1901,18.4,19.9,21.3,22.9,24.5,23.8,23.3,23.6,23.4,22.6,19.7,18.1
1902,18.6,19.7,20,21.8,22.4,23.5,23.4,23.4,22.7,23.5,20.9,17.4
1903,17.4,19.7,21.8,22.2,23.6,23.3,23.8,23.1,22.8,23.1,21.6,18
1904,17.9,19.5,20.3,22,22.9,22.8,22.9,22.4,22.5,22.4,21.1,18.1
1905,18.1,19.2,20.7,21.6,22.8,23,23.2,22.9,23.2,22.8,20.4,18.8
1906,19.1,19.7,21.7,22,23.1,23.7,22.7,22.5,22.4,22.6,20.8,18.2
1907,18,18.9,20.9,21.4,21.9,22.4,22.2,22,22.1,22.1,19.9,17.4
1908,17.8,18.3,20.3,21.9,22.6,23.3,23.2,22.9,22.7,22.2,20.9,18.7
1909,17.7,18.4,20.9,21.3,22.8,23,23.5,23.1,22.9,22.6,20.1,18.8
1910,16.8,19.1,19.9,22,22.4,22.6,22.5,22.9,22.7,22.3,21.7,19.4
1911,17.6,18.4,18.5,20.7,21,21.4,22.7,22.5,22.8,22.6,20.8,18.4
1912,17.4,18.2,20.2,19.6,21.6,22.4,23.1,22.9,22.7,22.8,21.4,18.2
1913,17.8,18.2,19.4,21.1,21.4,23.1,22.5,22.7,22.4,22.6,21.3,19
1914,18,18.2,19.2,20.3,21.7,22.1,22.5,21.6,21.9,22.1,19.6,17.4
1915,17.9,18,19.1,21.1,21.6,23.7,23.4,22.7,22.6,23.9,21.3,19.3
1916,17.4,17.6,18.7,19.5,21.1,22.2,21.9,22.9,22.4,22.6,20.1,17.6
1917,19.2,18.8,21.1,22,23.1,23.1,24.1,23,22.4,22.5,19.8,17.8
1918,18.5,19.3,20.5,22.2,23.9,24,22.8,23,23.1,22.6,20.5,18.1
1919,18.4,20.2,21.2,21.5,22.7,23.9,23.3,23.4,22.9,22.8,22.3,18.7
1920,19,18.8,20.2,22.7,23.3,23.4,22.6,22.6,22.7,22.8,20.2,17.7
1921,17.1,17.4,18.7,21,21.3,22.2,22,22.3,23,22.8,20.3,17.3
1922,17.3,17.6,18.8,19.2,21.4,22.1,22.3,22.7,22.2,22.2,20.5,18
1923,17.3,18.3,19,19.6,21.6,21.5,22.3,22.3,22.5,23.1,21.2,19.1
1924,17,16.9,19.2,21.2,22.7,22.2,22.1,22.4,21.9,22.5,20.6,17.2
1925,16.6,17.7,19,19.9,22.8,22.7,23.8,22.6,22.6,21.8,20.8,18.7
1926,18.2,17.7,20.4,21.4,22.9,23.2,22.1,22.9,22.5,23,20.2,18.2
1927,13.4,17.9,20.1,21,22.9,22.7,22.1,22.3,22.4,22,20.9,18.1
1928,17,16.4,19.1,20.3,22.6,23.3,22.8,23.2,22.4,22,19.6,17.9
1929,17,17.2,17.5,19,20.4,22,22.6,22.1,22.2,22.9,21.7,17.7
1930,16.6,16.9,18.7,20.4,21,22.6,23,22.4,23.1,22.9,21.4,18.3
1931,17.1,18.2,20.5,22.2,23,22.7,22.7,23.3,22.4,22.4,21,18.3
1932,17.1,19,20.8,22.9,23.9,23.4,22.9,22.9,23.4,23.6,20,18.4
1933,18.4,18.9,21.3,23.4,24.6,23.3,22.9,23.3,23.6,23.2,21.1,18.3
1934,17.8,18.1,20.2,22.5,23,23.3,23.5,23.5,23.6,23.3,21.3,18.7
1935,18,18.4,19.7,21.4,23.5,22.8,22.3,22.5,23,22.7,20.6,18.6
1936,18.6,18.6,21.1,21.7,24.1,23,22.5,22.4,22.6,22.5,20.9,19.3
1937,18.6,19.1,19.9,20.5,22.5,23.2,22.9,23,22.6,22.6,21.8,19.4
1938,18.6,19.3,21,21.8,23.8,23.5,22.9,23,22.9,22.6,21,17.7
1939,17.8,17.7,19.7,21.6,22.8,23.6,23,22.9,22.7,22.1,20.4,18.5
1940,18.4,18,20.6,21.4,23.1,23,23,22.9,23.2,22.3,20.6,17.7
1941,17.7,18.6,20.1,21.9,23,22.6,23.4,23.6,23.1,23.2,21.5,18.5
1942,17.9,18.2,20.3,21.5,23.1,23.9,22.9,22.8,23.2,23.1,21,18.5
1943,16.9,17.8,19.3,22.1,23.1,22.9,22.6,22.5,22.5,22.6,20.7,17.7
1944,17.5,18.9,20.7,22.5,23.6,23.5,23.5,23.5,23.2,23.2,21.9,18.4
1945,18.6,19.4,21.3,23.2,23.3,23.3,22.9,22.7,23,23.3,20.9,19.1
1946,17.6,18.6,21.2,22,23.4,23.5,22.9,22.6,22.7,22.7,21.5,18.5
1947,17.5,18.8,20.9,22.7,23.2,23.5,23.3,23.1,22.7,22.9,20.7,18.5
1948,17.1,18.7,21.3,21.5,23.1,22.6,22.6,22.7,22.7,22.6,20.7,18
1949,17.7,18.5,20.5,22.4,22.1,23.2,22.9,22.9,22.8,22.9,20.8,18.9
1950,18,18.5,21.4,22.8,23.5,23.1,22.4,22.1,22.4,22.2,20.8,18.5
1951,18.1,18.6,20,21.4,22.6,23.1,23.2,23.2,23.2,22.2,20.9,17.9
1952,17.6,18.2,20.4,21.9,22.3,22.9,22.6,23.1,22.6,22.7,21.4,18.6
1953,19.2,18.8,20.7,21.5,22.4,22.7,22.5,23.3,23,22.5,21.3,19.1
1954,17.8,17.6,20.3,21.6,23.4,22.5,22,22.2,22.9,22.6,21.2,18.4
1955,18.2,18.4,19.9,22.2,22.8,22.3,21.9,22.3,22.3,22,21.3,18.1
1956,17.9,18.3,19.8,21.7,22.6,22.5,22.1,22.4,22.5,22.6,21.5,18.3
1957,17.8,18.6,20.2,21.5,21.6,22.5,22.6,22.4,22.6,22.3,21.6,18.7
1958,18.7,19.6,21.1,22.6,23.1,22.7,22.5,22.2,23,22.6,21.4,18.2
1959,18.1,19.2,20,21.3,22.4,22.7,23.3,22.3,22.9,23.2,21.2,17.9
1960,17.8,19.3,20.3,21.7,22.5,22.6,22.6,23.3,23.1,23,21.5,18.4
1961,17.5,16.7,20.8,22.2,23.9,22.9,22.4,22.7,22.2,22.2,21.2,18.3
1962,17.9,18.6,20.8,22,23,23.1,22.6,22.4,22.4,22.4,21.3,17.7
1963,18.4,19.3,19.9,21.9,23,23.5,22.9,22.9,23.2,21.4,20.7,17.3
1964,17.6,19.2,20.1,21.9,23.5,22.6,22.5,22.9,22,22.2,20.5,17.8
1965,16.4,18.1,20.1,21.7,22.9,22.6,22.6,22.6,22.4,22.3,20.6,17.4
1966,17.2,19.3,20.5,21.9,23.5,23,23.8,23.2,22.3,22.2,20.9,18.1
1967,17.9,18.4,20,21.8,22.7,22.5,22.5,22.7,22.2,21.9,20.3,17.2
1968,16.5,18.1,19.2,20.3,21.9,22.6,23,24,22.5,22.6,20.9,18
1969,18.5,19.1,21,23.1,23.9,23.5,22.5,23.2,22.5,22.5,20.2,17.4
1970,17.8,18.3,20.4,22.2,22.8,22.9,24.5,22.2,22.3,21.8,20.3,17.4
1971,16.5,17.2,18.5,20.1,21.4,22.4,22.3,22.1,22.1,21.5,20,16.8
1972,17.1,17.1,19.4,19.8,21.5,22.3,23.1,23.6,22.8,22.4,21.5,18.3
1973,17.2,18.6,20,23.6,22.4,23,23.1,22.6,22.8,22.1,20.4,16.9
1974,16.6,17.4,19.5,19.8,21.1,22.7,21.8,22.6,22,22.1,19,16.7
1975,16.7,17.5,18.6,21,20.7,22.4,21.9,22.5,21.6,22.1,19.1,16.4
1976,16.9,17.4,19.5,20.4,21.3,22.2,22,22.3,22.2,22,20.1,17.2
1977,17.2,17.5,19.7,21,21.4,22.6,22.9,23,22.4,22.7,19.7,18.8
1978,18.8,18.3,19.3,20.4,22.3,22,22.2,22.6,22.2,22,20.4,17.1
1979,17.9,17.6,19.7,20.9,22.6,22.5,22.8,23.2,22.8,22.7,20.4,18.6
1980,18,18.3,19.5,21.1,21.7,22.1,22.9,23.3,22.7,22.9,21.5,18.6
1981,17.9,17.7,20.1,21.1,22.3,23.4,22.3,22.9,22.8,22.6,20.8,16.8
1982,16.7,17.9,19.5,20.5,21.7,22.7,22.9,22.9,22.9,21.9,19.8,17.8
1983,17.2,19,21,21.5,22.9,22.9,23.1,23.6,22.8,22.5,20.9,18.3
1984,18.8,18.2,19.7,21.2,22.9,22.4,22.5,23.4,22.7,21.9,20.1,17.9
1985,18.7,18.4,19.9,21.1,21.1,22.5,22.4,23,22.5,22.8,20.8,18.5
1986,17.4,18.2,20,21.2,22.7,22.8,22.7,22.7,22.5,22.5,19.9,17.3
1987,17.4,18.1,19.6,22.2,23.4,23.2,24.3,23.4,23.1,22.8,20.9,18.7
1988,17.5,18.8,20.4,21.6,22.5,22.7,22.7,22.6,22.8,22.3,20.7,19.2
1989,17.5,18.9,19.3,20.8,21.4,22.7,22.8,22.9,22.6,21.8,20.6,19.1
1990,17.9,17.8,20.8,21.2,23.4,22.5,22.6,23,22.8,22.5,20.5,18.8
1991,18.7,18.7,20,20.3,20.8,23.1,23.1,23.4,22.8,21.9,21,19.8
1992,17.9,18.3,20.3,21.4,21.9,23.1,22.4,22.9,22.9,22.1,20.8,18.3
1993,18.4,18.6,19.6,21,22.8,23.2,23,23.1,22.9,22.2,20.7,18
1994,16.6,18.1,20.2,21.1,21.7,22.5,22.6,23,22.5,22.4,21.2,18.3
1995,17.4,18.6,19.7,20.9,22.4,23,23.1,23.2,23,22.5,19.9,20.1
1996,18.4,18.3,19.6,20.5,21.5,23.2,23.1,23.3,23,22.9,21.5,19.2
1997,19,18.6,20.6,20.5,22.8,22.8,23,23.3,22.9,23.3,21.2,18.1
1998,18.5,20.5,21.5,22.4,22.4,23.3,23.3,23.4,22.9,23,21,18.9
1999,19.3,19.6,20.2,20.3,22.4,23.1,23.4,23.7,22.8,22.6,21.6,19.3
2000,19.3,18.3,20.2,23.1,22.9,22.6,23.2,23.7,22.7,22.5,21.3,18.2
2001,17.4,18.3,19.7,21.6,21.7,23,22.8,23.6,22.9,23.1,22.1,20.3
2002,18.7,19.3,19.1,21,22,23.1,23.7,23.8,23.2,23,20.4,19.3
2003,18.7,19,20.6,21.8,22.3,22.7,22.8,23.3,22.7,22.7,21.1,18.5
2004,18.2,18.4,20.5,22.5,22.7,22.1,22.4,23.1,23.1,23,21.4,19.4
2005,20.3,19,21.1,21.8,24.1,24.2,23.3,23.9,23.5,22.7,20.2,19
2006,18.8,18.8,20.4,21.3,24,23.4,23.3,23.5,23,22.8,20.5,17.2
2007,18.2,19.3,20.8,21.4,23,23.2,23.4,23.4,22.7,23.1,20,18.7
2008,18.2,19.4,20.7,21.4,23.5,23.4,22.7,23,23,23.4,21,18
2009,17.2,17.7,19.5,21.1,22.4,23.2,23.2,23.3,23.1,22.8,22.1,17.9
