1901,19.4,20.1,20.1,19.1,18.1,16.9,16.6,16.4,16.6,17,17.5,18.4
1902,19.4,20,20.1,19.1,18.1,16.9,16.7,16.4,16.6,17,17.6,18.4
1903,19.5,20.2,20.2,19,18,16.8,16.6,16.3,16.5,16.9,17.4,18.2
1904,19.3,19.9,20,19,18,16.9,16.5,16.4,16.5,16.9,17.6,18.4
1905,19.4,20.1,20.1,19,18.1,17,16.6,16.4,16.5,17,17.6,18.3
1906,19.4,20.1,20.1,19.1,18.1,16.8,16.6,16.3,16.5,16.8,17.6,18.2
1907,19.3,19.9,20.2,19,18.1,16.9,16.5,16.3,16.5,16.9,17.6,18.4
1908,19.4,20,20.1,19,18.1,16.9,16.5,16.3,16.5,16.8,17.5,18.3
1909,19.3,20,20.1,18.9,18.1,16.7,16.5,16.3,16.5,16.9,17.5,18.3
1910,19.6,20.2,20.4,18.3,17.2,15.5,15.5,15.3,15.2,15.8,16.8,17.5
1911,19.2,19.8,19.4,18.2,17.2,16.6,16.3,16.1,15.8,16.7,17.8,18.9
1912,20.4,21.2,21.3,20,17.6,16,15.8,15.6,16.3,17,17,18.4
1913,20.1,20,20.6,19.2,17.7,16.3,16.6,16.7,16.7,18,18.6,18.8
1914,20.3,20.7,20.5,19.1,17.4,16.1,16.2,16.4,16.3,17.1,17.5,19
1915,20.4,21.6,20.8,19.8,18,16.5,16.7,16.4,15.9,16.4,17,18.6
1916,19.6,20.7,20.6,19.9,17.9,15.4,15.1,15.2,16.3,16.2,16.5,18.8
1917,20,21.1,21.1,19.9,18.6,17.4,16.2,15.8,16,16.3,17.8,17.8
1918,19.6,19.8,20.3,19.1,15.9,18.6,17.7,18,16.6,16.6,17.1,18.2
1919,20.1,20.9,20.3,19.5,18.7,15.9,15.7,15.7,16.2,16.4,17.3,18
1920,19.5,20.2,20.4,18.7,17.1,15.6,14.9,15.5,15.8,16.7,17,17.3
1921,18.7,19.5,19.8,18.2,17.7,14.6,14.2,15.3,15.1,15.8,17,17.8
1922,19.5,20.1,20.2,19.2,18.1,16.9,16.7,16.3,16.6,17,17.6,18.4
1923,19.4,20.1,20.2,19,18.1,17,16.7,16.4,16.7,17,17.7,18.4
1924,19.6,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.5,17,17.5,18.4
1925,19.4,19.9,20.1,19.1,18.2,17,16.6,16.5,16.5,17.1,17.7,18.5
1926,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1927,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1928,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1929,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1930,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1931,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1932,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1933,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1934,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1935,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1936,19.5,20.1,20.2,19.1,18.1,16.9,16.6,16.4,16.6,17.1,17.7,18.5
1937,19.5,20.1,20.4,19.4,18.3,17.3,17,16.8,16.9,17.2,18,18.7
1938,19.8,20.3,20.4,19.4,18.4,17.1,16.9,16.7,16.9,17.1,17.9,18.7
1939,19.6,20.3,20.4,19.6,18.4,17.4,17,16.4,16.8,17.4,17.8,18.6
1940,19.7,20.6,20.6,19.4,18.5,17.3,17,16.6,17,17.5,18.2,18.6
1941,20.1,20.7,21,19.6,19,17.3,17.1,17,17.3,17.9,18.7,19.3
1942,20.3,21.2,20.9,19.9,18.9,17.9,17.5,17.5,17.3,18,18.7,18.5
1943,22.6,21,23.9,21.5,18.5,17.7,17.8,17.1,17.7,19,18.7,20.4
1944,21.6,21.9,21.2,20.4,19.9,18.3,19.8,18.7,19.3,18.6,18.9,20
1945,21.3,21.8,21.3,20.1,19.1,17.2,17.2,18,18.9,18.9,19.8,19.2
1946,20.4,21.4,21.6,20.2,18.7,17.4,16.7,16.8,17.2,18,18.8,18.5
1947,20.2,20.9,20.9,19.8,18.9,16.9,16.6,16.4,16.6,16.8,17.6,17.8
1948,19.5,20.4,20.1,19.1,19.6,17.5,16.5,16.1,16.6,17.3,17.7,17.8
1949,20,20.7,21.4,18.9,17.3,15.6,15.3,15.6,15.5,15.8,17.3,16.9
1950,18.1,18.9,18.2,16.7,16,14.6,14.8,15.3,15.9,16,16.8,17.5
1951,19,18.3,19,18.8,20,19.7,18.9,18.5,17.6,18,18.6,18.4
1952,20.4,20.3,20,18.4,17.2,15.4,15.9,15.4,16.1,16.9,16.8,18.3
1953,19.5,20.3,21.4,21.7,19.8,18,17.3,18.2,18.5,17.4,17.8,18.2
1954,19,19.8,19,17.4,16.1,14.9,14.1,14.6,14.8,15.3,16.5,17.3
1955,19.2,19.1,18.7,17.5,16.8,16.2,15.5,15.6,15.3,15.6,16.3,17.1
1956,17.5,18.7,19.5,17.8,17.3,16.8,16,16.1,15.7,16.1,16.6,16.6
1957,18.3,22.1,21.9,21.4,22,20,19.3,18.7,17.5,17.9,17.9,19.8
1958,21.5,21.9,21.6,20.3,18,17.8,17.5,16.3,16.6,17.1,16.4,17.6
1959,18.5,20.8,20.9,19.3,18.7,17,15.9,16,15.7,16.8,17.5,18
1960,19.6,19.8,19,18.3,16.8,15.8,15.5,16.1,16.2,16.3,16.1,18.2
1961,20.1,20.3,20.1,17.3,18,16.6,15.9,16.4,15.7,16.5,17.3,18
1962,19,19.9,18.4,20.2,17.1,16.2,15.6,16.4,16.5,16.3,17.6,18
1963,18.7,19,19.7,18,18.7,17.3,17.9,17.4,17.3,17.3,17.4,18.5
1964,19.3,19.6,19.1,18.2,16.4,15.3,15,15.4,15.2,16,16.6,17.7
1965,18.9,19.6,21.4,21,18.5,19.2,18.5,17.9,17.8,17.7,18.5,19.7
1966,20.2,20.5,19.9,18.6,17.9,16.6,16,16,16.3,16.9,17.8,17.6
1967,18.2,19.4,19.7,18.8,18,15.2,15.5,15.7,15.3,15.9,16.4,17.5
1968,19,19.2,18.7,16.8,15.3,14.9,15.3,16.6,17,17.4,18.3,18.6
1969,20.1,20.6,21.1,20.9,20.6,18.6,16.4,16.8,17.5,17.9,18.4,18.7
1970,19.8,20.1,19.8,18.5,17.1,16.1,14.5,15.3,15.8,16.4,17,17.1
1971,17.8,18.7,19.4,18.1,17.2,16.7,16.5,16.1,15.3,16.6,16.7,18.1
1972,19.3,20.8,22.4,20.7,21.1,20.4,19.7,19.9,18.5,18.8,19.4,21.7
1973,22.6,22.3,23.2,19,17.2,13.8,14.7,15.1,15.6,15.8,16.4,16.7
1974,18.3,19,18.8,18.3,18.1,16.7,16.1,15.9,15.9,16,16.8,16.8
1975,18.3,18.9,19.8,18.9,17.6,16.2,15.4,15.3,15.2,16,16.1,17.2
1976,20.5,20.6,20,19.4,20.1,18.7,19.3,18.1,17.6,17.7,19.7,20.6
1977,20.8,20.9,20.8,19.4,18.8,17.6,17.3,16.6,16.9,17,18,18.7
1978,19,20.4,20.2,18.9,17.5,16.1,16.3,16.7,16.5,17,18.2,17.9
1979,20.4,19.9,20.9,19.4,17.8,16.8,16.9,17.7,17.4,16.9,17.9,17.8
1980,20,20.1,20.8,20.3,18.5,17.2,16.6,16,16.2,16.2,17.5,17.8
1981,18,20.2,19.1,17.8,18.1,16.7,15.7,16.1,16.1,17.1,17.4,17.6
1982,20,19.3,20.7,18.5,18.6,17.3,17.1,17.4,17.7,19.1,18.1,22.3
1983,20.4,23.4,23.5,19.9,18.8,22.1,19.4,17.7,18.4,19,18.3,18.7
1984,20.1,19.8,19.6,18.5,17.5,16.6,16.6,16.7,17.1,17.6,17.5,18.3
1985,19.3,20,20.1,17.7,16,16.1,15.3,15.6,16.1,17.1,18,18.3
1986,19.5,20.2,18.8,18.4,17.2,15.5,16.3,17,17.2,17,18.3,19.9
1987,21.6,22.7,22.7,21.6,19.4,18.9,18.1,18,17.7,18.4,18.8,19.3
1988,20.3,20.2,19.6,18.5,17.8,15.7,14.8,14,15.8,16,17.8,17.7
1989,18.9,20.9,19.8,17.9,16.5,16.4,16.2,16.7,16.7,16.9,17.6,18
1990,19.3,20.2,20.6,19,19.3,16.6,16.3,16.2,16.3,17.3,18.4,18
1991,19.5,19.6,19.8,18.7,18.8,18,16.7,17.1,17.4,17.7,18.4,20.3
1992,21.8,22.4,23.6,22.9,21.4,18.7,16.7,17.2,16.9,17.4,17.5,18.2
1993,19.3,21.6,21,20,20.4,19.7,18,17.7,17.4,17.6,17.7,18.3
1994,19.6,20,20,19.5,18.6,17,16.3,16.8,17.7,18.6,19.1,20.5
1995,22.1,21.5,20.9,18.6,18.3,17.8,16.6,16.6,17.4,17.3,17.1,17.5
1996,18.4,18.8,19.4,17.6,16.4,15.2,14.8,15.4,15.5,16.3,17,17.2
1997,20,19.3,20.8,20.5,21.5,19.5,18.5,17.7,18,19.9,18.9,20.3
1998,20.3,20.6,23.7,22.4,21.2,18.2,17.4,16.8,16.7,17.2,17.6,17.9
1999,18.5,20.5,19.2,17.6,17.2,16.1,15.5,16.4,16,16.8,17.2,17.7
2000,18.9,20.1,19.6,19.7,17.8,17.6,17.1,17.3,17,17.7,17.8,18.7
2001,19.3,20.7,21.3,19.5,17.1,16,16.4,16.3,16.1,16.8,17.7,18.5
2002,19.3,21.7,22.5,21.1,19.6,17.2,16.7,17.9,17.3,18.6,19.2,20.2
2003,21.8,21.7,21,18.5,17.5,17.2,17.2,15.9,16.6,18.1,18.9,19.9
2004,20.9,21.4,21,20,17.5,16.5,16.6,16.9,17.7,18.3,19.3,19.6
2005,21.2,20.6,21.2,19.9,18.9,17.6,16.8,17.6,16.9,17.3,17,16.4
2006,20.5,20,21.8,18.6,18,17.8,18.8,19.5,16.8,17.1,20,19.9
2007,22.3,20.4,20.9,19.3,16.8,14.9,15.6,15.7,15.4,16,17,17.4
2008,20,21.4,22.1,18.2,17.5,18,18.3,18.4,17.7,17.2,17.5,17.9
2009,19.7,20,20.1,19.7,17.5,17.9,17.4,17.6,17.4,17,18.1,19.6
