1901,19.7,21.3,22,24.2,24.8,25.3,25.1,25.2,24.1,25,23.6,20.5
1902,18.9,20.3,21.8,24.8,25,25.1,24.7,24.6,24.3,24.1,22.2,20
1903,18.5,19.8,21.2,24.6,26,24.8,24.7,24.4,24.5,24.7,22.5,18.6
1904,18,18.8,21.3,23.2,25.1,24.6,24.6,24.9,24.8,24.8,22.5,19.6
1905,18.1,19.5,21.5,23.9,25.5,24.5,25.1,25,25.2,25,23.4,21.3
1906,20.6,20.3,20.8,24.9,26.9,25.1,25.2,24.9,25.5,24.7,22.7,20.4
1907,19.4,19.6,20.7,23.8,24.4,25.1,24.4,24.6,24.9,24.4,22.8,19.1
1908,19,19.3,21.4,24.5,24.7,24.5,24.4,24.4,24.5,24.3,22.1,19.7
1909,19.4,20.1,21.4,24.2,24.9,24.7,24.7,24.5,24.9,25,22.6,19.4
1910,19.2,19.2,20.1,23.3,25,25.1,24.7,24.9,24.3,24.3,22.7,18.8
1911,18.9,19.1,20.8,23.5,25,24.9,24.6,24.9,24.7,24.2,23.3,20.2
1912,18.5,20,21.5,24.4,25.7,25.2,24.5,24.4,24.5,24.3,22.4,19.6
1913,19.1,20.7,21.2,24.1,25.2,25,24.4,24.5,24.5,24.4,22.3,19.5
1914,17.6,19.8,21.1,23.5,25.4,24.5,24.5,24.1,24.7,24.1,23,20.3
1915,19.4,20.2,21.5,23.7,25,25,24.9,24.4,24.8,24.8,23,18.6
1916,17.4,20,21,24.2,24.8,24.3,25.2,25.2,25.3,24.9,23.5,19.8
1917,18.1,19.8,21.1,24,25.3,24.6,24.9,25,24.9,24.8,23.9,19.6
1918,18.2,19.2,21,23.3,24.1,24.6,25.3,24.8,25.5,25,23.1,20.7
1919,20.1,20.5,21.3,24.2,25.8,24.5,25.1,25.7,25.2,25.4,23.8,20.6
1920,18.8,19.3,21.8,23.8,25,24.8,25.5,24.9,25.1,24.7,23,20.2
1921,19.7,19.3,21.6,24.3,24.9,24.7,24.8,25.1,24.7,24.4,22.8,20.2
1922,19.5,19.8,20.9,23.1,25,25.2,24.7,24.9,25,24.9,22.9,19.8
1923,19.5,18.6,21.1,23.2,24.6,25,23.8,24.5,24.2,24.2,23,20.6
1924,19.7,19.3,22.1,23.8,25.5,24.9,24,24.5,24.3,24.2,23.3,18.8
1925,18.9,19.5,21.2,22.7,24.9,25,25.1,24.7,25.2,24.2,23,20
1926,19.8,19.8,21.6,24.4,26.7,24.8,25.4,25.2,25.2,25,23.2,20.7
1927,19.2,19.9,21,23.4,24.4,25,25.3,25,25.2,24.7,23,20.3
1928,20.7,20.6,21.1,23.3,24.9,24.5,25.2,25,25.3,24.6,23,21.1
1929,20.5,19.8,21.3,23.8,25.2,24.3,25.5,25,25.5,24.7,22.9,20.5
1930,19.1,19.3,21,23.9,25.2,24.8,24.5,24.6,24.5,24.9,23.3,20.2
1931,20,19.8,21.1,24.6,25.7,25.4,25.3,25.2,24.7,24.3,22.3,20.3
1932,19.1,19.3,21.2,23.6,26.1,24.9,24.8,24.7,24.6,24.5,23.3,19.2
1933,19.9,19.5,21.2,23.6,25.6,24.4,24.5,24.5,24.5,24.5,22.3,19.6
1934,19.5,19.6,21.1,22.9,25.8,24.8,24.6,24.4,24.8,24.4,22.5,18.1
1935,19.1,19.7,21.5,23.8,25,24.9,24.5,24.2,24.5,24.9,22.7,20.6
1936,19.1,18.8,21.2,23.6,25.6,24.3,24.1,24.6,24.7,24.2,22.9,21.2
1937,19.2,20.7,20.4,24.7,25,25.2,24.7,25,25.1,24.5,23.9,21
1938,20.4,20.1,21.3,24.4,24.4,24.7,24.6,24.6,24.8,24.6,21.1,19.5
1939,20.3,19.3,22.1,24,24.5,24.8,24.2,24.4,24.3,24.3,23,17.3
1940,17.2,18.3,20,23.2,24.8,24.8,24.4,24.3,24.3,23.9,22.4,19.2
1941,19.4,18.8,20.6,24.6,25.6,25.6,25.4,25.3,25.1,24.7,23.4,21.5
1942,19.4,19.3,21.2,23.7,25.5,24.8,24.4,24.1,23.7,23.7,22.5,19.6
1943,17.9,18.8,20.3,22.4,24.4,23.7,23.7,23.9,23.7,24.1,22.3,19.6
1944,19.4,19.7,20.5,23,25,24.6,23.8,24.1,24.5,24.2,22,18.6
1945,18,19.1,20.6,22.8,24.4,24.4,24.3,24.4,24,23.3,22.7,20.4
1946,17.5,21,22,23.3,26,25.5,24.9,24.6,24.6,24.6,23,21.4
1947,20.5,19.9,22.2,24.7,26.1,25.2,24.9,24.2,25.1,24.7,22.7,20.3
1948,19.2,18.4,21.7,23.7,25.3,25,24.7,24.8,24.6,24.3,22.6,19.5
1949,18.2,19.1,20.3,23.3,24.6,24.7,24.4,24.8,24.6,25,23.6,19.2
1950,16.6,18.6,20,23.2,25.5,24.8,24.7,25.2,25,25.3,23.2,19.5
1951,17.6,17.8,20.5,22.4,26,24.5,24.2,25,24.7,24.8,23,21.4
1952,19.6,20.9,21.2,23.4,25.7,24.7,24.4,24.1,24.4,25,23.5,19.6
1953,19.7,20.8,20.4,23.8,25.8,25.1,23.8,24.3,24.3,24.7,23.6,20.8
1954,17.8,19.6,20.3,22.9,24.9,25.4,24.3,24.5,24.7,24.3,21.8,20.1
1955,17.8,18.6,19.8,23.9,25.3,24.3,24.1,23.8,24.2,23.8,22,17.4
1956,16,19.1,19.7,23.8,24.8,24.7,23.8,24.2,24.3,23.8,22.2,19.4
1957,17.4,18.4,20.5,23.3,26.6,25.4,24.2,24.4,24.6,24.2,22.9,19.9
1958,18.6,19.5,21.2,23.7,26.2,25.2,24.6,24.3,24.6,24.6,21.5,18
1959,18.5,18.5,20.1,24.3,25.6,25.2,23.9,24.5,24.3,23.7,22.4,21.2
1960,19.3,20.1,20.3,22.7,24.1,25,24.3,24.9,24.2,24.3,23.6,20.4
1961,20.1,20.3,20.3,23.8,25.3,25.1,24.1,24.4,24.4,23.9,22.5,19.4
1962,19.7,19.6,20.2,23.9,25.1,24.7,24.5,24.1,24.5,24.1,22.4,19.5
1963,17.9,19.4,20.4,22.9,25.1,24.6,24.3,24.2,24.6,24.2,22.9,20
1964,19.5,19.6,21.7,23.6,24.6,24.3,23.7,24.3,24.4,24.3,22.1,18.9
1965,18.3,19.3,19.9,23.2,25.6,24.9,24.2,23.7,24,24,22.3,21.2
1966,20.6,20.3,20.8,23.5,26.1,25,24.4,24.4,24,23.8,22.8,20.6
1967,19.5,19,20.9,24,24.9,24.7,24.2,24.4,24.2,23.8,22.4,19.9
1968,18.4,18.3,21.4,23.1,24.7,24.5,24.4,24.8,24.4,24.5,23.1,20.4
1969,18.4,18.4,21.1,24.8,25.4,25.3,24.6,24,24.3,24.2,22.1,19.6
1970,18.7,19.2,21,24.2,24.6,24.5,24.3,24.2,24.5,24.2,22.7,21.2
1971,18.5,18.9,21.9,23.3,24.7,23.9,23.7,23.6,23.9,23,20.1,19.3
1972,17.6,18.3,20.6,23.1,24.9,24.1,24.6,24,24.4,24.1,23.1,21
1973,18.2,19.7,21.4,23.9,24.3,24.8,24.2,24.3,24,23.9,22.8,18.4
1974,15.3,18.1,21.1,23.9,24.9,24.5,23.8,24.1,24.6,24.7,23.2,18.9
1975,20.6,20.2,21.6,21.6,23.1,24,23.7,24.3,23.8,24.1,21.7,18.2
1976,17.8,18.2,20.6,21.8,23.6,24.1,24,23.2,24.3,24.2,21.9,19.3
1977,18.7,19.1,23,24.4,24.9,24.6,23.3,23,23.5,23.2,21.1,19.9
1978,19.3,19.9,20.3,24.2,25.4,24.3,23.8,24.7,24.7,24.2,22.5,20
1979,19.4,20,21.4,24.7,25.8,25.5,24.8,25,24.9,24.4,22.3,19.8
1980,17.5,19.3,22.2,25.2,26,24.6,24.7,24,25.3,24.2,23.2,20.2
1981,19.3,19.3,21.4,24.2,25.9,25.3,24.1,24.4,24.2,24.9,23.8,19.9
1982,19.1,19.1,21.7,24.8,25.7,24.5,24.3,24.3,24.1,24.2,22.8,18.7
1983,18.2,20.3,21.8,24.6,26.3,24.6,24.5,24.4,24.3,24.4,22.2,18.9
1984,18.8,21.9,22,24.6,25.3,24.4,23.7,24.5,24,24.2,22.7,19.8
1985,19.9,19.9,21.2,24.6,24.7,24.2,23.5,24.2,24,24.2,22.8,20.5
1986,18.6,20.1,21.1,24.9,25.2,24.8,24,24.1,23.7,23.6,22.3,19.8
1987,19.6,19.5,21.4,24.8,26.2,25.3,25.2,24.1,24.9,24.8,24.3,18.5
1988,18.6,20.5,21.4,23.5,25.8,24.9,23.9,24.1,23.7,24,21.7,19.1
1989,18.9,17.6,21.2,23.1,24.9,23.8,23.4,23.5,23.7,23.4,21.5,17.4
1990,18.3,20.4,21.6,24.5,25.2,24.7,24.8,24.7,24.6,24.6,23.2,20.2
1991,18.2,20,21.8,24.3,26.2,24.8,25,24.5,24.7,24.4,22.4,20.1
1992,17.9,18.6,20.7,24.6,25.2,24.6,24.2,24.6,24.5,23.9,21.8,18.8
1993,18.4,18.8,22.4,24.1,25.5,25.3,24.7,24.7,24.3,24.5,22.1,19.6
1994,18.6,20.6,21.5,23.8,25.3,24.2,23.6,24.2,24.5,23.5,21.4,20
1995,18.9,18.9,21.8,24.3,25.3,24.4,24.5,23.9,24.6,24.3,22.9,19
1996,19.8,19.8,21.6,24,24.5,24.5,23.9,23.9,24.3,23.7,23.1,20
1997,17.1,17.8,20.9,22.5,24.9,24.3,24.4,24.6,24.1,24.1,23.3,20.7
1998,18.3,19.1,20.8,23.9,26.3,25.2,24.5,24.6,24.4,24.2,22.2,20.9
1999,19.9,22.3,21.9,23.9,24.2,24.3,23.8,24.1,23.7,24,22.6,18.9
2000,19.1,20.2,21.5,24.6,25,24.4,24,24.4,23.9,24.4,22,20.2
2001,20.3,20.4,21.9,25,24.8,24.5,24.2,24.4,24.3,24.4,21.7,20.8
2002,19.2,20.4,21.6,24.3,24.8,24.2,24.4,24,23.9,24.1,23.1,21.3
2003,18.8,20.2,21.4,24,24.1,24.7,24.3,24.6,24.6,24.4,22.8,20.1
2004,19,20.3,21,24.5,24,24.7,24,24.3,24,24,22.8,19.1
2005,18.5,20.9,21.7,24,24.8,24.8,24.3,24.3,24.2,24.1,23.1,20.8
2006,19,21.5,22.4,23.6,24.3,24.7,24.5,24.1,24.1,24.2,22.7,20.2
2007,19.1,19.8,21.3,24.8,24.3,25.1,24.5,24.5,24.4,24.1,22.4,20.1
2008,20.9,21,22.7,24.8,24.9,24.9,24.6,24.5,24.6,25,23.3,20.7
2009,19.7,21,22.7,25.3,25.9,25.2,25.2,25.1,25.3,25.4,23.9,21.1
