1901,21.4,20.1,20.1,19.6,19.2,18.6,17,17,18,19.6,20.5,20.9
1902,20.5,20.3,20.4,19.9,19.3,18.4,17.4,17.5,17.9,19.2,20.5,20.6
1903,21,20.4,20.5,19.8,19.3,18.1,17.7,17.9,18.5,19.6,20.5,20.5
1904,20.2,20.1,20.2,19.2,19.3,17.7,17.4,17.4,18.3,19.4,20.4,20.6
1905,20.5,20.2,20.8,19.7,19.6,18.5,17.8,17.6,18.3,19.5,20.6,21.2
1906,21.3,20.8,20.7,20.4,19.9,19.1,18.1,17.9,18.3,19.5,20,20.7
1907,20.8,20.2,20.4,19.5,19.3,18.1,17.5,17.6,18.2,19.6,20.6,20.5
1908,20.9,20.4,20.4,19.7,19.5,17.9,17.4,17.8,18.3,19.5,20.6,20.5
1909,21,20.6,20.4,19.4,19.2,18.5,17.7,17.9,18.2,19.8,20.2,20.7
1910,20.8,20.2,20.2,19.2,19.2,18.2,17.9,18.1,18.6,19.7,20.4,20.6
1911,20.9,20.5,21.1,19.4,18.8,17.6,17.1,17.1,18,19.4,20.6,21.1
1912,20.8,20.2,20.3,19.6,19.2,18.4,17.8,17.4,18.5,19.6,20.5,20.9
1913,20.6,20.3,20.2,19.6,18.2,17.4,17,17.3,17.8,19.4,21,21.1
1914,20.6,20.8,20.7,19.8,19.2,17.7,16.7,17.3,18.1,19.3,20.4,20.8
1915,20.7,20.5,20.7,20,19.2,18.3,18,17.8,18.7,19.7,20.7,20.3
1916,20.6,20.2,20.4,19.9,19.4,18.8,18.2,18.1,18.6,19.6,20.3,20.6
1917,20.4,20.2,20.4,19.4,18.8,18.1,17.9,18,18.6,19.5,20.5,20.2
1918,20.2,19.9,20.4,19.4,19,18.1,17.2,17.7,18,19.6,20.9,20.8
1919,20.6,20.7,20.5,19.7,19,17.9,16.8,17.2,18,19.2,20.3,20.8
1920,20.7,20.2,20.6,19.8,19.4,18.9,18.3,18.1,18.6,19.6,20.5,20.6
1921,20.6,20.2,20.2,19.5,19.5,18.9,17.6,17.5,18.4,19.7,20.7,20.8
1922,20.8,20.3,20.3,19.7,19,18,17,16.9,18.1,19.4,20.8,20.6
1923,20.7,20.3,20.2,19.5,19.2,18.1,16.9,16.8,17.9,19.3,20.6,20.6
1924,21.1,20.4,20.7,19.3,19.6,18.4,17.7,17.6,18.4,19.6,20.9,20.6
1925,20.7,20,20.2,18.9,18.8,17.7,17.1,17.3,17.9,19.3,20.6,21
1926,20.8,20.7,21.1,19.9,18.8,18,17.3,17.7,18.6,19.8,20.9,20.9
1927,20.8,21,20.8,19.6,19.2,18.6,17.4,17.3,18.2,19.7,20.5,21.1
1928,20.6,20.7,20.3,19.9,19,17.5,17.3,17.6,18.6,19.8,20.8,20.9
1929,20.9,20.3,20.4,19.2,18.6,17.5,16.8,17.5,18.1,19.5,21.1,20.8
1930,21.2,20.2,20.3,19.8,19.3,17.7,17.5,17.5,18.1,19.5,20.5,20.6
1931,20.7,20.2,20.5,19.7,19.5,18.7,17.7,17.6,18.5,19.2,20.4,21
1932,21.3,20.7,20.4,19.9,19.2,18.4,16.9,17.2,18.3,19.7,20.5,20.6
1933,21.2,20.3,20.3,19.8,19.3,18.2,17,17.6,18.3,19.6,20.4,20.2
1934,20.6,19.9,20.1,19.7,19.1,18.4,17.6,17.3,18.2,19.4,20.6,21.1
1935,20.9,20.5,20.1,19.5,19,17.9,16.9,17.5,18.2,19.4,20.6,21.1
1936,20.8,20.5,20.5,19.7,19.3,18.3,17.8,18,18.6,19.6,20.6,20.8
1937,20.5,20.7,20.3,19.6,19.2,18.2,16.8,17.2,18.4,19.4,20.8,20.6
1938,20.5,20.2,20.7,20,19.5,18.4,17.2,17.6,18.3,19.3,19.9,20.6
1939,20.4,20.2,20.2,19.2,18.9,17.9,17.4,17.1,17.9,19.2,20.3,20.7
1940,20.3,19.9,20.1,19.4,18.5,17.9,17.1,17.3,17.9,19.1,20.4,20.7
1941,20.7,20.4,20.2,19.5,18.7,17.7,16.9,16.7,18.1,19.5,20.1,20.3
1942,20.4,20.2,21,20.7,20.9,19.6,18.5,18.5,19.7,19.8,20.1,20.1
1943,20.4,20.4,20.6,19.4,18.5,17.2,17.2,17.4,17.6,19.2,19.9,20.3
1944,20.4,20.3,19.9,19.3,18.3,17.6,16.7,17.1,18.1,19.3,20.2,19.3
1945,19.5,20,20.1,19.2,17.2,16.4,15.4,17.5,17.5,18.6,19.3,19.2
1946,19.8,19.8,19.6,18.1,18.2,16.2,16.8,15.9,16.8,18.9,19.2,19.3
1947,20.2,20.2,20,18.2,17,16.6,16.6,17.4,17.9,18.8,19.8,19.2
1948,19.9,20,19.9,19.2,17.3,16.3,16.7,15.5,16.5,18.3,19.8,19.1
1949,19.9,19.3,19.9,17.7,17.4,16.7,15.4,16.1,16.5,18.2,19.6,19.2
1950,19.7,20,19.9,18.3,18,17.7,15.7,16,17.4,18.8,19.3,18.9
1951,19.9,19.5,19.9,19,17.2,17.9,16.5,16.7,16.9,18.9,19.7,19.7
1952,19.9,20.6,19.9,19.8,18.3,15.8,17.2,15.7,16.7,18.8,19.7,19.8
1953,19.8,19.7,20.4,19.4,16,16.9,15.5,15.3,15.8,19,19.3,19.2
1954,19.7,20.1,20.5,20.3,17.3,16.2,15.4,16.4,16.2,18.3,18.9,18.1
1955,19.2,19.7,19.4,19,18.5,18.7,17.7,17.8,17.8,18.7,20,18.7
1956,19.3,19.2,19.8,19.4,18.9,18,18.1,16.6,15.5,18.6,19.3,19.6
1957,19.9,19.7,19.7,20.4,17.8,18.7,17.9,16.2,16.8,18.7,20.2,20
1958,20.4,20.4,20.5,20.1,20.4,18.7,17.6,17.4,16.3,19.3,20,20.7
1959,20,20.2,20.4,19.2,18.6,17.8,16.9,16.6,18.6,19.5,20.3,20.7
1960,19.8,19.7,19.4,19.5,18.7,16.5,16.8,16,17.6,18.9,20.1,20.1
1961,19.8,19.6,19.7,19.6,16.9,16.5,16.2,15.7,17.6,18.5,19.8,21.1
1962,19.8,19.7,19.7,17.8,17.8,18.8,19,16.4,17,19.4,20.9,20.8
1963,19.6,19.4,20,19.1,18,17.1,15.2,16.1,17.3,18.7,20.1,20.7
1964,20,20.8,19.7,19.6,18.8,17.2,16.1,16.9,19,19.4,20.1,20.1
1965,20.2,20.3,19.3,17.2,18.2,17.9,15.2,16.2,17.3,18.9,20.4,20.5
1966,20.2,19.9,19.6,19.6,18.8,18.2,16.7,17.4,18.8,18.7,19.8,20.6
1967,19.9,19.5,19.3,18.8,17.9,15.8,15.6,16.1,16.5,18.5,19.7,20.7
1968,20.3,18.7,19.6,19.1,19.5,18,18.3,17.3,18.3,19.4,19.8,20.1
1969,20.5,19.7,20.1,17.6,18.4,17.3,18.7,17.7,17.3,18.9,20.6,21.5
1970,21.8,20.4,20.4,19.6,19.3,18.2,16.2,16.1,18.5,19.8,20.2,20.1
1971,21.1,20,19.8,18.6,18.5,16.8,16.7,18,19.1,20.2,20.5,20.5
1972,21,20.2,19.8,19,17.8,18.4,16.8,18.4,17.9,19.1,20.4,21.4
1973,20.7,21,20.4,20.1,19.8,19,18.4,18.9,18.9,19.9,20.6,19.7
1974,19.3,19.8,19.5,18.8,18.5,17,16.2,17.6,19,20.1,20.1,20
1975,20.5,19.8,20,19.4,18.3,17.8,18.9,18,19.2,19.7,20.6,19.7
1976,19.8,19.8,19.5,18.2,16.4,16.6,16.5,15.9,16.6,18.9,20.2,20.6
1977,20.5,20.1,19.5,19.2,18.6,16.3,15.3,15.8,17.3,18.7,20.1,20.2
1978,20.1,19.5,20.3,19.2,20.6,18.3,18.2,18.2,17.4,18.7,20,20.7
1979,21.3,20.6,20.3,20.1,20.5,18.1,17.7,18.4,18.9,19.5,20.4,20.8
1980,20.5,19.4,20.4,20.2,19.7,18.5,17.6,17.3,18.4,20.1,20.5,20.5
1981,20.5,20.4,20.4,20.5,19.8,19.5,19.7,19.6,20.3,19.4,20,20.6
1982,20.6,20.3,20.4,19.8,18.4,18.3,16.4,17,18,18.2,20.1,20.8
1983,21.3,21.2,20.7,21.1,18.8,17.9,16.7,17.8,18.6,20.1,20.9,20.9
1984,20.5,19.9,20.6,19.7,19.4,17.9,17,18.1,18.6,19.4,20.8,21
1985,21.5,21.1,21.5,19.9,20,16.9,16.1,18.4,18.4,19.8,21.3,21.6
1986,20.6,21.4,21.2,20.4,20.5,19.5,17.7,17.5,19.2,20.3,20.5,21.6
1987,21,20.5,21.2,20.4,20,19.2,17.3,17.4,18.5,20.3,21.5,20.8
1988,21.8,21.5,21.8,20.7,21,17.7,17.8,19.4,19.4,21.3,20.5,19.8
1989,21.5,21.4,20.5,21,19.7,18.9,18.3,16.6,18.5,19.7,21.1,21.3
1990,21.1,20.8,21.9,20.6,19.4,18.8,19,17.3,18.1,20.2,20.9,20.4
1991,21.3,20.9,21.8,20.5,18.2,19.7,18.3,17.2,19.3,19.7,20.9,21.4
1992,21.6,21.4,21.7,21.4,20.9,18.4,17.4,19,19.6,20.1,20.3,21.2
1993,21.1,20.5,21.4,20.9,20.4,19.7,18.6,18.4,18.7,19.8,20.9,20.3
1994,21.2,21.2,20.5,19.5,18.5,17.4,16.8,16.4,17.7,19.5,21.1,20.2
1995,21.1,21.1,21.4,20.4,19.9,18.6,19,17.7,19.8,19.9,21,20.1
1996,21.1,20.8,20.7,20.3,18.7,19.2,18,18.8,18.2,20.5,20.9,19.8
1997,19.7,20.5,20.8,20.1,19.9,17.9,18.2,17.1,17.8,19.1,20.8,20.4
1998,20.8,21.6,22,21.3,19.6,19.5,19.9,18.9,19.4,21.1,21,19.5
1999,19.3,20.8,21.1,20.7,18.1,18.5,17.9,18.1,18.9,20.5,20.7,20.4
2000,20.5,20.5,20.9,20.5,20.5,17.7,18.7,18.5,19.3,20,21,20.4
2001,21.3,20.9,21,21,18.5,18.8,18.6,17.4,19.5,20.9,21.4,21.1
2002,22.2,20.9,22,21.8,20.5,17.9,17.6,16.9,19.4,20.3,20.9,21.5
2003,21.6,21.5,21.6,21.1,19.9,19.2,19,18.8,19.3,19.9,21.4,20.8
2004,21.2,20.8,21.1,21,21,17.9,18.1,18.7,18,20.9,21.3,20.9
2005,21.4,21.4,21.4,19.6,18.7,17.9,17.6,17.2,18.2,19.4,20.3,20.4
2006,20.3,20.2,20.1,19,18.1,17.2,16.5,16.7,17.7,19,20.4,20.5
2007,20.6,20.2,19.9,19.3,19.3,17.5,16.4,16.8,17.9,19.2,20.1,20.4
2008,20.5,20,20,19,18.3,17.9,16.7,16.9,18.1,19.4,20.5,20.3
2009,20.5,19.9,20.3,19.6,18.9,18,17,17.1,18.4,19.4,20.3,20.4
