1901,18.8,19.5,19.8,19.8,19.5,19,18.4,18.5,18.6,18.8,18.9,18.5
1902,18.7,19.4,19.7,19.5,19.2,19.1,18.8,18.9,18.9,18.9,18.9,18.5
1903,19.1,19.7,19.9,20,19.5,19,18.7,18.6,18.6,18.8,18.7,18.4
1904,18.6,19.5,19.8,19.9,19.5,19.2,18.4,18.5,18.6,18.8,18.9,18.5
1905,18.8,19.5,19.8,19.8,19.5,19,18.6,18.5,18.6,19,19.1,18.6
1906,18.7,19.7,19.8,19.8,19.7,19.3,18.6,18.7,18.7,18.8,18.7,18.1
1907,18.5,19.6,19.9,19.9,19.6,19.2,18.5,18.5,18.6,18.8,18.8,17.9
1908,18.7,19.3,20.1,20.1,20,19.2,18.5,18.5,18.9,19.4,18.6,18.1
1909,18.5,19.3,19.6,19.4,19.4,18.8,18.6,18.7,18.6,18.8,18.7,18.5
1910,18.6,19.6,19.4,19.8,19.6,19.1,18.5,18.6,18.5,18.7,18.8,18.4
1911,19,19.3,19.7,19.7,19.4,19.1,18.6,18.5,18.6,18.9,18.9,18.4
1912,18.5,19.3,19.4,19.4,19.4,19.1,18.4,18.5,18.6,18.6,18.8,18.2
1913,18.5,19.3,18.9,19.5,19.2,18.8,18.6,18.7,18.8,18.7,18.4,18.1
1914,19.1,19.5,19.8,19.5,19.3,19.2,18.5,18.5,18.6,18.8,19,18.5
1915,19,19.6,19.5,19.4,19.2,18.8,18.3,18.4,18.6,18.7,18.9,18
1916,17.9,19.2,19.3,19.6,19.1,18.7,18.4,18.4,18.4,18.3,18.8,18.2
1917,18.6,19.4,19.3,19.1,19.5,18.8,18.5,18.3,18.3,18.1,18.4,18
1918,18.1,18.9,18.9,18.8,19,18.9,18.7,18.3,18.5,18.8,18.7,18.2
1919,19.1,19.6,19.7,19.1,19.5,19,18.6,18.7,18.7,18.7,18.7,18.1
1920,18.4,19.1,19.2,19.3,19.2,18.9,18.5,18.5,18.6,18.6,18.6,17.9
1921,18.2,18.7,18.8,19.8,19.4,19,18.7,18.4,18.6,18.7,18.7,18.7
1922,18.6,19.5,19.8,19.7,19.4,19.3,18.5,18.5,18.4,18.8,19.3,18.3
1923,19,18.8,19.8,18.9,19.2,18.8,18.5,17.9,18.2,18.1,18,17.8
1924,18.9,19.2,20,19.8,19.2,19.1,18,18.6,18.4,18.5,18.4,18.7
1925,18,18.8,19.6,19.6,19.2,18.7,18.6,18.5,18.7,18.8,19,18.6
1926,18,19.2,19.1,19.4,19.3,18.9,18.7,18.7,19,18.6,18.2,17.8
1927,18.1,18.7,19,18.5,18.9,18.9,18.1,18.5,17.9,18.8,18,18.5
1928,18.7,19.4,19.8,19.8,19.3,18.7,18.2,18.6,18.5,18.6,18.3,18
1929,18.3,19.5,19.1,19.5,18.9,18.6,18.1,18,18.1,18.7,18.9,17.5
1930,18,19.2,19.1,19.5,19.1,18.5,18.2,17.9,18.1,17.9,17.5,18.3
1931,18.4,19.6,19.4,19.4,19.3,18.9,18.3,18.4,18.5,18.9,18.9,18.5
1932,18.7,19.4,19.5,19.5,19.1,18.9,18.2,18.4,18.7,18.8,18.9,18.4
1933,19.2,20,19.9,19.5,19.4,18.8,18.4,18.5,18.8,18.9,19.2,18.8
1934,18.6,19.2,19.7,19.8,19.1,19,18.3,18.5,18.3,18.8,18.6,18.2
1935,18.1,19.5,19.6,19.7,19.1,19.1,18,18.1,18.4,18.4,18.2,18.1
1936,18.8,19.4,19.4,19.4,19.4,19,18.2,18,18.2,18.6,17.7,18.4
1937,18.7,19.3,19.5,19.6,19.4,18.9,18.4,18.5,18.5,18.6,18.4,18
1938,18.8,19.3,19.9,19.8,19.5,18.9,18.1,18.2,18.4,18.8,18.6,18.4
1939,18.4,19.2,19.9,19.8,19.4,18.9,18.7,18.5,18.8,18.6,18.7,18.1
1940,18.8,19.7,19.5,19.7,19.7,19.2,18.5,18.5,18.3,18.3,18.5,18.2
1941,19.7,21.2,20.2,20.5,20,19,18.2,18.3,17.7,18.5,18.2,17.9
1942,19.1,21.1,19.5,19.6,19.9,19.1,17.8,17.7,17.5,19.2,20.1,19.2
1943,19.2,19.1,19.8,20.2,19.7,18.7,18,17.5,18,19.1,20.2,20.3
1944,20.1,19.8,19,19.4,19.1,19.7,18.2,18.1,18.1,18.8,20,19.2
1945,19.2,19.6,21.2,21.2,19,18.2,18.8,17.6,17.9,18.3,19,18
1946,20.1,21,19.9,19.3,19.2,18,17.4,16.7,17.4,17.8,18.1,18.7
1947,18.9,19.8,19.4,18.2,19,18.8,18,17.7,17.4,19.1,20.2,18.6
1948,19,20.2,19.1,20.1,19.9,18.4,18,17.6,17.4,18,17.8,17.6
1949,19,20.7,20.4,21.4,20,18.8,17.8,18.1,17.3,18.3,19.7,18.8
1950,18.2,17.4,19.8,19.5,19.6,18.4,17.6,17.5,17.5,16.8,17.5,18
1951,18.8,19.2,20.2,20,19.9,19.3,18.4,18.1,18.5,18.6,18.9,17.8
1952,18.8,19.8,20,19.5,19.4,19,18,18.2,17.9,18.3,18.3,18.1
1953,18.5,19.4,19.4,19.7,19.7,18.9,17.9,18.2,17.7,18.2,18.6,17.9
1954,18.2,20.8,20.6,19.8,19.4,18.7,18,17.8,18,17.9,18.9,18.2
1955,19.8,18.7,19,19.1,19.2,18.7,17.7,17.8,18,19.7,17.9,17.7
1956,17.1,19.9,19.6,18.8,19.1,18.6,17.6,17.7,17.5,18,18.9,18
1957,18.4,17.8,19.7,19.5,19.8,19,18.3,18,18,18.5,18.9,19.2
1958,19.8,19.2,21.1,20.5,20.6,19.3,18.9,18.2,18.5,18.8,18.9,19.4
1959,20,19.8,19.7,20.1,19.9,19,18.3,18,18.4,18.6,18.7,18
1960,19,20.7,20.1,19.8,19.5,19.1,18.2,18.4,18.3,18.5,19,19.1
1961,18,19.4,19.9,20.2,20.1,19.2,18.5,18.4,18.5,18.7,17.9,18.2
1962,17.4,17.9,19.5,19.4,19.1,18.5,18,18.1,18.3,18.3,18.4,18.3
1963,18.7,19.1,19.2,19.1,19.5,18.8,18.1,17.9,18.2,18.7,19.3,18.6
1964,19.1,19.7,20,19.3,19.6,18.7,17.8,17.8,17.9,18.1,18.3,18.3
1965,18.2,17.9,20.5,19.3,19.1,18.4,17.7,17.8,18.5,18.4,18.8,18.1
1966,19.6,20.2,19.8,19.1,19.8,19,18.3,18.1,18.1,18.2,18.6,18.1
1967,18.4,19.3,19.3,20.1,19.6,18.3,18.2,17.6,18.1,18.3,18.5,17.7
1968,17.4,19,18.5,18.5,18.8,18.5,18.1,17.8,18,18.2,18.8,18.5
1969,19.6,19.7,19.6,19.9,19.2,19.1,17.9,17.6,18.5,18.7,18.6,18.7
1970,19.4,20.8,20.5,19.7,19.3,18.7,18.1,19,19.1,19.3,18.3,17.4
1971,17.5,18.6,19.1,18.9,18.7,17.8,17.4,17.8,17.5,18.3,19.1,16.7
1972,18.7,18.9,19.4,19.5,19.6,18.9,18.6,18.5,18.6,18.7,18.7,18.4
1973,19.1,19.9,19.9,19.4,19,18.5,18,18.2,18.3,18.5,18.7,17.9
1974,18.4,19.7,19.9,19.5,18.6,18.8,18.1,18.2,17.6,18.1,18,17.7
1975,18.5,19.7,19.9,19.7,19.2,18.9,18.3,18.1,18,18.3,18,18
1976,18.3,19.2,19.7,19.4,19,18.7,18.3,18.1,18.5,18.5,18.9,18.9
1977,19.7,19.4,19.7,19.8,19.4,18.5,18.4,18.5,18.9,18.6,19,19.7
1978,18.9,20,18.4,20.6,19.9,19.1,18.2,18.5,18.5,18.9,19.2,18.9
1979,19.8,19.4,18.9,19.7,19.4,18.8,18.4,19,18,18.3,19,18.8
1980,19.4,20.9,20.5,20.8,19.7,19.2,19.2,18.2,18.9,18.5,18.8,18
1981,19.1,19.2,20.8,20.6,20.1,19.4,18.7,19.2,19.1,19,18.9,18.9
1982,20.6,18.9,20.6,20.8,20.1,19.8,19.2,19.2,19.6,19.3,19.4,19.4
1983,18.4,20.1,20.9,20.7,20.8,20.3,19.5,19.7,19.1,19.5,19.8,17.8
1984,17.4,19.4,20.6,19.9,20,19.4,18.7,18.7,18.8,18.5,19.1,19.1
1985,21,18.4,19.7,19.2,19.6,18.9,18.3,19,19.4,19.3,19.8,19.1
1986,18.6,20.3,19.8,20.3,20.2,19.1,18.7,19.1,19.3,19.5,19.9,18.7
1987,19.1,20.4,20.7,21,20,20.2,19.6,19.7,19.4,19.7,19.8,19.6
1988,19.5,20.5,20.6,20.2,19.5,19.6,18.5,19.2,18.8,19,19.1,17.8
1989,15.6,18.2,19.4,19.1,19.3,18.4,19.1,19.5,19.7,19.3,19,19.2
1990,19.2,20.5,20.2,20.7,20.3,20.2,19.1,19.2,19.3,19.4,19.5,19.7
1991,17.9,20.2,19.8,19.7,19.3,19.6,18.5,18,18.8,19.2,18.7,17.4
1992,18.6,19.7,20.2,20.8,19.3,19.6,18.8,18.1,18.9,19.1,18.9,18.6
1993,17.9,18.3,19.5,19.6,18.8,20,19.5,20.5,18.6,18,21.8,18.7
1994,17.7,19.6,19.7,19.9,19.9,19.1,18.4,18.5,18.6,19.2,18.6,17.8
1995,18.3,19.5,19.5,21.7,19.9,20.3,19.1,20.6,19.2,19.6,20.6,19
1996,19.8,19.6,19.4,20.1,19.7,19.2,19.2,18.4,19.1,19.7,19.1,18.6
1997,19.7,19.9,21.3,20.1,20.4,19.7,19.4,19.1,20.8,20.2,20.2,19.4
1998,19.2,19.9,20.8,20.4,19.6,19.6,19.1,18.8,19,19.4,19.3,18.2
1999,19.6,20.8,20.1,20.1,18.7,19.6,18.6,19,18.7,18.9,19.1,18.7
2000,19,20.3,20.2,20.9,21.5,19.6,19.2,20.5,18.4,19.2,20.7,19.1
2001,20.4,22.9,21.9,22.3,21.6,20.1,20.2,20.7,20.5,20.7,20.5,18.8
2002,20.3,22,21.7,22.3,22.1,21.4,21.6,21.2,20.9,19.4,21.5,20.6
2003,22.5,21.1,22.5,22.4,22.1,20.6,20.1,19.4,21.5,20.9,21.6,21.6
2004,22.6,21.5,21.4,20.4,21.3,20.8,20.2,20.2,19.4,19.8,19.7,19
2005,17.7,21.8,22.9,22.3,20.3,20.8,19.4,19.7,20.5,19.4,21.9,21.2
2006,20.5,21.9,22,22.1,18.7,19.3,20.2,20.5,18.7,20.7,21.8,19.9
2007,21.4,22.8,22.3,22.2,21.8,18.9,18.3,19.1,19.8,18.8,17.8,20.9
2008,22.1,23.2,22.3,21.2,21.2,20.4,19.6,20.5,20.9,19.6,20.9,18.2
2009,20.6,22.7,21.9,21.2,21.2,20,20.9,21,20.9,20.6,22,21.9
