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