1901,16.3,15.7,17.3,18.2,19.7,22.1,22.4,22.4,23.2,22,18.3,17.2
1902,15.6,15.6,17.1,18.3,20.1,22.2,22.5,22.2,22.9,22.4,20.2,18.5
1903,16.6,17.4,17.8,17.8,19.1,21.5,22.4,22.4,21.8,21.1,19.5,17.2
1904,16.5,16.9,18.1,18.6,20.2,21.5,21.9,21.8,21.8,21.8,18.9,17.7
1905,15.3,17.1,18.9,19.4,21.9,22.8,22.4,22.7,22.9,22.7,20.5,18.8
1906,17.5,17.1,17.4,18.1,20.1,21.9,22.2,21.8,22.6,21.9,19.6,16.6
1907,17.6,16.3,17.9,18.3,21.4,22,22.3,22.2,22.3,22,20.7,19
1908,17.2,16.4,18.4,20.1,20.9,22.1,22.4,22.4,22.6,21.5,20.4,19.1
1909,16.7,17.1,17.8,19.3,20.2,22.4,22.1,21.7,22.1,22.2,19.5,17.2
1910,15.8,16.4,16.9,17.7,20.4,22,22.1,22,22,21.6,18,15.8
1911,17.2,16.3,16.7,19,19.5,21.7,22,21.8,21.9,22.1,21.4,19.2
1912,18.1,15.8,19.5,20.1,21.4,22.4,22.6,22.2,22.6,22.5,20.3,19.8
1913,18.6,18.2,19.7,18.7,19.9,21.4,22.4,22.1,21.9,21.4,19.3,17.7
1914,16.7,17.1,16.5,19.2,20.1,22,22.6,22.6,22.1,21.9,19.6,19.1
1915,17.8,16.5,15.3,17.8,21.6,23,23,23.1,23.2,22.9,20.6,18.2
1916,18,16.8,16,18,21.1,22.6,22.3,21.9,22.1,21.8,20.1,17.8
1917,17.3,15.8,18.7,18.6,20.2,21.9,22.3,22.5,22.5,22.1,17.8,17
1918,15.4,17.4,17.9,19.1,20.5,22.1,22.1,22.5,22,22.6,19.9,18.6
1919,17,17.1,18.8,18.5,20.9,22.3,22.2,22.7,22.3,22.2,19.2,17.6
1920,16.2,15.6,17.4,20,21.5,22.5,21.9,22,21.9,21.4,19.9,19.1
1921,15.2,16.1,17.2,19.5,20.5,22.8,22.1,21.9,22.3,21.4,19.4,18.1
1922,14.7,15.6,17,18.3,19.6,21.7,21.5,21.7,22.3,21.7,19.7,17.9
1923,15.5,15.2,16.8,18.3,20.3,22.1,22.1,22.2,22.6,21.7,18.9,18
1924,17,15.6,16.7,20.7,22.6,22.4,23.2,23.3,22.9,22.6,19.6,19
1925,17.9,17.6,18.7,19.2,21.7,22.6,22.2,22.6,23.2,22,20.6,18.5
1926,16.1,16.7,18.1,20.8,21.3,22.2,22.3,23.1,23.5,23.3,21.2,19.2
1927,15.1,17.2,17.6,19.8,19.9,22.6,22.8,21.9,21.5,21.3,19.6,17.9
1928,16.7,17.7,17.7,19.4,19.5,22.3,22.6,22.3,23.1,21.8,20.1,17.2
1929,17.6,17.7,19.1,19.6,21.6,22,22.1,22.3,22.4,21.3,20.5,18.8
1930,18.4,16.7,17.4,19.7,20.9,21.9,22.2,22.4,22.8,21.3,18.4,17.5
1931,16.1,15.7,16.4,18.5,20.4,21.6,23.2,22.8,22.9,21.9,19.9,19.6
1932,17.9,17.9,17.7,18.6,22,22.1,22,22.5,22.9,20.5,18.5,18.3
1933,17,17.4,18.7,19.8,22.1,22.2,22.3,23.3,22.5,23,19.3,19
1934,17.7,16.3,18,18.9,21,22.5,22.4,22.6,22.7,21.9,18.8,17.5
1935,17.1,15.9,18.2,19.5,21.8,22.1,22.4,22.2,22.6,22.2,19.4,16.9
1936,18.1,17.9,17.2,19.5,21,22,22.6,22.8,22.4,22.9,20.6,19
1937,19.1,17.7,18.9,19.7,20.6,22.3,22.4,22.5,22.7,21.9,20,18.6
1938,18.4,18.5,17.5,19.1,20.9,22,21.6,22,22.1,21.5,20,17.5
1939,17.5,17.9,17.4,18.8,20.5,21.9,22.2,22.7,22.4,22.9,20.1,17.5
1940,15.6,16,17.6,19,19.7,23,23.3,22.7,22.4,20.2,19.4,18.9
1941,17.4,15.1,16.4,18.6,20.1,22.4,22.6,23,22.8,22.3,20.5,20.1
1942,17.5,15.4,18.3,18.8,20.5,22.6,23.6,22.7,22.7,21.5,19.4,19.1
1943,17.3,16.2,17.7,17.9,20.8,21.9,22,22.4,22.5,20.9,19.8,17.1
1944,16.2,16.3,18.7,19.6,20,21.8,22.1,22.3,22,21.2,18.5,17.1
1945,15.4,16.7,17.6,19.6,19.5,22.7,22.4,22.4,22.4,21.6,18.8,17.4
1946,17.6,17.5,18.6,18.3,21.5,22.7,22.4,22.2,22.3,21.9,20.4,19.6
1947,19.1,15.7,17.2,20.7,20.8,22.4,22.5,22.3,22.7,22.1,20.8,18.9
1948,17.8,17.8,19.3,19.1,20.1,22,22.2,22.7,22.9,22,21.1,19.3
1949,17.4,17.8,17.4,19.6,20,21.8,21.9,22.2,22.7,22.3,18.9,19
1950,18.2,16.5,17.3,17.4,20.1,21.8,22.2,22.4,22,21.5,18.5,16.6
1951,14.2,15.5,15.9,18.2,19.8,21.6,22,22.3,22.6,21.3,19.4,19.1
1952,16.8,15.4,17.5,18.5,20.7,22.6,22,22.1,22,21.7,19,16.1
1953,16.1,17.6,17,18.7,21,21.6,21.9,22,22.2,21,19.9,18.7
1954,17.2,14.9,16.6,18.7,20.4,21.6,22,22,22,22,19,17
1955,15.3,16.4,16.9,17.4,19.3,21,21.3,21.9,22,20.6,18.9,18
1956,14.5,16.5,16.3,18.1,20.9,21.5,22.2,21.6,21.2,20.9,18.2,17.4
1957,16.1,18.4,16.9,19,20.7,21.3,21.9,22.1,22.2,20.3,19.8,17.5
1958,15.8,14.1,17.4,18.8,21.3,22.7,23.1,22.3,23,21.4,20.2,18.6
1959,16.5,18,18.3,19.3,20.3,22.5,22.2,22.8,22.4,22.5,19.4,18.1
1960,16.7,16.4,17.5,19.3,20.9,22.1,22.4,23,22.6,21.8,20.3,17.1
1961,16.7,18,18.4,19.5,20.8,22.6,22.6,22.8,23,21.6,18.7,18.3
1962,17.6,16.9,17,20,19.2,21.7,22.6,22.4,21.8,21.5,18.2,16.5
1963,16.1,16,18.1,18.4,19.9,21.9,22.1,22.1,22.8,21.2,19.3,17.1
1964,16.9,16.7,18.5,19.4,20.2,21.9,22.1,22.2,22.2,21.6,19.6,18.6
1965,15.9,17,17.1,18,20.1,21.9,22,22.4,22.8,21.8,19.9,17.9
1966,16.7,16.9,18.1,19,21,22.1,22.4,22.9,23,22,19.3,17.5
1967,17.6,16.8,17.5,18,19.9,22,22.8,22.7,22.1,21.6,19.5,18.3
1968,17.3,14.7,16.5,17.8,20,22.2,22.3,22.6,22.1,21.8,19.5,16.9
1969,17.1,15.1,17.1,20.1,21.5,22.7,22.9,22.7,22.1,22.2,19.3,16.8
1970,16,16.2,17.5,18.8,20.9,21.7,22.3,22.2,21.9,21.5,17.9,17.3
1971,15.5,17.7,16.8,17.7,20.6,21.7,22.4,22,22.2,21.5,20,19.6
1972,18.6,17.2,17.6,18.9,20.8,22.4,22.5,22.7,22.1,21.4,20.1,18.7
1973,18,16,19,19.4,21,22.6,22.4,22.6,22.7,22.2,20.3,17.5
1974,18.3,16.4,17.9,19.3,20.9,22,22.1,22.4,22.5,21.8,19.9,17.9
1975,17.9,18.1,18.4,19.3,20.9,22.5,22.4,22.7,22.4,22.1,19.7,17.9
1976,16.8,17.1,18.3,18.2,21.6,22.3,22.7,22.4,22.4,22.1,20.4,19
1977,15.6,17.3,19.1,19.2,21,23.2,23.1,23,23,21.8,20.6,18.8
1978,17.1,15.2,17.9,19.4,22,22.9,23.2,23.3,22.4,22.4,21.2,19.6
1979,18,17.2,18.1,19.5,21.6,22.6,23.6,23.4,23.1,22.3,21.4,19.1
1980,17.4,16.3,19.1,19.7,21.4,23.3,23,23.2,23.1,22.6,21,18.5
1981,15.3,18,16.8,20.2,21.4,23.1,23.1,23.3,22.8,22.8,19.8,19
1982,18,18.4,19.1,19.9,21.3,23.1,23.3,23.2,24,22.2,20.7,19.3
1983,17.8,17.8,18,19.3,21.2,22.5,23.5,23.1,23.5,22.9,20.8,20.2
1984,18.3,18.4,18.9,20.3,21.6,22.4,23.1,22.5,22.3,22.2,19.8,19.3
1985,15.8,17.3,18,18.8,21.1,22.7,22.7,23.1,23,23.1,21.4,18.9
1986,17.2,17.1,18.2,18.5,20.7,23.1,23.7,23.8,23.6,22.7,21.8,20
1987,17.5,18.1,18.7,18.6,21.5,23.2,23.9,23.9,23.7,23.3,21.9,19.6
1988,18.8,18.1,18.6,19.4,21.8,23.2,23.6,23.2,23.8,22.9,21,19.3
1989,18.3,18,18.9,20.4,22.1,23.3,23.3,23.3,23.7,22.5,21.3,18.2
1990,19.5,19.6,19.8,20,22,23.2,23.1,23.2,23.4,23.4,21,19.9
1991,19.3,18,19,20.6,22.5,23.4,24,23.4,23.7,22.8,21.1,19.5
1992,17.9,18.5,18.9,20.3,20.7,23.5,23.7,23.8,23.6,22.3,21.4,19.8
1993,19.6,17.4,18.3,19.7,21.9,23.8,23.5,23.5,23.5,23.1,21.7,19.7
1994,19.5,19.8,19.5,21.1,22.1,24.1,23.9,23.7,23.5,23.3,22,19.8
1995,17.7,17.5,18.3,20.1,22.4,23.3,23.4,23.1,23.9,23.4,20.5,18.6
1996,17.5,16.7,17.3,19.1,21.5,22.4,23.1,22.9,23.4,22.3,20.1,18.3
1997,17.6,19.5,19.5,20.2,22.1,22.8,23,23.5,23.3,22.2,21.9,19.8
1998,19.4,18.4,18.5,20,22,23.5,23.9,24.1,24,23.6,21.6,20.5
1999,19.5,17.1,17.9,20.2,21,23.2,23.3,23.3,23.3,23.3,21.2,19.1
2000,17.5,17.6,18.8,20,21.9,23.3,23.4,23.2,24,22.5,20.4,19.3
2001,15.9,19.3,19.1,20.1,21.1,22.5,23.5,23.9,23.4,23.2,20.6,20.6
2002,18.9,18.4,19.8,20.6,22.2,23.4,23.6,23.4,23.8,23.5,21.2,20
2003,16.4,18.8,20.5,20.4,22.6,23.4,23.9,23.8,24,23.6,21.7,19.1
2004,17.3,18.5,18.9,19.3,21.6,23.9,23.4,23.6,24.2,22.7,21.3,19.1
2005,17.6,16.2,19,19.7,21.7,23.2,24.2,24.1,24.3,23.2,21.5,19.6
2006,18,15.7,18.6,20,21.5,23.7,23.9,24.1,23.6,23.1,20.6,20.9
2007,19.1,17.3,19.4,19.7,20.8,23,24,23.4,23.7,23.6,20.7,20.6
2008,18.1,18.6,19.4,20.4,22.5,23.9,22.6,22.6,24.1,22.2,19.1,19.2
2009,17.1,16.5,17.9,19.7,21.7,23.2,23.6,23.9,23.7,23.7,20.9,21
