1901,19.3,19.9,21,24,24.6,24.6,24.5,24.3,23.5,22.8,21.5,19.7
1902,19.3,20.5,21.8,24.3,25.1,25,24.7,24.6,23.5,22.8,22,20.9
1903,19.2,20,22.1,24.7,24.6,24.5,24.4,24.1,22.9,22.4,20.4,18
1904,17.7,20.1,20.6,23.5,24.2,24.4,24.3,24.5,23.7,22.9,21,18.9
1905,20.6,20.3,20.3,23.9,24.8,24.7,24.7,24.8,23.7,22.9,21.8,22.1
1906,19.9,21.5,20.9,24.5,25.2,25.3,25,25.2,24.1,22.5,20.7,20.2
1907,19.3,20.4,20.6,23.5,24.2,24.3,24.6,24.4,23.7,23.2,22,18.8
1908,19.4,20.1,20.3,23.5,24.3,24.5,24.5,24.5,23.7,22.9,21,19.9
1909,19.2,20.7,20.9,23.9,24,24.9,24.4,24.8,24,23.2,21.2,19.5
1910,19.8,20.1,20.4,23.6,24.9,24.7,24.6,24.7,23.1,22.5,21.3,18.5
1911,18.5,19.9,20.9,23.9,24.5,24.8,24.6,25,23.9,22.7,22.4,21
1912,19.1,20.6,22,24.2,26,25.5,24.4,24.1,23.3,22.4,20.3,19.5
1913,18.4,20.5,21,24.5,23.9,24.4,24,24.1,23.4,22.4,20.7,19.5
1914,18.3,20.7,21.4,24.6,25.7,24.7,24.2,24.3,23.2,22.4,21.6,20.5
1915,19,21.5,21.4,24.6,24.6,25,24.7,24.9,23.3,22.6,20.7,18.2
1916,17.8,19.9,21,24,24.6,24.1,24.6,24.5,23,22,19.9,18.7
1917,18.4,20,19.9,24.2,24.6,24.2,24,24,23.1,21.9,20.4,18.6
1918,17.1,18.8,20.1,23.1,24.1,24.5,24.9,24.2,23.6,22.8,21.8,20.9
1919,19.5,20.5,22,24.4,24.8,24.4,24.3,24.3,23.2,22.3,20.8,19.9
1920,17.5,20.2,21,23.8,24.9,24.6,24.3,24.8,23.5,22.1,21.7,20.3
1921,18.2,19.8,21,23.7,24.2,24.5,23.8,24.2,22.8,22.2,20.3,19.6
1922,19.2,20.7,20.2,24,24.9,24.6,23.8,24.3,23.7,22.3,20.4,19
1923,18.3,19.2,20.4,23.1,23.7,23.9,23.6,23.6,23.1,22.1,21.5,20.2
1924,19.3,20.4,20.9,23.4,24.9,24.4,23.6,24.3,24.2,22.6,21.6,18.2
1925,18.8,19.3,20.7,22.5,24.6,24.3,24.3,24.4,23.5,22,21.4,18.6
1926,19,20.5,20.7,24.4,25.3,24.6,24.5,24.1,23.5,22.1,21.1,19.9
1927,18.7,20.3,21.1,23,23.9,24.3,24.1,24.1,23.3,22.1,21.5,20.1
1928,20.9,19.8,22.1,23.7,24.9,24.5,24.7,24.7,23.2,21.3,20.7,21.2
1929,20.5,20.7,20.5,23.5,26,25.2,24.2,24.2,23.4,22.7,20.8,21.1
1930,17.1,20.3,20,25.1,25,25.2,24.2,24.4,23.1,22.6,21.9,20.7
1931,20.2,21.4,22.2,25.7,25.5,25.4,24.8,24.4,23.3,21,20.8,20.1
1932,18.4,19.5,19.8,24.2,25.7,25.2,24.1,24.6,22.7,22.1,21.3,19.3
1933,17.1,21.5,20.5,24.6,25.2,25.5,24.3,24.7,23.5,22.2,20.2,20.2
1934,17.5,19.3,20,22.8,24.8,25,23.9,24.3,23.5,21.1,21.6,19.6
1935,20,21.5,22.1,24.6,24.5,25.3,24.5,24.5,22.9,22.9,22.2,19.6
1936,18.3,20.6,19.2,24.8,24.8,25,24.5,24.1,23.4,21.5,21.5,21
1937,19.9,20.9,22.8,24.8,24.7,24.6,24.2,24.3,23.1,22.3,21,20.5
1938,19.6,20.3,19.9,23.4,24.4,24.8,24.1,24,23.2,22.3,21,20.4
1939,18.9,20.8,21.4,23.5,24.1,24.6,24.6,24.3,23.4,22.6,22,17.4
1940,18,20.6,21.2,23.4,24.8,25,24.9,23.9,23.8,23.1,22.1,21.3
1941,22.4,22.4,21.6,24.5,25.3,24.8,25,24.7,23.6,22.7,21.9,20.7
1942,19,20.9,21.9,24.3,24.7,24.9,24.4,24.2,23,22.3,21.4,20.1
1943,18.5,20.5,21.5,23.4,24.9,24.9,24.7,24.4,23.9,23.1,21.4,19.6
1944,20,20.7,21.4,24.5,24.5,24.7,24.7,24.4,23.8,22.9,21.8,18.2
1945,18.7,19.3,20.5,23.4,23.8,24.5,24.6,24.6,23.4,21.7,22.3,20.1
1946,18.5,20.1,21.9,24,24.4,25.1,23.9,24,23.3,22.2,21.7,20.3
1947,21.8,20.4,20.7,22.6,24.8,24.5,24.3,24.5,23.5,22.1,20.7,19.7
1948,19.1,21.7,21.3,23.3,24.6,24.5,24.3,24.4,23.9,23.3,20.2,21.3
1949,18.4,20.9,21.8,24,25.4,25.2,25,24.7,23.7,22.9,21.4,20.9
1950,20.5,20.4,21.9,23.5,24.6,24.4,24.5,24.6,23.4,22.7,21.6,18.7
1951,18.9,20.9,20.5,24,24.3,24.3,24.5,24.6,24,23,22,20.1
1952,19.6,21.8,22.3,24.1,25.4,25,24.8,24.4,23.5,22.6,21.6,18.6
1953,19.5,20.8,22,23.3,24.7,24.7,24.8,24.8,23.6,23.7,21.7,19.9
1954,21.3,20.9,19.7,24.5,24.9,25.2,25.3,24.9,23.3,22.5,21.2,19.3
1955,17.5,21.4,21.9,23.4,24.9,24.5,24.6,24.6,23.9,22.7,20.5,19.5
1956,17.7,21.2,21.8,24.1,24.5,24.5,24.6,24.3,23.7,22.5,20.3,18.7
1957,19,19.3,20.3,23.8,25.1,24.7,24.5,24.5,23.5,22.3,21.9,21.1
1958,19.6,19.9,22.5,25,25.7,24.7,24.5,24.3,23.3,21.9,20.3,19.5
1959,18.9,21.7,19.9,24.2,24.8,25.8,24.5,24.4,23.3,22.2,21.9,21.3
1960,19.4,20.2,22.4,23.9,24.6,24.5,24.5,24.6,23.4,22.5,22,19.5
1961,18.2,20.4,21.8,23.9,24.2,24.5,24.5,24.6,23.3,22.5,21.7,20.9
1962,17.5,19.6,20.6,23.5,24.6,24.5,24.6,24.7,23.5,22.9,21.2,19.4
1963,15.7,19.3,20.2,24.1,25.2,24.4,24.4,24.6,23.8,23,22.7,19.9
1964,20.2,19.7,21,24.6,23.6,24.5,25.2,24.4,23.5,23,20.3,18.9
1965,18,21.5,20.5,23.7,24.4,24.2,24.2,24.7,22.4,23.3,22.3,21.1
1966,21,21.9,22.1,23.7,23.5,24.8,24.6,24.3,22.9,23.4,21.6,21.4
1967,17.8,19.3,21.1,23.6,24.7,24.8,24,24.4,22.8,21.6,21.7,18.4
1968,19.1,18.5,20.6,23.2,24.5,24.4,25,24.3,23.3,22.1,21.9,21.6
1969,20.9,20.3,21.1,24.3,25.1,24.7,24.2,24.9,23.9,23.1,20.4,18.6
1970,18.6,20.7,21,23,24.4,24.9,24.3,23.5,22.9,21.4,20.7,20.5
1971,17.3,19.1,19.8,23.5,25.5,24,24.4,24.5,23.9,21.7,19.8,19.9
1972,17.6,20.4,20.1,21.9,24.8,24.5,23.9,23.6,23.4,23.7,22.3,20.7
1973,19.4,22.2,22.6,25.2,25.3,25.2,24.8,25,23.9,22.3,20.5,19
1974,18.4,19,19.6,23.2,24.6,24.5,25.1,24.4,24.1,22.3,20.9,19.7
1975,19.2,21,21.6,24,24.8,24.2,24.9,24.3,23.9,22.4,20.7,17.7
1976,17.9,21,20.4,24,24.6,24.4,24.5,24.6,23.1,22.7,19.8,19.9
1977,18.7,18.6,20.6,23.7,24.9,25.9,24.6,24.6,23,22.9,21.5,21.1
1978,20.3,20.7,22,23.2,24,24.7,24.3,23.8,22.7,21.6,21.5,20.8
1979,21.2,22.3,22.6,23.7,23.6,24.6,24.8,24.4,23.5,21.7,21.2,20.8
1980,20.3,20.4,22.8,24.4,24.6,24.7,24.7,24.7,23,22.7,21.7,20.4
1981,18.7,21.4,21.7,23.9,24.3,24,24.1,25,24.8,22.7,21.5,18.7
1982,19,20.9,21.7,22.7,24.4,24.2,24.5,24.3,23,23.2,22.7,18.8
1983,18.6,20.9,20.7,25.9,26.3,25,25.8,25.3,24.8,23,20.7,19.4
1984,17.5,19.6,20.4,24.8,24.2,24.2,24.5,24.1,23,22.4,21.6,19.9
1985,19,21.5,20,22.3,24.2,24.3,24,24.3,22.8,22.6,22.5,20.1
1986,18.5,20.7,20.5,23.9,24.1,24.6,24.4,24.6,23.6,22.8,21.2,20.2
1987,19.8,21.6,22.5,24.1,24.9,25.1,25,25.2,23.8,24.2,22.4,18.5
1988,20.7,21.4,20.7,22.8,24.9,24.7,25,24.5,24.1,21.7,20.3,19.7
1989,20.1,20.3,20.3,24.5,24.6,24.5,25,24.9,24.2,22.9,21.7,20.2
1990,20.3,21.3,20.5,24.4,23.9,24.8,24.8,25.3,23.9,22.8,22.1,21.1
1991,21.2,21.7,22.6,25.4,25.5,25.1,24.9,24.5,24.1,22.5,21.5,21
1992,18.9,20.7,22.2,25.7,25.9,25.2,24.9,24.6,24,22,21.3,21.3
1993,19,21.2,21.6,24.1,25.3,25.6,24.7,24.8,24,23,22,20
1994,20.4,22.1,20.6,25.1,25.7,24.8,24.7,24.9,23.9,22.7,22.4,22.3
1995,19.8,20.3,21.2,25.6,25.4,25.6,25.1,25.5,24.2,23.3,21.5,20.1
1996,20.2,19.3,21.5,23.1,24,25.2,25.2,25.2,23.7,23.2,22.3,19.9
1997,19.6,20.2,21.3,23.4,24.8,25.1,24.9,24.8,24.1,24.3,23.2,22.2
1998,21.6,22.4,22.9,24.9,25.7,25.8,25.4,25.4,24.5,23.8,22.7,20.8
1999,19.8,21.4,21.9,24,24,24.6,24.9,25.4,24.4,23.7,21.8,18.6
2000,20.4,20.3,21.3,24,24.5,24.5,24.9,25.5,24.2,23.2,21.4,21.6
2001,21.4,21.4,21.1,25.7,25.1,24.7,25,25.2,24.7,24,20.9,20.7
2002,20,21.9,22.1,24.8,24.8,25.3,25.2,24.7,23.5,23.3,22.6,22.1
2003,19.7,22,21.5,25.3,25.5,25.2,25.2,25.3,24,23.7,22.8,20.4
2004,20.6,20.3,21.7,24.4,25.6,24.8,25,25.2,24.2,23.2,22.7,21
2005,20.2,22.6,20.6,24.7,24.7,25.5,25.2,25.1,25.1,21.4,23,20.2
2006,20.3,22,21.2,24.4,24.9,25.3,25.5,24.9,24.3,23.6,22.9,21.5
2007,19.6,22,22.3,23.9,24.1,23.9,25.1,24,24,22.9,20.7,21.7
2008,19.5,18.2,20.7,24.5,23.8,24.4,25.4,24.7,24.2,24,21.7,20.3
2009,18.2,22.8,21.4,24,24.5,24.9,24.9,25.5,24.2,23.8,21.7,21.5
