1901,18.5,18.3,18.6,18.1,16.2,14.8,13,13,14.3,15.1,15.2,16.6
1902,18.8,19.3,18.7,16.8,15,14.5,12.7,11.9,12.5,13.7,15.2,17.4
1903,18.4,19.6,18.9,17.1,15.9,14.7,13.5,12.8,13.2,15.2,15.9,17.9
1904,18.7,18.8,18.7,17.4,15.3,13.9,13.5,12.6,12.6,13.4,14.9,15.8
1905,18.5,18.9,18.5,16.6,15.8,14.6,12.4,12.7,12.9,13.5,15.4,17.7
1906,18.3,17.9,18.2,17.2,15.6,14.3,13.2,12.8,13.6,14.5,16,17.5
1907,19.7,19.1,20.2,18,15.5,14.9,13.1,12.6,12.6,14.7,16.6,18.5
1908,19.1,19.3,19.2,17.5,16.5,14.3,12.6,12.8,13.5,13.4,15.8,16.8
1909,18.7,19.5,18.9,17.2,16.1,15.5,14.4,13.4,13.9,14.5,16.5,18.1
1910,19.9,20.7,20.4,17.7,16.6,15.5,14,13.5,13.8,15.4,16.6,17.9
1911,19.1,19.6,19.5,17.8,16.1,14.7,13.3,13.1,13.3,14.5,15.9,17.3
1912,18.6,19,18.7,17.4,15.3,14.5,13.1,12.8,13.4,14.4,16.1,17.6
1913,19,19.3,19.4,17.3,15.7,14.1,13.3,13.2,13.5,14.8,15.9,16.8
1914,19.5,19.1,19.2,17.7,15.6,14.3,13.1,12.9,13.4,14.5,16.3,17.4
1915,20.7,21.5,19.7,18.4,16.4,15.3,14.7,14.4,14.1,16.1,17.7,18.9
1916,19.4,20.8,20.5,19,16.5,16.1,14.4,13.9,14.6,16.4,17.4,18.9
1917,19.7,19.7,18.5,18.4,16.3,14.8,13.8,13.8,15,16.1,16.9,17.8
1918,19.7,19.6,18.9,18.1,15.7,14.9,12.7,12.9,13.6,15.7,16.9,17.2
1919,19,19.9,19.1,17.5,16.1,14.2,13.5,13.1,13.8,15.4,15.6,17.3
1920,19.6,19.7,19.3,17.6,15.5,14.6,14.1,13.2,13.4,15.9,17.4,17.9
1921,19.7,19.7,19.3,17.8,16.4,15.2,14.3,13.8,14,15.1,16,18.4
1922,19.6,18.9,19.3,17.5,16,15,13.9,14.1,13.3,15.6,16.6,18.5
1923,18.8,19,18.8,16.9,16.1,14.6,13.1,12.5,13.4,14.5,16,18.3
1924,18.9,19.4,19.3,18.1,15.8,14.5,13.3,13.2,13.5,14.7,16,16.9
1925,18.7,19,18.5,17.2,15.8,14.6,13.1,12.8,13,14.4,15.7,17.4
1926,18.9,19.2,19.2,17.7,16.1,14.5,13.3,13.1,12.9,14.9,15.6,16.9
1927,20,19.6,19.6,18.6,16.5,13.8,14.2,14,14.1,14.2,15.9,17.7
1928,18.6,19.8,19.5,18.2,15.9,14.5,13.7,13.3,13.7,14.9,16.2,17.3
1929,20.7,20.6,20.6,17.8,15.4,15.5,13.2,13.5,13.3,15.7,16.6,18.7
1930,20,19,18.4,17.6,15.5,15.3,13.4,13.7,13,14.9,16.2,17.9
1931,19.1,19.8,19.3,18.7,16.5,14.5,14.5,13.6,13.5,15.1,18,18.9
1932,19.4,19.7,19.7,19.2,15.4,14.6,13.3,13.3,14.4,15.9,16.9,18.3
1933,20.6,20.3,20.6,18.3,16.5,14.7,14.1,13.3,13.9,15.5,16.3,19
1934,18.3,18.9,19.2,18.2,15.5,14.8,13,13.5,13.8,14.8,16.8,19
1935,21,21,19.9,17.9,15.6,14.6,13.5,13.2,13.3,15.2,14.5,18.6
1936,20.1,19.6,18.8,17.7,16,15,13,13.2,12.9,15.4,16,17.8
1937,19.2,19.3,19.2,17,15.7,14.5,12.6,13.1,13.1,15.1,16.8,18.9
1938,19.8,20.9,20.4,18.1,16.6,15.1,13.6,13.3,13.6,15,17.8,18.3
1939,19.6,19,20,18.9,16.5,15.9,12.9,12.6,12.4,13.2,14.9,16
1940,17.6,17.8,17.6,16,15.5,13.2,11.9,12.1,12.4,14,15.2,16.8
1941,18.6,18.6,18.1,16.1,14.7,13.3,12.5,12.3,13.3,13.3,14.7,16.6
1942,17.2,17.9,19.8,17.7,15.4,14.9,13.9,13.2,13.4,15.6,15.4,16.9
1943,18.4,18.7,17.9,17,14.6,14,12.7,12.5,12.9,14.2,15.6,18.5
1944,20,19.3,18.6,17.4,15.7,13.5,13.7,13.2,12.7,14.3,15.6,17.8
1945,19,18.6,18.8,17.6,14.8,14.3,13.2,13.8,13.1,13.6,15.8,16.8
1946,18.6,19.6,19.4,18.1,16,14.8,13,12.9,13.4,13.3,15,16.7
1947,17.6,17.9,18.4,16.8,15.4,14.3,12.2,12.7,13.4,14.2,15.4,17.1
1948,19.6,18.7,19.9,18,15.4,13.8,13.8,13,14.3,14.8,15.7,17.2
1949,18.1,19.7,20.2,16.2,15.1,14.6,14,12.3,13.1,15.1,15.6,17.4
1950,19.2,19.4,18.9,17.5,17.2,16,14,13.6,13.6,14.6,16.4,18.7
1951,19.3,18.4,18.8,17.2,14.5,13.6,12.5,12.8,12.6,14.8,15.5,16.8
1952,18.4,18.7,19.3,17.9,16.2,15.1,12.9,12.9,12.5,15.1,15.3,16.1
1953,16.7,18.8,18.5,16.7,16.2,14.8,12.3,13.5,13,14.7,17.2,19.5
1954,20.5,20.3,19.3,17.5,16.2,15,14.2,12.7,13.7,14.4,17,18.6
1955,18.8,20.9,20.6,19.1,17.9,15.6,12.6,13.6,14.6,15.5,16.2,18.3
1956,20.2,20.6,20,18.5,16.6,15.4,12.6,12.5,12.8,14.3,15.5,18.5
1957,19.3,20,19,17.1,14.6,13,12.6,13.7,12.1,13.6,16.1,16.8
1958,19.3,20.7,20.5,16.9,15.7,15.5,13,14.1,13.3,14.2,15.2,17.9
1959,20.4,19.2,18.4,17,14.5,13.9,13.5,13.3,14,14.1,16.9,19.2
1960,19.2,19.4,18.5,16.4,16.8,16.1,13.3,12.6,13.8,14.3,15.2,16.6
1961,17.9,19,18.7,17.8,14.9,14.7,13.8,13.1,12.7,15.2,16.8,18.4
1962,20.7,20.1,19.4,18,16.9,14.6,13.4,13.2,13.6,15.1,15.4,17.5
1963,19.5,20.3,19.7,17.2,16.4,14.5,13.5,13.1,13.4,14.4,15.2,17.1
1964,19.3,19.4,19.8,18.2,15.3,15.3,14.1,13.7,13.1,14.2,15.2,17
1965,18.3,18.4,17.7,17.5,14.6,13.9,12.5,12.5,13.5,14.1,15.7,16.9
1966,18.8,20.5,19.3,17.1,14.6,14.1,12.9,12.8,13.3,13.9,15.2,17
1967,18.3,19.6,19.8,18.1,16.1,15.2,14.1,14.1,13.2,15.1,16.1,17.6
1968,19.2,19,20.2,17.8,16.5,13.7,12.6,13.1,12.2,14.2,16.1,16.6
1969,18.3,18.8,18.2,16.9,15.9,14.5,12.5,13.1,13.5,13.7,16.2,17.9
1970,20.3,19.3,19.6,17.7,15.6,14.7,13.3,14.2,13.8,15.4,16.5,17.9
1971,20.1,20.3,19,17.1,16.1,14.9,13.2,14,14.4,15.7,15.8,17.4
1972,18.5,19.1,20.6,17.7,15.7,14,12.9,12.8,13.6,15.9,17.4,17.2
1973,19.6,19.3,19.4,17.6,16.8,16.1,14.3,14.6,14.5,15.8,17.8,18.6
1974,19.7,21.1,19.8,18.1,16.5,15.2,14.2,13.2,13.6,14.6,16.4,17.9
1975,18.8,20.2,20.6,18.3,16.3,14.9,13.3,14,14.2,15.5,16.5,18.8
1976,20.2,18.6,19.9,17.6,15.1,14.1,12.8,13.5,12.7,14.3,15.5,17.6
1977,17.9,19,19.3,17,15.9,13.8,13.1,13.1,11.7,14.2,16.6,17
1978,18.8,19.2,19.2,17.7,15.7,15.1,13.5,13.3,13.5,13.7,16.2,17.4
1979,19.4,18.7,19.7,17.6,16.1,15.4,13.5,12.7,13.4,14.2,16.5,18.2
1980,19.9,19.7,17.8,17.1,16.1,14.8,13.5,12.7,13.7,14.8,15.1,16.7
1981,19,20.9,20.5,17.9,16.4,15.2,13.5,12.7,12.8,14,15,19.1
1982,19.5,19.7,18.9,16.5,15.1,13.7,12.7,12.2,13.3,13.7,15.8,17.1
1983,18.2,18.3,19.6,18.9,16.6,15.1,12.7,13.3,14.4,15.3,16.3,17.6
1984,18.4,18.6,19.4,17.1,16.4,15.3,14.4,14.3,13.8,14.5,17.7,18.8
1985,19.7,19.7,19.2,18.7,15.7,15,13.4,13.2,14.1,14.9,16.1,18.3
1986,20.6,19.5,19.3,18.1,17,14.3,13.5,13.3,12.7,15.1,16.5,17
1987,18.8,19,18.2,17.5,16.7,14.5,13.1,14.2,14,15.6,15.8,17.5
1988,19.2,19.2,19.2,18.1,17.1,16,14.4,13.9,14.9,15.9,17.7,18.8
1989,19.9,19.8,19.4,18.8,16.1,15.8,13.7,13.2,13.7,15.3,16.6,17.4
1990,19.7,20.7,20.6,18.4,16.5,14.6,13.8,13.9,13.1,15.1,16.5,18.7
1991,19.8,19.6,18.6,16.8,15.1,14.3,13.9,13.6,14.1,14.7,14.7,17.5
1992,19.2,20.1,19,16.8,15.5,14.6,13.2,13,13.4,13.6,16,17.7
1993,18.9,18.4,18.7,16.3,15.7,14,14.8,13.6,13.7,14.8,15.4,17
1994,20.6,19.3,18.4,17,15.9,14.2,12.6,12.9,13,14.5,16.5,17.7
1995,19.7,19.4,19.2,18.4,16.5,14,13.4,12.5,14.6,15.5,17.7,19
1996,20.3,21.4,19.5,18.6,16.5,14.5,14.4,14.6,15.1,15.7,16.1,18.4
1997,18.5,18.5,18.2,15.9,16,14.2,12.7,12.1,13.8,14,16.2,19.3
1998,19.3,20.4,20.2,18.5,17.3,15.9,14.9,14.1,14.6,16.1,16.8,17.8
1999,19.9,21,20.2,18,17.6,14.9,14.5,12.9,14.1,15.8,15.6,16.8
2000,18.3,18.4,18.2,17.2,16.2,14.1,14.3,13.4,13.9,14.9,15.7,17.8
2001,18.8,19.5,20,18.2,16.1,13.9,13.8,13.6,14,15.6,16.7,18.5
2002,19.3,19.4,18.8,17.1,15.5,14.8,13.2,13,13.4,14.2,14.8,17.1
2003,18.4,18.8,18.6,17.4,16.3,15.6,13.3,12.1,13.4,14.5,15.3,17.9
2004,19.3,20.1,18.9,16.3,16.2,14.8,13.1,12.4,13.1,15,15.7,17.4
2005,18.9,19.3,18.8,17.3,16.3,14.5,13.9,13.1,13.6,15,15.5,18.3
2006,19,19,18.6,18,15.6,13.4,12.9,12.7,13.2,13.9,16,15.8
2007,17.9,18.7,19.2,16.9,16.4,15.5,13.9,13.8,14,15,15.8,17.9
2008,19.8,19.4,19.2,17.7,14.9,14.7,14,13.2,13.6,14.2,16,17.3
2009,18.8,20.7,19.5,17.9,15.3,14.8,13.5,14,14.6,14.3,15.7,17.5
