1901,21.4,23.2,25.8,28,28.9,29.2,27.8,27.5,28.2,27.4,23.8,20.9
1902,21.6,23.1,26.2,27.1,28.6,29.4,27.2,28,27.8,27.2,23.8,21.1
1903,21.6,23.1,26,27.7,28.9,28.8,27.6,27.6,27.5,26.9,23.1,20.4
1904,21,22.6,25.6,27.8,27.8,28.3,27.3,27.8,27.7,26.8,23.7,21.1
1905,20.9,22.4,24.9,26.2,27.7,29.9,27.7,27.5,27.3,27,23.8,21
1906,21.7,23.4,24.5,28.1,29.7,28.5,27.6,27.4,28.1,27.1,23.9,21.9
1907,21.8,23.3,24.9,26.6,28.5,28.2,27.6,27,28.2,27.4,24.3,20.8
1908,20.2,23.3,25.9,28.6,28.8,29.4,27.6,27.2,27.3,27.2,23.4,20.4
1909,22.1,23.5,26.2,26.3,28.5,27.8,26.5,27,27.7,27.3,24.7,21.5
1910,21.4,22.9,25.6,27.6,29,27.8,27.1,28.2,28.2,27.2,22.8,20.1
1911,22.3,22.7,25.5,27.3,28.9,28.1,27.9,27.6,27.8,27,24.2,20.5
1912,21.5,24.3,26.6,27.1,29,29.4,27.2,27.1,27.8,27,23.2,20.3
1913,20.8,23.3,25.4,28,28.6,27.6,27.2,27.9,28.3,26.5,23.3,21
1914,20.9,24,25.9,26.5,28.1,28,27.3,27.3,27.2,27.1,24.1,21.6
1915,21.4,23.4,25.5,27.8,29.2,28.6,28.1,27.8,27.6,27.8,25.1,20.8
1916,21,23.9,26.3,28.1,29.7,27.6,26.9,27.5,27.9,26.9,23.8,20.4
1917,20.9,23.3,25.2,27.8,28.5,27.7,27.6,27.5,27.1,26.8,23.5,20.6
1918,20.5,22.8,26,27.1,28,27.5,28.2,27.5,28.5,27.4,24.4,21.2
1919,22.1,23.7,26.7,27.9,29.3,28.2,27.8,28.2,28,27.1,23.9,21.2
1920,21.6,23.8,26.4,28,29.2,29.6,28.8,28.3,28.6,27.4,24.4,20.7
1921,21.7,23.3,26.7,27.5,30.5,29.3,28,27.9,27.9,26.5,23.1,21.4
1922,21.5,23.9,27.1,28.4,29.7,28.9,28,28.4,28,26.6,24,20.8
1923,20.8,23.1,25.2,28,29.5,30.5,27.9,28.2,27.9,26.8,23.8,21.4
1924,21.4,24.3,27,29.3,29.8,30.3,28.2,28,27.5,27.8,23.8,20.9
1925,21,23,26.2,27.5,28.9,28.5,27.4,28.1,28.2,26.7,24.1,20.8
1926,21.3,23.7,25.5,27.5,29.2,30.6,27.7,27.6,27.9,27,23.1,21.3
1927,21.9,23.3,25.9,28.4,29.3,28.9,27.8,27.8,28.2,27.4,23.7,21.4
1928,21.2,23.8,26.4,27.6,29.5,28.8,27.3,28.4,28.3,27.3,24.2,21.7
1929,22.2,22.9,26,28.2,29.9,28.9,28.1,27.9,27.9,26.6,23.5,21.1
1930,20.9,22.6,25.8,28.3,28.7,28.7,28,27.7,27.9,27.1,23.3,20.8
1931,21.7,23.1,25.7,28.4,29,29.7,27.3,28.4,28.1,26.9,23.4,21.7
1932,21.4,23,25.7,27.7,28.5,28.9,27.4,27.6,28.2,27.7,24.3,21.2
1933,20.7,23.5,25.7,27.4,28.1,28.3,27.7,27.3,27.8,26.9,23.8,21.2
1934,20.8,23,26,27.9,29.5,28.8,27.5,27.5,28,26.7,22.8,21
1935,20.8,23.3,25.8,27.3,30.1,29.2,28,27.8,28.1,27.5,23.5,21.4
1936,22.1,23.1,26.4,28.1,28.5,27.5,27.9,27.7,27.9,26.9,24.6,21.8
1937,20.6,23.3,25.7,27,29.1,29,27.8,27.8,28,26.8,23.9,20.5
1938,22.2,22.9,27.2,28.4,29,27.8,27.3,27.8,28,27.3,23,20.3
1939,21.4,23.3,25.6,28.3,29.6,29.5,27.5,27.8,28.2,27.2,23.7,21.3
1940,20,23.4,25.2,27.8,29.2,28.7,27.5,27.7,28,27.3,25.3,21.8
1941,21.9,23.5,26.9,29,29.6,28.6,28,28.7,28.4,27,23.4,22.2
1942,21.3,23,26.5,27.7,30.3,29.9,28.1,27.9,27.5,27.1,24.2,21.8
1943,22.2,21.9,25.8,26.8,28.9,28.5,28.1,27.9,28.2,27.4,24.1,21.6
1944,21.7,23.3,25.4,26.6,29.5,29.7,27.2,27.8,28.1,27.1,23.8,21.7
1945,20.8,23.1,26.2,26.8,29.3,30.1,27.6,28.3,27.9,26.6,23.5,20.5
1946,20.4,23.5,26.3,26.6,29.1,28.8,27.5,27.7,27.9,26.9,24.9,22.3
1947,21.9,23.1,26.2,29,29.7,29.5,27.2,27.7,28,26.9,23.8,21.3
1948,22,24,25.7,27.8,29.1,29.3,27.7,27.8,28.1,27.6,24.7,20.7
1949,21.5,23.3,26.3,27,28.2,28.9,27.5,28.1,27.8,27.5,23.1,20.7
1950,21.5,23.4,25.5,28,29.2,28.9,27.3,28,27.9,26.9,22.9,20.8
1951,21.1,23.8,26.7,28.8,30.2,29.7,28.4,28.3,28.7,28.5,24.6,21.8
1952,21.8,24.5,26.1,28.5,29.7,30,28.1,28.5,28.1,27,24.1,21.9
1953,21.5,24.3,28,29.6,30.7,29.3,28.3,28.1,28.2,27.7,24,21.9
1954,21.2,25.3,27.2,30.1,30.4,29.4,27.7,28.2,28.1,26.5,22.5,21.8
1955,21.6,24.2,27.3,28.8,29.3,29.5,28.5,27.6,27.9,26.6,23.5,21.2
1956,22,22.6,27.2,29.2,30,28.5,27.6,28.1,27.9,26.8,24.1,21.8
1957,22.3,23.4,26,28.7,30.9,30.4,28.1,28.1,28.7,28.1,24.2,22.3
1958,22.9,24.4,27.3,29.3,30.8,31.2,28.2,28.3,28.3,27.6,25.1,22.4
1959,22.3,24.2,27.1,29,30.6,29.3,27.7,27.6,27.9,27.3,23.7,21.1
1960,21.8,24.1,26,29.5,30.6,30.2,27.7,29,28.3,27.4,24.2,22.2
1961,22,23,27.7,29.5,30.5,29.1,27.3,28.3,27.9,27,23.2,19.9
1962,20.3,22.9,26.8,28.6,29.9,29.4,28.2,28,28.3,26.7,23.6,21.6
1963,20.5,23.9,26.7,28,29.4,29.5,27.9,28,28.6,27.4,24.7,22.2
1964,22.6,24.8,27.8,28.8,30,29.8,27.7,27.6,27.9,27.4,24.3,21.5
1965,22.1,24,26,28.4,30.2,31.1,28.3,28.4,28.2,27.5,24.8,22.3
1966,21.8,24.7,27.3,29.4,30.9,29.3,28.5,28.2,28,26.8,25,20.9
1967,21.8,24.6,25.6,28.4,30.3,30,28.2,28,28.5,27.4,23.7,23.1
1968,21.6,24.3,27.4,28.3,30.2,29.1,28.3,28.9,28.8,27,24.3,21.8
1969,21.7,24.9,28.2,29.4,29,30,28,28.2,28.5,27.4,25,21.6
1970,22,25,27.1,29.1,30.3,28.6,28.2,28,28.3,27.3,24.1,20.5
1971,21.9,24.3,25.9,26.3,28.1,28.4,27.9,27.4,28.2,27.1,23.4,20.9
1972,20.6,22.8,26.8,28.6,31,30.5,29.1,28.3,28.7,27.5,25.1,23.1
1973,23.2,25.4,26.7,30,30.1,29.9,28.2,28,28.4,27.4,24.3,21.5
1974,21.2,23.8,27.7,28.9,30.2,30.3,28.5,28.6,28.1,27.6,25,20.6
1975,20.9,24.3,27.5,28.9,30.6,29.2,27.8,28,27.4,27.6,23.2,20.5
1976,20.7,23.8,27.1,28.6,29.9,29.9,28.2,27.6,28.6,28.3,26.1,22.1
1977,21.5,24,27.5,28.2,28.5,28.9,28,28.3,28.4,27.5,25.7,21.6
1978,21.2,23.5,26.1,28.4,30.6,29.8,27.8,27.7,28.2,27.9,25.5,22.1
1979,22.3,23.7,26.6,29,30.6,30.1,29.4,29,28.9,28.1,26.1,22.6
1980,22.6,25,27.2,29.3,30.4,29.4,28.2,28.2,28.6,27.5,24.5,22.2
1981,21.6,24.4,26.4,28.2,29.2,29.9,28.3,28.2,28.3,28.1,24.7,21.9
1982,22.6,24.7,26.5,28.4,30.3,29.9,29.2,28,28.7,27.9,24.7,21.9
1983,21.9,24.7,27.4,28.8,29.9,30.3,28.6,28.4,28.2,27.5,24.9,21.8
1984,22.1,23.5,27.1,28.9,30.4,29.5,27.9,28.3,28.3,27.8,23.8,22.4
1985,22.4,24.5,28.2,29.6,30.2,30,27.6,28.5,28.3,26.8,24.2,22.2
1986,21.5,24,27.3,28.3,29.6,29.3,28.2,28.5,28.6,27.2,24.8,22.7
1987,21.7,23.7,26.5,28.6,29.4,30.9,29.4,28.7,29.4,28,24.9,22.7
1988,22.1,24.6,27.6,28.8,29.9,30.1,28.2,28.3,28.6,27.7,24.8,22.9
1989,21.1,24.3,26.5,29.1,30.3,29.4,28.2,28.4,28.3,27.9,24.7,21.5
1990,22.2,24.5,25.6,27.8,28.4,29.3,27.7,28.3,28.6,27,25.5,22.5
1991,22.6,25.5,27.6,29.1,29.9,28.9,28.6,28.8,28.8,27.2,23.4,20.9
1992,20.5,23.8,27,28.9,29.3,29.7,28.1,28,28.4,27.7,24.8,20.9
1993,22.2,24.2,26.5,27.6,28.9,29.6,28.5,28.3,28.1,27.7,24.4,21.5
1994,22,23.7,27.7,28.6,30,29.4,28.2,27.7,28.6,27.7,24.2,21.5
1995,20.9,24.1,27.1,29,29.1,30,27.9,28.6,28.2,27.3,24.8,21.7
1996,22,24,27.4,28.4,30.5,28.5,28.4,27.5,28.6,27.5,25,21.7
1997,21,23.7,27.1,26.7,29.8,30.7,29.1,28.4,28.5,27.6,25.9,22.7
1998,21.8,24.4,26.4,28.3,30.4,30.5,28.5,28.5,28.6,28.4,26.1,21.9
1999,21.6,25.3,28.3,30.1,29.6,29.5,28.9,28.6,28.4,28.1,24.9,22.4
2000,22.2,24.3,27.1,29.4,30.2,29.3,28.6,28.6,28.8,28.5,25.5,21.5
2001,21.4,25.1,27.6,29.2,30.6,29.4,29,28.6,29.6,28.4,26,22.1
2002,22.6,24.5,27.9,28.7,30.8,29.8,29.2,28.3,29.1,28.1,24.7,22.5
2003,20.9,25,27,29.6,31,30.3,28.6,28.5,28.6,27.9,24.9,21.7
2004,21.2,23.2,27.1,28.6,29.4,28.8,28.2,27.7,28.5,27.4,24.7,22
2005,22.3,25.1,27.7,28.9,30.2,30.6,28.2,28.6,28.9,27.8,24,22.2
2006,21.9,25.6,27.1,28.4,29.2,29.9,28.4,28,28.9,28.2,25.6,22.9
2007,22,24,26.5,29,30.3,30.1,28.8,28.9,28.7,27.8,24.8,22.6
2008,22.1,23.2,27.2,28.5,30.3,28.8,28.2,28.3,28.6,28.1,25.7,23.1
2009,23.2,25.7,27.6,30.1,30,31.2,28.3,29,29.5,27.6,26.1,22.6
