1901,18.6,17.9,18.1,16.7,15.3,13.8,13.2,12.5,13.4,15.3,18.3,17.2
1902,18.8,18,17.5,17.6,15.9,13.8,13.7,12.8,15.4,15.9,17.6,17.8
1903,18.1,17.8,18.2,17.4,16.3,14.7,13.1,13.4,12.9,14.9,17,17.5
1904,17.5,17.7,17.8,16.7,16,13.6,12.7,13.4,13.1,16.2,18.1,18
1905,18.3,17.9,17.6,16.3,16.2,15,13.1,13.7,13.2,16.4,16.7,17.5
1906,19,18.2,18.6,17.4,15.7,13.8,13.1,13,13.7,15.2,16.9,17.5
1907,18.1,17.9,17.4,17,15.7,14,12.2,13.3,14.3,16.9,17.3,17.1
1908,18.3,17.7,18.3,17.2,15.1,14.5,13.2,13.9,14.8,16.9,17.8,17.4
1909,17.8,17.9,17.8,17,15.2,12.9,13.9,13.3,14.8,14.9,17.5,17.2
1910,18.2,18,17.8,17.3,15.3,13.2,12.9,13.4,14.3,16.1,15.9,17
1911,17.9,17.3,17.5,16,15.1,13.5,13.4,13.3,14.3,16.2,17,18.6
1912,18.7,17.6,18.7,17.4,16.3,14.1,13.2,13.8,15.3,16.2,18.2,17.8
1913,17.6,17.6,18.5,16.3,16.5,13.6,12.8,14.1,14.5,16.7,17.1,17.3
1914,17.7,18.4,18,17.3,15.8,14.5,13,13.8,14.7,15.9,16.6,18.5
1915,18.3,18.2,18.1,17.8,16,13.8,13.8,12.8,13.9,16.8,17.3,17.7
1916,18.2,17.7,18.2,17.3,15.4,13.7,12,13.5,14,15.8,16.2,16.5
1917,17.5,16.8,17.3,16.8,16.3,14.2,13.7,13.4,13.7,14.2,16.8,16.6
1918,18.3,17.5,17.7,16.5,15.3,14.1,12.8,13,14.1,16.2,17.2,17.8
1919,18.2,18.1,18.1,16.3,14.6,13.7,12.4,14.3,15.3,15.8,18,18.2
1920,18,17.7,17.7,16.2,15.7,12.9,12.2,13.5,15.3,16.8,16.8,17.1
1921,17.7,17.7,17.3,16.3,15.4,13.6,13.1,13.4,14.4,16.4,17,17
1922,17.3,17.6,17.8,15.5,15.3,13.2,12.3,13.3,13.5,15.4,17.3,18
1923,18.6,18.1,18.4,17.5,16.2,13.9,13.8,12.9,14.8,16.1,17.8,17.8
1924,18.2,17.9,18.6,16.8,16.1,14,13.7,13.8,14.5,15.7,17.1,17.4
1925,17.9,17.9,17.7,17.4,15.1,15,14.2,13.1,15.7,16.3,17.1,17.9
1926,18.9,18.5,19.1,18.3,16.4,15.2,13.8,14.1,15.4,16.5,18.2,18.1
1927,18.1,18.2,17.7,17.2,15.8,14.1,12.7,13.9,14.5,16.2,17.3,18.4
1928,17.6,18.3,18.4,18,16.5,13.7,13.2,13.6,14.4,16.4,17.6,17.7
1929,18.6,17,18.8,17.6,15.8,14.6,13.9,13.7,14.5,17.1,17.7,17.4
1930,17.5,18.4,17.8,17.1,14.8,13.5,12.9,12.7,15.5,15.7,17.7,17.9
1931,17.5,17.7,17.6,16.7,15.3,13.4,13.1,12.9,13.3,14.8,16.1,17.2
1932,18.2,17.6,18.1,16.4,14.6,13.6,13.2,13.4,13.5,15.2,17.6,17.4
1933,18.1,17.4,17.3,16.9,15.4,13.5,13.1,13.3,13,15.8,17.7,17.5
1934,17.7,17.7,18.2,17,15.7,12.6,13,12.2,13.3,15.3,16.9,17
1935,17.9,17.6,18.2,16.6,16.1,13.9,11.9,13.6,14.8,16,16.6,17.4
1936,17.8,18.7,18.3,17.1,15.9,13.4,12.9,12.9,14,16.6,17.3,17.4
1937,17.8,18,17.6,17,15.3,14.4,13,13.1,15.1,15.4,18.3,17.9
1938,18.3,18,18.3,17.4,16.1,13.4,13.7,13.8,14.2,15.6,16.3,18.1
1939,18.3,18.3,17.9,17.1,16,14.1,13.5,13,14.5,15.9,17.3,17.2
1940,17.5,17.7,17.6,16.7,15.1,13.5,12.9,12.8,13.3,14.6,16.2,17.3
1941,16.8,18.1,18.3,17.4,15.6,14.1,12.9,13.4,14.5,15.5,16.6,17.9
1942,18.1,18.6,18.6,17.3,15.4,13.5,12.5,13.2,14,14.3,16.7,17.6
1943,17.6,17.4,17.5,17.3,15.5,13.3,12.2,13,12.3,14.2,16.2,17.2
1944,17.4,18.1,17.7,16.6,15.7,14.8,12.6,13.1,14.2,14.9,17.5,17.8
1945,18.5,17.6,18.4,17.8,15.5,13.3,13,13.2,14,16.5,17,17.3
1946,17.7,18.4,17.6,17.1,15.8,13.7,13.4,13.6,12.8,15.7,16.7,17.5
1947,18.2,18.4,17.5,17.3,15.8,13.9,14.1,12.9,13.8,15.1,16.5,18
1948,18,18.2,18,17.8,16.8,14.3,13.3,13.3,13.9,15.3,16.8,17
1949,18.2,18,17.8,16.7,15.6,13.8,13.1,13.7,14.2,15.8,17,17.9
1950,18.3,17.4,17.7,17,14.8,13.6,12.6,13.2,13,15.2,17,17.7
1951,16.7,16.8,16.6,16.7,15.3,13.4,13.2,12.9,13.1,14.8,15.9,17.2
1952,17.2,17.4,17.3,16.7,15.3,13.3,12.7,12.6,13.1,13.9,15.4,17.1
1953,17.4,17.5,17.4,17,15.5,14.1,12.9,12.5,13.1,14.2,16.1,17.2
1954,17.1,17.7,17.1,16.4,15.4,13.2,13,12.7,13.4,14.1,15.7,17
1955,17.8,17.5,17,16.3,14.9,12.9,12.8,12.4,12.9,14,16,16.9
1956,16.7,17,17.2,16.4,14.7,13,12.1,12.6,13.3,14.2,15.6,17.2
1957,17.4,16.6,16.6,16.3,14.4,12.7,12.3,12.6,13.5,14.9,16.2,17.4
1958,17.6,18.1,17.3,17.2,14.3,12.9,12.4,12.8,13.7,14.4,15.9,17.1
1959,17.4,17.8,16.8,16.1,14.5,12.9,12.3,12.2,12.5,14.2,16,17.4
1960,17,17.7,16.9,16.3,14.9,13.5,12.1,12.4,13.1,14.1,15.6,17.2
1961,17.7,18.3,17.9,17.6,16.2,14.3,13.9,13.2,13.6,15.3,16.8,17.4
1962,18,18,17.7,16.8,14.9,13.1,12.9,13.2,13.8,14.9,16.5,17.7
1963,18,17.5,17.6,17.2,14.6,13.7,13.1,12.3,12.8,14.3,16.1,17
1964,17.4,18.2,17.8,16.7,14.6,13.2,12.4,12.3,12.9,14,15.5,16.8
1965,17.1,17.4,16.6,16.4,14.7,12.7,12.8,12.9,13.6,14.7,16.4,16.9
1966,17.9,18.1,17.5,17.2,15.8,14.1,13.6,13.1,13.8,14.3,15.9,17.4
1967,17.6,18.2,18,17.2,15.6,14,13.8,13.4,13.7,14.9,16.4,16.9
1968,17.1,17.7,17.2,16.4,14.6,13.5,13.2,12.9,13.1,14.6,16.2,17
1969,17.8,18,18.6,18,15.5,13.9,13.8,13.2,13.5,15.7,17.1,18.2
1970,17.9,18.7,17.8,16.4,15.1,13.5,13.5,13.3,13.5,14.5,16,16.8
1971,17.3,17.8,17.4,16.5,14.6,12.7,12.9,12,12.5,13.7,15.3,16.9
1972,17.1,16.9,16.6,16.6,15.5,13,13.5,13.2,13.3,14.6,16.2,17.3
1973,17.4,17.6,17.5,16.3,15.3,13.5,13,12.7,13,14.5,15.2,17.1
1974,16.9,16.8,16.6,16.6,14.9,12.9,12.6,12.3,12.5,14.1,15.4,17.2
1975,17.2,17.7,16.9,16.8,15.1,13,12.9,12.1,12.2,13.5,15.6,16.4
1976,16.4,17.2,16.8,16.6,15.2,13.8,13.1,12.9,12.9,14.6,16.3,17.4
1977,17.6,17.2,17.5,16.5,16,13.9,13.2,13.3,13.5,15.4,16.2,17.7
1978,17.8,17.7,17,16.8,15.3,13.5,12.6,12.8,13.5,14.9,15.9,17.1
1979,17.3,17.4,17.4,16.4,14.9,13,12.8,13,13.6,14.9,16.4,17.5
1980,17.4,17.6,17.7,16.9,14.8,13.2,12.8,12.6,13.1,14.8,16.2,17.2
1981,18,18,18.2,16.8,14.9,13.3,12.5,13,13,15.1,16.1,17.4
1982,17.7,17.5,17.3,16.6,15,13.9,13.3,12.9,13.8,14.7,16.5,17.2
1983,17.2,18.5,17.8,16.8,15.3,13.9,13.2,12.7,13,14.6,15.9,17
1984,17.4,17.5,16.9,16.3,14.3,12.9,12,11.8,12.5,14.3,16.2,16.5
1985,17.9,17.2,17.4,16.3,14.6,12.9,12.8,13.2,13.2,14.1,15.3,17.2
1986,17.2,17.9,17.2,16.7,15.1,12.3,12.2,12.6,12.8,14.6,16.2,17.3
1987,17.6,17.7,18,16.7,15.3,13.2,13.5,13.4,13.5,15.2,16.2,17.5
1988,18.2,18,17.9,16.8,14.9,13.9,13.1,12.6,13.2,14.9,15.8,17.1
1989,17.3,17.3,18,16.2,15.2,13.5,12.9,13,13.4,14.4,15.9,17.3
1990,17.2,17.6,17.7,16.3,15.3,13.5,12.1,12.9,13.6,15,15.1,16.9
1991,17.7,17.8,17.6,16.5,14.8,13.6,12.6,12.9,13.9,15.1,16.6,16.9
1992,18,17.4,18.1,16.9,15.4,13.7,12,12.9,13.4,15.1,16.8,18.2
1993,18.3,17.7,17,17.1,15.7,13.8,12.8,13,12.8,14.6,16,17.5
1994,17.8,18.7,17.8,17.9,16,14.2,12.5,14.1,14.4,15.3,16.3,17.4
1995,18,18.1,18,16.8,14.9,13.8,13.4,13.2,13.8,14.5,15.7,17.6
1996,17.7,17.6,17.9,16.8,15.2,13.5,12.5,12.4,14.1,13.9,16.3,17.8
1997,17.4,17.4,18.1,17.2,15.8,14.1,13.1,13.2,13.6,14.5,17.6,18
1998,18.3,19,18.6,17.1,16,14.2,13.8,13.1,13.5,14.6,16.6,17.3
1999,17.6,18.2,18,16.7,15.7,13.5,12.9,12.8,13.5,14.2,16,17.5
2000,18.2,17.4,17.5,16.7,15.8,14,12.8,12.9,13.2,14.6,16.3,17.6
2001,17.9,18.1,18.1,17.2,15.7,13.5,13.1,13,13.4,14.5,16.6,17.5
2002,17.2,18.2,17.9,16.9,15.3,13.3,13.8,13.2,13.2,14.8,17,17.6
2003,17.7,17.9,18.3,17.3,16.7,13.6,12.9,12.8,13.4,15.3,16.7,16.8
2004,16.8,18.5,18.1,16.9,14.8,12.9,13.5,13.4,13.9,15.2,16,17.1
2005,18.4,19.2,18.6,17.7,15.7,14,13,13.5,14.2,15.1,16.8,17.2
2006,17.9,18.3,18.2,16.9,15.6,13.9,13.4,13.3,13.6,15.1,17,18
2007,18.4,18.5,18.2,17.1,16.2,14.1,13.4,13.6,13.9,15.1,16.8,17.9
2008,18,18.1,17.5,16.6,15.3,13.4,13.3,13.4,13.7,15.5,16.9,18
2009,18.7,18.7,18.2,17.2,15.8,14.5,13.5,13.4,13.9,15.3,16.9,18.1
