1901,21.4,21.9,22.4,21.5,20.4,19.2,17.6,17.9,18.9,19.5,20.9,20.8
1902,21.8,21.9,22.4,21.8,20.2,19.4,18.6,18.2,19.2,19.3,20.8,21.6
1903,21.4,21.9,21.7,21.8,20.3,19.3,18.3,18.4,18.6,19.5,19.9,20.6
1904,21.8,21.9,22.1,21.8,20.7,19.3,18.3,18.5,18.8,19.6,20.6,20.8
1905,21.4,21.8,21.6,22,19.8,19.4,18.8,18.4,17.6,19.2,19.9,21.4
1906,21.2,21.7,21.5,21.2,19.8,19.2,18.8,18.7,18.7,20.2,19.9,20.9
1907,21.4,21.8,22.5,22.3,19.8,19.2,18.2,18.6,19.3,19.9,21,21.9
1908,21.5,22.2,21.8,21.2,20.7,19.3,18.5,18.8,18.4,19.2,20.8,20.4
1909,21.3,21.6,21.8,21.4,20.4,19.3,18.3,18.7,18.9,19.3,20.7,21
1910,21.5,22.2,21.3,21.5,20.2,19.3,18,18.6,19.1,19.8,20.6,21.2
1911,21.5,22.4,22.2,21.4,20.2,19.2,18.2,19,19.1,20,20.1,20.8
1912,21.4,21.9,22.6,21.2,19.8,19.2,18.5,18.2,19,20,20.1,20.8
1913,21.4,21.9,21.7,22,19.8,19.8,18.2,18.6,19.2,20.2,20.9,21.6
1914,21.4,21.9,21.7,21.2,19.8,19.2,18.6,18.2,18.4,19.6,20.2,21.6
1915,21.4,21.9,21.7,21.2,19.8,19.2,18.7,18.7,18.9,19.3,20.6,21
1916,22,21.9,22.4,21.8,19.8,19.5,18.7,18.8,19.2,18.7,20.3,21.2
1917,22.1,22.3,21.9,21.5,20.4,19.6,18.7,18.3,18.8,19.5,20.7,21.1
1918,21.4,22.4,21.7,21.8,19.8,19.2,18.6,18.4,18.5,19.2,20.2,20.8
1919,21.4,21.9,21.7,21.8,20.4,19.2,18.2,18.2,19.2,19.8,20.9,20.8
1920,21.4,21.9,22.4,21.2,19.8,19.2,18.3,18.8,19.3,19.8,20.7,21.5
1921,21.7,21.9,21.7,21.3,19.8,18.7,18.2,18.2,18.4,18.3,20.1,20.9
1922,21.4,21.8,21.6,20.9,19.8,19.2,18.3,18.6,17.8,19.3,20.1,20.8
1923,21.9,21.9,21.7,21.2,19.8,19.6,18.9,18.9,18.8,19.2,20.7,21.7
1924,21.8,21.9,22.4,21.4,19.8,19.2,18.9,18.2,19.4,19.4,20.6,20.2
1925,21,21.6,21.7,21.8,20.6,19.2,18.4,18.7,18.4,19.7,20.8,21.6
1926,21.8,21.9,21.7,21.2,20.2,19.2,18.5,18.1,19,19,20.6,21
1927,21.9,22.2,21.3,21,20,19.5,18.5,18.8,18.9,19.7,20.6,21
1928,22,21.9,22.4,21.2,20.1,19.5,18.3,18.9,18.6,19.2,20.6,21
1929,21.4,21.9,22.1,21.6,20.5,19.2,18.3,18.9,18.7,19.5,20.4,21.7
1930,21.9,21.9,22.4,21.2,20.6,19.5,18.9,18.5,19,19.4,20.8,21.4
1931,22,21.9,21.7,21.9,20.5,19.6,18.7,18.8,19.1,19.4,20.3,21.2
1932,22,21.9,21.7,21.8,20.3,19.5,18.1,18.3,17.6,19.8,21,21.2
1933,21.4,22.9,22,21.7,20.2,19.5,18,18.5,18.3,19.3,19.8,21
1934,21.1,21.9,21.2,21.3,19.1,18.6,18.4,18.8,18.6,19.2,20.8,21.2
1935,21.7,22.4,22.2,21.5,19.4,19.2,18.1,18.9,19.2,20.1,20.8,22
1936,22.4,22.3,22,21.7,20.9,18.7,18.8,18.2,18.2,19.9,20.5,21.3
1937,21.9,21.1,22.4,21.7,20.4,19,18.5,18.5,18.6,19.3,20.2,20.9
1938,21.8,22.2,21.9,21.3,20.7,19.3,18.3,19.2,19,19.6,20.5,20.8
1939,21.3,21.7,21.6,21.2,20.5,19.2,17.4,18.1,18.1,19.3,20,21.2
1940,21.7,22.7,21.9,20.8,20.4,18.8,18.3,18.5,18.5,19.9,20,21.8
1941,22.1,21.9,22.3,21.2,20.5,19.2,18.6,18.8,18.7,18.5,20.4,21.3
1942,20.8,21.5,22.7,22.3,20.2,19.2,18.6,18.9,18.2,19.3,19.2,20.7
1943,21.1,21.4,21.5,21.1,20,18.5,17.8,18.4,19.1,20,20.5,21.1
1944,21.2,21.3,22.1,21.7,20.4,19.4,17.8,18.8,19.5,19.6,19.2,20.2
1945,21.4,21.8,22,21.3,19,18.2,18.4,18.4,18.8,19,20.3,20.6
1946,21.1,21.9,22,21.7,20,20.2,17.6,19.4,19.4,20.3,20.6,22.1
1947,22.3,22.3,22.4,22.4,20.4,20.1,19.3,18.8,19,19.7,20.4,20.7
1948,21.7,21.4,22.1,21.3,20.4,18.9,18.7,19.2,18.8,20.1,20.7,20.6
1949,22,22,22.2,21.6,21.1,19.8,19.1,18.5,19.3,19.3,20.3,21.4
1950,21.4,21.9,21.7,21,20.5,19.1,18.2,18.1,18.7,19.5,20.5,21
1951,21.3,21.7,22.6,22.1,19.6,19.3,17.5,17.3,18,19,21.1,21.7
1952,21.7,22.5,22.1,21.6,20.5,19.8,19.1,17.4,18.3,19.3,20.3,21.3
1953,21.7,22.4,22.1,22.3,20.7,18.5,19.6,17.7,18.5,19.4,21,20.9
1954,21.8,21.5,22.3,21.8,20.3,19.6,19.4,19,19.2,19.5,20.4,21
1955,21.5,22.1,21.2,21.1,19.9,19.1,18.3,17.6,19.8,19.3,20,20.4
1956,21.4,21.6,21.2,20.7,19.7,18.4,17.8,18.1,19,19.3,20.3,21
1957,21.1,21.9,22.1,21.8,19.8,18.7,17.2,18.8,19.2,19.3,19.4,21.4
1958,22.1,23,22.6,22.1,20.3,19.2,17.2,17.7,18.3,19.1,20,21
1959,22,22.3,22.2,21.4,20.1,19.8,19.1,19.3,18.2,20,20.9,21.1
1960,21.5,21.7,21.7,21.1,19.8,19.1,17.9,18,18.8,19.5,20.9,20.6
1961,22.1,21.8,21.4,21.3,20.8,20.1,18.7,18,20,19.5,20.6,21.2
1962,21.8,22.2,21.5,21.8,19.8,19.3,18.2,18.2,18.1,19.6,20,20.6
1963,21.2,21.3,21.7,21.4,19.8,19.7,18.9,18.3,18.6,19.1,20.5,20.8
1964,21.3,22.2,22.3,21.2,20.4,19.4,17.7,19.1,19.2,19.3,20.3,20.3
1965,21.5,21.9,21.6,20.9,19.9,18.1,18,17.1,17.9,18.4,19.1,20.6
1966,21.8,21.5,21.7,21.7,19.1,18.7,17.6,16.8,18.5,18.9,19.8,20.6
1967,21,21.7,21.2,21.6,19.5,18,17.6,18,19,19.5,19.3,20.8
1968,21.6,21.8,21.8,20,18.4,19.7,18.4,17.5,18.1,19,18.9,20.5
1969,21.4,22.6,22.5,21.3,19.4,19,18.5,18.3,17.4,19.9,20.6,21.2
1970,21.2,22.1,22.2,21.6,19.6,19.6,19.2,18.5,18.1,19.9,19.6,19.9
1971,20.1,20.6,20.7,19.9,18.7,19.2,18.2,18.6,18.4,18.6,19.8,20.2
1972,20.4,20.6,20.8,20.6,19,18.6,18.2,17.4,19.4,20.2,20.1,21.4
1973,21.6,22.4,22.1,21.5,20.2,19.5,19.2,18.7,18.8,19.4,20,20.3
1974,20.9,21.8,20.7,20.1,19.5,19.1,18.2,18.9,19.2,19.7,20.5,20.8
1975,21.4,21.7,21.3,21.4,20.9,19.7,19.4,18.2,19.3,20.1,20.6,20.5
1976,21.1,20.6,20.5,20.8,19.8,19.9,18.3,19.3,18.9,18.6,19.7,20.4
1977,21.5,22,22.4,21.3,19.1,18.8,18.6,18.1,16.9,17.9,19.7,21.3
1978,21.8,21.3,21.3,21.1,19.9,18.8,17.8,18.3,17.1,17.9,19.3,20.3
1979,21.4,21.6,21.5,20.7,20.9,19.7,17.9,17.9,18.6,19.3,20.1,20
1980,21.4,22.4,21.8,22.2,18.5,18.1,17.5,17.3,19.1,19.5,19.3,20.3
1981,22.3,22.4,22.1,21.6,20.1,19,17.7,17.7,18.2,19,20.6,22
1982,22.3,22,22.6,21.6,20.1,20.2,20.1,19.1,17,20.1,21.3,20.9
1983,21.6,22.1,22.6,21.3,20.1,19.6,18.4,18.7,18.5,19.6,20.9,21.7
1984,21.4,22.5,22.2,22,21.1,20.1,18,18.6,18.7,19.6,21.2,21.6
1985,21.3,22.8,22.4,21.5,20.2,19.4,19.1,19.4,18.2,19.9,20.9,20.9
1986,21.5,22,22,21.9,19.3,19.1,16.4,17.7,18.5,19.3,20.6,22.3
1987,21.3,22.9,22.1,21.4,18.9,17.4,16.6,16.7,17.4,18.9,20.5,22
1988,22,22.9,22.3,22,20.5,19.8,18.9,18.3,18.9,19.3,19.8,20.7
1989,20.7,21.7,21.2,20.8,20,18.8,17.3,18.5,18.8,19.7,19.7,20.9
1990,21.2,21.2,21.6,19.9,20.5,19.5,17.8,18.2,18.7,19.2,21.1,20.8
1991,21.1,21.8,22.1,21.1,19.4,17.4,18.3,18.1,16.9,18.8,19.8,20.4
1992,20.4,21,21.4,20.4,19.1,20,18.6,17.2,17.1,18.7,18.8,20.8
1993,20.6,21.1,21.5,20.8,19.9,18.7,17.2,17.2,16.7,18.3,20.1,20.2
1994,21.3,21.8,22.3,20.7,19.4,17.7,17.2,17.5,17.1,18.3,20.2,21.2
1995,21,21.3,21.7,21.4,19.7,18.7,18.5,18.3,18.5,19.1,20.2,20
1996,21.2,22,21.7,21.5,19,19,18.5,17.7,18.8,19.3,19.9,21.1
1997,20.7,22.3,21.7,21.6,20,18.7,18.2,18.2,18,20.7,20.9,21.3
1998,22.1,23.7,22.9,22.1,20.1,19.1,18.6,18.3,18.6,19.9,20.8,21.7
1999,20.7,21.2,21.9,21.1,20.2,19,18.6,18.9,19,19.5,20.2,20.2
2000,21.4,22.3,21.2,21.3,20.6,19.6,19.4,18.3,19,19.1,19.1,20.6
2001,20.8,22,21.1,21.1,20.5,19.1,18.3,18.5,19,19.3,20.2,21.2
2002,21.1,21.2,22,21,20.6,19.6,19.1,16.6,18.9,18.8,20.4,20.8
2003,21.8,21.7,22.2,21.6,21,18.8,18.4,16.9,17.2,18.7,20.1,21.1
2004,21.5,22,22.4,21,20.4,19.9,18.4,18,17.9,19.9,20.1,21.8
2005,22,22.5,22.4,20.9,20.2,18.9,17.6,17.9,19.3,20.2,20.6,21.4
2006,21.6,22.1,22.2,22.3,20.3,19.1,18.1,18.2,18.8,19.3,20.5,21.1
2007,22.5,22.1,22.2,21.2,20,19.9,18.8,19.1,19.1,20.4,20.3,20.8
2008,21,21.5,21.4,21.3,19.2,19.6,18.6,18.7,18.8,19.8,19.9,21.4
2009,21.3,21.7,21.3,21.1,19.7,18.5,18.2,18.5,18.4,18.5,19.8,20.5
