1901,19,19.1,18.3,15.9,14,11.3,12.6,12.3,13.6,16.6,16.5,17.6
1902,19.4,20.5,19.5,17.9,15.5,13.8,13.6,11.1,14.7,15.5,18.8,19.5
1903,18.3,19.9,20.5,16.3,13.4,13.4,11.2,12.8,13.9,15.1,17.4,19.5
1904,19.2,18.9,19.8,16.6,12.6,11,11.9,12.7,14.5,15.3,17.3,18.2
1905,18.9,19.9,18.1,17.1,15,12.4,11.8,12.8,14.5,17.9,16.9,19.1
1906,19.1,18.5,18.5,16.9,15.5,13.3,12.3,13.7,13.5,16.6,17.1,18.7
1907,19,19.4,19.8,17.2,12.4,12.4,10.7,11.7,15,15.2,16.9,19.5
1908,19.2,18.7,18.2,16.8,14,12.8,12.6,11.2,13.7,15.3,17.3,19
1909,19.9,20.6,18.1,16.1,12.6,11.9,12.9,12.8,13.7,14.7,17.1,17
1910,20.4,19.4,19.5,18.1,12.4,13.5,10.7,13.3,13.5,14,16.1,17.5
1911,20.4,20.3,17.7,16.7,15,11.6,10.7,11.8,13.7,14.8,18.1,18.8
1912,19.7,20.9,18.3,17,16.2,13.3,10.4,12.3,11.5,14.9,18.1,18.4
1913,19.1,20,19.7,17.2,15.1,12.5,12.5,13.5,14.5,16.6,17.4,18.4
1914,20.8,18.8,19.1,17.2,13.8,14.4,14.3,13.5,14.9,17,18,18.1
1915,20.7,21.1,18.8,19.3,16.8,11.5,11,13.2,14.6,15.4,16.1,17.3
1916,20,18.5,17.2,16.7,14.1,12.9,11.6,12.4,15.4,14.8,17.4,18
1917,19.2,19,18.7,15.9,11.1,10.8,9.9,11,13.3,14.3,14.7,16.3
1918,19.5,18.5,17.5,16.5,14,12.3,9.8,11.2,13.2,15.3,15.6,16.4
1919,18.1,18.1,18.4,17.1,16,13.8,12.7,11.9,11.7,14.8,15.7,17.2
1920,20.1,19.7,18.3,17.6,13.6,12.4,12.7,10.4,12.6,16.2,16.6,18.5
1921,19.2,19.1,18.9,15.9,14.7,11,9.7,14.4,13.1,14.9,14.9,18.8
1922,19.3,19,19.3,17,14.4,12.4,11.7,13.2,14,14.7,16,18.3
1923,19,19,19.3,17.9,14.2,12.3,10.7,12.7,13.3,14.5,15.9,19
1924,18.4,18.6,19.5,16.8,14.6,12.7,11.2,11.1,13.6,13.6,15.6,17.5
1925,20.2,20.3,18.8,18.8,14.2,10.8,9.3,13.6,14,14.9,17.2,18.3
1926,19.2,17.7,19.1,17.1,13.3,13.2,10.6,13.1,15.1,15.7,17,18.6
1927,18.9,18.8,19.2,17.5,13.1,12.3,10.3,12.3,14.2,14.7,17.3,17.5
1928,19.2,20.4,20.2,18.9,14.3,12.9,12.4,12.5,15,15.5,17.2,18.7
1929,20,19.9,19,15.2,13.3,12.7,11.7,12.4,15.2,16.6,15.9,19
1930,19.3,19.1,18.8,16.6,15.3,14.4,12.2,13.6,13,15.6,16.5,18.3
1931,20.6,19,19.4,17.3,14.4,11.9,12.8,12.8,13.3,15.4,16.2,18.9
1932,18.9,20.8,20.3,18.4,14.8,12.9,12.9,12.4,15.6,16.8,17.8,18.4
1933,19.3,19.9,18,15.9,14.3,10.8,10.9,12.5,14.3,15.1,15.5,17.8
1934,19.4,19.6,19.4,17.6,14.4,13,11.8,13,14.3,15.4,17.2,18.3
1935,18.8,19.2,18.8,15.2,12.9,12.9,12.1,12.1,13.1,15.3,15.8,18.3
1936,19.2,17.8,18,17.3,16.4,13.6,12.6,11.7,13.4,15.4,16,18
1937,17.7,18.9,19.4,15.9,12.7,12,12.9,13.1,13.8,14.4,15.3,16.4
1938,20.9,18.7,19.2,17,13.3,11.7,11.7,11.4,14.2,14.8,16.1,18
1939,19,19.7,19.1,16.2,15.2,12.5,9.7,13.9,12.6,16,16.7,17.7
1940,20.1,18,18.8,17.4,15.4,12.8,14,12.6,13.4,14.7,16,19.9
1941,21.4,21.1,18.7,20,15,11.6,11.2,13.8,11.6,16,16.5,18.2
1942,20.4,19.7,19.4,16.8,14.5,12.2,9.2,12.9,13.3,15.6,17,17
1943,18.4,19,19.2,16.2,15.8,14.3,12,11.6,13,16.3,17.3,17.7
1944,19.8,19.6,20.1,16.3,14.2,12.1,11.1,14.4,15.7,18.8,16.5,18.7
1945,19.6,20,19.1,16.8,12.4,11.2,12.6,15.2,13.6,16.2,17.2,17.8
1946,19.2,20.3,18.4,15.9,15.1,11.7,10.5,13.3,16.3,16.4,17.2,17.7
1947,20.2,20.3,18.3,16.1,15.3,13.9,10.6,12.2,13.4,13.4,15.7,16.7
1948,20.1,19.7,18.1,16.4,14.4,11.8,12.7,11,14.8,14.9,16.7,17.8
1949,19.7,19,21.2,16.3,14.8,14.8,12.9,13.8,14.2,15.4,16.6,18
1950,20.1,19.7,19.4,18.1,15.5,13.6,12.8,15.4,15,15.7,16.8,18.2
1951,18.8,19.6,19.3,14.7,14.2,12.3,11.6,11.8,14.9,15.4,17.4,16.9
1952,20.2,19.4,19.5,16.3,15,13.1,12.2,14.6,13.7,16,17.5,19.3
1953,20.2,19.4,19.8,17.4,15.4,13,10.9,13.2,15.8,16,16.8,18.2
1954,20.6,20.4,19.5,17.2,14.7,14.4,12.4,14.8,15.1,15.7,16.7,17.7
1955,19.8,20.4,19,17.1,14.6,12.8,12,12.9,15.2,15.4,16.2,19.3
1956,22.2,20.6,19.6,17.3,14.2,12.9,12.5,12.3,15.5,16.2,16.2,18.3
1957,20.5,19.5,20.3,17.5,15.2,13.3,12.2,13.8,14.8,18.2,17.7,20.1
1958,21.8,21.3,20,17.4,15.7,14.4,14.5,15.4,15.2,17.2,18.7,20
1959,21.4,21.4,20.1,20.4,16.3,13.6,14.4,14.2,17.1,17.5,18.2,19.9
1960,20.4,19.7,20.1,17.4,13.5,13,12.9,14.7,15.6,18.3,18.2,18.7
1961,20.8,20.7,20.3,18.9,15.6,14.8,13.4,14.7,17.6,18.6,19,19
1962,19.8,19.6,20.2,17.4,14.1,12.1,11.1,12.9,15,15.4,17.3,18.8
1963,21.1,20.4,21.6,17.8,14.8,12.6,13,14.2,17.5,17.4,18.7,18.8
1964,20.1,20.2,19.6,18.7,15.2,12.6,10.5,14.5,15.1,15.9,16.2,17.8
1965,19.2,20.1,18.5,18,15.1,15.6,12.5,14.4,16.4,16.4,18.5,19.9
1966,21,21.3,19.8,18.3,16,14.2,14.1,13.1,14,16.2,17.8,19.5
1967,19.9,20.5,19.6,18,16.4,13.9,13.5,15.1,15.6,18.6,17.6,17.6
1968,19.9,18.5,19.8,15.4,12.4,12.5,12.2,12.9,13.9,16.6,19.1,19
1969,21,21,20.3,17.4,15.5,14.3,12.5,14,15.7,15.1,18.4,18
1970,20.2,20.3,20.6,18.2,17.1,15.3,13,13.5,14.9,16.3,16.4,19.7
1971,21.4,21.3,20.8,17.5,14.9,12.7,12.5,14.4,15.1,15.9,16.7,18.6
1972,20.1,19.3,20.9,16,16.4,15.5,12.9,14.6,15.3,16.7,18.4,19.8
1973,21.4,22,20.1,21,16,15.2,14.3,13.6,14.9,16,14.8,19.4
1974,20,21.3,20.7,17.4,15.4,12.5,12.6,13.6,14.7,15.1,16.7,17.9
1975,19.3,20.2,20.5,17.1,14.5,13.8,10.9,15.2,15.8,15.8,16.9,19
1976,21.4,19.4,18.3,17.4,14.6,13,12.1,13.2,14.9,15.4,17.9,19.7
1977,21.3,22.1,21.3,17.8,15.2,14.4,16,14.1,16.6,18.2,18.5,18.9
1978,21.4,20.1,21.2,16.4,13.3,13.2,14.2,17,14.8,17.4,17.4,18.7
1979,18.2,20.3,19,16.9,15,12.2,11.9,15.3,14.1,16.8,17.6,19.4
1980,19.9,20.1,20.8,18.8,16.5,12,13.7,13.5,13.4,17.3,17.1,20.7
1981,20.2,20.8,19.3,17.9,16,12.5,11.8,14.3,16.2,16,18.9,19.2
1982,19.3,20.5,19.9,16.9,14.8,15.2,13.8,15.3,15.5,16.7,19.7,19
1983,21.6,21.3,19.9,18.8,17,15.5,14.2,14.2,13.8,17,19.3,19.9
1984,22.7,23.2,20.7,18,18,15,14.2,13.2,14.9,18.1,18,18.9
1985,19.9,21.4,21.4,19.4,15.3,13.1,12.2,15.3,15.2,17.8,18.8,19.9
1986,21.8,20.9,20.8,19.7,16.8,14.8,13.1,15.4,15.4,17,19.4,20
1987,21.7,20.9,20.3,20.1,14.4,12.2,15,13.2,14,17.5,19.4,20.3
1988,22.3,20.5,21.4,18.6,16.2,13,11.1,13.6,16.8,16.6,17.4,20.3
1989,21,21.6,21.3,19.7,15.7,13.8,11.9,14.2,15.4,15.5,17.9,20.1
1990,22.1,21.5,21.7,20.9,15.6,13.4,12.6,13.6,14,18.9,21.2,19.4
1991,20.8,20.4,20.5,18.6,16.6,14.7,13.2,14.4,15.2,17,19.3,20.7
1992,20.9,21.6,20.9,18.9,17,15.7,12.8,13.4,14.9,16.9,18.2,19.9
1993,21.7,19.2,20.3,18.6,16.1,13.5,14.1,13,14.1,18.3,18.6,18.7
1994,20.3,21.4,19.3,18.4,17.6,13.1,12.9,14.1,14.1,18.5,19.3,20.9
1995,21.5,21.5,21.1,19.4,16.7,14.2,15.2,16.2,15,16.5,19.1,20
1996,22,21.5,21.2,19.5,16.4,14.3,12.1,14.2,15.4,18.1,18.9,21.2
1997,20.8,21.4,20.1,18.4,15.8,13.9,13.8,15.2,16.8,17.8,19.6,21.7
1998,22.6,22,21.5,19.2,15.6,13.3,13.8,16.3,16.1,17,18.2,20.5
1999,22,21.6,21.9,17.5,15.2,13.7,13.8,14.2,15.9,15.6,16.9,20.2
2000,21.2,20.5,20.2,18.8,15.7,15.4,11.8,13.5,15.3,19.3,19.1,20.5
2001,22.4,22.2,22.3,20.6,15.9,14.9,13.9,15.8,15.9,18.1,19.3,19.7
2002,21.3,20.1,22.8,20.7,17.5,16.3,13.7,16.7,15.1,20.5,19.8,21
2003,21.6,23.4,21.3,19.5,16,16.2,14.6,13.3,15.5,17.8,19,20.3
2004,20.2,19.9,20.4,19.8,15,14.3,13.1,14.5,18.1,17,18.7,19.5
2005,21.2,20.6,21.3,20.4,17.4,16.4,13.9,16.2,15.1,18.4,18.6,19.1
2006,22.3,21.6,21.6,18.8,14.8,14.7,15.1,15.6,15.6,17.9,18.5,20.9
2007,21.5,21.8,22.7,20.2,15.4,15.4,13,14.9,17.6,19,18.2,20.6
2008,20.4,20.8,20.8,19,15.5,14,14.5,15.8,15.1,18.1,18.4,19.3
2009,20.9,21.8,22.1,18.9,17.1,13.3,13.4,15.1,16.8,17.5,21.6,20.9
