1901,21.4,21.9,21.4,20.9,20,18.1,17.5,18.7,20.1,20.6,20.7,21.2
1902,21.3,21.2,21.4,20.9,20.1,18,17.9,18.2,20.1,20.5,21.1,21.5
1903,21.7,22.4,21.5,20.4,19.3,17.7,17.4,17.9,19.9,20.1,20.3,20.4
1904,20.7,20.9,20.8,20.4,19.1,18,17.1,18.2,19.6,20.1,20.9,21.2
1905,21.2,21.8,21,20.8,19.8,18.4,17.7,18.2,19.6,20.6,21,21.1
1906,21.3,21.7,21.4,21,19.7,17.5,17.3,18.1,19.9,19.9,21,20.6
1907,21,20.8,21.6,20.4,19.6,17.9,17.1,18.1,19.9,20.2,20.9,21.4
1908,21.5,21.3,21.5,20.8,19.8,18.3,17.2,17.7,19.5,19.6,20.5,21
1909,21,21,21.4,20.3,19.8,17.2,17,17.7,19.9,20.2,20.5,20.9
1910,20.6,20.9,20.4,20.6,19.2,18.1,17.2,18,19.8,19.8,21,20.8
1911,20.8,21.9,20.7,21,19.5,17.7,17.6,18.3,20.2,20.8,21.1,22
1912,22.2,22,22.3,21.4,20.1,18.6,17.2,18.4,19.6,20.3,20.4,21
1913,21.3,21.9,21.5,20.5,19.2,17.8,17.6,17.8,19.3,20.2,21.2,21.7
1914,21.8,22.4,22,20.9,20.3,18.4,17.9,18.6,20,20.1,20.7,22.1
1915,22.5,22.3,23,22.1,20.9,18,17.5,18.5,19.6,20.5,20.4,21.3
1916,21.4,21.1,21.2,20.5,19.3,16.8,16.4,17.4,19.7,19.7,19.5,20.4
1917,20.6,20.3,21.1,20,18.6,17.2,16.9,17.7,18.8,19.6,20.3,19.8
1918,21.2,21.2,22.2,20.2,19,18.8,17.7,19.2,20.4,20.8,21.7,22.3
1919,23,23.6,22.4,21,20.8,18.1,17.7,18,21,21.1,21.7,22.2
1920,22.3,22.5,22.2,21.2,19.9,17.6,17.8,18,20.6,21.6,22.3,22.7
1921,21.9,21.5,21.9,20.8,19.9,16.5,17.1,17.7,19.8,20.6,21.3,22.6
1922,22.6,22.7,22.3,21.4,19.5,18.2,17.7,18.3,20.4,20.3,21.3,22.1
1923,20.8,21.4,21.4,20.3,19.8,18.2,17.7,18.5,20.4,20.5,21.6,21.4
1924,22.8,22,21.9,21.2,19.6,17.8,17.4,17.9,19.5,20,20.6,20.8
1925,21,20.6,20.8,20.9,20.4,18.4,17.3,19.2,19.6,21.3,21.5,22.2
1926,23.1,22.9,21.8,21.1,20,18.6,17.4,18.7,20.8,22,22.8,22.7
1927,22.6,22.3,22.3,21,19.7,18.1,17.3,18.4,20.8,21.9,22.5,23.1
1928,22.9,23,21.6,21.1,20.7,18.4,17.3,18.5,20.5,21.1,22.7,22.8
1929,23,22.6,22.3,21,20.1,18.5,17.4,18.2,20.3,21.3,22.1,22.5
1930,22,22,21.7,21.1,19.6,18.3,17.4,17.9,19.5,21.4,22.1,23.2
1931,23.2,23.1,21.8,21.4,20.5,18.5,17.1,18.8,20.4,21.6,22.8,22.3
1932,22.3,22.8,22,21,18.9,17.4,17.9,18.7,20.6,21.6,22.2,22.5
1933,22.6,22.2,22.3,20.9,19.8,18,16.8,18.5,20.8,20.5,21.7,22.7
1934,21.8,21.1,22.2,20.8,20.1,18.5,17.5,17.8,19.7,21.3,21.9,22.6
1935,22.3,22.3,22.5,20.8,19.5,18,17.5,17.9,20.4,22,22.2,22.9
1936,22.4,22.8,21.7,21.1,20.7,18,17.5,18.3,20.6,21.5,21.9,22.7
1937,22.2,22,22.1,21.8,20.5,19,18.8,19.7,21.1,21.4,22.9,22.8
1938,22.7,22.4,22.5,21.9,20.4,18.4,18.5,19.1,21,21.3,22.2,22.6
1939,22.2,22.4,22.5,22.5,20.4,19.5,18.7,18.4,20.7,22,22.3,22.5
1940,22.5,23.3,22.9,21.9,21,19.2,19.1,18.8,21.3,22.3,23.2,22.6
1941,23.3,22.5,23.3,22.4,21.2,19,18.7,19.9,21.8,22.9,23.3,23.4
1942,23.8,23.5,22.9,22.7,21.6,19.6,19,20.5,21.8,22.8,23.6,23.3
1943,24,23.3,22.8,22.8,21.6,19.7,19.4,19.8,21.2,22.8,23.5,23.1
1944,23.1,22.8,21.8,22.9,21.9,20.3,18.5,20,21.8,22.7,22.9,23.5
1945,23.3,22.6,22.9,22.4,21.2,17.7,18.9,20.1,21.6,22.1,22.3,22.3
1946,22.7,23,22.5,20.8,19.8,19.5,17.4,19.4,21.3,22.1,20.9,20.6
1947,22.7,22.6,22.5,22.1,20.8,17.3,16.8,16.8,21.4,21.9,22.1,20.8
1948,23.5,21.1,20.3,20.2,20.6,18.8,17.2,19.7,21.3,21.3,22,21.8
1949,21.4,21,21.5,20.4,21,19.2,16.5,19,21,21.8,22.8,23
1950,21.1,21.4,20.7,20.7,20.5,19,17.6,19.6,21.4,21.6,22.8,21
1951,21.3,20.7,21.3,20.3,20.6,18.1,17.3,18,20.3,21,20.9,21.9
1952,21.5,20.7,21.8,19.7,18.8,14.7,15.4,16.7,18.2,20.6,20.6,20.9
1953,20.8,21.6,20.9,20.3,18.6,17.4,15,18.4,20.8,20.8,20.7,21.6
1954,21,21.1,20.8,21,18.7,18.2,17.1,19.3,20.4,19.9,20.8,20.9
1955,20.9,21,20.9,20.6,18.8,18.6,15.6,18.1,20.8,20.8,22.1,21.1
1956,20.6,21.1,21.5,19.7,17.9,16.3,16.9,17.1,21.3,20.1,21.1,21.9
1957,21.4,21.3,21.3,19.2,19.5,17.2,14.5,17.3,18.7,20.1,20.6,21.4
1958,22.6,22.7,22.5,20.5,18.1,17.3,18.3,18.2,21.4,21.5,20.9,22
1959,22.6,22,22.3,20,18.4,17,16,16.3,19.1,19.6,20.8,21.6
1960,21.7,21.3,21.3,19.6,17.1,16.3,14.8,18.7,20.6,20.2,19.5,21.6
1961,21.8,22,22,21.4,19.9,15.2,17.4,20.2,22.7,21.8,22.1,22.1
1962,21.5,21.2,21.9,22.1,20.6,18.7,19,20.1,21.7,21.7,22.7,22.1
1963,22.1,21.7,20.6,22,19.2,18.4,16.9,19.8,21.4,22.1,21.1,21.9
1964,21.4,21.8,20.8,21.1,18.8,17.9,18.4,19.6,20.8,21.7,20.8,22.3
1965,23,22.6,22.3,21.8,20.4,19.9,18.7,18.7,21,22,20.8,21.9
1966,22.4,22.4,21.5,22,21.6,18.2,18.1,18,20.7,21.6,21.5,22.3
1967,21.8,21.3,21.5,20.4,20.9,17.6,18.4,19.3,20.1,20.9,20.9,21.9
1968,21.6,21.9,21.8,21.6,18.4,19.1,18.5,19,21.7,21.6,22.3,22.8
1969,22.5,22.1,22.1,21.9,22.1,18.6,18,19,21.5,21.9,22.5,21.8
1970,21.8,20.8,21.3,21.2,20.1,18.6,18.2,18.3,20.5,20.6,21.1,21.5
1971,22,21.1,21.2,19.8,18.1,17,17.2,17.7,20.4,20.4,21.1,21.7
1972,21.5,21.4,22.2,21.4,20.3,19.2,16.9,18,20.8,21.1,21.7,22.2
1973,22,21.7,22.2,20.9,19.2,18.4,16.2,17.2,18.8,20.6,21.5,21.5
1974,21.4,21.3,21.4,20.4,19.5,18.3,16,17.8,19.8,21,21.9,21.6
1975,21.1,21.4,20.9,20.4,20.5,19.8,18.5,19.3,20.1,21.6,22.2,21.8
1976,21.6,21.1,21.8,21,19.7,18.4,19.1,18.2,20,20.6,20.8,21.5
1977,21.3,22.1,22,21.5,19,18.8,18.2,17.4,20.2,20.6,21.5,21.6
1978,21.2,22,20.9,19.8,19.5,18.2,17.6,17.4,19.3,21,21,21.3
1979,22.2,21.7,21.6,21,20.2,15.9,16.5,18.5,19.2,19.7,22.2,21.7
1980,22.1,21.9,21.8,21,20.4,17.7,16.6,17.6,19.1,20.4,20.8,21.4
1981,21.3,21,21.7,20.8,21.2,17.5,16.1,17.6,18.7,20.7,21.9,22
1982,22,21.5,21.6,21.2,19,19,18.8,18.2,19.4,20.8,21.6,20.8
1983,22.7,23,21.9,22.8,21.1,15.5,18,17.9,19.5,21.1,22,22
1984,21.7,21.9,22.8,20.5,20.4,18.2,17.4,17.4,20.1,22.5,21.2,22.9
1985,22.5,22.2,22.7,19.6,21.4,19.1,18.8,17.4,19.8,21.3,22.1,23
1986,22.6,22.2,22.4,21.7,21.2,18.4,16.8,18.7,19.8,20.6,21.4,22.1
1987,22.4,21.7,21.7,20.5,19,17.6,19.2,18,19.9,21.9,22.4,22.3
1988,22.5,22,22.9,21.9,19.3,16.9,15.2,18.7,21,21.1,21.1,21.2
1989,20.9,20.9,20.3,20.3,18.2,17.9,15.9,18.6,18.5,20.1,21.2,22.4
1990,21,21.4,21.4,20.8,19.9,17.2,15,17.3,19.5,21.2,21.8,21.7
1991,22.4,21.7,22.2,21.6,20.4,18.2,16.4,16.8,21.8,21.2,21.3,22.2
1992,21.7,22,22.9,21.6,21.8,19.9,15.6,18,18.7,21.3,21,21.1
1993,21.7,21.2,21.8,21,19.4,17.9,17.3,16.5,20,20.7,21.2,22.3
1994,22.3,22.2,22.9,21.7,20.6,18.9,17.9,19.1,20.4,21.1,22,22
1995,22.6,22.4,22.2,20.5,18,18.8,17.3,18,20.9,22.2,22,22.6
1996,21.7,22,21.8,21.6,20.2,16.9,18.2,19.3,19.5,21.4,20.8,22.3
1997,21.7,21.6,21.5,21.2,20.1,18.3,18.7,17.3,21.4,21.8,21.8,22.2
1998,23.6,23.6,23.3,21.4,20.7,16.6,19.2,18,18.8,20.9,20.4,21.9
1999,22.3,21.5,21.8,19.9,18.5,17,17.5,16.4,21.8,20.1,22,20.7
2000,21.5,21.5,21.4,21.3,20.3,17.4,15,19.6,20.4,20.6,22.1,21.9
2001,22.1,22.1,21.4,21.6,18.6,16.5,17.9,19,20.3,21.4,22.6,21.8
2002,22.3,21.8,21.6,21.5,20.5,17.9,17.1,19.5,20.3,21.3,21.1,21.8
2003,22,21.5,22,20.9,20.1,19.8,17.6,16.5,19.7,20.9,21.4,22
2004,22.3,21.5,22.1,21.6,19.4,17.5,17.2,17.9,20.4,21.2,22,22
2005,22.6,22,22.1,21.8,20.4,20.5,17.6,19.1,18.9,19.5,21.3,22.3
2006,22,22,22,21.6,20.2,19.5,19,18.1,20.1,20.7,21.3,21.9
2007,21.9,22.1,21.9,21.7,17.9,18.7,17,17.2,19.7,21.1,21.6,21.8
2008,21.8,21.4,21.7,21.1,18.7,16.2,18.8,19.8,19.4,20.9,21.8,21.8
2009,21.7,21.7,22.1,21.7,20.7,17.6,18.2,18.7,20.2,21.3,22.4,21.8
