1901,21.9,22,22.4,21.3,19.3,16.7,16.5,18.4,21.2,23.2,23.5,22.1
1902,21.9,22,22.1,21.8,19.1,17.4,17.4,19,21.9,23.2,23.7,22.7
1903,22.1,22.4,22.4,22,19.9,17.3,16.6,18.8,23,24.4,23.2,21.9
1904,21.5,21.5,21.5,21.5,18.7,17.5,16.4,18.3,20.7,23.7,23.7,21.6
1905,22,22,21.7,21,19.2,18.2,16.5,19,22.3,24.7,23.7,22.6
1906,22.6,21.7,22.1,20.9,19.4,17.1,16.8,18.3,21.5,23.4,22.9,22.2
1907,22.1,21.7,22.1,21.3,19.3,16.9,16.1,17.7,21.3,23.9,23.3,22.4
1908,21.9,22,22.2,21.7,18.6,17.1,16.7,18.9,21.8,24.5,24,22.4
1909,22,22.3,22.3,21.4,19.3,16.9,16.9,18.8,21.5,23.9,23.5,22.6
1910,22.1,22.1,22.1,21,18.9,17,16.6,18.5,21.3,23.3,23.3,22.2
1911,21.6,21.6,21.7,20.9,19.1,16.4,16.1,18.1,20.9,24.1,23.8,23.3
1912,22.7,22.7,21.9,21.9,20.3,16.9,16.3,18,21.8,23.6,24.8,21.9
1913,22,22.2,22,21.4,19.3,16.6,17,18.7,21.9,24.5,24.3,23
1914,22.6,22.1,23,21.9,19.8,17.6,16.7,18.9,22.5,24.8,24.4,22.8
1915,22.3,22.2,22.4,22,19.3,17.5,17.7,18.8,22.2,24.9,24.4,22.9
1916,22.3,22.6,22.9,21.9,19.3,17.3,16.9,18.4,22.1,24.8,23.7,22.6
1917,22.5,23,22.6,21.6,20,17.7,17.2,18.6,21.5,24.2,23.9,21.7
1918,21.3,22,22.1,20.8,19,16.5,16.5,17.4,21.6,25.1,24.2,22.6
1919,22.3,22,22.4,22,18.6,17,16.6,18.1,21.5,23.3,23.5,22.7
1920,22.7,22.6,22.4,21.2,19.9,17.4,16.9,18.6,22.5,25,24.3,23
1921,22.6,22.8,22.8,21.5,19.3,17.4,16.7,18.2,21.6,24.3,23.7,22.3
1922,22.7,22.2,22.9,21.9,19.8,17.6,16.8,19.7,22.3,24.1,24.4,22.9
1923,22.5,22.2,22.4,21.8,19.3,17.3,16.9,18.4,21.8,24.3,25,22.5
1924,21.6,22.5,22.9,21,19.8,17.6,16.8,18.5,21.8,24,23.9,22.2
1925,21.7,22,22.3,21.8,19.4,17.5,16.8,18.3,20.9,23.6,24.1,22.9
1926,22.3,22.7,22.4,21.4,19.7,17.2,16.8,18.4,22.2,24.5,24.1,22.5
1927,22.2,22.1,21.9,21.4,19.2,16.6,16.9,18.5,21.5,24.1,23.4,22.5
1928,22.4,22.2,22.7,21.4,19,17.8,16.4,18.3,22.2,25,24.1,22.4
1929,21.9,22.1,22,21.1,19.6,17.4,17,17.9,22.2,24.7,24.4,22
1930,21.9,22.5,22.1,21.6,18.9,16.9,16.6,18.3,21.8,24.1,24.1,22.5
1931,22.1,22.6,22.9,21.7,20.1,16.7,17.5,19.1,22.3,24.7,23.3,22.3
1932,22.2,22.3,22.3,21.5,19.3,17,16.5,17.9,22.4,24.2,23.9,22.3
1933,21.8,22,22.5,21.4,19.2,17.6,17.1,18.5,21.1,24.2,23.5,21.9
1934,21.7,21.8,21.8,21.1,20.1,17.4,17.4,19.1,21.2,23.6,23.2,21.9
1935,22.2,21.1,22.2,20.5,19.7,17,16.6,17.5,22.3,24.9,23.7,22.5
1936,21.9,22.4,21.9,20.7,19.8,17.3,17,18,21,24.2,24.4,22
1937,22.4,22.5,22,21,19,17.4,16.3,17.6,21.9,23.6,24.3,22.1
1938,22.5,22.4,21.7,22,19.4,17.2,17.3,18.7,22.1,24.4,23.7,22.1
1939,21.9,22.2,21.5,20.6,19.3,16.5,17.1,19,21.2,23.6,23.1,22.1
1940,21.7,21.9,21.8,21.3,19.1,17.5,16.6,19,22.4,23,23.4,23
1941,22,22.7,22,21.7,19.7,17.6,17.2,18.7,22.1,24.4,23.1,22
1942,22.3,22.6,22.2,21.1,19.5,18.3,16.7,19.3,22.2,23.1,22,22
1943,22,21.5,21.5,21.2,19.3,17,17.3,18.8,21.3,24.1,23.7,22.1
1944,21.9,21.9,21.3,20.9,18.8,18.3,17.4,19,22.2,24.6,23.1,22.4
1945,21.9,22,22.2,21.2,19.3,16.1,16.7,18.2,21.5,24.8,23.9,22.2
1946,22.4,22.6,22.2,21.4,19.6,16.7,16.5,17.8,21.8,25.2,23.5,22.6
1947,22.1,22,22,21.7,19.2,17.6,17.1,18.3,21.8,24.1,24.4,22.1
1948,21.9,22.1,21.9,21.3,19.5,17.2,17.1,18.4,21,24.1,23.6,23
1949,23,21.8,21.8,21.5,19.3,17.1,17.6,19.9,22.3,24.3,24.8,22.4
1950,21.6,21.9,22,21.2,17.8,16.6,17.2,18.1,21.3,22.8,23.2,22.1
1951,21.2,20.8,22.3,21.7,19.5,16.7,16.3,18.2,21.8,23.7,23.4,21.7
1952,22.6,21.7,22.3,21.4,19.1,17.4,16.7,18.7,22.1,23.8,22.5,22.8
1953,22,22.4,22,21.8,19.8,16.8,16.8,18.6,21,24.3,25,22.3
1954,22,22.1,22,21.3,20.2,16.4,16.4,18.9,21.7,24.4,23.1,22.2
1955,21.9,21.8,21.9,21.2,19.2,17.2,17.3,18.2,21.9,24.3,24.2,22.1
1956,21.2,21.4,21.9,20.8,18.9,16.6,15.6,18.4,21.1,23.4,22.8,21.4
1957,21.4,21.3,21.8,21.3,18.5,16.5,17,18.9,21.9,23.5,24.6,22.5
1958,22.5,22.3,22.2,22.3,19.4,17.5,16.2,18.1,22.6,23.7,24.1,22.6
1959,22.6,21.9,22.1,21.6,20.3,17.7,17.5,18.9,21.6,23.1,23.4,22.2
1960,21.9,21.6,21.3,20.9,19.4,18,15.9,19,21.7,24.3,23.3,22.9
1961,22.3,21.8,22.2,21.8,20.4,18,17.1,17.5,21.7,24.5,22.8,21.4
1962,21.7,21.9,21.6,21.3,17.5,17.5,17,18.8,21.5,23.8,23.2,21.8
1963,21.7,21.8,21.4,20.5,18.2,16.3,17.4,18.2,21.6,24.5,22.2,21.8
1964,22.1,22.4,22.6,21.3,18.7,17.2,15.6,18.3,20.7,23.8,23.2,22.1
1965,21.3,21.6,21.6,20.9,18.2,16.8,16.4,18.2,21,22.8,23.9,22.3
1966,22.5,22.3,21.9,21.1,19.9,17.3,17.2,19.1,22.2,23.8,24,22.7
1967,22.2,22.6,22.1,21.4,19.1,17.9,16,17.9,21.1,24,23.1,21.8
1968,21.9,21.9,21.6,21.1,19.5,16.6,17.1,18.8,21.7,24.4,23.1,21.4
1969,22,22.7,22.6,22,19.4,17.4,16.9,18.9,21.9,24.2,24.5,22.1
1970,22.3,22.6,22.2,21.5,19.6,17.6,17.7,19.3,22.5,23.6,23.3,21.6
1971,21.7,21.6,21.9,21.4,18.9,16.7,17.2,18.9,21.5,23.4,23,21.7
1972,21.8,21.8,22,21.5,20.3,16.8,16.8,18.7,22.5,23.9,23.3,23
1973,22.7,21.3,23,21.1,20.2,16.7,16.1,18.5,22.3,24.1,23.3,21.6
1974,21.2,21.9,21.6,20.6,18.6,16.2,16.1,18.9,20.9,24,23.5,22.2
1975,22,22,21.7,21.7,19.6,17.1,16.9,17.9,21.5,22.7,23.9,22
1976,21.7,21.6,21.7,20.8,18.1,16.5,16.1,17.5,21.7,23.7,24.4,23
1977,22.3,22.8,22.1,21.2,20,17.3,17.1,19,22.4,24.9,23.9,22.7
1978,22,22.4,21.8,21.3,19,16.5,16,19.6,22.7,24.3,23,21.9
1979,22,22.1,22.2,21.4,19.2,16.4,16.7,19.1,22,24,23.5,22.1
1980,22.4,22.7,22.1,21.3,19.2,16.2,16.1,18.2,22.1,23.4,24.1,22.1
1981,22.5,22.3,22.5,21.1,18,16.7,16,18.7,21.8,23.4,25,23.4
1982,22.3,22.6,22.7,21.6,18.8,17.8,16.8,18.5,21.5,23.1,23.2,23.5
1983,23.2,23.8,23.6,22.6,21.1,18.6,17.9,17.9,22.6,24,25.1,22.3
1984,22.1,22.1,22.6,21.5,20.1,17.5,17.3,18.7,22.6,25,22.8,21.8
1985,22.5,21.8,22.2,20.8,19.2,17.1,17.3,18.2,22.5,24,23.3,22.2
1986,22.3,22,22,21.4,19.2,16.4,16.6,18.9,21.5,23.5,23.5,22.5
1987,22.6,23,23.4,22.1,20.5,16.9,17.5,19.6,22.8,23.6,26.2,23.5
1988,22.3,22.8,22.5,22.5,19.1,18.4,17.8,19.2,22.3,23.9,23.3,22.4
1989,21.4,22.4,21.8,20.9,19,17.1,17,18.8,21.9,23.8,23.9,22.8
1990,22.1,22.4,23,22,19.4,18.4,17.4,18.3,21.1,24.6,25.6,23.2
1991,22.2,23.3,22.2,21.6,20.4,17.8,16.9,18.7,21.7,23.1,23.6,21.9
1992,22.8,23.3,23.6,22.7,20.6,18,17.3,18.2,24.2,23.3,23.3,22.8
1993,22,21.8,21.8,22.2,20.3,17.1,17.2,18.5,21.4,24.6,24,23.2
1994,22,22.6,23.2,22.1,20.1,17.8,16.6,20.1,22.7,23.8,25.9,23.1
1995,22.3,22.5,22.7,22.1,20.5,17.7,17.9,20.4,22.2,25.4,25.8,23.2
1996,22.6,22.6,22.5,20.9,19.6,17.3,17.6,19.8,23,24.8,25.5,23.6
1997,23.6,23,23.1,22.1,20,19.2,17.6,19.5,22.8,24.3,24.6,22.6
1998,23,22.6,23.5,21.1,20.9,17.9,18.1,19.7,21.5,24.3,25.6,22.4
1999,22.2,23.4,22,20.7,19.6,17.7,16.7,18.5,20.7,23.5,24.2,24.1
2000,22.9,22.3,22.2,21.9,19.9,17.9,16.8,18.6,22.4,23.9,22.6,21.9
2001,21.8,22.3,22.3,21.8,20,17.6,17.2,19.7,22.6,25.3,24.4,23.2
2002,22.1,21.9,22.9,22,20.3,17.6,19.2,19.8,22.2,25,24.4,22.9
2003,22.9,23.4,22.9,21.3,19.7,18.1,16.8,19.4,22.5,24.8,25.9,23.2
2004,22.9,22.8,23,21.7,19,17.1,16.9,19.5,22.7,24.7,23.7,22.5
2005,22.9,24.1,24,22.5,20.7,19,18.5,20,22.5,25.5,26.4,24.1
2006,21.6,21.7,22.2,21.3,20,17.5,17.5,19.7,21.4,24.7,24.1,22.4
2007,21.8,22.4,22.5,22.1,19.8,17.8,16.9,19.2,22.6,24.1,24.3,22
2008,22,21.7,21.8,21.3,20.2,17.2,17.3,18.8,22.3,24.7,24.7,22.4
2009,22.6,24.5,22.1,20.7,19.7,18.5,16.8,19.3,23.1,24.8,24.1,23.2
