1901,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1902,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1903,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1904,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1905,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1906,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1907,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1908,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1909,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1910,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1911,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1912,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1913,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1914,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1915,20.6,21,21.9,22.6,22.8,22.1,22.4,21.7,21.2,21.3,21.1,20.7
1916,20.7,21,21.9,22.7,22.7,22,22.3,21.5,21.2,21.1,21,20.5
1917,20.5,20.8,21.9,22.6,22.6,21.8,22.2,21.5,21.1,21.1,21,20.6
1918,20.5,21,21.7,22.5,22.4,21.8,22.2,21.6,21.1,21.2,21,20.6
1919,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1920,20.6,21,21.9,22.6,22.6,21.9,22.2,21.5,21.1,21.1,21,20.6
1921,20.6,21,21.8,22.5,22.5,21.8,22.2,21.4,21.1,21,21,20.6
1922,20.6,20.9,21.8,22.6,22.5,21.8,22.1,21.5,21.1,21,20.9,20.5
1923,20.3,20.7,21.8,22.6,22.5,21.8,22.1,21.4,21.2,21,21,20.6
1924,20.7,21.1,22.2,22.8,22.6,21.7,22,21.6,20.9,21,20.9,20.5
1925,20.4,20.8,21.5,22.5,22.6,21.9,22,21.4,20.9,21.2,21,20.7
1926,20.7,21.2,22,23,22.9,22,22.2,21.4,21,21.1,21,20.5
1927,20.5,20.8,21.8,22.3,22.4,21.7,21.8,21.5,20.9,21.1,21,20.4
1928,20.5,21,21.8,22.6,22.6,21.8,22.2,21.4,21,21.1,20.9,20.5
1929,20.6,21.1,22,22.5,22.5,21.8,22.1,21.4,21.1,21.2,21,20.5
1930,20.6,21,22,22.6,22.5,21.8,22.1,21.4,21.1,21,21.1,20.6
1931,21,21.4,22.3,23,22.7,22,22,21.7,21.3,21.5,20.8,20.9
1932,21,21.3,21.8,23,22.6,21.7,21.9,21.5,21.2,21,20.6,20.8
1933,21.1,21.3,21.7,22.9,22.6,21.7,22.3,21.2,21.1,20.8,20.1,20
1934,20.4,20.5,21,22.7,22.1,21.7,21.9,21.8,21.4,20.9,20.9,20.8
1935,20.2,20.2,21.9,22.7,22.3,21.8,22.2,21.5,21,21.1,20.8,20.7
1936,21.2,21.8,22.7,23.1,22.8,21.9,22,21.6,21.4,21.3,21.5,20.6
1937,21.2,21.4,22.3,23,22.7,22,22.3,21.5,20.9,21,20.6,20.8
1938,20.6,20.9,21.7,22.1,22.4,21.8,22,21.4,21,21,20.9,20.2
1939,20.8,20.9,21.5,22.2,22.5,21.7,22.1,21.8,20.9,21.2,20.7,20.8
1940,20.7,21.1,21.9,22.5,22.5,21.9,22.4,22,21.2,20.9,20.9,20.5
1941,21.2,21.7,23,23.3,22.9,22.6,22.4,22.1,21.5,21.4,21,20.8
1942,20.3,21.5,22,22.8,23,21.9,22.1,21.4,21.1,21,20.9,20.6
1943,20.2,20.1,20.6,22,22.3,21.6,22.1,21.4,21.5,20.8,20.6,20.4
1944,20.2,20.7,22,23.1,21.9,21.2,22.3,21.4,20.9,20.9,21,20.1
1945,20.7,21.1,22.1,22.1,21.9,22.2,22.2,21.4,21.2,20.7,20.6,20.5
1946,20.5,20.6,21.7,22.4,22.7,22.3,22.3,21.7,21.2,20.8,20.9,20.6
1947,20.7,21.2,22.3,22.6,22.2,21.7,21.7,20.9,20.7,20.8,21,20.4
1948,20.4,20.8,22.1,22,22.4,21.4,21.3,20.8,21,21.2,21.3,20.6
1949,19.8,20.7,21.7,22.5,22.6,21.6,21.5,21,20.4,20.9,20.1,19.5
1950,19.9,19.6,20.5,21.9,22,21.1,21.4,20.7,21,20.6,20.2,20
1951,20.5,20,21.7,23.1,23.5,22.9,22.6,22.2,22.2,21.5,21.3,20.9
1952,21,20.9,21.6,22.5,22.2,21.9,21.8,22.5,22.3,20.9,21.8,20.2
1953,20,20,21.2,22.9,22.3,22.1,22.5,22,21.1,21.3,20.8,20.8
1954,20.2,20.2,21.3,21.7,21.6,20.3,20.8,20.6,20.7,19.8,21.8,19.8
1955,20.2,20.6,21.1,21.8,22.3,21.5,21.4,21.2,20.9,20,20.5,19.7
1956,20.2,21.9,23.5,23.9,22.9,22.2,22.1,22.2,21.4,21.7,21.3,20.6
1957,21.2,22.1,22.4,23.4,23.4,23.3,22.8,22.6,22.5,22.2,21.8,20.8
1958,21,21.7,23.2,23.1,23.5,22.7,23,21.9,21.9,21.8,21.1,20.4
1959,19.9,21.2,22.2,22.1,23.2,22.1,23.3,21.8,22.3,21.4,21,20.5
1960,20.9,21.3,21.9,23.4,23,22.6,22.8,22.2,22,21.4,21.3,20.5
1961,20.5,21.4,22,23.2,22.5,21.7,21.4,21.6,20.1,20.6,20.7,19.9
1962,20.1,20.6,21.7,22.3,21.7,20.9,21,21.1,21,20.1,20.6,20
1963,20.2,20.9,21.9,22.1,22.5,22.2,22.6,22.3,21.4,21.3,20.8,21
1964,20.5,21.7,22.3,22.6,22.7,21,21.2,20.7,20.5,20.2,21.3,19.9
1965,20,21.4,21.7,22.5,22.9,22.8,23.2,21.1,21.2,21.6,21.7,20.3
1966,21.5,22.1,22.6,23.5,22.4,22.2,22.5,22.2,21.7,20.8,21.1,20.5
1967,21,21.2,21.2,22.1,23.4,21.8,22.2,21.6,20.8,21.6,20.4,20.9
1968,21.2,20.3,21.2,21.5,21.9,21.6,22.5,22,21.3,21.4,20.6,20.8
1969,20.1,21.1,22.7,23.2,23.4,22.2,23,21.4,21.7,20.7,21.2,20.9
1970,21,20.6,22.5,23,22.2,21.9,21.5,20.9,20.7,20.5,20.3,20.4
1971,20.2,20.7,21.4,22.1,22.3,21.7,21.8,21.1,20.5,20.9,20.6,20.4
1972,20.2,21,21.9,22.9,22.8,22.6,22.9,21.9,21.3,21.9,21.8,21.6
1973,21.7,21.7,23,23,22.7,21.8,22.2,21.3,20.8,20.7,20.9,19.8
1974,20.1,20.1,21.1,22.3,22,21.4,21.7,21.2,20.3,20.3,20.7,20.2
1975,20.5,18.1,19.6,20.1,21.2,20.4,19.8,19.9,19.7,20.5,20.1,19.4
1976,20,20.3,21.3,20.5,21.3,20.9,21.2,20.2,20.6,20.4,21.6,20.9
1977,18.4,18.7,20,20.8,21.6,21,21,20.5,20.6,20.3,20,21.3
1978,19.6,20.8,21.9,22.7,22.7,21.8,22,20.9,21,21.1,21.5,20.6
1979,20.7,21.5,22.1,22.6,22.7,21.9,22.5,21.5,21.1,21.5,20.9,20.5
1980,20.1,20.4,21.3,22.5,23,22.2,22.5,21.6,20.7,21.8,20.7,20.4
1981,20.5,20.6,21.8,22.4,22.6,21.7,22.5,21.4,21.5,21.4,20.6,21.1
1982,21.1,21.6,22,22.7,22.4,22.4,23,23,21.8,21.6,21.1,21.5
1983,22,23.3,23.2,23.6,24,23,23.5,22.6,21.8,21.4,20.9,20.5
1984,20.3,20.5,22.2,22.9,22.4,22.3,22,21.4,20.9,21.3,20.2,20.5
1985,20.7,20.3,21.9,22.5,22.7,22.2,22,21.4,21.1,21,20.8,20.5
1986,20.8,20.6,21.5,22.3,22.8,22.1,23.2,22.3,22,21.2,21.2,21.1
1987,21.2,21.2,22.9,22.5,23.1,23,22.9,22.5,22.3,22,21.7,21.4
1988,21.6,21.1,21.5,23.1,23,21.9,22.5,21.3,21.5,21.2,21,20.6
1989,20.9,19.7,20.7,21.9,22.6,21.9,22.4,21.5,21.1,21.5,21.4,20.6
1990,21.5,20.8,21.6,22.6,23.4,22.9,22.4,22.1,21.9,21.4,21.3,21.2
1991,21.8,21.2,22.5,22.6,23.9,22.7,24,23,23,22.6,21,21.7
1992,21.9,21.2,22.1,22.8,24.4,23.8,23.5,22,22.3,22.5,21.6,21.8
1993,21.7,20.7,21.8,23.7,23.7,23.6,24.1,23.2,22.3,22.8,21.8,21.3
1994,21.4,21.1,22.2,22.8,23.8,23.5,24,22.9,23.2,22.7,21.5,22
1995,21.9,21,22.4,23.5,23.6,23.1,23.5,22.2,22.8,22.2,21.8,21.7
1996,21.1,21.3,21.9,22.6,22.4,21.9,22.7,22.3,21.4,21.3,21.8,21.3
1997,20.8,20.7,21.8,23.2,23.7,22.7,24.2,23.5,22.4,22.8,22.1,21.8
1998,23,22.5,23,23.5,24.9,23.5,22.7,22.3,21.7,21.7,22,20.7
1999,20.9,21,21.2,22.8,22.3,21.8,22.3,21.4,20.7,20.9,21,20.1
2000,20.4,20.6,21.8,22.7,22.6,22,22.4,22.1,21.1,21.9,21.5,20.8
2001,20.8,21.6,22.1,23.4,23.5,23,22.9,22.9,21.8,22.3,21.6,21.4
2002,21.7,22.3,23.2,23.7,23.3,23,23.5,21.4,22.1,22.6,22.1,22.1
2003,22.1,22.7,22.6,23.7,23.4,22.4,23.2,22.2,22,22.2,21.6,21.2
2004,21.7,22.2,23.2,23.9,23.3,23.3,22.7,22.5,21.5,21.8,21.4,21.4
2005,21,21.5,22.6,23.6,23.3,22.4,22.9,22.1,21.9,21.1,20.9,20.5
2006,21.1,21.4,22.2,23,23.3,22.9,23.1,22.8,22.2,22.5,21.1,21.3
2007,22,21.2,22.9,23,22.7,22.4,22.7,21.6,21.7,21,21,20.6
2008,21.2,21.2,22,22.6,22.4,22.2,22,21.4,21.5,21.4,21.2,20.8
2009,21.2,21,21.9,23.2,23.2,22.8,23.6,22.8,23,22.2,21.9,21.8
