22.8,22.1
1988,21.7,21.9,22.7,23.3,23.6,23.1,22.5,22.5,22.6,22.9,22.6,21
1989,21.3,20,21.7,23,23.2,22.6,22.6,22.2,22.4,22.4,22.2,21.8
1990,20.8,22.2,21.6,23.4,23.4,24,22.6,22.7,22.5,22.1,22.5,22.1
1991,21.7,21.4,21.7,22.1,23.2,23.5,23.1,22.7,23,22.1,21.9,22
1992,21.3,22,22.1,23.3,23.4,23,22.5,22.6,22.5,22,21.6,21.8
1993,21.4,20.5,21.8,22.3,22.9,23.4,23.1,22.8,22,22.3,22.1,22.3
1994,21,21.6,22.3,22.9,23.5,23,23.1,21.8,22.4,22.2,22.6,22
1995,21.8,21.5,22.2,23.1,23.3,23.6,22.8,22.5,22.8,22.6,22.2,21.5
1996,20.6,21.3,22.3,23.2,23.3,23.7,23.4,22.6,23,22.3,22.3,21.8
1997,21,21.8,22.3,22.8,23.9,23.2,23.3,22.9,23.4,22.9,22.6,22.6
1998,22.7,22.8,23.3,23.5,25.2,23.9,23.6,23,23.2,22.8,22.4,22
1999,21.6,21.8,22.3,22.3,23.1,23.1,23.2,22.4,22.5,22.4,22.3,21.8
2000,21.7,21.5,22.2,23,23.3,22.6,23.2,23,22.7,22.8,22.7,22.3
2001,21.5,21.9,22.2,23.1,23.5,23.4,23.3,23.2,22.8,22.8,22.9,22.4
2002,21.7,21.7,22.8,23.3,24.2,23.8,23.9,23,23,22.8,23,23.3
2003,22.3,22.2,22.7,23.8,24,23.6,23.2,23.4,23,22.3,22.4,22.3
2004,22,22.1,23.1,23.7,23.8,24.1,23.2,23.1,22.9,22.7,23,22.5
2005,21.3,22,22.9,23.7,23.5,23.8,23.4,23,22.9,22.6,22.6,21.8
2006,21.3,22.2,22.5,22.7,22.9,22.9,23.5,23.1,22.6,22.5,22.5,22.7
2007,22,21.7,22.2,23.3,23.4,23.1,23.2,22.8,22.8,22.4,22.5,22.3
2008,21.7,21.3,22.3,23,23.1,23.1,23.3,22.7,22.8,22.9,22.7,22.2
2009,21.1,21.4,22.1,23,23.2,23.9,23.4,22.9,23.4,22.7,23,22.8
