1901,18.9,18.8,19.2,19.1,19.7,19.2,18.9,18.8,18.6,18.8,18.7,19
1902,18.1,18.7,18.7,19.1,19.6,19.3,18.8,18.7,18.5,18.7,18.6,19.3
1903,18.7,18.1,19.2,19.5,19.8,18.7,18.6,18.5,18.4,18.5,18,17.7
1904,17.5,17.7,18.6,18.8,19.5,19,18.7,18.8,18.8,18.8,18.2,18.4
1905,18.9,18.9,19,19.5,19.5,19,18.8,19,18.8,18.9,18.7,20
1906,19.3,19,19,19.8,20.1,19.2,18.9,18.9,18.9,18.6,18.2,18.9
1907,18.4,18.4,18.4,19.1,19.3,18.9,18.7,18.6,18.7,18.6,18.6,18.1
1908,18.4,18.2,18.6,19.1,19.5,18.9,18.7,18.6,18.7,18.7,18,18.7
1909,18.4,18.4,18.7,19.1,19.4,19,18.6,18.7,18.7,18.8,18.1,18.4
1910,18.7,18,18.4,19,19.5,18.8,18.7,18.7,18.4,18.6,18.4,18.2
1911,18.7,19.2,19.3,19.6,20,19.6,19.7,19.2,19.3,19.1,20,20.1
1912,19.8,19.5,20.1,20.1,20.3,19.3,19.2,19.1,19.2,19.2,19.1,19.7
1913,19.3,19.4,20,19.6,20.1,19,19.1,19.4,19.2,19.4,19.3,19.9
1914,19.2,19.5,19.5,19.8,20.9,19.2,19.3,19.5,19.7,19.7,20,20.4
1915,19.6,19.6,19.7,20,20.4,19.5,19.2,19.5,19.4,19.3,19.5,19.3
1916,18.7,19.2,19.5,20,19.8,19.3,18.6,19,19.3,19.4,19.3,19.3
1917,18.5,18.4,18.8,19.7,19.2,19.1,19,18.7,18.9,19,19.3,19.1
1918,17.7,17.1,19,19.1,19.3,18.7,19.3,19.3,19.3,19,19.6,19.2
1919,19.8,19.6,19.9,20.1,20.5,19.7,19.1,19.6,19.5,19.5,19.3,19.5
1920,19,18.9,19.7,19.8,20.2,19.8,19.4,19,19.3,19.2,19.8,18.8
1921,19.2,18.6,19.4,19.7,19.5,18.8,19,19.3,19.2,18.9,18.9,19.7
1922,19.6,18.9,18.7,18.9,19.5,19.1,18.9,18.7,19.3,19,19.5,19.7
1923,18.9,18.7,19.1,19.7,19.7,19.4,18.6,18.7,18.5,19,19.3,19.8
1924,20.1,19.3,19.4,19.6,19.8,19.2,19,19.4,18.4,18.3,19,18.9
1925,18.6,17.9,18.6,19.2,19.6,19.2,19.3,18.7,18.8,18.7,18.6,18.6
1926,18.8,18.6,18.7,20.2,20.6,19.4,18.8,18.9,18.7,18.6,18.7,19.6
1927,19.1,18.6,19.3,19.2,19.1,18.9,19.1,18.8,18.9,18.5,18.7,19.5
1928,19.1,19.1,18.9,19,19.6,18.9,18.8,18.6,18.7,18.6,18.7,20
1929,18.5,18.3,18.1,18.9,19.6,18.4,19.2,18.9,19,18.3,18.4,19.3
1930,18.4,18.1,18.4,18.9,19.7,18.7,19.5,19.8,19.2,18.9,19.2,19.5
1931,19.6,18.9,19.2,19.9,20.1,19.8,19.2,19.9,19,18.7,18.8,19.1
1932,18.1,18.6,18.9,19.2,19.3,18.7,18.9,18.9,18.6,19.2,18.8,18.9
1933,19.4,18.1,18.8,19.5,19.9,19.2,19.1,19.3,18.5,18.5,18.5,18.8
1934,18.1,18,18.5,18.9,19.5,19.1,19.2,19,19.3,18.9,19,18.8
1935,18.8,18.5,19.8,19.2,19.2,18.8,19.5,19.1,19.3,19.5,19.4,19.5
1936,19.4,19.2,19.2,19.6,20.3,19.1,19.3,19,19.2,18.8,19,20
1937,19.3,18.9,19.5,20,19.4,19.5,19.3,19.3,19,18.9,19.3,19.6
1938,19,19.1,19.4,19.6,19.5,19.1,18.7,18.8,19.2,18.9,18.8,19.2
1939,20.3,18.3,18.5,19.7,19.8,18.5,18.4,18.9,18.7,18.8,19,18.1
1940,17.9,18.7,18.8,19.6,19.7,19.8,18.9,18.7,19,19.5,19.3,19.4
1941,19.7,19.7,19.2,20.3,20.3,19.4,19.2,19.3,19.6,20,19.7,19.9
1942,17.9,18.7,19,19.4,19.7,18.9,18.7,18.4,18.7,18.5,18.1,18.8
1943,18,17.5,18.7,18.3,19.2,18.5,18.1,17.9,18.1,18.5,18.1,18.5
1944,18.5,18.4,18.5,19.2,19.3,18.6,18.5,18.6,18.7,18.7,18.2,18.5
1945,18.5,18.7,18.7,18.9,19.3,18.8,18.7,18.7,18.5,18.5,18.5,18.9
1946,18.6,18.9,19.4,19.4,19.7,19,18.7,18.5,18.4,18.8,18.7,19.1
1947,18.6,18.5,19.1,19,19.5,18.7,18.2,18.5,18.6,18.6,18.1,19.1
1948,19.3,19.3,19.9,19.9,19.9,19.4,19.1,19.7,19.3,19.4,19,18.6
1949,18.2,19.6,19.6,19.8,19.7,19.4,19.1,19.3,19.1,19.2,19,19.8
1950,19.5,19.4,19.5,19.4,19.8,19.2,18.5,18.6,18.5,18.7,19.3,18.9
1951,18.1,17.8,18.2,18.4,18.6,18.7,18,18.1,18.3,18.2,18.2,18.9
1952,18.6,18.8,18.5,18.8,18.9,18.3,18.2,18,18,18.2,17.8,17.5
1953,18.3,17.7,18.1,18.6,18.6,18.8,18.5,18.3,18.3,18.6,18.2,18.2
1954,18.3,18.3,18.1,18.6,18.9,18.5,18,18.3,18.2,18.2,17.5,18.2
1955,18.1,17.8,17.7,18.2,18.9,18.1,17.8,17.9,18.4,18.1,17.8,17.6
1956,17.8,17.8,18.1,18.5,18.8,18.1,18,18,18.1,18.3,18.1,18
1957,17.6,17.6,18.3,18.9,19.2,19,18.5,18.3,18.5,18.3,18.4,19.4
1958,18.6,18.2,18.7,19.2,20.7,19,18.5,18.6,18.7,18.7,17.9,17.9
1959,18.5,18.4,18.5,18.8,19.1,19.1,18.4,18.3,18.4,18.4,18.2,18.5
1960,18.2,18.4,18.2,18.6,19.2,18.9,19.1,18.7,18.6,18.5,18.1,18.6
1961,18.3,18.3,18.6,18.9,19.1,18.2,17.7,18.4,18,18.1,18,18.9
1962,19,17.5,18.5,18.8,19.6,18.2,18.3,18.1,18.6,18.8,18.5,18.8
1963,18.1,17.6,18.4,19,19.7,19.1,18.9,18.7,19.1,18.9,18.6,18.6
1964,18.9,18.9,18.8,19.3,19.7,18.8,18.7,18,18.6,18.4,18.4,18
1965,17.2,18.1,18.3,18.6,19.3,18.6,18.2,18.5,18.1,18.6,18.4,18.9
1966,18.7,18.6,18.6,19.3,19.2,18.7,18.6,18.7,18.3,18.7,18.3,18.9
1967,18.4,18.2,18.1,18.5,19.4,18.5,18.6,18.4,18.2,18.2,18.2,18.5
1968,18,17.4,18.1,18.7,18.9,19,18.5,18.5,18.3,18.5,18.5,18.6
1969,18.7,18.2,18.9,19.4,19.9,18.9,18.7,18.4,18.5,18.5,18.6,18.4
1970,18.6,18.2,18.6,19.2,19.8,19.3,18.7,18.8,18.5,18.6,18.3,18.7
1971,18.3,17.7,18,18.5,18.7,18.2,18.2,18,18.6,18.5,17.9,19
1972,17.3,18.4,18.2,18.4,19.1,19.2,19.1,18.7,18.9,18.7,18.6,19
1973,18.8,18.9,19,19.6,19.4,19.4,19,19,18.6,18.7,18.6,18.5
1974,17.6,18.2,17.8,18.7,18.9,18.5,18.5,18.9,18.4,18.6,18.4,17.8
1975,18.3,18,18.2,18.7,18.8,18.6,18,18.5,18.2,18.1,18.3,18.4
1976,17,17.4,18.1,18.5,18.7,18.1,18.4,18,18.4,18.4,18.1,18.6
1977,18,18.2,18.4,19.1,19.2,18.7,19,18.3,18.6,18.8,18.4,18.9
1978,18.8,18.7,18.9,18.8,19.6,18.8,18.7,18.6,18.3,18.3,18.5,18.6
1979,18.3,18.5,18.7,18.9,19.2,18.8,18.6,18.5,18.8,18.6,18.7,18.7
1980,18.4,18.1,18.4,19.2,19.6,19.3,19,18.1,18.6,18.8,18.4,18.5
1981,18.2,18.4,18.8,19.2,19.5,19.2,18.7,18.6,19.2,19,18.7,18.6
1982,18.2,18.7,18.9,18.9,19.6,19.2,18.6,18.6,18.9,18.2,18.5,19.4
1983,18.9,18.9,19.9,20.3,20.1,19.6,19,19.2,18.9,19,18.8,19.1
1984,18.7,18.7,18.7,19.1,19.4,18.9,18.4,18.4,18.2,18.3,18.3,18.7
1985,18.2,19,18.6,19.1,19.3,18.4,18,18.3,18.4,18.5,18.4,18.8
1986,19.1,18.4,18.9,19.2,19.4,19,18.8,18.8,18.4,18.5,18.2,18.9
1987,18.7,18.3,19.3,19.4,19.6,19.8,19.1,19.1,19.1,19.2,19.1,19.3
1988,19.4,19.1,19.6,19.9,20.2,19,19,18.9,19.2,19.1,19.2,18.5
1989,19.2,18.1,18.6,19.1,19.7,18.7,19.2,18.8,19,19.2,19.2,19.3
1990,19.1,19.8,19.6,20,20.1,19.8,19.1,19.3,18.7,19,18.9,19.1
1991,19.5,19,19.2,19.4,20.1,20,19.7,19.2,19.3,19,18.5,19.2
1992,18.8,19.3,19.6,20.2,20.1,19.5,18.9,19.1,18.9,18.6,18.2,19
1993,19.2,18.4,19.1,19.3,19.9,19.4,19.4,19,18.7,18.6,18.7,19.5
1994,19,19,19.3,19.4,19.6,19.1,19.2,18.6,19.1,19.1,18.7,19.4
1995,19.6,19.2,18.8,19.8,20.2,19.9,19.9,19.2,19.7,19.5,19,18.7
1996,18.7,19,19.1,19.6,19.9,20.1,19.6,19.1,19.5,19.2,18.8,18.9
1997,18.7,18.9,19.3,19.4,20.5,19.5,19.8,19.8,20,19.4,19,19.9
1998,20.1,20.2,20.3,19.9,21.6,20.4,19.9,19.6,19.8,19.9,19.1,19.4
1999,19.4,19.5,19.3,19.7,19.9,19.5,19.3,19.1,19.1,19,18.9,19
2000,19.2,18.9,19.3,19.7,20.1,19.6,19.2,19.2,19.4,19.1,19.4,19.7
2001,19.4,19.1,19.7,19.8,20.5,19.7,19.7,19.8,19.6,19.7,19.6,19.8
2002,19.8,19.6,20,20,20.9,20.2,20.4,19.6,19.5,19.4,19.4,20.4
2003,20,19.6,19.9,20.2,20.8,19.9,19.8,19.9,19.8,19.5,19.6,19.7
2004,20.2,19.8,20.5,19.8,20.4,19.8,19.3,19.7,19.2,19.4,19.2,19.8
2005,19.5,19.6,19.8,20.3,20.2,20.3,19.9,19.9,19.2,19.6,19.3,19.4
2006,19.4,19.7,19.8,19.8,19.8,19.4,20.1,19.4,19.4,19.6,18.9,20.1
2007,20.1,19.3,19.4,19.8,20.3,20.2,20,19.6,19.6,19.3,19.3,19.5
2008,19.6,18.9,19.4,19.7,20.1,19.7,19.8,19.8,19.6,19.7,19.6,19.6
2009,19.2,19.1,19.4,20,20.5,20.3,20.3,19.7,20.1,19.6,19.5,19.3
