1901,20.1,21,21.1,21.4,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1902,20.3,20.6,21.3,21.3,21.4,21,20.7,21.1,20.7,20.7,20.7,20.1
1903,20.6,21.2,21.6,21.4,21.3,20.6,20.7,21,20.7,20.7,20.7,20.1
1904,20.3,20.7,21.1,21.3,21.1,20.8,20.7,20.5,20.7,20.7,20.7,20.1
1905,20.4,20.9,21.7,21.9,21.6,20.7,20.7,21.1,20.7,20.7,20.9,20.2
1906,20,21,21.9,22.4,21.3,21,20.7,20.8,20.9,20.8,20.8,20.3
1907,20.1,20.9,21.6,21.5,21.6,20.9,20.7,21.3,20.8,20.9,20.7,19.9
1908,20,20.6,21.5,21.7,21.6,20.4,20.8,20.2,20.7,20.7,20.6,20
1909,20.3,21.2,22,21.9,21.3,21.3,20.6,21.4,20.7,20.5,20.7,20.1
1910,19.8,20.7,21,21,21.1,21.6,20.8,20.9,20.8,20.7,20.7,20.1
1911,20,20.8,21.8,21.6,21.5,21.2,20.7,21,20.7,20.7,20.8,20
1912,20.4,21.5,22.1,22.3,21.9,21.7,20.8,21.3,20.8,20.7,20.6,20.1
1913,20.2,20.7,21,21.3,21.3,20.8,20.9,21.2,21,20.7,20.7,20.1
1914,21,21.1,21.8,21.8,21.7,21,20.9,21,20.8,20.8,21,20.2
1915,20.3,21.1,21.6,21.6,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1916,20.3,21.1,21.6,21.6,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1917,20.3,21.1,21.6,21.6,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1918,20.3,21.1,21.6,21.6,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1919,20.3,21.1,21.6,21.6,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1920,20.3,21.1,21.6,21.6,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1921,20.3,21.1,21.6,21.6,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1922,20.3,21.1,21.6,21.6,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1923,21.1,21,21.3,21,21.6,21.1,20.5,20.4,20.7,21,21.2,20.6
1924,20.7,22.4,21.5,21.4,21.7,21,20.2,20.4,20,20.7,20.7,19.9
1925,18.9,20.4,21.3,21.4,21.3,20.7,20.7,20.5,20.7,20.4,21.2,20.3
1926,20.8,21.1,21.4,21.3,21.2,20.9,21,21.4,21.5,21.4,21.5,20.7
1927,20.6,21.5,21.1,21.4,21.9,21.1,20.7,20.5,21.4,21,21.1,20.8
1928,20.6,20.3,21.2,20.9,21.1,20.7,20.8,20.2,20.9,20.9,21,19.9
1929,19.8,21.3,20.9,20.7,21.6,20.3,19.9,20.1,20.2,20.6,21,19.1
1930,20,21.5,21.6,21.7,21.5,21,20.6,21.1,21,21.3,21.2,21.4
1931,20.7,21.9,21.4,22.5,21.8,21.1,20.8,21,20.6,21.4,21.6,21.2
1932,20.3,21.7,22.7,22.3,21.7,21.2,20.7,21.1,20.8,21.2,21.4,20.4
1933,20.7,21.5,22.1,21.8,21.3,20.6,20.5,20.7,20.7,20.6,21.7,20.7
1934,20.3,21,21.6,21.5,21.6,21.2,20.9,20.8,21.2,21.6,21.8,20.5
1935,21.2,21.7,22.6,21.9,22,20.8,20.9,20.7,20.8,20.5,21.6,20.9
1936,20.2,22,22.7,21.2,21.6,20.9,20.2,20.1,20.4,20.9,21.6,20.1
1937,20.2,21.3,22,21.7,21.4,21.3,20.6,21,20.9,21.5,21.4,20.8
1938,20.7,21.5,21.8,22.3,22.3,21.7,21,20.7,20.8,21.1,21.9,20
1939,20.9,21.9,22.3,21.3,21.5,21,20.9,21,20.7,21.2,21.2,21.1
1940,20.3,21.1,21.6,21.6,21.4,21,20.7,20.9,20.7,20.7,20.7,20.1
1941,22.3,21.8,23,22.7,22.5,22,20.5,21.2,21.3,21.7,21.1,21
1942,22,22.7,22.3,22.4,21.2,21.7,21.1,20.6,21.3,21.3,21.3,20.7
1943,20.9,21.2,21.8,21.7,20.7,20.1,20.5,20.5,20.5,21.2,21.6,21
1944,19.9,21.1,21.8,21.5,21.7,22,21.4,20.6,21.2,21.2,21,21.2
1945,21.7,20.8,21.5,21.5,21.3,21.8,21.1,20.3,21.1,20.9,21,19.7
1946,21.8,21.3,22.1,22.4,21.2,20.8,20.6,20.3,20.2,20.4,21.2,20.1
1947,20.8,22.8,21.9,21.9,22,22,21.3,21.5,21,21.2,20.7,20.8
1948,20.7,20.9,20.9,21.4,21.2,20.9,20.5,20.8,21.1,20.7,20.5,20.4
1949,21,21.3,22.3,22.2,22.1,21.9,21.1,20.9,21.5,21.1,21.1,19.4
1950,21.1,20.4,21.4,21.6,21.6,22.3,20.5,19.8,20.3,20.3,20.6,20.7
1951,19.6,20,21.2,21.5,21,21,20.4,21.2,20.2,20.3,20.3,21.2
1952,20.3,20.6,21.1,21.7,21,21.2,20,20.5,20.1,20.2,19.6,20.4
1953,19.9,20.4,20.9,21.1,20.5,20.6,19.9,20.4,20.4,20.3,19.8,20.1
1954,19.9,20.5,20.9,22,20.6,21,20.4,19.8,20.1,20,20.3,20.4
1955,19.7,20.3,20.7,21.4,20.5,20.6,19.7,20.1,20,19.8,19.8,19.9
1956,19.3,20.6,21.8,21.5,20.4,20.6,20.5,19.9,19.8,19.7,19.6,20.2
1957,19.4,20.3,20.3,21.9,21.1,21,19.9,21.1,20.2,20,20.6,20.8
1958,20.5,20.4,21.2,22.3,20.7,20.9,20.5,20.8,20,20.2,20.4,20.8
1959,20,20.5,21.4,22.2,20.8,20.7,20.2,21.1,20,20.3,19.8,20.8
1960,20,20.4,21,21.7,20.8,21.2,20.1,21.8,20.2,20.3,20.1,21
1961,20.7,19.4,20.6,21.9,20.7,21.7,19.6,20.8,20.1,20,19.1,19.1
1962,18.9,20.7,21.6,22.2,20.9,21,20.6,20.4,20.1,20.4,20.8,20.8
1963,19.8,21.8,20.5,21.9,21.1,21.6,20.6,21.5,21.3,20.4,20.1,20
1964,20.6,20.1,21.6,22.5,20.8,20.7,20.2,20.2,20.2,19.4,19.8,20.5
1965,20.7,20.1,20.5,21.4,20.4,21,20.7,20.3,20.1,20.3,19.6,19.7
1966,20.4,20,21.1,22,20.7,21,21,21.2,20.5,20.5,20.6,19.8
1967,20.3,21.4,21.8,22,20.9,21.3,20.2,21,19.9,20.5,20.8,20.9
1968,20.2,20.4,21.2,21.4,20.9,20.9,20.3,21.3,21.1,20.9,21.3,21.2
1969,20.1,21.2,22.9,22.9,22,21.5,20,22,20.4,20.7,20.4,20.9
1970,20.5,21.1,21.2,22.6,21.3,21.3,20.8,21.1,20,20.6,20.6,19.1
1971,19.8,20.9,21.6,21.1,20.7,20.5,20.7,20.3,20.2,19.9,19.6,18.9
1972,19.9,20.9,21.8,21.2,21.7,20.1,21.1,21.1,20.9,20.6,20.6,20.5
1973,21.8,22.4,22.2,21.3,21.1,21.1,21.5,20.8,20.9,20.9,20.5,20.8
1974,20.3,21,21.3,21.4,21.4,21.3,20.2,20.7,20.1,20,20.4,18.9
1975,19.7,20.8,21.9,21.6,21.5,20.5,20.4,19.8,20.3,20.4,21.1,19.6
1976,20.5,20.8,21.7,21,21.3,20.3,20.5,20.1,20.2,20.8,21,20.1
1977,20.9,21,21.4,22.2,21.6,21.1,21.3,20.4,21.2,21.2,20.2,19.7
1978,20.3,21.8,21.9,21,21.7,20.4,20.8,20.4,20.8,21.1,21.2,19.1
1979,20.8,22.2,22.4,21.5,22.2,21.1,21.4,20.7,21.4,21.6,22.2,20
1980,21.7,22.2,22.3,22.3,22.2,21.2,21,20.9,21.4,21.1,21.7,19.1
1981,18.3,20.8,21.8,21.7,21.6,21.5,20.4,20.9,20.8,20.9,19.8,20.1
1982,20.5,20.3,21.2,21.4,22.5,20.8,20.2,20.6,20,20.5,20.5,20.1
1983,19,22,21.5,21.9,21.4,21.5,20.5,20.9,20.8,20.4,20.6,20.6
1984,19.9,21,21.4,21.1,21.2,20.4,20.9,21,20.3,20.5,20.7,19.8
1985,21.4,20.7,21.4,20.9,20.8,21.2,20.5,20.5,21.1,21,21.3,20.5
1986,19.6,21.8,21.6,21.6,21.2,20.7,20.2,20.8,20.9,20.5,21.3,19.8
1987,20.7,22.2,21.7,20.8,22.1,21.7,21.2,21.3,21.4,20.9,21.4,20.9
1988,21,21.7,22.4,21.8,21.7,20.8,20.7,20.8,20.6,21,20.8,20.6
1989,19.3,20.4,20.7,20.7,20.9,21.6,20.8,21.6,20.9,20.8,21.2,20.3
1990,21.7,21.1,20.9,22.1,21.5,22,21,21.4,21.2,21.3,22.3,22.3
1991,21.2,21.7,22.4,22.1,21.3,21.6,20.8,21,21.2,20.3,21.1,19.8
1992,19,20.9,22.1,22.3,21.7,20.7,20.5,21.3,20.4,20.3,20.7,20.1
1993,19.7,20.5,21.6,21.5,21.8,20.9,20.6,21,20.8,20.7,21.1,20.2
1994,20.3,21.2,21.8,22.3,21.3,20.9,20.4,21.2,20.4,20.8,21.7,20.1
1995,20.6,20.6,20.8,22.4,21.7,21.6,22,21.4,20.7,21.4,21.4,20.8
1996,21.9,22.9,22.9,21.4,20.1,21,21.4,20.9,20.9,21.1,20.7,20.2
1997,20.8,20.2,21.8,20.8,20.9,21.2,20.4,21.7,21.4,21.2,22.1,20.6
1998,20.4,22.4,23,23,22.1,22.1,21.3,20.7,21,21,22,20.9
1999,21,22,22.7,21.9,21.1,21.2,20.5,21,20.4,20.1,21.1,20.5
2000,20.6,20.4,21.7,21.6,22,21,20.5,21.3,20.1,20.9,21.1,19.9
2001,20.1,21.1,21.6,21.3,21.7,21.3,21.2,20.4,19.8,19.8,22.1,21.2
2002,20,21.3,21.5,21.6,22.3,21.4,21.2,21.6,20.9,19.9,21.5,20.8
2003,20.9,22.6,21.9,22.3,21.9,21,20.9,21.1,21.4,21.3,21.8,20.6
2004,21,21.2,22.3,22,21.5,21,20.6,21.1,21,21.1,21.4,21.4
2005,20.7,23.2,23.1,22,21.9,20.5,20.6,21.3,21.4,21.8,21.1,21.1
2006,21.6,21.8,21.4,21.8,21.9,21.7,21.4,21.3,20.9,21.2,21,19.4
2007,20.3,21.7,21.7,21.2,21.8,21.2,21.1,21.6,21.2,20.9,21.8,20.7
2008,19.8,20.5,21.6,21.4,21.2,21.4,20.9,21.4,21.2,21.4,21.2,21.6
2009,21.2,21.8,22.2,22.7,22.5,21.5,21.2,21,21.3,21.9,21.3,20.9
