1901,21.2,21.1,22.1,22.1,23.1,23.6,23.2,23.3,22.1,22.2,22.1,21.3
1902,19.5,20.7,21,22.1,22.7,23.6,23,22.9,22.1,21.9,21.7,21.7
1903,20.6,19.7,21.6,22.8,23.2,22.5,22.7,22.6,21.9,21.6,20.7,19
1904,18.5,18.8,20.6,21.4,22.6,23,22.7,23.1,22.4,22.2,21.1,20.2
1905,20.7,20.8,21.3,22.8,22.6,23,23,23.4,22.6,22.3,22,22.9
1906,21.4,21,21.3,23.2,23.7,23.4,23.1,23.3,22.8,21.9,21.1,21.1
1907,20,20.1,20.4,22,22.2,22.9,22.7,22.7,22.4,21.8,21.6,19.6
1908,19.9,19.7,20.7,22.1,22.5,22.9,22.7,22.7,22.3,22,20.7,20.7
1909,20,20,20.8,21.9,22.4,23,22.5,22.9,22.4,22.1,20.9,20.1
1910,20.4,19.3,20.2,21.8,22.6,22.8,22.9,23,21.9,21.8,21.4,19.9
1911,20.1,20.3,21.2,22.3,23,23.4,23.4,23.5,22.8,22.3,23.1,22.2
1912,20.8,20.8,21.9,23,23.7,23.5,23,23,22.6,22.2,21.6,21.5
1913,20.6,20.9,21.8,22.7,23.1,23,22.8,23.3,22.6,22.4,21.9,21.5
1914,20.3,20.7,21.5,22.7,23.9,23.2,23,23.1,23,22.8,22.8,22.1
1915,21,21.3,21.8,22.9,23.4,22.9,23.3,23,22.9,22.3,21.9,20.3
1916,19.6,20.2,21.7,22.8,22.9,23.1,22.9,23.1,22.6,22.3,21.5,20.6
1917,19.9,20,20.6,22.6,22.7,23.1,22.9,22.7,22.3,21.9,21.8,20.6
1918,19.5,18.7,20.9,21.9,22.4,22.8,23.4,23.2,22.9,22.2,22.5,21.5
1919,21.3,20.9,21.8,22.8,23.4,23.3,23.1,23.6,23,22.6,22,21.5
1920,20,20,21.8,22.6,23.3,23.4,23.2,23.2,22.7,22,22.4,20.8
1921,20.5,19.8,21.4,22.5,22.6,22.8,22.7,23.1,22.3,22,21.3,21.3
1922,20.7,20.3,20.5,21.8,22.8,23.1,22.6,22.8,22.8,22.1,21.7,20.9
1923,20.1,19.5,20.9,22.1,22.5,23.1,22.2,22.7,22.1,22.1,22.1,21.8
1924,20.9,20.1,21.4,22.3,22.9,23.1,22.6,23.3,21.9,21.2,21.9,20.2
1925,20.1,19.4,20.8,21.9,23,23.2,23.1,23,22.8,21.9,21.9,20.6
1926,20.4,20.4,21.3,23.2,23.9,23.7,23.2,23,22.5,21.9,21.8,21.3
1927,20.3,20.2,21.5,21.9,22.3,23,23,23,22.8,21.9,21.8,21.3
1928,21,20.2,21,21.7,22.9,23.1,23,22.9,22.6,21.8,21.8,21.8
1929,20.5,19.7,20.3,22.1,22.9,22.7,23.1,23.1,22.8,21.6,21.5,21.6
1930,19.9,19.5,20.4,21.6,23,22.8,23.3,23.5,22.8,22.4,22.1,21.3
1931,21,19.6,21.2,23,23.3,23.7,23.4,23.8,22.8,22.1,21.4,20.7
1932,19.5,19.8,20.6,22.2,23.1,23.2,23.3,23.4,22.6,22.4,22.2,20.6
1933,20.8,19.6,21,22.5,23.2,23.3,23.2,23.9,22.6,22.2,21.4,20.6
1934,19.9,19.5,20.7,22,23.6,23.3,23.4,23.3,23.1,22.2,21.9,20.3
1935,20.3,19.8,21.7,22.4,23,23.3,23.4,23.3,22.7,22.6,22,21.2
1936,20.4,20.2,20.7,22.6,23.6,23.1,23.2,23.1,22.9,22,21.7,21.8
1937,20.5,20,21.5,22.8,22.7,23.1,22.8,23.2,22.7,21.9,22.1,21.2
1938,20.9,20.6,21.3,22.6,22.7,23,22.7,23.3,22.9,22.4,21.4,21.1
1939,22.3,19.7,20.9,22.5,23.4,22.5,23.3,23.4,22.4,21.9,22,19.6
1940,18.1,19.2,20,22.3,22.9,23.7,23,22.9,23,22.4,22,21.5
1941,20.7,20.5,20.9,23.5,23.1,23.2,22.8,23.8,23.1,22.8,22.8,22.2
1942,20.1,20.2,21,22.4,22.7,22.8,22.5,22.7,22.3,22.2,21.5,20.8
1943,18.8,18.7,20.3,20.9,22.2,22.2,22.1,21.9,21.6,21.5,21,20.2
1944,20,19.9,20.5,22,22.3,22.4,22.3,22.6,22.4,21.9,21.2,20.1
1945,20.1,20.2,20.6,21.6,22.1,22.6,22.7,22.6,21.9,21.5,21.7,21
1946,19.9,20.3,21.4,22.1,22.7,23.1,22.6,22.6,22.2,21.8,21.7,21.8
1947,21.2,20.4,21.6,22.4,23,22.9,22.7,22.4,22.2,22.1,21.3,20.9
1948,21.4,20.8,22.5,23.2,23.8,24.2,23.6,24.1,23.3,22.9,22,21
1949,19.5,20.8,22.3,23,23.7,23.8,23.4,23.3,23.1,23,22.5,22.1
1950,21,21.2,22.1,22.8,23.6,23.6,23.1,23.4,22.4,22.7,22.6,21.1
1951,19.5,18.8,19.7,21.3,22.4,22.7,22.3,22.9,22.3,21.7,21.8,20.9
1952,20.1,19.8,20.5,21.6,22.4,23,22.6,22.5,22.3,21.9,20.9,19.1
1953,20.1,20,20.1,21.6,22.5,22.9,22.3,22.9,22.1,21.3,21.2,20.3
1954,20,19.3,20.6,22.1,22.6,22.7,22.1,22.7,22,21,20.6,20
1955,19.3,18.9,19.5,21.1,22.5,22.8,22.5,22.4,22.1,21.7,21,18.6
1956,18,18.5,19.6,21.7,22.5,22.5,22.5,22.7,22.5,21.3,20.5,19.7
1957,18.4,18.9,20.4,22.2,22.9,23.5,23,22.6,22.6,22,21.4,20.9
1958,20.3,19.9,21.1,21.9,23.3,23.2,23.1,22.5,22.9,22,20.6,19.8
1959,20,19.5,20.8,22.1,22.4,23,22.6,22.6,21.9,21.7,21.4,21.3
1960,20.5,20.5,21.1,22.4,22.7,23.1,22.8,23.5,22.2,21.9,21.6,20.7
1961,19.9,20.5,21.1,22.3,22.9,22.8,22.4,22.4,21.9,21.5,21.1,20.6
1962,20.5,19.3,20.7,21.7,22.7,22.6,22.6,21.7,22.4,21.8,21.4,21
1963,19.3,19.3,20.1,21.3,22.4,22.8,22.8,22.6,22.5,22.3,21.9,21
1964,21.1,20.7,20.8,21.6,22.7,22.5,22.4,22.6,22.3,21.7,21.2,20.5
1965,18.9,20.2,20.7,21.6,22.4,23,22.5,22.2,21.8,21.5,21.6,21.4
1966,20.4,20.6,21.5,22.2,22.8,22.5,22.1,22.7,22,22,22.1,21.7
1967,20.6,19.8,20.2,21.5,22.4,22.9,22.4,22.5,22.1,21.6,21.2,20.3
1968,19.2,18.9,19.8,21.1,22.5,22.8,22.8,23.1,22.2,21.6,21,21.2
1969,20.5,20.2,20.8,22,22.7,23.2,22.8,22.5,22.2,21.9,21.4,20.9
1970,20.6,20.1,21.2,22.3,22.7,23.1,22.4,22.7,22.2,22.1,21.6,21.2
1971,19.7,19.9,20.6,21.8,22.5,22.8,22.6,22.3,21.9,21.8,20.5,21
1972,19.3,19.8,20.3,21.7,22.4,22.8,23.1,22.5,22.3,21.8,22,21.5
1973,20.7,20.4,20.9,22.5,22.4,23.6,23,23.1,22,21.9,21.7,20.6
1974,18.9,19.8,20.2,22,22.2,23,22.5,23.1,22,22,21.8,20.2
1975,20.9,20.1,21.1,22,22.4,22.4,22,22.9,21.7,21.9,21.3,19.6
1976,19.1,18.3,20.4,21.5,22.3,22.3,22.4,21.9,21.8,21.5,20.8,19.9
1977,19.9,19.7,19.6,21.1,22,23,22.9,22.5,22.4,21.9,21.6,20.5
1978,20.7,20,21,21.9,23.2,23,22.6,23.1,21.6,21.8,21,20.8
1979,20.1,20.2,21.3,22.8,23.1,23.7,23,23.3,22.5,21.7,21.8,20.5
1980,19.9,19.8,21.5,22.5,23.3,23,23,22.5,22.4,22,21.7,20.9
1981,19,19.4,20.1,22,22.3,22.8,22.4,22.2,22.3,21.4,21.1,20
1982,19,19.5,20.2,21.9,22.1,23,22.1,22.1,22.1,20.8,21.1,20.3
1983,20.1,19.3,21.1,22.3,22.6,22.6,22.2,22.5,21.9,21.6,21.1,20.4
1984,20,20.4,20.7,22.1,22.2,22.7,22.2,22.8,21.5,21.3,21.1,21.3
1985,20,20.9,20.8,22.2,22.5,22.8,22.1,22.5,21.5,21.4,21.1,20.8
1986,19.9,19.6,20.9,22.1,22.7,22.6,22.4,22.8,22.2,21.4,21.3,20.6
1987,20.4,19.4,21,22.1,22.2,23.2,23.1,22.3,23,21.9,21.6,20.8
1988,20.5,21,21.3,22.2,22.7,22.4,22.3,22.5,21.9,21.5,21.3,20
1989,19.8,18.5,20,21.7,21.8,21.5,22.1,22.1,22.2,21.1,21,20
1990,19.7,20.3,20.9,22.7,22.8,23.5,22.5,23.1,22.1,21.9,21.8,21.3
1991,20.7,21,21.2,22.2,23,23.5,23.1,22.7,22.9,21.4,21.1,20.9
1992,20.2,20.1,20.4,22.2,22.7,22.9,22.5,22.8,22.3,21.5,21.1,20.7
1993,20.2,19.3,21.4,22.3,22.4,23.4,22.8,23.1,21.7,21.6,21.7,21.5
1994,20.4,20.9,21.6,22.1,23.3,22.8,22.7,22.1,22.2,21.6,21.5,21.3
1995,20.9,20.2,21.5,22.5,22.5,23.8,23,22.9,22.3,22.2,21.8,20.7
1996,20.7,21.5,21.6,22.4,22.7,23.7,23.3,23.1,22.8,21.6,22.2,20.8
1997,19.9,21.3,21.9,22,23.1,22.8,23.1,23.2,23.2,21.9,21.5,21.8
1998,21.1,21.8,21.8,22.5,23.5,24,23.4,22.9,22.9,22.7,22.1,21.8
1999,21,21,22.2,22.6,23.1,23.4,22.7,22.7,22.7,21.4,22.2,20.3
2000,20.9,20.5,21.9,22.3,22.7,23.3,23.3,23.4,23.2,22.6,22.4,21.8
2001,21.5,20.4,22,23,23.5,23.2,23.3,23.6,23.1,22.5,21.4,21.7
2002,21.6,21.2,21.8,22.4,23.4,24,23.2,23.1,22.3,21.8,22.7,22.6
2003,21,21.6,21.4,23,23.7,23.6,23.4,23.6,23.1,22.2,22.5,21.5
2004,21.1,21,22.3,23.5,23.5,23.8,23.7,23,22.9,22.2,23,21.4
2005,21.4,20.9,21.9,23.4,23.8,23.9,23.6,23.6,22.3,22.1,22,22
2006,21,21.5,22.2,22.7,23.1,23.5,24,23.7,22.8,22.5,22,22
2007,21.4,20.9,21.1,23.1,23,22.4,23.2,23.3,22.4,21.8,21.4,21.3
2008,21.6,21.1,21.7,22.4,22.3,23.3,23.1,23.1,22.4,22,21.8,21.1
2009,20.2,20.4,21.5,22.5,22.1,23,23.2,23.6,23,21.9,21.9,21.9
