1901,18.3,20.1,20.7,21.9,21.8,22.2,22.1,22.1,21.1,21.2,20.4,18.5
1902,16.9,19.6,20.5,21.7,22.4,23,22.2,22,21.1,21,20.2,19.4
1903,18.4,18.7,21.4,22.8,23,21.4,21.7,21.5,20.8,20.6,18.8,15.3
1904,15.4,17.4,20,20.8,22.1,22.1,21.7,22.2,21.6,21.4,19.3,17.1
1905,18.7,20.3,21,22.8,22.1,22.1,22.1,22.6,21.8,21.6,20.7,21.1
1906,19.7,20.6,20.8,23.5,23.8,22.7,22.3,22.5,22.1,21,19.4,18.5
1907,17.5,19.2,19.6,21.6,21.6,21.9,21.7,21.6,21.6,20.9,20.1,16.3
1908,17.4,18.7,20.1,21.8,22,22,21.7,21.6,21.3,21.1,18.7,17.9
1909,17.6,19.2,20.2,21.5,21.8,22.1,21.4,21.9,21.5,21.3,19,17
1910,18.2,18.2,19.3,21.3,22.1,21.8,22,22,20.7,20.8,19.8,16.7
1911,17,18.5,20.2,21.9,22.4,22.1,21.9,22.5,21.7,21.3,21.6,19.5
1912,18,19.3,21.3,22.2,23.6,22.7,21.5,21.4,21.2,20.7,18.7,17.9
1913,17,19.4,20.6,22.5,21.7,21.6,21,21.6,21.3,20.8,19.3,17.8
1914,16.7,19.3,20.5,22.3,23.4,22,21.3,21.4,21.3,20.9,20.4,18.8
1915,17.7,20.1,20.8,22,22.2,21.9,21.7,21.9,21.2,20.6,19,15.7
1916,15.8,18.4,20.8,21.7,22.2,21.6,21.7,21.6,21,20.4,18.4,16.6
1917,17.1,18.7,19.2,22.2,22.4,21.4,21.4,21.1,20.7,20,19,16.8
1918,16.8,17.2,19.5,20.9,21.5,21.9,22.2,21.8,21.7,21.1,20.8,19.2
1919,18.3,19.5,21.2,21.9,22.4,21.6,21.5,21.8,21.3,21,19.5,18.3
1920,16,18.8,20.6,21.7,22.7,22,21.5,22,21.3,20.3,20.3,18.1
1921,16.8,18.1,20.3,21.4,21.6,21.8,20.8,21.5,20.6,20.5,18.6,17.7
1922,17.7,19.2,19.1,21.4,22.4,21.8,20.8,21.4,21.6,20.6,18.9,17
1923,16.7,17.5,19.7,20.7,21.2,21.5,20.4,21,20.7,20.5,20,18.5
1924,17.8,18.7,20.4,21.1,22.1,21.8,20.6,21.6,20.8,19.9,20.5,16.1
1925,17.4,17.8,20,20.4,22.2,21.7,21.5,21.6,21.4,20.4,19.9,16.7
1926,17.6,19.1,20,22.4,23.2,22.5,21.6,21.4,21.3,20.4,19.7,18.1
1927,17.3,18.9,20.7,20.7,21.2,21.6,21.2,21.4,21.2,20.4,19.9,18
1928,18.7,18.6,20.1,20.7,21.8,21.5,21.2,21.5,20.9,20.1,19.5,18.3
1929,17.8,18.3,18.9,20.8,21.9,21.3,20.9,21.4,21.2,20.3,19.5,18.9
1930,18,18.3,19.2,20.3,22.3,21.8,21.1,21.5,21.7,21,19.7,18.2
1931,18.2,17.8,21.3,22.2,22.7,22.2,21.7,21.6,21.2,20,19,17.6
1932,16.3,19.1,20,21.7,22.9,22.5,21.6,22.5,21.5,21,20.4,17.1
1933,18.1,19.4,20.3,21.7,23,22.4,21.6,22.7,21.7,21.1,19,17.7
1934,17,17.9,20.1,21.8,23.2,22.7,21.9,21.8,21.7,21,20.3,16.5
1935,18.4,19.5,21.1,22,22.4,22.2,21.5,22.2,21.5,21.6,20.6,18.7
1936,17.1,18.6,20.1,22,23,22.2,21.7,21.7,21.5,20.4,19.5,19.1
1937,18.1,19.2,21.5,22.1,21.8,21.8,20.9,21.4,20.9,20,20.5,17.9
1938,17.6,19.1,20.4,21,20.7,20.4,20.5,22.1,21.5,20.9,18,17.5
1939,19.2,17.8,19.7,20.8,21.7,21.1,21,21.2,21.3,20.4,20,15.3
1940,14.3,17.7,18.6,20.9,21.6,21.8,21.8,21.5,21.5,20.7,20.6,18.9
1941,19.1,19.6,20.4,23,22.7,22.4,22.4,22.4,21.7,21.6,21,18.8
1942,17.6,19.8,20.5,21.7,21.5,21.8,21.3,21.5,20.9,20.1,20,18
1943,15.5,17.3,19.3,20.1,21.6,21.1,21.1,21.1,21.1,20.8,19.6,17.1
1944,17.7,18.9,19.5,21.2,21.6,21.4,21.2,21.5,21.5,21.2,20.2,17
1945,17.4,19.1,19.5,20.9,21.1,21.2,21.6,21.2,20.8,20.1,20.3,17.9
1946,16.9,20.6,21.5,22,22.6,22.2,21.3,21.5,21.1,20.4,20,19.1
1947,19.1,19.7,21.2,21.8,22.5,22.1,21.6,21,21,20.9,19.5,17.4
1948,17.5,19.7,20.6,21.3,22,22.4,21.8,22.2,21.6,21.2,18.8,18.1
1949,16.7,18.4,20.6,21.6,22.1,22,21.2,21.2,21.7,20.9,19.7,18
1950,16.8,18.2,20.6,21.4,21.9,21.6,21.1,21.7,21.2,21.2,19.7,16.9
1951,16.7,17.1,19.2,20.7,21.8,20.9,20.6,21.7,21.1,21.1,20.5,18.5
1952,17.4,19.9,20.5,20.9,21.4,21.6,21.8,21,21.1,21.1,19.8,16.2
1953,18.5,20,20.1,20.9,21.7,21.3,21.1,21.7,21.2,20.9,19.7,18.2
1954,18.4,18.7,20.2,21.5,21.9,21.6,20.9,21.6,20.7,20,18.5,17.2
1955,16.8,17.8,19.3,21.2,22.2,20.8,21,21,20.6,20.3,19.3,15.7
1956,15.4,18.2,19,21.3,21.1,21.2,20.8,21.4,20.8,20.3,18.4,16.6
1957,16.6,18,19.8,22.1,22.4,22.7,21.6,22.2,21.5,21,19.5,18.6
1958,18,18.9,20.3,20.8,22.7,21.9,21.6,21.2,21.6,21.1,18.8,16.6
1959,17,19.6,20.7,22.4,21.7,22.3,21.1,21.8,21.5,21.4,20.7,19.9
1960,18.4,18.6,20.9,22.3,22.2,22,21.4,22.4,21.8,21.4,20.5,18.5
1961,17.4,19.8,19.8,21.7,22.3,21.9,21.8,21.9,21.7,20.6,20.1,17.5
1962,17.9,17.4,20.2,21.5,22.1,22.3,21.9,21.2,21.3,20.8,19.2,17.2
1963,15.2,19.9,19.8,21.6,21.8,22.7,21.8,22.4,22.1,21.1,20.5,18.6
1964,18.3,19.5,20,22.8,22.5,22.3,21.7,21.9,21.6,21.3,19.3,17.4
1965,16,20,20.3,21.3,22.3,21.6,21.6,21.6,21.8,20.9,20.3,20
1966,18.4,19.7,20.8,21.8,23.1,22.2,22,22.1,21.1,20.9,20.2,20.1
1967,18.8,18.1,18.5,21,22.1,21.9,21.7,21.6,21.7,20.7,19.9,16.9
1968,16.8,18.5,19.5,20.7,21.8,21.5,21.7,21.8,21,20.5,19.7,18.7
1969,19.7,19.3,20.5,21.7,22.8,22.5,21.5,20.8,21.3,20.8,19.4,17.3
1970,18.5,18.5,19.9,21.3,21.7,21.9,21,21.5,21.8,20.8,20.3,19.2
1971,16.9,18.3,20.1,20.9,21.9,21.7,20.9,20.9,21,20.8,17.9,19.3
1972,15.9,18.6,19,20.5,22.4,21.6,21.9,21.1,21.3,20.7,20.6,18.8
1973,17.4,18.7,20.5,21.2,21,21.6,21.6,21,20.9,20.5,19.5,17.4
1974,15.9,17.9,19.5,21.1,21.1,21.3,21,21.6,21.3,20.8,20.2,18.1
1975,19.7,18.6,20.6,21.2,21.3,21.1,20.7,21.6,20.7,20.9,19.4,16.8
1976,15.5,17.6,19.3,20.8,21.3,21.1,21.6,20.9,20.9,20.7,18.8,17.6
1977,18.3,18.4,19.4,20.7,21.9,22.1,21.7,21.9,21.1,20.8,19.2,17.7
1978,19.3,19.6,19.9,21.8,22.3,22.5,21.7,22,21.4,20.6,19.1,18.4
1979,18.7,20.1,20.6,22,23,22.3,22.1,21.8,21.3,20.3,19.2,17.1
1980,16.9,19,21.1,22.3,23.1,22.2,22.1,21.6,21.4,21,20.5,18
1981,16.7,19.1,19.8,21.7,21.8,21.7,21.2,21.3,20.5,20.9,20.3,17.6
1982,16,18.9,19.9,21.6,21.6,21.3,20.8,20.8,20.6,19.7,19.7,16.4
1983,17.1,17.7,19.9,21.6,22.2,21.7,21.6,21.6,21,21.1,19.3,18.1
1984,17.9,20,20.3,22.6,22.1,21.4,20.7,21.7,20.3,20.4,20,18.8
1985,18.5,19.7,20.7,22.2,21.2,21.4,20.8,21.4,20.3,20.7,20.3,17.9
1986,16.9,18.5,19.5,21.5,22,21.7,21.1,21.6,20.8,20.9,20.1,18.4
1987,18.5,18.4,20.1,21.5,21.7,21.6,22,21.3,21,21,21,17.3
1988,18.5,20.6,21.4,21.6,22.6,21.7,20.9,21.3,20.9,20.6,19.7,17
1989,19.3,18.5,19.8,21.9,21.6,21.1,21.1,21,20.3,20.4,19.8,16.4
1990,19,19.2,20.3,22.3,21.6,22.2,21.6,21.9,21.1,21.2,20.2,18.8
1991,18.6,19.5,21.2,22.3,21.9,22,22.2,21.8,22,20.6,19.1,19.2
1992,18.5,19,20.1,22.3,22.7,22.1,21.5,22,21.8,20.8,19.3,18.3
1993,19,18.1,21.4,22.3,21.4,23.1,22.8,22.4,21.7,21.2,20.2,19.3
1994,18.8,20.7,21.1,22.5,22.7,22.1,21.7,21.9,21.9,19.8,20.4,20.2
1995,19.3,19.3,22.1,23.1,23.3,23.1,21.7,21.7,22.1,21.1,20.9,18.5
1996,18.7,19.6,20.9,22.7,22.3,22.1,21.3,21.9,21.4,20.8,21,18.2
1997,17.1,19.6,20.7,21.2,22.3,22.3,22,22.3,21.4,21.7,20.8,20.2
1998,19.9,20.9,21.5,22.6,23.1,22.7,22.4,22.1,21.4,21.9,21.5,20.3
1999,20.6,20.1,21.6,21.7,22.1,21.7,21.5,21.3,21.3,21,21.1,18.2
2000,19.7,19.1,21.2,22,22.4,21.4,21.8,21.8,21.2,21.7,20.4,20.4
2001,19.9,18.9,20.5,23.8,21.5,21.5,21.6,21.7,20.9,20.9,18.7,18.9
2002,17.9,20.5,21,21.7,21.6,21.6,21.7,21.2,20.9,21.1,20.9,19.9
2003,18,19,20.4,22.7,21.5,21.7,21.9,21.6,21.5,20.7,20,17.6
2004,18,18.6,20.7,22.8,21.6,21.4,21.4,21.7,20.9,20.7,20,17.5
2005,18.3,19.9,20.5,22.3,22.1,21.9,21.5,21.8,21.1,21.2,20.5,19.6
2006,18.1,19.8,20.4,21.7,21.2,21.6,21.7,21.4,20.8,21.2,20.2,18.5
2007,19.2,19.3,21.1,21.9,21.3,20.3,21.3,21.8,21.3,21.2,19.4,18.8
2008,18.8,19.6,20,21,21.3,21.7,21.3,21.7,21.1,21.5,20.7,18.5
2009,17.4,19.5,20.9,21.9,21.8,21.8,21.4,22.3,21.7,21.4,20,19.5
