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