1901,20,20.6,21.8,24.4,26.3,26.2,25.3,24.9,25.7,24.1,21.7,19
1902,19.1,20,21.9,24.5,26.9,26.8,25,25.5,24.8,24.1,21.7,19.5
1903,19.3,20.5,22.1,24.2,25.4,25.7,24.6,25,24.7,23.8,20.9,18.7
1904,18.8,19.3,21.3,24.6,25.3,25.6,25.2,25.3,25.1,23.8,21.6,18.9
1905,18.7,19.9,22,23.8,25.4,26.6,26,24.9,24.8,23.9,21.9,18.9
1906,19.9,21,21.1,24.8,27.3,25.2,25.2,24.6,25.4,24.2,21.7,19.9
1907,19.1,20.3,21.6,23.5,26.2,25.4,25,24.4,25.4,24.1,22.1,19
1908,18.2,20,21.5,24.7,26.5,26.9,25.4,24.6,24.2,24,21,18.5
1909,19.2,20.4,21.5,23.3,25.8,25,23.7,24.3,24.6,24.6,22.7,19.9
1910,19.4,20,21.5,24.3,26.4,24.8,24.5,25.4,25.4,24.3,20.4,18.3
1911,19.5,19.5,21.6,24.2,26.3,25.5,25.5,25.2,25.2,24,22,19.2
1912,18.8,21,22.8,24.2,26.7,27,24.7,24.5,24.9,24.1,21.2,18.3
1913,18.4,20.6,22,24.5,26.2,25.5,24.7,25.8,25.7,23.5,21.5,19.4
1914,18.6,20.5,22,23.5,25.9,25.4,25,24.4,24.1,24,21.9,19.9
1915,19,20.3,21.8,24.3,26.8,25.9,25.4,25,24.7,24.5,22.3,18.8
1916,19,21,21.7,24.6,26.5,24.9,24,25.1,25.2,23.5,21.5,18.6
1917,18.7,20.2,21.2,24.3,26.3,24.4,25.2,24.8,24,23.5,21.2,18.7
1918,18.7,19.4,21.4,24,25.4,25.1,25.9,25.3,25.9,24.5,22.1,19.8
1919,20,21.4,22.5,25,26.9,25.4,25.3,26.2,25.3,24,21.8,19.7
1920,19.3,21,22.8,24.9,26.6,26.2,27,26.1,26.1,24.4,22.3,18.9
1921,19.5,20.2,22.4,24.4,28,26.9,25.4,25.5,25.3,23.4,20.8,19.2
1922,19,20.5,22.8,25.1,26.9,26.8,25.9,26.4,25.6,23.8,21.9,18.6
1923,18.4,20.1,21.4,24.9,26.6,27.8,25.9,26.5,24.8,23.9,21.6,19.5
1924,18.8,21.1,22.3,25.8,26.8,26.8,25.8,25.5,24.5,24.6,21.4,18.8
1925,18.8,20.1,22,24.3,26,25.7,25.2,25.2,25.4,23.5,21.8,18.8
1926,19.2,20.3,22.2,24.6,26.6,27.8,25.4,25.2,25.1,24,21.1,19
1927,19.6,20.5,22.7,25.1,27.1,25.8,25.5,25.4,25.3,24.4,21.2,19.3
1928,18.6,20.6,21.8,24.4,27.4,26.5,24.9,25.8,25.2,23.8,21.9,19.7
1929,19.6,19.9,21.7,24.9,27,25.9,26.3,25.5,25.1,23.7,21.2,19.5
1930,18.8,19.3,21.4,25.1,25.6,25.4,26,25.4,24.9,23.3,20.8,19.1
1931,18.5,19.8,21.5,24.7,26.4,26.4,24.6,25.7,25,23.8,21.1,19.6
1932,18.1,19.7,20.6,23.8,25.3,26.1,25,25,25.4,24.2,22,18.9
1933,18.8,20.1,21,24,25.5,25.5,25.4,24.7,25.3,23.5,21.4,18.9
1934,18.3,19.6,21.3,24.4,26.7,25.9,24.8,24.7,25.2,23.5,20.4,18.6
1935,18.5,19.9,21.4,24.1,27,25.9,25.5,25.2,25,24.2,21,19.3
1936,20,20,21.4,24.4,26,24.8,25.6,24.9,25.2,23.9,22,19.7
1937,18.6,20.5,21.7,23.2,26.4,26.5,25.2,25.3,25.3,23.4,21.5,18.3
1938,19.4,20.6,22.4,24.3,27.1,24.6,24.8,25.2,24.7,24,20.5,18.1
1939,18.3,19.2,21.1,24.1,26.8,26.8,25.3,25.8,25.7,23.9,21,19
1940,17.3,20,21.8,24.1,26.6,25.7,25,25.1,25.3,23.9,22.3,19.7
1941,19.7,20.6,22.6,25.8,27.1,25.7,26.4,26.7,25.4,24.2,21.1,20
1942,19,20.1,21.8,24.6,27.6,26.7,26.1,25.7,25.3,24.1,21.5,19.8
1943,19.4,19.2,22,24.2,26.1,25.6,25.9,25.8,25.4,23.8,22,19.2
1944,19,20.8,21.4,24.1,26.7,26.7,24.8,25.7,25.2,24.4,21.8,19.3
1945,18.8,20.6,22.2,24.3,27.5,27.5,25,25.7,25,23.9,21.2,18.4
1946,17.6,19.5,22.5,24.5,27.3,25.9,25.4,25.3,25.4,24.3,22.5,20
1947,19.6,19.9,22.4,26,26.9,27.1,24.6,24.9,25,23.8,21.3,19.2
1948,19.4,21.2,22.2,25,27.4,27.2,25.5,25.5,25.4,24.4,22.2,18.7
1949,18.7,20.3,22.3,24.8,26.2,26,24.6,25.4,24.9,24.4,21.1,18.9
1950,18.5,20.4,21.7,24.5,26.7,26.3,24.9,25.9,25,24.1,20.9,18.4
1951,18.7,20.2,22.9,25.6,27.2,26.5,25.8,25.7,25.8,25.4,22.4,19.3
1952,18.9,20.8,22.8,25.9,27.2,27.4,26.3,26.1,25.7,23.9,21.7,20.1
1953,19.3,20.6,23.7,26.2,28.6,26.8,26,25.5,25.3,24.6,21.8,19.1
1954,19,21.6,23.1,26.7,28,27.2,24.8,25.5,25.1,23.4,20.3,19.3
1955,19.1,20.9,23,25.5,26.1,26.8,26.1,24.7,25,23.8,20.6,18.9
1956,19,19.3,23.1,25.9,27.7,26.2,24.6,25.4,25.3,23.5,21.8,19
1957,19.5,20.3,22.4,25.3,27.2,27.2,25.7,24.8,25.9,24.9,22,20
1958,19.6,21.3,23.4,26.1,28.3,28.5,25.6,25.2,25.7,24.2,22.5,20.1
1959,19.7,21.6,22.8,25.7,27.9,26.4,24.9,24.8,25.6,24.5,21.4,18.7
1960,19.4,19.6,22.5,25.6,27.8,27,25.4,26.8,25.3,24.3,21.8,19.8
1961,19.4,20.7,23.4,26.1,27.9,26,24.6,25.4,25.1,23.7,21.2,17.9
1962,17.6,19.5,22.5,25.4,27.3,26.4,25.2,25,25.1,23.2,21,19.4
1963,17.8,19.3,22.6,24.7,27.2,26.6,25.3,25,26,24.3,22.3,19.7
1964,19.4,21.1,23.3,25.9,28,26.4,25.4,24.5,24.4,24.2,21.4,18.7
1965,19.2,20.8,22.3,24.9,27.1,27.9,25.9,25.6,25.5,24.5,22.1,20.3
1966,19.5,20.7,23.1,26,28.3,26.8,25.8,25.8,25.3,23.8,22.8,18.9
1967,19.1,20.5,22,25.4,27.5,26.7,25.5,25.3,25.8,24,21,20.5
1968,18.8,21.4,23.1,24.9,27.1,27.1,26.1,27.2,25.4,23.7,21.7,19.5
1969,19.1,21.1,23.7,26.2,25.9,26.8,25.1,25.6,25.8,23.9,22.2,19.1
1970,19.3,21.6,23.3,26,27.4,25.5,25.3,24.7,25.6,23.7,21.4,17.3
1971,18.9,21.5,22.3,24.1,25.9,25.1,25.8,25.2,25.1,23.6,20.7,18.2
1972,17.3,20.5,22.5,25.9,28.4,28.1,27,26.8,26.3,24.1,22.5,20.9
1973,20.3,22,23.5,26.7,28.5,27.9,26.3,25.7,26.5,24.3,21.8,19.5
1974,18.5,20.8,23.8,26.3,28,27.1,26.5,26,25.4,24.4,21.8,18.6
1975,18.4,21.4,23.6,26,28.6,26.4,25.3,25.7,24.5,24.3,20.8,17.9
1976,18.1,20.1,23.1,25.7,27.8,26.9,24.7,24.9,25.6,24.3,22.4,19.3
1977,18.6,20.8,23,25.9,27.1,26.5,25.9,25.6,26.1,24.2,23.4,19.7
1978,19.5,21,23.1,25.9,29,27.1,25.4,25,25.9,25.2,23.1,20.3
1979,19.9,22,23.1,26.4,27.4,26.9,27.4,26.9,25.7,25.2,23.3,20.9
1980,20.6,22.1,24.1,26.3,28.4,26.5,26,25.5,25.8,24.7,22.1,20.3
1981,19.5,21.3,23.1,26.3,27.8,27.6,26.2,25.4,25.5,25,22.2,20.2
1982,20,22.1,23.7,26.2,27.5,27.3,26.5,25.7,25.6,24.5,23,20
1983,19.5,22.7,24.2,26.2,27.8,27.6,26,25.9,25.1,24.7,22.3,20
1984,20.3,20.9,22.9,26.3,28,27.7,25.4,26.5,25.8,24.5,21.4,20.4
1985,20,21.5,23.8,26.8,28.4,27,25.2,25.8,25.5,23.8,21.5,19.7
1986,18.9,20.9,23,25.5,27.8,26.5,26.5,25.7,26.2,24.5,22.2,20.4
1987,19.7,20,22.4,25.9,26.7,28.3,27.1,26,26.8,24.7,22.3,20.6
1988,19.8,21.5,24.1,25.7,27.9,28.1,25.2,25.3,25.4,24.5,22.1,20.3
1989,19.2,20.9,22.7,25.8,27.8,26.5,25.3,25.6,25.3,24.8,22,19.3
1990,19.6,21.5,23.4,25.7,25.7,26.3,25.8,25.7,26,24.2,23,20.5
1991,20.3,21.8,23.6,26.4,27.5,25.7,26,26.2,25.9,24.2,21,18.8
1992,17.9,21.3,22.9,25.5,27.2,27.2,26.2,25.5,25.7,24.9,22.3,18.6
1993,19.8,20.5,23.4,25.7,27.1,27.4,26.4,26.3,26,24.7,22,19.1
1994,19.6,21.3,23.7,26.3,28.1,27.2,25.8,25.3,26,24.2,21.4,18.9
1995,18.9,21.1,23.7,25.8,26.1,27.5,25.5,26.1,25.7,24.2,22.7,19.7
1996,19.6,20.9,23.5,25.6,28.3,26,25.9,25.4,25.7,24.4,22.6,19.3
1997,18.7,20.9,23.2,24.9,27.7,28.3,27.2,26.5,25.9,24.5,23.5,21.6
1998,20.8,22,24,26.1,28.6,28,26.1,25.9,26.1,25.1,23.7,19.4
1999,19.3,21.9,24.4,27.2,27.6,27,26.7,26.4,26.2,25,22.5,19.7
2000,19.6,22,23.3,27.1,29,26.4,26.1,25.5,26.4,25.5,22.6,19.2
2001,19.6,22,24.2,26.2,29.2,27.1,27.5,26,26.9,25.2,23.2,20
2002,20.4,21.3,24.2,26.5,29.3,26.8,27.4,26.1,27,25.1,22,20.2
2003,19.4,22,24.2,27.1,29,28.1,25.8,26.1,26.5,24.9,22.4,19.9
2004,19.4,20.8,24.1,27.1,27.6,26.6,26.1,26.6,26.5,24.7,22.4,20
2005,20.7,22.2,24.7,27.1,28.1,27.5,26.4,26.5,25.9,25.2,22,20.2
2006,20.1,22,24,26.3,27.4,27.4,27,26.3,26.2,25.2,22.8,20.9
2007,20.1,21.4,23.7,26.4,29.3,26.9,27.6,26.2,25.9,24.5,22.8,21.3
2008,20.2,21.7,23.4,25.9,29.3,26.8,26.3,25.6,26.1,25.2,23.2,21.2
2009,20.6,22.7,23.9,26.9,27.4,28.2,27,27.4,27,25.3,23.9,20.7
