1901,20.2,20.6,21,22.2,23.1,22.8,22.2,22.6,22.6,22.5,21.9,21.1
1902,20.2,20.6,20.7,21.9,22.7,22.7,22.3,22.6,22.5,22.4,21.8,21.1
1903,20.4,20.4,20.7,22,23.1,23.2,22.4,22.5,22.5,22.5,21.9,21
1904,20.2,20.1,20.6,21.6,22.8,22.8,22.2,22.2,22.3,22.3,22,21.1
1905,20.2,20.1,20.7,22.1,22.7,22.9,22.3,22.6,22.5,22.4,22.2,21.1
1906,20.1,20.2,20.8,21.9,22.9,22.7,22.3,22.6,22.5,22.5,22.1,20.7
1907,19.8,19.8,20.4,21.6,22.6,22.8,22.4,22.5,22.5,22.5,22.1,21.1
1908,20.2,20.2,20.7,21.8,22.8,22.9,22.5,22.8,22.6,22.5,22,21
1909,20.1,20.1,21,21.7,22.8,22.6,22.3,22.3,22.6,22.5,21.8,20.7
1910,19.9,19.9,20.6,21.6,22.5,22.7,22.3,22.5,23,22.3,22,21.2
1911,20,20,20.4,21.6,22.5,22.8,22.3,22.7,22.6,22.5,22.2,21.1
1912,20.3,20.4,21,21.8,22.9,22.8,22.5,22.6,22.6,22.4,22,21.1
1913,20,19.9,20.4,21.5,23.1,22.4,22,22.1,22.4,22.8,21.7,20.7
1914,20,20.1,20.7,21.6,22.6,22.5,22.1,22.2,22.5,22.4,22,21.3
1915,20.2,20.1,21,21.7,23.6,23.7,23.4,23.7,23.3,23.7,22.6,21.7
1916,20.4,20.2,20.7,22.4,23.5,23.3,22.8,22.6,23,22.4,21.9,20.6
1917,19.5,19.3,20.3,21.7,22.8,22.7,22.5,22.4,22.5,22.8,22.1,20.9
1918,19.8,19.9,19.8,21.3,22,22.4,22.5,22.9,22.9,22.7,21.8,20.8
1919,20,20.1,20.6,21.7,22.9,22.8,22.1,22.5,22.4,22.3,21.7,20.8
1920,20,20.3,20.8,21.8,22.9,22.6,22.1,22.3,22.4,22.3,21.8,20.8
1921,20.3,20.1,20.2,21.2,22.5,22.6,22,22.2,22.5,21.9,21.7,20.8
1922,19.9,19.8,20,22.1,22.3,22.1,21.8,22.2,22.4,22.2,21.4,20.3
1923,19.2,19.3,20,21.6,22.7,22.3,22.1,22.2,22.8,22.3,22,20.7
1924,20,20.3,21.6,22.5,23.1,22.3,21.8,22.8,22.1,22.1,21.8,20.6
1925,19.3,19.4,19.9,21.7,22.9,22.7,22,22.3,22.3,22.8,21.8,21.3
1926,20.4,20.7,21.2,22.7,23.6,23.4,22.3,22.5,22.2,22.6,22,20.6
1927,19.8,19.4,20.4,20.9,22,22.2,21.5,22.4,22.2,22.4,22.1,20.6
1928,19.8,20,20.5,21.7,22.7,22.5,22.2,22.3,22.4,22.5,21.9,20.7
1929,19.7,20.2,20.8,21.4,22.1,22.5,22.1,22.4,22.5,22.7,21.8,20.6
1930,19.8,19.9,20.9,21.8,22.8,22.6,22.3,22.5,22.5,22.4,22.3,21.2
1931,20.5,20.5,21.6,22.5,23.6,23.3,22.5,22.7,22.7,22.9,22.2,21.1
1932,20.1,20.1,20.8,22.5,22.8,22.9,22.3,22.8,23,22.5,22.2,21.1
1933,20.5,20,20.9,22.3,23.7,23.3,23.2,23.2,23,23.2,22.4,21.1
1934,19.8,19.3,20,22.5,24,23.2,23,23.6,23.5,23.4,22.7,21.7
1935,20.4,20.5,20.6,21.9,23,23.7,22.9,22.8,23.3,23.1,22.4,21.1
1936,20.2,19.7,21.1,22.2,23.7,23.4,23.2,23.6,23.3,23.2,22.9,21.2
1937,20,20.1,21.5,22.7,23.3,23.3,22.7,23.2,23.3,23.2,22.8,21.8
1938,20.7,20.5,20.5,21.2,22.3,22.6,22.4,22.9,23.1,23.2,22.4,21.6
1939,20,19.4,20.2,21.4,22.9,22.9,22.7,23.2,23.5,23.5,22.6,22
1940,20.8,21.5,21.9,22.9,24.3,23.9,23.4,23.5,24,23.7,22.7,21.9
1941,21.4,21.9,22.7,23.3,24.2,23.3,23.1,23,23.5,23.7,23.1,22.1
1942,21.7,21,22.7,23.6,23.1,23.7,23.4,23.9,23.8,23.6,23.1,22
1943,21.2,20.6,20.8,22.4,22.1,23,22.2,23.8,23.7,23.7,22.9,22.1
1944,21.1,20.3,21.1,22.7,23.5,23.7,23.5,23.9,24,24,22.9,21.6
1945,20.3,20.6,21,22.6,23.5,23.4,23,23.7,23.5,23.5,22.3,21.2
1946,20.7,20.4,21.3,21.6,22.9,23,23,23,23.1,23,22.2,21.4
1947,20.9,20.8,20.9,22.5,23.7,23.5,22.8,23.6,23.7,23.1,22.6,21.5
1948,20.5,20.6,21.1,22,23.5,23.5,22.8,23,23.2,22.9,22.4,21.1
1949,20.6,20.7,21.1,22,22.4,21.5,21.2,22.7,22.3,22.2,21.1,20.5
1950,19.7,19.2,19.5,21.5,22.2,22.4,21.8,22.5,22.7,22.4,22.2,21.3
1951,19.4,19.5,20,22.4,23,23.2,22.6,23.1,23.4,23.6,22.7,21.8
1952,20.4,20.7,21.5,22.3,23.6,23.7,22.3,22.3,22,22.7,21.4,20.6
1953,19.7,19.2,19.9,21.9,22.3,23.1,22.3,22.8,22.2,22.1,22,20.3
1954,19.5,19.6,20.7,21.4,22.1,22.3,21.9,22.8,22.2,21.1,20.8,19.8
1955,18.5,19.2,18.8,20,21.9,21.8,22.7,21.5,21.3,21.5,20.6,19.2
1956,19.3,20,20,21.4,21.6,22.4,21.7,21.7,21.3,21.3,20.6,19.2
1957,17.7,18.8,18.8,20.4,21.4,23.2,22.1,22.4,22.1,21.8,21.1,20.9
1958,20.1,19.6,21.1,23.3,23.7,23.4,23.1,23.3,23.1,23.1,21.4,20.4
1959,19.2,18.9,20.9,22.5,22.7,22.9,22.3,22.3,22.9,22.9,21.6,22.1
1960,20.1,20.6,20.6,22.6,23.2,23.2,22.6,22.7,22.8,22.7,22,21.1
1961,19.9,19.4,20.5,22,22.7,23.1,22.5,23,22.4,22.6,22.1,20.7
1962,19.7,19.1,21,21,22.8,22.8,22.5,23.2,23,22.7,21.6,20.4
1963,19.5,20.2,20.3,21.4,22.6,23.1,22.5,23.1,23,23.1,22,21
1964,18.7,19.6,19.9,22.1,23.1,23.3,22.6,23.1,23.2,22.2,21.7,19.5
1965,19.9,19.6,19.7,20.8,22.7,22.6,22.6,22.3,23.2,22.7,22.8,22.1
1966,20.5,19.9,20.6,21.8,22.8,22.9,23,22.7,22.6,22.4,22.3,21.1
1967,19.9,19.8,20,21.7,22.3,22.7,22.3,22,22.5,22.2,21.5,20.8
1968,19.3,19.7,19.8,21.8,22.4,22.7,22.2,22.4,22.6,22.5,21.7,20.4
1969,20.6,21.5,21.8,23.1,23.4,24,23.1,22.8,23.6,22.4,22.4,21.7
1970,20.6,20.1,21,22,22.8,23.2,22.7,23,22.3,22.7,21.2,21.7
1971,19.8,19.8,20.2,22.3,21.8,22.2,21.9,21.9,22.4,22.1,21.3,20.1
1972,20.6,19.5,21.1,21.6,22.8,23.5,23.3,23.4,24,22,22.4,21.9
1973,20.8,20.7,21.8,21.9,22.9,23.8,23.4,23.1,23,22.7,21.9,20.2
1974,18.9,19.8,20.2,21.3,22.4,23.4,22.4,22.3,22.2,22.2,22.3,20
1975,19.6,19.3,20.8,20.9,22.5,22.5,21.7,22.4,22.2,21.9,21.6,20.3
1976,18.9,19.4,20,21.4,22.5,22.6,22.2,22.5,22.8,22.7,22,20.4
1977,19.9,20.4,21.9,22.1,24.3,22.8,22.9,23.1,23.4,23.4,22.8,20.3
1978,18.9,20.5,21.6,22.8,23.4,22.5,22,22.3,22.4,22.2,22.2,20.4
1979,19.2,19.1,21.4,22.3,23,23.3,22.5,22.5,22.4,23.1,23.1,22.8
1980,21.4,20.3,21.1,22.9,23.5,23.5,23.2,23.4,23.3,23.9,22.5,22.7
1981,21.8,23,21.6,22.6,23.3,23.2,22.3,22.4,22.5,22.9,22.6,22.4
1982,20.5,21.3,20.6,22.6,22.8,23.6,23.3,23.3,23.5,23.4,23.1,23.1
1983,22.8,22,23.8,24.4,24.3,22.6,22.7,23.8,23.6,23.3,23.2,22.3
1984,22.5,23,22.5,22.7,23.2,24.3,23.6,23.8,23.7,23.8,21.9,22.3
1985,21.1,21.8,22.7,23.6,24.5,23.7,22.4,22.3,22.6,22.7,21.5,20.7
1986,20.6,19.9,20.7,22.9,22.8,22.5,22.2,22.2,22.2,22.2,21.9,20.8
1987,20.9,22.4,23.3,24.3,23.9,24.3,24,23.4,24.3,24.1,23.4,22.5
1988,20.4,21.4,21,23.1,23.8,23.3,23.6,23.5,23.4,23.2,22.8,21.4
1989,20.9,20.7,21.4,21.8,23.7,23.4,23.8,24.4,24.3,23.5,22.1,20
1990,20.6,20.1,21.3,22.8,22.7,23.2,21.4,22,22.2,22.7,21.9,20.1
1991,19,20.5,20.8,21,21.9,22.2,21.4,23.4,22.9,23.5,22.7,20.9
1992,21.1,21.4,22.2,23.8,23.9,24.1,23,23.8,22.8,23.8,23.1,21.8
1993,21.5,21.7,22,23.1,24,24,23.2,23.5,23.5,23.8,22.7,22
1994,20.3,21.5,22.2,22.9,24.1,23.9,23.3,23.7,24,23.9,23.3,22.4
1995,21.2,21.4,22.7,23.2,24,24.4,23.6,23.9,23.4,23.3,23,22.5
1996,20.8,22.3,21.6,22.4,23.5,23.6,23.2,23.5,23.7,23.2,23,21.7
1997,20.3,21.1,20.2,22.5,23.5,24,23.5,23.2,23.7,24.1,23.2,22
1998,21.9,23.2,23.2,24.2,24.2,24.3,23.5,24.6,24,24.1,23.5,22.8
1999,21.4,21.8,22.5,23.1,23.3,24,23.6,23.8,23.4,24,23.7,21.8
2000,20.5,20.4,21.8,22.8,23.7,22.9,22.8,23.4,23.8,23.8,21.9,21.9
2001,21,20.7,21.9,22.7,24,24.5,24.2,25,24,24.4,23.8,23.8
2002,21.4,21.5,22.4,22.5,23.1,23.4,22.9,23.7,24.3,24.2,23.7,23.5
2003,22.1,22.9,22.9,24.2,24.5,24.9,24.2,24.7,24.8,24.9,23.5,24
2004,21.2,21.4,22.3,23.6,23.5,23.1,22.9,23.3,23.3,23.1,22.3,22.6
2005,22.1,20.7,22.5,24.8,24.3,24.2,24.1,23.9,23.9,23.9,23.1,21.2
2006,20.6,21.2,22,21.5,23.7,24.2,23.8,24.3,24.1,24.5,24.2,23
2007,21.8,19.6,22.7,23.6,24.1,24.1,24.7,23.2,23.7,24,23.5,22
2008,21.6,21.6,21.8,23.6,22.9,24.5,23.7,24.1,24.6,23.7,23.2,21.8
2009,21,21.6,22.1,23.2,23.7,24.4,24.5,24.9,25,23.9,23.7,23.3
