1901,18.6,18.8,19.4,20,20.4,20.3,20.2,20.1,20,19.7,19.6,18.7
1902,18.5,18.9,19.3,19.9,20.2,20.2,20.2,20,19.9,19.7,19.5,18.8
1903,18.7,18.7,19.3,20,20.4,20.5,20.2,20,19.9,19.7,19.5,18.7
1904,18.5,18.6,19.3,19.8,20.2,20.3,20.2,19.9,19.8,19.6,19.6,18.7
1905,18.6,18.6,19.3,20,20.2,20.4,20.2,20,19.9,19.7,19.7,18.7
1906,18.5,18.7,19.3,19.9,20.3,20.2,20.2,20.1,19.9,19.8,19.6,18.5
1907,18.3,18.5,19.2,19.8,20.1,20.3,20.2,20,19.9,19.7,19.6,18.7
1908,18.6,18.7,19.3,19.9,20.3,20.4,20.2,20.1,19.9,19.7,19.5,18.7
1909,18.4,18.6,19.4,19.8,20.3,20.2,20.2,19.9,19.9,19.7,19.4,18.5
1910,18.4,18.5,19.2,19.8,20.1,20.3,20.2,20,20.1,19.6,19.6,18.8
1911,18.4,18.5,19.2,19.8,20.1,20.4,20.2,20.1,19.9,19.8,19.7,18.7
1912,18.6,18.8,19.4,19.8,20.3,20.3,20.2,20.1,19.9,19.7,19.6,18.8
1913,18.4,18.5,19.2,19.7,20.4,20.1,20.1,19.9,19.8,19.9,19.5,18.5
1914,18.4,18.6,19.3,19.8,20.1,20.2,20.2,19.9,19.9,19.7,19.6,18.9
1915,18.5,18.6,19.4,19.8,21.6,21.4,21.1,21.5,20.8,21.2,20.3,19.4
1916,19.1,18.8,19.3,20.6,21.2,21.1,20.5,20.2,20.6,20,19.6,18.5
1917,18.2,17.7,19.4,20,20.4,20.1,20.3,20.1,20.1,20,19.3,18.5
1918,18.2,18.7,18.6,19.8,19.4,19.9,20.3,20.6,20.3,20.4,19.6,18.9
1919,18.4,18.7,19.3,19.8,20.3,20.3,20.1,20,19.8,19.6,19.4,18.7
1920,18.5,18.7,19.3,19.9,20.3,20.2,20.2,19.9,19.8,19.6,19.5,18.6
1921,18.7,18.7,18.8,19.7,19.6,20.1,20.2,19.8,20.2,19.2,19.6,18.8
1922,18.5,18.5,19,20.1,20,19.8,19.6,20,19.8,19.6,19.2,18.5
1923,17.9,18.3,19.4,20.2,20.2,20.4,20,19.8,20.4,19.5,19.6,19
1924,19,19,20.4,20.8,20.7,19.8,19.7,20.6,19.7,19.6,19.4,18.6
1925,18.4,18.3,18.6,19.9,20.3,20.5,19.8,20.1,19.8,20.2,19.8,19.3
1926,19,19.4,19.9,21.3,21.1,20.7,20.1,20,19.8,20,19.6,18.7
1927,18.1,18.4,19,19.2,19.8,20,19.4,20.1,19.6,19.8,19.7,18.2
1928,18,18.8,19.3,20.2,20.2,20.2,20.2,19.8,19.9,19.9,19.3,18.4
1929,18.5,19.1,19.8,19.8,20.1,20.1,19.9,19.8,20,19.9,19.8,18.6
1930,18.6,18.5,19.6,20.2,20.1,20.1,20,19.9,20,19.4,19.5,18.9
1931,18.6,18.7,19.6,20.3,20.5,20.5,20.2,20.2,20,20,19.6,18.9
1932,18.6,18.9,19.1,20.5,20.5,20.1,19.8,20.1,19.9,19,19.1,18.5
1933,19.5,18.9,19.7,20.7,21.5,21.2,21.7,21.2,20.7,20.9,20.3,19.4
1934,19.1,18.2,18.9,21.4,22.1,20.6,21.3,21.6,21.7,21.5,20.7,20
1935,19,19.2,19.9,20.3,20.8,21.7,21.2,20.6,21.1,21,20.3,19.4
1936,19.2,18.4,20,20.6,21.4,21,21.4,21.8,21.2,21.2,21.2,19.1
1937,19,19.1,20.3,20.8,20.5,20.5,20.3,20.3,20.2,20.1,19.9,19.3
1938,19.1,19,19.3,19.6,20.6,21.1,20.6,20.1,20.6,20.4,19.6,18.7
1939,19,18.5,18.9,20,20.7,20.8,20.5,21.3,21.1,20.4,19.8,19.5
1940,19.4,20,17.8,21,21.5,21.3,21.4,21.7,20.7,20.3,20,16.6
1941,19.8,15.4,20.5,21.3,22.5,21.6,21.3,21.2,21,21.3,20.8,20.1
1942,19.5,16.2,17.6,21,20.7,20.9,20.6,20.8,20.5,20.1,20,19.3
1943,18.8,18.5,18.7,20.1,20,20.1,19.7,20.6,20.8,20.1,19.7,18.7
1944,18.2,17.7,18.7,20.5,19.8,20,20.2,19.9,19.8,20,19.3,18.4
1945,17.7,17.9,19,19.5,19.4,20.5,20.4,20,20.1,19.8,19.7,18.6
1946,17.6,17.5,18.8,19.1,20.1,20.5,19.9,20.2,20.5,20.4,20,19.6
1947,18.7,19.7,20.1,19.9,20.4,20.8,19.7,19.7,20.6,20,20.3,19
1948,18.8,18.8,19.5,20,20.5,19.9,19.1,19.1,19.8,19.9,20.2,18.7
1949,17.6,18.5,19.4,19.8,19.4,18.7,18.5,19.4,18.3,19.1,18.2,16.6
1950,17.5,16,16.3,19.4,19.7,19.7,19.4,19.2,19.6,19.4,19.1,18.6
1951,18.3,18.7,19,21,20.9,21.1,20.6,20.7,20.8,20.8,20.6,19.3
1952,19.2,19,20.2,20.9,21.3,21.1,19.9,20.1,19.3,20,19.6,18.8
1953,18.8,17.9,19.1,20.2,20,20.4,20.4,20.4,20.1,19.8,19.2,18.5
1954,17.8,17.7,18.6,19.2,20.3,20.3,20,20.3,19.9,19.4,18.7,18.4
1955,18.7,18.6,18.3,19.5,19.9,19.3,19.6,18.8,18.8,17.9,18.1,17.8
1956,17.3,18.6,18.8,19.9,19.5,19.3,19,19.1,19.3,18.9,18.7,17.7
1957,19.5,19.1,20,20.5,20.7,21.2,21.1,21.1,21,20.4,21.4,19.8
1958,19.7,19.9,20.9,21.5,21.1,20.3,20.4,20.7,20.4,19.7,19.6,18.7
1959,18.3,17.9,18.8,20,20.9,20.8,20.6,20.4,20.7,19.7,19.5,19.7
1960,18,18.9,19.5,20.6,20.9,20.9,20.2,20,19.6,19.7,19.5,18.6
1961,19.3,19,19.8,20.6,20.8,20.7,20,20.6,20,20.2,19.6,19.5
1962,18.2,18.1,18.5,19.2,19.5,19.4,19.9,19.3,19.5,19.7,19,18.7
1963,18.4,18.6,19.1,19.7,19.9,20.4,20.1,20.2,20.8,20.4,19.8,18.9
1964,17.6,18.3,18.7,18.7,19.3,19.5,19.7,19.8,19.8,19.5,19.9,17.7
1965,17.7,18.3,18.9,19.2,20.1,19.7,20,20.1,19.9,20.2,20.1,19.7
1966,19.8,19.2,18.9,20,20.1,20.2,20.2,20.4,20.4,19.8,19.6,18.8
1967,18.6,18.1,18.7,19.6,19.9,20.4,20.2,20.3,19.6,20,19.9,18.4
1968,17.7,18.4,19.1,20,20.2,20.5,20.8,20.2,20.2,20.1,20.3,19.4
1969,18.8,18.9,20.9,20.7,21.8,21.3,21.2,19.6,20.1,19.2,19,19.8
1970,19,19.1,19.7,20.3,20.6,20.7,19.9,19.7,19.6,19.8,19.4,19
1971,18.4,18.8,19.5,19.9,19.8,20.4,19.9,19.2,18.8,19,18.9,17.2
1972,17.6,17.9,19.2,19.9,20.4,20.8,21,20.6,20.6,19.7,19.5,19
1973,19,19.1,20.3,20.3,20.4,19.9,20.5,20,19.6,19.6,19.2,18.1
1974,18.1,18,18.9,19.9,19.9,20.4,20.5,19.9,19.3,20.2,19.3,19.2
1975,19,18.7,19.8,19.9,20.5,20.8,20.1,20.5,19.9,19.6,19.5,18.3
1976,18.5,18.8,19.1,19.9,20.8,20.6,20.6,20.3,20.5,20.4,20.2,19
1977,18.7,19.3,20.2,20.4,20.6,21.4,20.9,21,21.5,20.9,20.6,19.3
1978,18.9,20.1,20.4,21.2,21.3,21.3,20.9,20.7,20.8,20.5,20.3,19.1
1979,18.6,19.3,20.4,20.5,20.8,20.6,20.5,20.7,19.9,19.7,19.7,19.2
1980,19.1,19.4,19.9,20.5,21.2,20.9,20.7,20.9,20.3,19.8,19.9,18.8
1981,18.7,19.2,20.1,20.6,20.7,20.1,20.5,20.3,19.7,19.6,19.6,19.1
1982,18.4,19.1,19.5,20.7,20.6,21,20.6,20.5,20.2,19.9,19.7,19
1983,19.1,19.1,20.9,20.8,21,20.8,20.8,20.6,20.4,20.2,20.5,18.8
1984,18.6,19.3,19.8,20.3,20.1,20.9,20.1,20.1,19.8,20,19.5,18.9
1985,17.6,19,19.1,19.6,20.4,20.5,19.6,19.7,20,20.2,19,17.7
1986,17.9,17.7,18.8,19.9,20.3,20.3,20.2,20.8,20.6,19.6,19.9,19
1987,19.4,20.3,21,21.9,21.1,21.4,21.3,20.5,19.8,20,20,19.1
1988,18,18.8,18.9,20,20.8,19.4,19.8,19.8,20.2,19.9,19.8,18.6
1989,18.2,18.2,19.6,20.9,20.3,20.4,20.8,21,20.8,21,20.4,18.5
1990,18.8,17.9,19.2,19.7,20,20.2,19.6,20.1,19.2,19,20.3,18.5
1991,18.5,18.9,19.9,20.4,20.6,20.8,20.7,20.7,20.4,20.3,19.9,18.6
1992,18.7,19,19.6,20.4,20.6,20.8,20.2,20.3,19.8,19.9,19.6,18.8
1993,18.9,18.9,19.6,20.4,20.4,21,20.6,20.5,19.9,20.8,20,19.1
1994,18.1,18.9,20.2,20.5,20.5,20.7,20.3,20.8,20.9,20.4,19.9,18.8
1995,18.9,18.9,19.5,20.8,20.3,20.5,20.8,19.9,20.5,19.9,20,19.5
1996,18.9,21.4,21.1,21,20.7,20.9,20.5,21.9,20.7,21.4,21,18.8
1997,19.1,20.7,19.8,21.5,20.9,22.6,20.5,21.1,22.6,22.4,22,21
1998,20.7,20.1,21.4,21.8,22.5,21.9,21.8,22.4,22.2,21.2,21.7,20.6
1999,20.1,19.9,20,20.2,20.3,20.4,20.3,19.8,20,19.2,19.1,19.4
2000,18.2,18.6,19.1,19.6,20.1,20.4,20,20.5,19.8,20.1,19.6,18.7
2001,18.3,17.9,19,19.8,20.3,20.3,20.4,21.7,20.5,20.2,19.5,19.6
2002,19.3,18.9,19.7,20.4,20.6,20.7,20.6,20.7,22.2,22,21.9,21.3
2003,19.9,21.7,21.1,21.1,22.4,21.6,21.3,21.2,20.4,21.4,21.2,21.1
2004,20.1,20.7,21,21.3,20.5,20.7,20.4,22,21.5,19.7,20.2,20.5
2005,20.4,19.8,22.1,21.9,21.9,21.9,20.9,21.3,21.7,20.7,20.4,20.6
2006,20.4,18.5,20.7,21.2,22.2,21.8,21.7,22,21.9,21.9,20.9,21
2007,19.9,20.2,21,21.5,21.6,22.5,20.8,21.1,20.8,20.2,20,20.9
2008,19,19.1,19.8,20.7,21,21.2,20.8,20.6,20.5,20.3,19.9,19.1
2009,19.3,18.7,20,20.6,20.6,20.9,20.6,20.8,21.2,20.8,20.9,20.1
