1901,19.9,20.7,20.6,19.8,19.8,19.2,18.9,19.6,19.4,19.3,19.2,19.7
1902,19.8,20.7,20.5,19.8,19.6,19.1,19,19.6,19.3,19.2,19.2,19.7
1903,19.9,20.7,20.5,19.8,19.8,19.3,19,19.6,19.3,19.3,19.2,19.6
1904,19.8,20.6,20.4,19.7,19.7,19.1,18.9,19.5,19.3,19.2,19.2,19.7
1905,19.8,20.6,20.4,19.8,19.6,19.2,19,19.6,19.4,19.2,19.3,19.7
1906,19.8,20.6,20.5,19.7,19.7,19.1,18.9,19.6,19.4,19.3,19.3,19.5
1907,19.7,20.5,20.4,19.7,19.6,19.1,19,19.6,19.4,19.3,19.2,19.7
1908,19.9,20.6,20.5,19.7,19.7,19.2,19,19.6,19.4,19.3,19.2,19.6
1909,19.8,20.5,20.6,19.7,19.7,19.1,19,19.5,19.4,19.3,19.1,19.5
1910,19.7,20.5,20.4,19.7,19.6,19.1,18.9,19.6,19.5,19.2,19.2,19.7
1911,19.7,20.5,20.4,19.7,19.6,19.2,19,19.6,19.4,19.3,19.3,19.6
1912,19.9,20.7,20.5,19.7,19.7,19.1,19,19.6,19.4,19.3,19.2,19.7
1913,19.8,20.5,20.4,19.6,19.8,19,18.9,19.5,19.3,19.4,19.1,19.5
1914,19.8,20.5,20.5,19.7,19.6,19.1,18.9,19.5,19.4,19.3,19.2,19.7
1915,19.9,20.5,20.6,19.7,20.9,20.2,20.2,21.1,20.3,20.8,20,20.5
1916,20.2,20.7,20.5,20.7,20.7,19.9,19.7,19.6,20.1,19.4,19.2,19.3
1917,19.2,19.4,20.2,19.9,19.8,18.7,19.2,19.5,19.5,19.4,19.2,19.7
1918,19.7,20.3,19.2,19.3,18.6,18.4,19.1,20.2,19.6,19.8,19.1,19.7
1919,19.8,20.6,20.4,19.7,19.7,19.2,18.9,19.6,19.3,19.2,19.1,19.6
1920,19.8,20.6,20.5,19.8,19.7,19.1,18.9,19.5,19.3,19.2,19.2,19.6
1921,20,20.4,19.5,19.1,19,18.7,19,19.1,19.4,18.4,18.9,19.4
1922,19.7,20.1,19.6,19.7,19.2,18.2,18.4,19.4,19.2,18.8,18.4,19
1923,18.9,19.7,20,19.7,19.5,19,18.9,19.2,19.7,18.9,19.4,19.7
1924,20,21,21.8,20.5,19.9,18.4,18.2,20.1,18.9,18.9,19,19.1
1925,19.1,19.8,19.3,19.6,19.7,19.2,18.5,19.3,18.9,19.6,19.2,20.1
1926,20.2,21.4,21.1,21.1,20.8,19.6,19,19.5,19,19.5,19.2,19.4
1927,19.6,20,20.2,18.8,18.9,18.5,17.8,19.5,18.8,19.4,19.5,19.1
1928,19.6,20.6,20.3,20,19.8,18.9,19,19.3,19.3,19.5,19,19.5
1929,19.6,20.8,20.7,19.4,19.2,19,18.9,19.4,19.5,19.7,19.3,19.5
1930,19.5,20.3,20.7,19.7,19.5,18.8,18.8,19.3,19.2,19,19.6,20
1931,20.3,21,21.3,20.4,20.3,19.4,18.8,19.6,19.3,19.5,19.3,19.6
1932,19.8,20.5,20.3,20.4,19.4,19.1,18.6,19.6,19.4,19,19.4,19.7
1933,19.9,20.4,21.1,20.2,19.9,19.3,19.3,19.8,20,18.8,19.1,19.9
1934,19.8,20.1,20,20.6,20.1,19.5,19.2,19.8,20.9,19.4,19.7,20
1935,19.9,20.7,20.4,20.6,19.4,19.1,19.1,19.4,19.9,19.6,19.1,19.8
1936,20.4,21.1,21.2,20.6,20,19.2,19.5,20.7,20.1,19.6,19.9,19.7
1937,19.9,20.7,21.4,20.7,19.9,19.3,19.2,19.9,19.7,19.7,19.8,20.5
1938,20,20.8,19.7,19.3,19.2,19,18.9,19.1,19.6,19.5,19,19.5
1939,19.6,19.7,20.1,19.5,20,19,19.2,20.2,19.9,19.5,19.6,20.8
1940,20.6,22.1,21.5,20.8,20.8,19.7,19.9,20.5,20.2,19.9,19.5,20.2
1941,20.7,22.3,22.3,21,20.4,19.5,19.2,20.4,20.6,20.8,20.8,21.3
1942,19.5,19.7,20.3,19.1,19.9,19.9,19.9,20.5,20.5,20.1,18.5,20.5
1943,20.2,20.5,19.8,19.8,19.2,18.5,19.3,19.5,20.5,19.7,19.8,20.3
1944,20.7,21.2,21.2,21,19.5,18.9,19.6,20.2,19.8,19.7,19.6,20.3
1945,18.9,19,20,17.2,17.3,17.5,17.5,18.6,18.6,18.6,18.7,19.8
1946,19.5,20.4,20.4,18.7,18.3,18.3,17.8,18.5,19,19.4,19.3,20.8
1947,20.5,21.6,21.9,20.4,19.8,18.4,18.4,19.2,19.3,19.1,20.1,20.6
1948,20.1,20.6,20.6,18.8,19.4,18.5,18.4,19,19.7,19.9,20,20.7
1949,19.9,20.3,20.2,20.3,21.1,20.3,19.6,20.1,19.9,19.8,20.4,20.6
1950,19.8,20.9,20.9,19.5,19.2,18.5,18.2,19.1,19.3,18.9,19.4,19.9
1951,18.6,18.7,19.1,19.5,19.2,18.4,18.4,19.5,19.6,19.7,19.1,19.5
1952,19.3,20.4,20.8,19.6,19.4,18.8,19.4,20.1,21.1,20.5,19.7,21
1953,20.9,21.1,21,21.1,19.6,20.1,19.1,19.8,20.7,20.4,20.3,20.9
1954,20.1,21.1,21.6,19.4,19.9,19.2,18.3,18.8,20,19.7,19.4,19.6
1955,20.8,20.5,19.7,20.2,20.9,20.9,18.8,21.4,20.9,21.4,22,22.1
1956,19.4,19.8,20.4,20.2,20.2,19.7,19.3,20,20.8,20.6,20.9,20.9
1957,21.1,21.7,22.9,22.1,21.5,19.8,20.3,21,21.3,21.1,21.3,22
1958,23.1,24.4,25.2,21.2,20.4,20.5,19.7,20.8,21.5,20.6,21.6,22.1
1959,21.9,22.7,23.1,22,20.5,20.5,19.7,20.1,20.4,20.3,20.2,21.7
1960,22.3,22.7,22.5,21.8,20,20.9,20.3,20.5,20.2,20.8,20.6,19.5
1961,20.6,21,21.2,21.2,21.6,19.7,19.1,20.5,19.8,20,18.8,20.3
1962,20.3,21,20.8,20.7,19.7,18.8,19.7,19.2,19.9,19.5,19.1,19.9
1963,19.7,20.6,20.3,19.1,18.3,19.4,19.3,19.5,20.1,20.4,19.3,21
1964,20.7,21.8,21,19.3,20,17.9,17.9,19.1,19.4,19.2,19.4,19
1965,18.4,20.4,21.6,19.3,18.8,19.2,19.5,19.2,19.3,19.3,18.7,20.1
1966,21,21.2,21.3,20.6,19.8,18.7,18.6,19.6,19.6,19.4,18.2,18.4
1967,19.2,19.9,19.4,18.1,19.2,18.4,17.8,19.3,19.5,19.6,19,19.5
1968,19.4,20.5,19.9,18.6,19.1,17.7,17.9,18.9,19.2,19.2,19.4,19.9
1969,19.5,20.7,22.5,20.3,21.3,20.5,20,19.8,20.3,19.2,19.5,20.2
1970,19.7,21.5,21.3,20.9,19.9,18.9,18.7,18.9,18.5,19,18.7,19.3
1971,18.9,19.3,19.1,18.9,18.5,18.4,18.5,18.4,18.4,18.8,18.6,18.9
1972,18.1,19.8,19.3,18.3,19,19.3,19.6,19.5,20.4,20,19.5,19.8
1973,21.5,21.3,21.8,21.2,20.3,18.8,18.7,19,18.4,18.9,18,18.3
1974,18.2,19.4,18.5,19.6,18.9,19.9,18.9,19.3,18.4,18.8,18.9,19.6
1975,19,20.5,20.1,19.4,18.9,18.9,18.2,18.7,18.8,18.6,18.5,17.4
1976,18.1,18.5,18.5,19.1,19.1,18.1,18.6,19.8,20.4,18.9,19.2,20
1977,20.5,21.7,21.1,20.3,19.9,18.7,19.1,19.6,20,19.9,19.6,20.6
1978,20.3,20.7,20.4,18.9,19.6,18.5,19.5,19.8,19.8,19.6,19.9,19.4
1979,20,21.3,20.6,20.2,20.1,19.1,19.5,19.7,19,19.7,19.2,19.3
1980,20.2,20.4,21.5,21.1,20.2,19.9,19.7,20.3,20.1,20.1,19.8,20.9
1981,20.9,21,21.3,19.1,19.2,18.7,19.2,19.9,19.6,19.8,20.5,20.7
1982,20,20.1,20.2,18.8,19.6,19.8,19.3,20.9,20.4,19.5,19.5,20
1983,21.4,22.7,22.6,20.5,19.9,20.5,20,20.6,20.2,19.6,20.6,19.5
1984,19.5,20.7,21.1,21.4,19.9,19.6,18.9,19.3,18.5,19.6,19.2,19
1985,19.3,20.6,19.7,20,19.8,19.7,19.5,19.5,19.4,19.7,18.9,19.4
1986,20,19.5,20.3,19.9,20.1,19.7,20.3,20.5,19.9,19,19.4,20.5
1987,21.3,22.5,22.3,22.1,20.7,21.2,19.9,20.7,20.6,19.9,20.8,21.3
1988,21.2,21.5,21.4,21.1,21.5,19.7,19.5,19.1,19.2,19.5,19.2,19
1989,19.5,20.2,19.1,20.3,19.7,19.3,19.3,20,19.3,19.9,20.1,20.4
1990,20.2,19.8,19.5,20.3,19.5,20.1,20.1,20.5,19.9,19.1,19.5,19.4
1991,19.8,21,20.1,19.9,19.8,19.8,19.6,20.4,20.6,19.9,19.6,19.5
1992,20.8,21.6,21.9,21.5,20.8,20.6,19,19.6,19.7,20.4,19.7,19.6
1993,20,20.9,21.1,20.3,19,20.2,19.7,20.4,19.6,20.6,19.9,20.5
1994,20.1,20.9,20.6,20.2,19.7,19.6,19.1,19.7,20.2,19.4,20,20.8
1995,21.4,21.8,21.1,20.7,20.8,19.9,19.4,20,20.7,19.7,20.2,20.7
1996,20.6,21.5,21,21,19.7,19,18.7,20.3,20.4,19.4,19.4,20.1
1997,19.8,20.2,20.4,21.2,21,19.6,20.5,21.5,20.8,21.1,20.9,22.3
1998,22.7,22.5,21.9,20.9,20.7,20.1,19.9,20.5,20,20.6,19.9,19.6
1999,19.8,19.5,20.2,20.4,20.9,19.9,19.6,20.2,19.4,20.2,20.6,19.9
2000,19.4,20.1,19.9,21,20.7,19.8,19.8,20.4,19.5,20.7,19.8,21
2001,21,21.3,21.5,20.8,21.4,20.3,20.6,20.8,21.1,20.9,20.7,21.3
2002,21.3,21.3,21.2,20,21.6,20,20.8,21.7,21.9,20.1,18.8,21.8
2003,22.7,22.8,22.2,21.5,21.1,19.7,19.6,19.7,20.8,20.7,21.1,21
2004,20.5,22.1,22.5,20.5,20.5,21,19.9,21.3,19.2,20.9,20.5,21.1
2005,20.1,20.9,22.8,22,20.9,21.3,21.2,21.5,21.5,20.7,20.1,20.5
2006,21.1,21.6,19,20.3,18.4,20.4,20.3,21.2,21.3,21,21,21.1
2007,19.2,22.5,21.2,21,21.3,20.4,20.5,20.2,19.9,20.2,20.5,21.7
2008,20.5,21,20.7,20.8,20.1,20.2,19.7,20.1,21.2,20.1,19.1,20.7
2009,21.2,20.3,19.7,21.3,21.4,21.2,20.8,21.7,20.4,21.5,20.4,21.9
