1901,17.6,17.7,16.9,17.1,16.9,15.7,15.2,16,16.8,16.7,16.9,16.5
1902,17.4,17.2,17,17,16.9,15.6,15.6,15.8,16.8,16.7,17.2,16.8
1903,17.8,18.1,17,16.7,16.4,15.4,15.1,15.4,16.6,16.4,16.7,15.9
1904,17,17,16.5,16.6,16.3,15.7,14.9,15.7,16.4,16.4,17.2,16.5
1905,17.4,17.7,16.6,16.9,16.8,16,15.4,15.7,16.4,16.7,17.2,16.4
1906,17.5,17.6,16.9,17.1,16.7,15.3,15.1,15.6,16.7,16.2,17.2,16.1
1907,17.3,16.8,17.1,16.6,16.6,15.6,15,15.6,16.6,16.5,17.1,16.6
1908,17.6,17.2,17,17,16.8,15.9,15,15.4,16.3,16.1,16.8,16.3
1909,17.2,17,16.9,16.5,16.8,15.1,14.9,15.3,16.6,16.5,16.8,16.2
1910,17.5,17.4,16.9,16.4,15.8,14.5,14.2,14.8,15.4,15.7,16.6,15.8
1911,17.3,17.3,16.1,16.4,15.9,15.4,15,15.6,16.2,16.6,17.5,17.4
1912,19,18.9,18.2,18,16.5,15,14.5,15.1,16.5,16.7,16.6,16.7
1913,18.2,17.5,17.4,17,16.3,15.1,15.3,15.9,16.7,17.7,18.3,17.2
1914,18.4,18.3,17.4,17.1,16.3,15.1,15,15.9,16.5,16.8,17.2,17.5
1915,18.8,19,18,18,16.8,15.1,15.5,15.9,15.9,16.2,16.6,17.3
1916,18.1,18.5,17.8,18.3,16.5,13.6,13.3,14.2,16.5,15.9,16,17.5
1917,18.6,18.9,18.3,18.3,17.4,16.4,14.8,15,15.9,16,17.7,16
1918,17.9,17.2,17.4,17.2,13.7,18,16.4,18.2,16.9,16.5,16.9,16.7
1919,18.5,18.5,17.4,17.6,17.4,15,14.5,15.3,16.5,16.5,17.1,16.4
1920,17.7,17.5,17.2,16.8,15.8,14.6,14,15,16,16.5,16.9,15.9
1921,16.7,16.7,16.5,15.9,16.1,12.5,11.8,14.3,14.7,15.4,16.7,16.1
1922,17.9,17.7,17.2,17.5,16.9,15.7,15.6,15.5,16.8,16.7,17.5,16.5
1923,17.4,17.5,17.1,16.8,16.9,15.9,15.5,16,17.1,16.7,17.7,16.8
1924,18.4,17.7,17.2,17.3,16.8,15.7,15.3,15.7,16.5,16.7,17.1,16.5
1925,17.4,16.9,16.7,17.1,17.2,16,15.2,16.4,16.6,17.2,17.6,17.2
1926,18.4,18,17.2,17.2,16.9,16,15.3,16,17.1,17.6,18.2,17.5
1927,18.3,17.9,17.5,17.2,16.8,15.8,15.3,16,17.2,17.6,18.1,17.6
1928,18.3,18.2,17.2,17.2,17.2,15.9,15.3,16,17.1,17.3,18.2,17.5
1929,18.4,18,17.5,17.2,17,15.9,15.3,15.9,17,17.3,18,17.5
1930,18.1,17.8,17.2,17.2,16.8,15.9,15.3,15.8,16.7,17.4,17.9,17.6
1931,18,17.6,17.2,17.3,16.8,15.7,15.2,15.9,17,17.5,18.2,17.3
1932,18.2,17.8,17.3,17.3,16.9,15.9,15.6,16.1,17,17.1,17.5,16.9
1933,17.8,17.9,17.3,17.2,16.8,15.7,15.2,15.8,17,17.1,17.5,16.9
1934,17.9,17.4,17.3,17.2,16.9,15.9,15.3,15.7,16.7,17.4,17.8,17.4
1935,18.1,17.9,17.5,17.1,16.5,15.8,15.3,15.7,17,17,17.7,17.1
1936,17.9,18.1,17.2,17.2,17,15.7,15.3,15.8,17,17.3,17.8,17.2
1937,18.2,17.7,17.7,18,17.5,16.8,16.5,17.1,17.7,17.5,18.6,17.8
1938,18.6,18.1,17.7,18.1,17.5,16.3,16.1,16.8,17.8,17.3,18.4,17.6
1939,18.3,18.1,17.8,18.7,17.7,17.2,16.5,16,17.4,18,18,17.3
1940,18.4,18.9,18.2,18,17.9,16.8,16.4,16.6,18.1,18.4,19,17.5
1941,19,18.7,18.8,18.2,18.5,16.4,16.4,17.1,18.3,18.9,19.7,18.7
1942,19.5,19.7,18.6,18.7,18.2,17.6,17.1,18,18.2,19,19.6,17
1943,20.9,18.9,20.1,19.7,17.5,16.9,17.3,16.9,18.3,19,19.6,18.8
1944,20,18.3,17.8,19.3,19.3,18.1,17.4,17.5,19.6,18.9,19,18.9
1945,20,19.3,18.9,19.1,18.7,15.8,16.9,17.9,19.2,18.6,19.7,18.3
1946,19.5,19.7,18.9,17.7,17.3,16.9,15.1,16.8,18,18.4,17.7,17.1
1947,19.3,19.1,18.6,18.6,18.3,15.9,15.2,15.8,17,16.8,17.4,15.9
1948,17.7,17.8,16.9,17.1,17.4,15.8,15.1,15.4,16.1,17.3,17.6,16.3
1949,19.2,17.6,17.6,16.4,15.6,14.5,14.4,14.3,15.6,15.9,17,16.6
1950,17.1,16.6,16,16.6,15.3,14.4,14.2,15,16.3,16.7,17.3,16
1951,17.4,16.3,15.8,15.9,16.1,15.5,16,15.9,17,16.8,17.1,16.8
1952,17.9,17.3,16.9,16.2,16.3,13.9,14.5,14.9,15.8,16.7,16.6,16.5
1953,17.5,17.3,17,17.3,16.6,15.1,14.5,15.9,17.4,16.7,17.3,16.3
1954,17.2,17,16.6,16.6,15.5,14.9,14.1,15.5,16.5,16,17.1,16.2
1955,17.6,17.3,16.5,16.4,15.9,15.4,14.3,15,15.9,17,17.2,16.3
1956,17.2,16.4,16.6,16.1,15.7,14.9,14.6,15.5,16.4,16.2,16.9,16.5
1957,17.3,17.4,17.2,17,17.7,16.3,15.3,16.1,16.6,17.1,17.7,17.4
1958,18.2,18.1,16.6,17.3,16.1,15.7,16.2,15.4,17.4,17.2,16.9,17.2
1959,17.1,17.2,17.2,17.3,16.2,16.2,15.2,15.8,17.3,16.9,18.4,16.8
1960,19.1,18.3,17.7,17,16.4,16.5,16.3,16.7,17.2,17.7,17.8,16.5
1961,17.8,17.7,17.4,17.3,17.4,16.1,16.2,15.7,16.7,17.7,16.9,16.5
1962,17.5,17.3,16.8,17.2,17.3,16.1,15.8,16.4,17.2,17.2,19.3,17.1
1963,17.4,16.6,17.2,16.9,17.5,15.7,16.5,17.4,17.1,17,17.8,17.9
1964,19.2,18.4,16.7,16.8,15.4,14.5,14.3,16.1,17,17.3,17.6,17.5
1965,17.8,17.2,16.6,16.8,16.4,15.1,14.7,16.3,17.1,18.2,18.3,17.4
1966,18.4,18.1,17.1,17.5,16.3,15.6,14.5,15.8,16.7,16.7,17.9,16.9
1967,17.7,16.5,15.7,16.2,15.8,15,13.9,15,16.3,16.6,17.4,16.7
1968,18.2,18,16.8,17.2,18.2,15.7,16.6,15.7,16.6,16.9,17.3,17
1969,19,18.9,18.4,18.5,18.5,16.8,15.9,16.1,17.3,17.9,18.7,17.4
1970,17.9,18,17.3,17.7,17.3,16.7,15.8,16.1,17.1,17.5,17.9,16.7
1971,17.6,17.4,17,17.1,17.4,16.1,16.4,15.6,16.7,16.6,17.8,16.7
1972,17.3,18.2,17,17.3,16.9,17.1,16.2,16,17,17.9,18,18.2
1973,17.9,18.3,18,17.8,18,16.1,15,15.6,16.5,17.1,17.5,16.7
1974,16.5,16.4,16.5,16.6,15.7,14.6,14.3,14.6,15.9,16.8,17.7,15.9
1975,16.1,17.6,16,16.7,15.7,15.3,15,16.2,15.7,16.2,16.7,16
1976,17.1,17.1,16.4,16.6,16.2,15.2,14.6,15.4,16,17,17.8,17.4
1977,18.7,17.3,17.7,17.9,16.9,15.9,15.9,16.1,17.2,17.1,17.5,17.4
1978,18,18.4,17.6,17.5,17.4,15.7,16.5,15.3,17,17.4,17.9,17.2
1979,19,17.8,17.1,17.4,18.1,15.9,15.4,16.4,17.4,18.2,18.1,17.6
1980,18.6,18,17.7,17.7,17.4,16.4,15.6,16.2,17.2,17,17.9,17.8
1981,18,17,17.3,17.5,17.4,16.1,15.1,15.2,16,16.2,16.6,16.5
1982,17.4,16.7,17.1,17.2,17,16.5,15.9,15.6,16.3,16.9,17.8,17
1983,19.2,18.9,18.4,18.3,17.2,16.2,16.3,17,17.1,16.8,17.5,16.9
1984,17,16.5,17,16.8,15.4,14.9,15.2,14.8,16.8,18.7,17.1,17
1985,17.8,16.9,17.1,16.6,16.8,13.1,14.2,15.1,16,16.5,17.1,17.1
1986,17.8,16.6,16.2,17.7,15.5,15.5,14.3,15.5,17.1,17,17.6,17.1
1987,18,17.5,18.7,17.7,16.3,15.7,14.6,16.7,17.7,18.2,17.6,17.6
1988,17.8,18.8,16.7,16.8,15.7,14.6,15,16.7,16.5,16.9,17.9,17.4
1989,16.9,17.1,16.6,15.8,15.7,13.9,14.1,15.6,17.2,16.9,17.8,17.1
1990,16.8,17.9,16.7,16.1,16,15,14.5,15.4,17,17.1,17.8,16.8
1991,17.7,18.2,17.4,17.6,17,16.2,15,15.5,16.8,17,17.4,17.7
1992,19.2,18.6,18.6,18.9,18.7,16.8,14.9,15.9,16.2,16.8,17.4,16.7
1993,17.9,18.1,17.7,17.5,17.6,16.5,15.8,15.2,16.5,17.1,17.4,16.9
1994,18,17.6,17.2,17.8,17.4,15.9,15.2,15.4,16.8,17.4,17.7,17.9
1995,18.9,18.1,17.2,17.8,16.9,16.3,16.5,16.5,17.6,17.5,17.7,17.5
1996,18,18.3,17.3,17.2,17.1,15.9,15.2,15.5,16.9,17.1,16.9,17
1997,17.3,17.6,17.8,17.8,17.8,16.5,16.2,15.6,17.4,18,18,18
1998,19.3,19.1,19,19.2,17.8,16.4,16.8,17.4,17.3,17.8,17.8,17.8
1999,17.6,17.8,17.7,17.1,16.1,15.9,15.8,16.1,17.1,17.3,17.8,17
2000,17.5,17.2,16.8,16.8,17,15.9,14.9,16.6,17.3,17.5,18.5,17
2001,17.8,18.3,17,17.6,16.9,15.1,15.3,16,16.7,17.3,17.9,16.8
2002,18.1,17.6,17.7,17.8,17.2,15.8,15,16.1,17,17.4,17.5,17.1
2003,18.4,18.2,18.3,17.2,16.5,15.9,15.5,14.7,16.9,17.7,18.6,17.1
2004,18.2,18,17.4,17.6,16.7,15.8,15.9,16.1,17.2,17.5,17.9,17.2
2005,18.4,17.8,17.7,17.6,17.5,16.1,15.6,16.8,17.1,17.2,17.3,16.5
2006,18,17.6,17.9,17.2,16.2,16,16.6,16.7,17.2,17.1,17.8,17
2007,18.8,17.8,17.3,17.6,16.3,15.4,15.5,16.1,16.6,16.6,17.4,16.4
2008,17.8,17.5,17.2,17.2,16.1,15.2,16.3,17.2,17.1,17.1,18,17.1
2009,17.8,17.8,17.5,17.6,16.8,15.9,15.8,16.7,17.5,17.7,18.5,17.4
