1901,21.4,23.9,26.5,28.9,27.5,27.4,27.2,27,26.4,25.9,23.8,20.9
1902,20.3,23.2,26.5,28,28.1,27.3,27,26.6,26.1,25.4,23.4,21.2
1903,20.9,22.5,26.9,29.3,28.1,26.4,26.9,26,26.1,25.7,22.7,18.4
1904,18.7,21.9,25.7,27.6,27.6,27.2,26.7,26.7,26.7,26.1,22.7,19.4
1905,21.3,23.7,25.9,28.6,27.9,27.3,27,26.7,27,26.1,23.9,22.6
1906,22.2,24,26.3,29.3,28.8,27.6,27.4,26.6,27.3,25.7,23,20.7
1907,20.7,23.1,25.1,28,27.4,26.7,26.5,26.6,26.2,25.8,23.8,19.2
1908,20.6,23,26.1,29,27.7,27.2,26.7,26.5,26.4,25.7,22.4,20.1
1909,20.5,23.2,26.6,28.3,27.2,27,26.7,26.6,26.9,26.4,23.3,19.9
1910,21.2,22.4,25.4,28.4,28,26.6,26.5,26.6,26.2,25.5,23.4,19.4
1911,20.5,22.4,25.8,28.8,27.8,27.2,26.6,26.9,26.7,25.8,24.5,21.2
1912,20.9,23.2,26.2,28.6,28.3,27.4,26.3,26,26.2,25.2,22.4,20.2
1913,21,23.2,25.3,28.2,27.3,27.3,26.1,26.2,26.2,25.4,22.5,19.9
1914,20.1,23.2,26,28.7,27.9,26.8,26.6,25.8,26.1,24.8,23.4,21.1
1915,21.2,24,26.1,28.4,27.1,27.3,26.3,26.4,25.9,26.2,23.2,19
1916,19.6,23.1,26.8,28.6,28.2,27.2,27.2,26.9,26.8,25.4,23.2,19.8
1917,20.3,22.5,25.4,28.2,28.1,26.8,26.9,26.6,26.3,25.4,23.8,19.5
1918,20.1,22,25.6,27.4,27.3,27,27.5,26.7,27.2,26.2,23.9,21.8
1919,21.7,23.6,27.4,28.8,28.3,27.3,26.9,27.3,26.2,25.8,23.8,21
1920,20.2,23,26.5,28.2,27.9,27.3,27.3,26.9,26.8,25.6,23.6,21.2
1921,21.9,22.4,26.5,29.4,27.7,27.6,26.6,26.9,26.4,25,22.9,20.4
1922,22.3,23.4,26.4,28.4,28.4,27.6,26.7,26.8,27.1,25.8,23.1,20.4
1923,21.8,22.2,26.5,27.9,27,26.8,26.2,26.2,26.5,25.3,24.1,21.4
1924,21.9,23.3,27.3,28.4,28.3,27.2,26.2,26.5,26.3,25.3,24,19.4
1925,20.7,22.4,26.2,27.3,27.8,27.5,26.9,26.8,26.7,25,23.4,19.8
1926,22,23,26.1,28.9,28.9,27.6,27.1,26.9,27.1,25.9,23.6,21.7
1927,21.4,23,26.3,27.7,27.1,27.5,27.1,26.8,26.3,25.3,23.5,20.9
1928,23.3,23.5,26.5,28.4,28,26.8,26.9,26.9,26.5,25.1,22.8,21.3
1929,22.8,22.7,25.9,27.9,28.1,26.9,26.9,26.8,26.7,25.9,23.3,21.5
1930,21.1,22.9,25.4,29,27.3,27.4,26.6,26.2,26.4,25.6,24.2,21.7
1931,21.1,23.4,26,29.4,30.4,28.2,27.6,27.4,26.3,25,22.5,21.4
1932,19.9,22.8,25.9,28.5,29.4,27.7,26.9,27.1,26.4,25.6,24.5,19.8
1933,21.4,23,26.4,29.2,27.9,27.1,26.6,25.9,26.3,25.8,22.7,20.3
1934,20.7,23.1,25.6,27.9,28.7,27.3,26.1,26.3,26.4,25.3,23.4,18.2
1935,22.1,23.6,25.9,28.3,28.1,27.1,26.4,25.7,26.5,26.2,24.4,22.3
1936,20.5,21.9,25.5,29,28.3,26.6,26,26.7,25.9,24.6,24.5,23.2
1937,21.8,24,26.5,29.2,27.4,27,26.6,27,26.6,25.9,25.5,22.1
1938,21.8,23.5,25.6,27.6,26.8,26.8,26.1,26.3,26.2,25.2,20.7,20.2
1939,20.8,22,24.3,26.5,27.2,26.4,25.5,25.8,25.4,25.1,23.7,17.7
1940,18.4,21.6,24.4,28,26.7,26.5,25.7,26.3,26.2,25.1,22.3,19.4
1941,21.2,22.3,25.5,29,28.3,27.2,27.2,26.9,26.4,25.6,23.5,22.2
1942,20.9,24.4,26.7,28.4,27.6,26.8,26.9,26.3,26.3,26,23.8,20.8
1943,20.5,22.2,26,27.5,27.8,26.6,26.7,26.2,26.1,25.8,23.3,20.6
1944,21.6,23.7,26.7,28.7,27.4,26.7,26.9,26.7,26.4,26,23.6,20.1
1945,21.5,23,26,28.9,27.3,27.3,27,26.6,26.7,25.1,24.2,20.9
1946,19.7,23,26.5,27.8,27.9,28.1,27.5,26.9,26.4,25.2,23.9,23.1
1947,22.9,23.7,27,28,29.1,27.5,26.8,27.9,27.2,26.2,23.8,21.5
1948,20.8,23,26.4,26.9,27.9,27.8,27,27.1,26.3,25.2,23,22
1949,20.3,22.7,26.2,27.3,27.7,28.1,26.9,26.6,26.5,26.1,24,20.4
1950,20.5,22.4,25.5,27.9,28.5,27.2,26.8,26.8,26.5,25.4,24,19.5
1951,20.5,22.6,25.8,28.5,27.5,26.9,26.8,27.1,26.9,25.7,24.3,21.4
1952,21.4,23.8,24.8,27.3,28.4,26.9,26.5,26.3,25.7,25.7,23.9,19.4
1953,21.2,22.8,25.1,28,27.1,27,26.4,26.2,26.3,26.1,23.9,21.2
1954,21.1,23.1,25.3,28.6,27.1,27.3,27.3,26.6,26.6,24.9,23.4,20.3
1955,19.7,22.3,24.7,27.2,27.9,26.5,26.5,26,26.3,25.4,22.8,18.2
1956,19.5,22.7,25.7,28.5,27.2,26.9,26.5,26.5,26.2,25.3,22.7,20.4
1957,20.9,21.7,25.8,29,29.1,27.3,26.6,26.9,26.5,25.8,24.4,21.5
1958,21.5,22.9,27.5,29.2,29.5,27.7,27,27.1,26.7,26,22.7,18.7
1959,21.2,23,26.1,30,28.6,27.8,26.8,26.5,26,25.3,24.1,23.6
1960,21.6,23,25.6,29.9,28.7,27.8,26.7,26.5,25.8,25.4,24.5,20.3
1961,19.6,22.6,25.4,28,27.5,27.4,26.5,26.7,25.9,25.1,23.2,21.1
1962,20.5,22,25.4,28.3,26.8,27.1,26.8,26.7,26.5,25.1,23.6,20.5
1963,19.1,22.6,25.5,27.7,29.5,26.9,26.1,26.6,26.9,25.3,23.8,20.3
1964,21.4,22.8,26,28.1,27.3,27.1,26.3,26.7,26.3,25.7,22.7,19.7
1965,19.8,23.2,25.1,28.5,29.1,27,27.3,26.5,26.3,25.2,23.1,22.1
1966,22.4,23.9,26.1,29.6,28.8,27.4,27.1,26.3,26.1,25.5,24.2,22.7
1967,21.1,22.4,26,28.4,27.8,27.4,27,26.6,25.9,25.1,23.3,20.4
1968,20.9,21.9,26,27.3,27.2,26.9,27.1,26.9,26.7,25.8,24.2,21.6
1969,20.7,22.5,26.5,29.6,28.7,27.6,26.7,26.1,26.6,25.8,22.6,20.1
1970,21.1,22.9,26.3,27.2,27.2,27.1,26.5,26.2,26.2,25.4,23.5,21.7
1971,19.7,22.1,25.7,27.8,27.5,26.6,25.9,25.9,26.3,24.2,20.9,20.1
1972,19.6,22.4,25.2,26.7,28.2,27.2,27.2,26.4,26.8,26.1,24.1,21.2
1973,20.3,23.5,25.6,28.6,27.6,27.5,26.8,26.3,26.1,25.9,22.5,18.8
1974,18.3,21,25.2,27.7,27.3,26.8,26.9,26.5,26.2,26.1,23.5,20.7
1975,21.6,23.6,26.7,29.4,28.3,27.5,26.8,26.5,26.5,26.5,24,19.5
1976,19.9,22.7,25.2,27.5,26.8,26.3,26.9,25.7,26.8,25.6,21.9,20.5
1977,21.3,21.2,24.2,27.5,24.9,26.1,25.4,25.4,25,24.3,21.1,20.8
1978,19.9,22.8,25.9,29.2,28.2,27.8,27.7,27.5,27.2,26.2,24.8,22
1979,23.4,25.2,27.7,30.2,29.4,28.2,28.5,27.3,27.7,25.9,23.9,21.9
1980,21.6,24,27.8,30.4,29.6,27.8,27.6,26.4,26.6,25.3,24.4,20.9
1981,21.2,23.4,27,28.6,27.5,26.5,26.1,26.5,26.6,26.1,23.9,19.6
1982,20.5,23.2,27.1,27.6,27.9,26.7,26.8,26.6,25.9,25.9,24.4,19.2
1983,20.2,24.5,27.8,31,29.4,27.9,28,27.1,26.6,25.7,22,19.4
1984,20.7,25.5,27.4,29.4,27.8,26.8,26.4,26.5,26.1,24.7,23.7,21.2
1985,22.5,24.4,27.6,29.3,27.9,26.3,26,26.4,26.5,25.6,23.4,20.7
1986,20.9,23.9,25.5,28.4,27.5,27.2,26.4,27,26.3,25.6,23.9,21.4
1987,21.8,23.4,26.5,28.8,28.8,27.3,27.3,26.9,26.8,26.6,25.3,18.5
1988,21.1,24.5,27,27.9,27.8,26.4,26.6,26.8,26.7,25.3,21.7,19.8
1989,21.3,22.7,26.3,28.8,27.6,26.4,26.5,26.7,26.2,25.1,23,18.7
1990,21.4,23.2,26.3,28.7,26.6,27.1,26.3,27.1,26.2,25.8,23.7,20.6
1991,22,24,27.8,29.6,29.6,27.4,27.4,26.9,27.3,26.2,23.3,20.9
1992,20.3,21.9,26.5,29.9,30.2,28.7,26.7,27.1,26.6,24.3,22.1,18.7
1993,20.4,22.4,26.2,27.8,28.3,27.6,28,26.9,26.9,25.9,23.5,21.1
1994,22.7,24.7,26.5,28.9,27.7,26.9,25.5,25.9,26.6,25,21.8,21.8
1995,22.3,22,27.1,29.3,28.5,28.5,27.1,25.8,26.9,25.5,23.7,19.5
1996,20.7,21.9,27.1,28.6,27.1,26.2,26.1,26.1,26.3,24.9,24.2,21.2
1997,20.5,22.3,26,26.7,29.1,28,27.4,27.1,26.3,25.5,24.1,22.6
1998,21.4,23.4,27.6,30,29.6,28.6,27.5,27.9,27.3,26.9,23.3,23.2
1999,22.7,26,26.1,27.9,25.9,27.1,26.3,26.6,25.4,25.7,23.3,19.1
2000,22.7,23.3,25.5,28.5,25.9,26.7,25.9,27.1,25.3,26.1,22.6,21.7
2001,23.1,24.7,26.1,30,26.4,26.4,25.9,26.4,25.9,25.3,21.4,21.7
2002,21.1,23.7,26.1,28.9,27.2,26.6,26.2,25.8,25.3,25.1,23.3,21.9
2003,20.8,23,25.6,28.4,27.6,26,26.7,26.4,26.2,25.8,23.6,20.6
2004,21.1,23.4,27.6,29.8,27.1,26.1,25.5,26.2,25.3,24.8,23.5,19.1
2005,21.4,24.8,26.3,28.7,28.1,26.9,26.7,25.8,25.5,25.4,23.8,20.8
2006,20.9,24.4,27.3,28,26,27,25.8,25.6,26.1,25.2,23.3,20.9
2007,20.7,23.2,26.3,29.1,26,27.1,26.4,26.4,26.3,25.1,22.3,21
2008,23.9,23.9,27.2,29.4,26.8,27.3,27.1,26.8,26.4,26,23.4,20.6
2009,20.9,25.1,26.7,29.1,27.9,27,27.1,27.5,27.4,26.7,24.4,21.5
