1901,22.4,21.4,21.7,20.1,18.4,16.7,15.9,15.6,17.8,20.3,23.1,20.9
1902,22.6,21.6,20.9,21.1,19.1,16.7,16.6,16,20.2,20.9,22.3,21.6
1903,21.9,21.3,21.8,21,19.5,17.7,15.8,16.8,17.2,19.8,21.5,21.3
1904,21.1,21.2,21.3,20.1,19.1,16.4,15.3,16.8,17.5,21.3,22.9,21.9
1905,22.1,21.4,21,19.6,19.3,18.1,15.8,17,17.6,21.5,21.3,21.3
1906,22.9,21.8,22.2,21,18.9,16.7,15.8,16.2,18.2,20.2,21.5,21.3
1907,21.8,21.5,20.8,20.5,18.9,16.9,14.7,16.6,18.8,22.1,21.9,20.8
1908,22.1,21.2,21.9,20.7,18.1,17.4,15.9,17.2,19.5,22.1,22.5,21.1
1909,21.5,21.4,21.3,20.5,18.2,15.6,16.7,16.6,19.5,19.8,22.1,20.9
1910,22,21.6,21.3,20.9,18.3,15.9,15.6,16.8,18.9,21.2,20.3,20.6
1911,21.6,20.7,20.9,19.2,18.1,16.3,16.2,16.6,18.8,21.2,21.5,22.5
1912,22.4,21.1,22.2,21,19.4,17.1,16,17.1,20.1,21.3,23,21.6
1913,21.2,21.1,22,19.6,19.7,16.5,15.4,17.5,19.1,21.9,21.6,21
1914,21.4,22.1,21.5,20.9,19,17.4,15.7,17.1,19.3,20.9,21.1,22.4
1915,22.1,21.8,21.6,21.3,19.1,16.7,16.7,16,18.4,22,21.9,21.5
1916,22,21.2,21.7,20.8,18.5,16.6,14.6,16.9,18.6,20.8,20.6,20
1917,21.1,20.2,20.7,20.2,19.5,17.2,16.6,16.7,18.2,18.9,21.3,20.2
1918,22.1,20.9,21.1,19.8,18.4,17.1,15.5,16.2,18.6,21.3,21.7,21.7
1919,22,21.7,21.7,19.6,17.5,16.6,14.9,17.8,20.1,20.8,22.7,22
1920,21.7,21.2,21.2,19.5,18.9,15.6,14.7,16.9,20.1,22,21.4,20.8
1921,21.4,21.2,20.7,19.6,18.5,16.5,15.8,16.7,18.9,21.5,21.5,20.7
1922,20.9,21.1,21.3,18.8,18.3,16,14.8,16.6,18,20.4,21.8,21.9
1923,22.3,21.7,21.9,21.1,19.4,16.8,16.7,16.1,19.5,21.2,22.5,21.7
1924,22,21.4,22.1,20.2,19.2,16.9,16.5,17.1,19.1,20.6,21.6,21.1
1925,21.6,21.4,21.1,21,18.1,18.1,17,16.4,20.5,21.4,21.6,21.7
1926,22.7,22.2,22.7,21.9,19.6,18.3,16.7,17.5,20.2,21.6,23,21.9
1927,21.9,21.8,21.1,20.7,19,17,15.3,17.2,19.1,21.3,21.8,22.3
1928,21.3,21.9,21.9,21.6,19.7,16.6,16,17,18.9,21.5,22.2,21.5
1929,22.4,20.3,22.4,21.1,18.9,17.5,16.7,17,19.1,22.3,22.4,21.1
1930,21.1,22,21.3,20.6,17.7,16.3,15.6,15.9,20.3,20.6,22.3,21.8
1931,21.1,21.3,21,20.2,18.5,16.3,15.8,16.3,17.8,19.8,20.6,21
1932,22,21.1,21.6,19.7,17.5,16.5,15.9,16.7,18,20.1,22.2,21.2
1933,21.8,20.8,20.7,20.3,18.5,16.3,15.8,16.6,17.4,20.7,22.3,21.3
1934,21.4,21.2,21.6,20.5,18.8,15.2,15.7,15.3,17.7,20.2,21.5,20.6
1935,21.6,21.1,21.8,20,19.2,16.7,14.4,16.9,19.4,21.1,21.1,21.1
1936,21.5,22.4,21.9,20.6,19.1,16.2,15.6,16.1,18.5,21.7,22,21.1
1937,21.4,21.6,21,20.5,18.3,17.4,15.7,16.4,19.8,20.4,23.1,21.7
1938,22,21.6,21.9,21,19.2,16.2,16.5,17.1,18.8,20.6,20.7,21.9
1939,22,21.9,21.4,20.6,19.2,17,16.3,16.2,19.2,21,22,20.9
1940,21.1,21.1,21,20.2,18.1,16.3,15.5,16,17.8,19.3,20.7,21.2
1941,20.5,21.6,21.8,20.9,18.6,17.1,15.7,16.8,19.2,20.6,21.3,21.8
1942,21.9,22,22.1,20.6,18.2,16.5,15.4,16.7,18.9,19.1,21.3,21.4
1943,21.3,20.8,21,20.8,18.3,16.2,15.1,16.5,16.5,19.5,21.1,21.2
1944,21.3,21.7,21,19.9,18.6,18,15.4,16.5,18.9,19.6,21.9,21.3
1945,22.4,21.1,21.9,21.3,18.4,16.1,15.5,16.5,18.6,21.9,21.3,21.1
1946,21.7,22.1,21.2,20.4,18.8,16.5,16.2,16.8,17.2,20.8,21.1,21.5
1947,22.2,22.2,20.9,20.9,18.8,16.7,17,16,18.4,20.1,21.1,21.9
1948,21.9,21.8,21.6,21.4,20.1,17.2,16.3,16.6,18.4,20.2,21.5,20.8
1949,22.3,21.9,21.5,20.2,18.7,16.7,16,17.3,19.2,21.2,21.9,22
1950,22.3,20.9,21,20.3,17.6,16.3,15.1,16.5,17.3,20,21.5,21.3
1951,20.1,19.8,20.4,20,18.4,16.2,16.4,17.5,17.9,19.9,20.3,20.8
1952,20.9,21.3,21.4,20.2,18.8,15.9,15.7,16.4,17.8,18.9,19.5,20.5
1953,20.9,20.8,21.1,20.2,18.3,17.9,16.3,15.8,17.5,18.9,21.1,21.1
1954,20.8,21.5,20.8,20.2,18.8,16.8,16.1,16.5,17.6,20.2,20.3,20.9
1955,21.5,21.2,20.7,19.4,18.2,16,16.1,16.6,18,20,20.9,20.8
1956,20.5,20.2,20.8,19.7,17.3,15.9,15.5,16.3,18,19.7,21.1,21.1
1957,21.8,20.4,20.6,19.6,17.9,16.6,15.5,16.4,18.3,19.7,21.4,21.1
1958,21.4,21.4,21.5,20.8,17.6,16.1,15.9,16.8,18.7,19.1,20.7,20.7
1959,21.2,21.2,20.7,19.4,18.2,16.5,15,16,17.9,18.8,21.1,21.5
1960,21.6,21,20.1,19.7,18.6,16.8,15.5,15.8,17,18.3,19.4,20.1
1961,21.5,22,21.3,21.1,20,17.4,16.6,16.4,17.5,20.2,21.4,20.9
1962,21.8,21.4,21,20.1,17.5,16.1,15.2,16.1,17.6,18.5,20.5,21.1
1963,21.2,21.1,20.9,20.7,17.6,16.4,15.8,15.3,17.3,20.1,20,20.8
1964,21.4,22,21,20.1,17.5,16.4,14.9,15.5,17.2,18.4,20.7,20.3
1965,20.3,20.8,19.9,19.5,17.3,15.9,15.4,16.2,17.7,18.8,20.1,20.6
1966,21.5,21.1,20.3,20.7,19.4,16.7,15.7,16.1,18.7,18.9,20.6,21.1
1967,21.5,21.6,21.5,20.5,18.9,16.9,16.7,16.4,18.2,19.9,20.3,20.5
1968,20.7,20.9,20.8,19.9,18.2,16.3,15.3,15.9,17.6,19.2,20.3,20.5
1969,21.4,21.8,22.2,21.4,18.5,16.3,16.1,15.8,18.8,21.1,21.9,22.1
1970,21.8,22.3,22,20.4,18.6,16.5,16.2,16.1,17.6,20.1,21.3,20.9
1971,20.7,21.3,20.9,20.3,18.6,15.6,15.6,15.1,17.1,19.4,20.1,20.6
1972,20.6,20.2,20.6,20,18.6,15.5,16.2,16.9,17.6,19.4,20.7,21.3
1973,20.8,21.1,21.1,19.6,18.1,16.5,15.4,15.6,17.9,19.3,20.8,20.1
1974,20.4,20,19.8,19.9,18.3,15.6,15.1,15.6,16.8,18.6,20.5,20.6
1975,20.9,20.5,20.4,20.2,17.9,15.9,15.5,14.9,16.3,18.4,19.8,20.3
1976,19.6,20.8,20.3,20,18.3,16.2,16,16.6,17.5,19.1,20.5,20.9
1977,21.1,20.5,20.9,19.8,18.8,16.7,15.6,17,17.3,20.3,20.6,21.4
1978,22,21.7,20.3,19.9,17.9,15.9,15.7,15.7,18.7,19.9,20.2,20.7
1979,21.2,20.7,21,19.4,17.7,15.5,15.2,16.1,18.3,19.9,20.4,21.2
1980,21.2,21.5,21.1,20.5,17.9,16.3,15.6,15.5,17.3,19.6,20.8,20.8
1981,21.6,21.2,21.1,19.8,17.6,16.2,15,16.8,17.5,19.8,20.6,21.2
1982,20.8,21.2,20.9,20.2,18,17,16.8,16.5,17.6,19.1,20.6,20.8
1983,21,22,21.6,20.2,18.6,16.9,16,16.1,17.3,19.5,21.2,20.8
1984,21,20.9,20.7,19.4,17.8,15.7,14.4,15.4,17.7,18.9,20.4,21.1
1985,21.5,21,20.7,19.4,17.5,15.9,15.7,15.9,17.1,17.8,20,20.9
1986,21.1,21.2,20.6,20.3,17.8,14.6,14.7,15.9,17.2,19,20.3,21.1
1987,21.1,21.6,21.7,20.4,18.1,15.6,16.6,16.3,17.8,19.9,20.4,22.2
1988,21.6,21.1,21.1,20.5,17.3,16.9,15.8,16.2,17,19.6,20.3,20.9
1989,20.9,20.6,20.9,19.5,17.8,16.4,15.9,15.7,17.5,19.4,20.4,21.1
1990,21.5,21.8,21.6,20.9,18.3,16.6,14.9,16.7,18.3,20.2,19.6,20.6
1991,22.2,21.5,22.1,20.2,18.9,16.4,15.1,16,18.1,19.7,21,20.6
1992,21.7,20.8,22.4,20.6,18.8,16.4,14.5,16,17.7,19.7,21.4,22.2
1993,21.7,21.2,20.4,20.5,18.5,17.3,15.4,16,17.1,19.4,20.4,21.2
1994,21.4,22.4,21.1,21.6,18.9,17.2,14.5,17.4,19,20,21.2,21.9
1995,21.3,21.6,21.7,20.7,18.6,16.7,15.8,16.5,18.4,19.5,20.7,21.6
1996,21.3,21,21.6,20.9,18.5,16.7,15.6,15.7,18.9,18.9,21.5,21.3
1997,20.9,21.1,21.7,20.9,18.6,16.7,15.6,16.8,19.2,19,22.3,21.8
1998,22,22.1,22.3,20.5,18.8,16.8,15.3,16.6,17.7,19.4,20.7,21.1
1999,21.1,21.7,21.2,19.8,18.6,16.3,15.1,16,17.9,19.1,20,21.4
2000,21.4,20.7,20.6,20.5,18.8,16.2,15.7,16.7,17.2,19.6,20.9,21.3
2001,21.5,21.8,22.6,20.6,18.7,16.3,15.8,16.2,17.7,19.4,21,21.2
2002,21,21.6,21.5,20.2,18.3,16,16.1,17.4,17.8,19.5,21.7,21.4
2003,21.1,21.3,21.7,20.5,19.9,16.4,15.6,16,17.6,20.1,21.2,21.1
2004,21,21.3,20.9,20.2,17.6,15.5,15.5,16.4,19.4,20.1,20.3,21.1
2005,22,22.5,22,20.9,18.9,17,15.5,16.7,18.5,20,21.3,20.9
2006,21.5,21.7,21.5,20.3,18.5,16.8,16.1,16.5,17.9,20,21.5,22
2007,21.9,21.9,21.6,20.5,19.2,16.9,16.1,16.7,18.4,19.9,21.3,21.7
2008,21.6,21.6,20.8,19.7,18.3,16.2,16.2,16.6,18,20.3,21.3,21.9
2009,22.3,22.3,21.5,20.5,18.7,17.2,16.2,16.5,18.3,20.1,21.2,21.8
