1901,17.3,17.4,18.9,21.7,22.6,22.7,22.7,22.4,21.6,20.7,19.2,17.5
1902,17.2,18.1,19.8,22,23.1,23.1,22.8,22.7,21.6,20.8,19.7,18.8
1903,17.1,17.5,20,22.5,22.6,22.6,22.6,22.2,20.9,20.3,18.1,15.8
1904,15.6,17.8,18.5,21.1,22.2,22.5,22.5,22.6,21.8,20.9,18.7,16.7
1905,18.6,17.9,18.1,21.6,22.8,22.8,22.9,22.9,21.8,20.8,19.5,20
1906,17.9,19.2,18.8,22.2,23.2,23.4,23.2,23.3,22.2,20.4,18.4,18
1907,17.2,18,18.5,21.2,22.1,22.4,22.8,22.5,21.8,21.2,19.7,16.5
1908,17.4,17.6,18.1,21.1,22.3,22.6,22.7,22.6,21.8,20.8,18.7,17.7
1909,17.2,18.3,18.8,21.6,21.9,23,22.6,22.9,22.1,21.1,18.9,17.3
1910,17.8,17.6,18.2,21.2,22.9,22.8,22.8,22.8,21.2,20.3,19,16.3
1911,16.4,17.5,18.8,21.6,22.5,23,22.7,23.1,22,20.6,20.1,18.8
1912,16.9,18.2,19.8,21.8,24,23.5,22.6,22.2,21.4,20.3,18.1,17.3
1913,16.3,18.2,18.8,22.2,21.9,22.5,22.2,22.2,21.5,20.3,18.5,17.2
1914,16.4,18.5,19.4,22.2,23.7,22.8,22.4,22.4,21.3,20.3,19.3,18.3
1915,16.9,19.3,19.3,22.4,22.5,23.1,22.9,23,21.4,20.6,18.5,16.1
1916,15.8,17.5,18.8,21.7,22.6,22.1,22.8,22.6,21.2,20,17.6,16.6
1917,16.2,17.6,17.7,21.9,22.5,22.4,22.2,22.2,21.3,19.8,18.1,16.3
1918,15,16.5,18.1,20.8,22,22.5,23.1,22.3,21.7,20.7,19.6,18.8
1919,17.4,18,20,22.1,22.7,22.5,22.5,22.4,21.3,20.1,18.5,17.6
1920,15.5,17.8,18.8,21.4,22.8,22.7,22.5,22.9,21.7,20,19.5,18.2
1921,16.1,17.4,18.9,21.4,22.2,22.6,22,22.3,20.9,20.1,18.1,17.5
1922,17.1,18.4,18.1,21.7,23,22.7,22,22.5,21.8,20.2,18.2,16.8
1923,16.3,16.8,18.4,20.9,21.8,22.1,21.8,21.7,21.3,20.1,19.4,18
1924,17.3,18,18.7,21.1,22.9,22.5,21.8,22.4,22.4,20.6,19.3,16
1925,16.6,16.8,18.6,20,22.6,22.4,22.5,22.6,21.6,19.9,19.2,16.5
1926,17,18.1,18.6,22,23.2,22.6,22.6,22.2,21.7,19.9,18.8,17.7
1927,16.6,17.8,18.8,20.6,21.8,22.5,22.3,22.3,21.3,19.9,19.3,18
1928,18.9,17.3,20.1,21.3,22.9,22.6,22.9,22.7,21.3,19.1,18.3,18.9
1929,18.4,18.3,18.4,21.1,24,23.3,22.4,22.3,21.5,20.6,18.5,18.9
1930,14.9,17.9,17.8,22.8,23,23.3,22.3,22.4,21.1,20.4,19.6,18.5
1931,18.1,18.9,20.1,23.4,23.5,23.5,23,22.4,21.4,18.9,18.4,17.9
1932,16.3,17.1,17.7,21.9,23.7,23.3,22.3,22.8,20.8,20,19,17
1933,15,19.1,18.4,22.3,23.3,23.6,22.5,22.8,21.6,20.1,17.9,18
1934,15.4,16.9,18,20.5,22.8,23.1,22,22.4,21.6,19,19.3,17.3
1935,17.9,19.1,20,22.3,22.6,23.4,22.6,22.6,20.9,20.8,19.9,17.4
1936,16.1,18.2,17,22.5,22.8,23.1,22.7,22.1,21.5,19.4,19.1,18.8
1937,17.8,18.5,20.7,22.5,22.7,22.7,22.4,22.4,21.1,20.2,18.7,18.2
1938,17.5,17.9,17.7,21.1,22.4,22.9,22.2,22.1,21.3,20.1,18.7,18.1
1939,16.7,18.6,19.4,21.1,22.1,22.7,22.8,22.3,21.4,20.4,19.7,15.3
1940,15.9,18.3,19.2,21,22.8,23.2,23.1,22,21.8,21,19.7,19.1
1941,20.4,20.1,19.5,22.1,23.2,22.9,23.2,22.8,21.7,20.6,19.6,18.5
1942,16.9,18.5,19.9,22,22.7,23.1,22.6,22.3,21.1,20.2,19.1,17.9
1943,16.4,18.2,19.4,21.1,22.9,23.1,22.9,22.5,22.1,21.1,19.1,17.5
1944,18,18.3,19.3,22.3,22.5,22.8,22.9,22.5,21.9,20.8,19.6,15.8
1945,16.6,16.7,18.4,21.1,21.7,22.6,22.8,22.7,21.5,19.6,20.1,17.8
1946,16.7,18,19.9,21.9,22.4,23.3,22.1,22,21.4,20.1,19.4,18.1
1947,19.8,18,18.5,20.2,22.8,22.6,22.5,22.6,21.6,20,18.4,17.5
1948,17,19.3,19.2,20.9,22.5,22.5,22.4,22.4,22,21.3,17.9,19.3
1949,16.3,18.6,19.8,21.8,23.4,23.3,23.2,22.8,21.9,20.8,19.2,18.8
1950,18.5,18,19.8,21.2,22.6,22.4,22.7,22.6,21.5,20.6,19.3,16.4
1951,16.7,18.5,18.3,21.7,22.3,22.4,22.7,22.7,22.1,20.9,19.7,17.9
1952,17.6,19.4,20.3,21.8,23.5,23.1,23,22.5,21.6,20.5,19.4,16.3
1953,17.4,18.4,19.9,20.9,22.7,22.8,23.1,23,21.7,21.6,19.5,17.7
1954,19.2,18.5,17.5,22.2,23,23.4,23.5,23,21.4,20.4,19,17.1
1955,15.3,19,19.9,21.1,22.9,22.6,22.8,22.8,22,20.6,18.1,17.3
1956,15.6,18.9,19.8,21.8,22.6,22.6,22.8,22.4,21.8,20.4,18,16.4
1957,16.9,16.8,18.1,21.5,23.1,22.7,22.7,22.6,21.6,20.2,19.6,18.9
1958,17.5,17.4,20.5,22.7,23.7,22.8,22.6,22.4,21.4,19.8,18,17.3
1959,16.8,19.3,17.8,21.9,22.8,23.9,22.7,22.5,21.4,20,19.6,19.2
1960,17.3,17.8,20.4,21.6,22.6,22.6,22.7,22.7,21.5,20.4,19.8,17.3
1961,16.1,17.9,19.7,21.6,22.2,22.7,22.7,22.7,21.4,20.5,19.4,18.7
1962,15.4,17.2,18.5,21.2,22.7,22.6,22.9,22.8,21.6,20.7,18.9,17.2
1963,13.5,16.9,18.1,21.8,23.3,22.5,22.5,22.7,21.9,20.9,20.4,17.7
1964,18.1,17.2,18.8,22.4,21.6,22.6,23.3,22.5,21.6,21,18,16.7
1965,15.9,19.2,18.4,21.5,22.4,22.3,22.4,22.7,20.5,21.2,20,18.8
1966,18.9,19.5,20,21.6,21.4,22.9,22.7,22.4,21,21.3,19.3,19.3
1967,15.7,16.8,19,21.2,22.8,22.9,22.3,22.6,20.9,19.4,19.4,16.1
1968,17.1,15.9,18.5,20.8,22.5,22.4,23.3,22.4,21.4,20,19.6,19.5
1969,18.9,17.9,18.9,21.9,23.1,22.7,22.4,22.9,22,21,18.1,16.4
1970,16.4,18.4,18.8,20.7,22.4,23,22.6,21.7,21,19.3,18.4,18.4
1971,15.2,16.7,17.6,21.3,23.4,22.1,22.6,22.5,22.1,19.6,17.5,17.7
1972,15.6,18,18,19.7,22.8,22.6,22.1,21.7,21.5,21.5,20,18.6
1973,17.3,20,20.6,23,23.4,23.2,22.9,22.9,21.8,20.2,18.1,16.7
1974,16.3,16.6,17.4,20.8,22.6,22.6,23.3,22.5,22.1,20.2,18.5,17.5
1975,17.1,18.6,19.6,21.8,22.9,22.3,22.9,22.3,22,20.3,18.4,15.4
1976,15.8,18.7,18.3,21.7,22.6,22.5,22.6,22.6,21.3,20.6,17.5,17.7
1977,16.5,16.1,18.5,21.5,23,24,22.8,22.8,21.1,20.8,19.2,18.9
1978,18.2,18.3,19.9,21,22,22.8,22.5,22,20.8,19.5,19.2,18.7
1979,19.2,19.9,20.5,21.3,21.7,22.7,23,22.5,21.6,19.6,18.9,18.6
1980,18.2,17.9,20.8,22.1,22.5,22.8,22.8,22.8,21.1,20.6,19.5,18.3
1981,16.6,19.1,19.7,21.7,22.2,22.1,22.4,23.1,22.8,20.6,19.2,16.5
1982,17,18.6,19.6,20.3,22.3,22.3,22.7,22.5,21.1,21.1,20.4,16.5
1983,16.4,18.4,18.5,23.5,24.2,23.1,24,23.3,22.9,21,18.5,17.2
1984,15.3,17.1,18.3,22.5,22.2,22.3,22.7,22.2,21.1,20.3,19.3,17.7
1985,16.9,19.1,17.8,19.9,22.2,22.4,22.2,22.3,20.9,20.5,20.2,17.9
1986,16.5,18.3,18.4,21.7,22.1,22.7,22.6,22.7,21.7,20.7,18.9,18
1987,17.8,19.3,20.6,21.8,23,23.2,23.2,23.3,21.9,22,20.1,16.3
1988,18.6,19.1,18.5,20.3,22.9,22.9,23.2,22.6,22.2,19.6,18,17.6
1989,17.9,17.8,18.2,22.2,22.6,22.7,23.2,23,22.3,20.8,19.4,18
1990,18.2,18.9,18.3,22.1,21.8,22.9,23,23.4,22,20.7,19.8,18.9
1991,19.2,19.4,20.5,23.1,23.5,23.1,23.1,22.7,22.2,20.5,19.2,18.8
1992,16.8,18.3,20.1,23.3,23.9,23.3,23,22.8,22.1,19.9,19,19.2
1993,16.9,18.9,19.5,21.9,23.2,23.7,23,22.9,22.1,20.9,19.7,17.8
1994,18.4,19.8,18.5,22.9,23.8,22.9,22.9,23,22,20.6,20.2,20.1
1995,17.7,17.9,19.1,23.3,23.4,23.7,23.3,23.5,22.3,21.2,19.2,17.9
1996,18.2,16.8,19.4,20.7,22,23.4,23.4,23.3,21.8,21.2,20.1,17.8
1997,17.5,17.8,19.3,21.1,22.8,23.2,23.1,23.1,22.1,22.2,21,20
1998,19.5,20,20.9,22.7,23.7,23.9,23.6,23.5,22.6,21.7,20.4,18.6
1999,17.7,19.1,19.9,21.7,22,22.7,23.1,23.4,22.5,21.6,19.6,16.4
2000,18.3,17.9,19.2,21.8,22.5,22.7,23.1,23.6,22.3,21.2,19.1,19.4
2001,19.4,18.9,19.1,23.4,23.1,22.8,23.2,23.3,22.8,22,18.6,18.5
2002,18,19.6,20.1,22.6,22.8,23.4,23.4,22.9,21.6,21.3,20.3,19.9
2003,17.6,19.8,19.4,23,23.5,23.4,23.5,23.4,22.1,21.6,20.5,18.2
2004,18.6,17.9,19.7,22.1,23.6,23,23.2,23.4,22.4,21.1,20.4,18.9
2005,18.2,20.2,18.4,22.3,22.9,23.7,23.4,23.2,23.2,19.4,20.8,18
2006,18.2,19.6,19.1,22.2,23,23.4,23.7,23,22.4,21.6,20.7,19.3
2007,17.5,19.7,20.3,21.5,22,22,23.3,22.1,22.1,20.8,18.4,19.5
2008,17.4,15.5,18.6,22.2,21.8,22.5,23.5,22.7,22.2,21.9,19.4,18
2009,16.1,20.6,19.4,21.6,22.4,23,23.1,23.6,22.3,21.7,19.3,19.3
